Recycling

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Return and Earn is encouraging all NSW residents to help set a record for the number of eligible drink containers returned during National Recycling Week (11-17 Nov) for their local government area. 
More than 5 million bottles and cans are returned every day – the equivalent of 2 containers for every NSW household. 
“We are challenging NSW residents to put their local area on the recycling map by returning as many eligible drink containers as they can through their local return point for the week,” Janelle Neath, Acting CEO of Exchange for Change, scheme coordinator for Return and Earn said today. 
“We’d like to see all of NSW involved and if you haven’t returned and earned before, this week is the perfect time to set yourself a new habit that’s a win for the environment and your wallet,” she added. 
The latest Return and Earn figures for the first six months of the year show Blacktown, Central Coast and Canterbury-Bankstown local council areas as leading Return and Earners. 
All Return and Earners are encouraged to post photos and stories of their recycling efforts during National Recycling Week tagging #returnandearn #nationalrecyclingweek. 
To avoid queues, check <a href="http://www.returnandearn.org.au/" target="_blank">returnandearn.org.au</a> for peak times or use an automated depot - these can be faster than reverse vending machines plus there’s no need to sort glass from plastic or cans. 
Each container deposited into one of 640 plus Return and Earn return points statewide is diverted from landfill and recycled into a new product while earning the consumer 10c for each return.
 
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NSW's residents urged to take on Return and Earn National Recycling Week challenge

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GUEST OBSERVATION
Recycling in Australia used to be fairly simple. Our older readers may remember bottle drives, paper and cardboard collections, and the trip to the scrap metal merchant to sell metals.
This is called, in recycling parlance, sorting the “streams”. It creates very clean recycling that requires little sorting at a plant.
But recycling got more complicated. As councils organised kerbside collection, it made less economic sense to sort at the kerb. Instead, trucks collected mixed recycling and took it to centralised sorting facilities.
The materials also changed, with glass often replaced by plastics. Plastics like the PET in drink bottles and HDPE in milk bottles were easy to separate and had a ready recycling market.
Then, when developing countries like China opened the floodgates to paper and plastics, there was no need to separate the seven categories of plastics. It was cheaper and easier for Australian companies to bundle it all up and send it to China for “recycling” – in 2017, some <a href="https://www.propertyobserver.com.au/http://www.abc.net.au/news/2017-12-10/china-ban-on-foreign-rubbish-leaves-recycling-industry-in-a-mess/9243184" target="_blank">600,000 tonnes</a>.
When China found they were the world’s dumping ground they <a href="https://theconversation.com/heres-what-happens-to-our-plastic-recycling-when-it-goes-offshore-110356" target="_blank">shut the door</a> and demanded only clean, separated plastics – and then only the ones that had a secondary market in China.
Suddenly Australia was expected to separate more carefully – and this cost money. Now the federal government has pledged <a href="https://www.businessinsider.com.au/australias-recycling-industry-is-getting-a-20-million-boost-but-at-least-one-environmental-group-says-the-government-is-all-talk-2019-8" target="_blank">A$20 million to boost Australia’s recycling industry</a>.
But what is Australia’s recycling industry?
Right now, there are 193 material recovery facilities in Australia. Most are hand-sorted; nine are semi-automated, and nine are fully automated. These are <a href="https://theconversation.com/the-recycling-crisis-in-australia-easy-solutions-to-a-hard-problem-95231" target="_blank">nowhere near sufficient</a> to sort Australia’s annual recycling.
There are two basic ways to sort recycling: mechanical-biological treatment plants, which sort mixed waste into low-grade recycling, and material recovery facilities, which have a stronger focus on extracting reusable stuff.
Here’s how they work.
Mechanical-biological treatment
MBT plants are in various stages of development in Perth, Melbourne, and Sydney. These plants take the rubbish we generate every day and inject it into a rotary drum (a bioreactor) that spins and is heated to 60–70℃.
The process shreds the waste and the organic wastes are stabilised and homogenised. Most of the water evaporates through a fermentation process in which microorganisms break down the organic material and release heat – much like a composting system.
The material then leaves the reactor and passes over a screen that separates the organic waste. The organic waste then fermented and composted, then separated again using a smaller mesh screen. The smallest particles are sent back to the bioreactor drum to provide the microorganisms.
Meanwhile, the larger material from the first screening is sent to a wind separator where the lightweight material, like plastics, are blown the furthest, medium-weight materials, such as textiles, fall in the middle and the heaviest, like metal, glass and stone, fall immediately. The heaviest fraction is sent along a conveyor and metals are separated by a magnetic separator.
The remaining material is sent to another wind separator, along with any remaining material from the other fractions that cannot be separated, which separates combustibles and debris.
The debris (about 10% of the original waste) goes to landfill, and combustibles are sent to a facility that compresses the material into blocks for industrial fuel.
Material recovery facilities
Material recovery facilities accept mixed recycling. The first step is putting recyclables on a conveyor belt where they are carried up to a sorting line.
In the more mechanical processes, people line up along the belt and rip open bags and remove contaminants such as non-recyclable plastic, used nappies and other rubbish, which then goes to landfill.
In the more automated systems, ripping open the bags can be done by machines and the sorting is done in the next stage.
The material then goes onto a scalping screen that sorts out the small foreign objects before passing over a screen in which flat materials such as cardboard pass over and the others drop down. The paper and cardboard go off to storage. Meanwhile, the material that has dropped through hits another screen that breaks any glass, which drops through the screen and is taken by conveyor belt to a recovery bin.
The leftover material goes to fibre quality-control stations where the fibre materials (such as paper) pass by operators who pick off any contaminants before the paper goes into another bin for baling and recycling.
This leaves the cans and plastic containers. Passing this stream over a magnet means any steel cans will be removed from the stream and collected.
Next, any fibre that has made it through the process is removed manually and the plastics are then sorted manually into individual types. The bottles are perforated mechanically so they do not explode when compressed.
With the plastic containers removed, the next step is to divert the aluminium. Powerful magnetic fields created by an eddy current separator throws non-iron metals, like aluminium, forward from the belt into a product bin and non-metals fall off the belt into a separate bin. Finally most of the materials are compressed and baled for efficient transport.
Automated sorting systems
The nine more modern facilities in Australia use optical sorting systems to take out the manual and mechanical sorting. The optical sorters detect anywhere between three and eight varieties of material.
A new facility in New South Wales can detect eight different types of material: aluminium, cardboard, glass, <a href="http://www.pbpackaging.com.au/artGlossary.aspx" target="_blank">HDPE plastic</a>, mixed paper, newspaper, <a href="http://www.pbpackaging.com.au/artGlossary.aspx" target="_blank">PET plastic</a>, and steel. The combined stream passes through a light beam which then instructs a set of high pressure air jets to direct the material to one of eight collection bins.
As worldwide demand for high quality, clean recycling material increases, Australia must upgrade its technology. Incentives and financial help for recycling companies may be necessary to see Australia develop a viable domestic recycling industry.

<img src="https://counter.theconversation.com/content/121120/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">

Jeff Seadon, Senior Lecturer, Auckland University of Technology.
This article is republished from <a href="http://theconversation.com" target="_blank">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-recycling-is-actually-sorted-and-why-australia-is-quite-bad-at-it-121120" target="_blank">original article</a>.
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How recycling is actually sorted, and why Australia is quite bad at it

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GUEST OBSERVATION
As the dramatic shutdown of major recycling company SKM this week has illustrated, recycling is not free.
Householders in Australia pay council rates for a recycling and garbage service. This fee is largely based on the costs of collecting, sorting and processing, and – importantly – what returns are likely from selling the end product.
However, since 2017 the price on the open market for mixed plastics has <a href="https://www.sustainability.vic.gov.au/Business/Investment-facilitation/Recovered-resources-market-bulletin" target="_blank">plummeted</a> from about A$325 per tonne to A$100 per tonne. Mixed glass actually dropped to a negative value, which meant that generators were potentially paying for it to be taken away.
On the other hand, prices for high-quality recycling (not mixed materials or items contaminated with food, for example) largely remained the same or <a href="https://www.sustainability.vic.gov.au/Business/Investment-facilitation/Recovered-resources-market-bulletin" target="_blank">slightly increased</a>.
This shows the market for low-quality, poorly sorted recycling, which Australia has <a href="https://theconversation.com/heres-what-happens-to-our-plastic-recycling-when-it-goes-offshore-110356" target="_blank">previously</a> offloaded to China and other Southeast Asian countries, is ending.
Unless we improve our recycling industry, we must start sending more recyclable material to landfill – as is <a href="https://www.standard.net.au/story/6301694/recycling-in-landfill-following-processor-shutdown-council-confirms/" target="_blank">happening now in some Victoria councils</a>.
So what can we do about it?
Reduce first
Reduction, fundamentally, comes before recycling. We <a href="https://theconversation.com/we-cant-recycle-our-way-to-zero-waste-78598" target="_blank">need to avoid waste to begin with</a>, in our homes and businesses.
As consumers, we should be vocal about seemingly contradictory practices by businesses. For example, supermarkets congratulate themselves on reducing plastic bags, but then use small plastic toys as marketing tools – not even making them out of recycled plastic. These toys are destined for disposal, potentially contaminating recycling streams, and <a href="https://www.sbs.com.au/news/coles-and-woolworths-in-plastic-toy-promo-wars" target="_blank">not all consumers are happy</a>.
Throw out recycling properly
It’s tempting, if you don’t know whether something is recyclable, to simply put it in the yellow bin and assume someone on the other end will “sort it out”. But in reality, incorrectly recycled material can contaminate entire loads of otherwise valuable and useful recyclables, diverting it to landfill.
Councils blame the recyclers for this, who blame the councils. Everyone blames state governments, and they in turn blame the recyclers.
Fundamentally though, we as the generators of waste must assume a high degree of responsibility. We are the ones putting contaminants into the recycling system that everyone else in the management structure must deal with.
It’s our job to familiarise ourselves with what can and cannot be recycled – although, to be fair, this can vary widely from council to council, and should be made easier to check.
If we can clean up the recycling streams, markets should increase and prices for these commodities will similarly rise. This encourages those in the sector to <a href="https://theconversation.com/australian-recycling-plants-have-no-incentive-to-improve-81336" target="_blank">improve their plant technology</a>, and for others to enter in what would then be a more competitive market.
Develop the industry
Clean recycling still requires an established market to be profitable. Governments, as the single largest purchasers in Australia, can play an important role here.
The Victorian government has already <a href="https://www.governmentnews.com.au/victorian-government-moves-on-green-procurement/" target="_blank">committed</a> to helping government agencies increase recycled content in their purchasing requirements. Other governments are doing <a href="https://www.governmentnews.com.au/governments-should-buy-recycled-material-inquiry/" target="_blank">likewise</a> and this is a very positive step.
At a minimum, contracts and tenders should specify a certain level of recycled materials used in products sold to the government, or prefer those suppliers who do have recycled content.
One innovative approach where governments can use their purchasing power is with the use of plastic and glass recyclables in roads. Trials have been extremely positive.
In fact, the Australian Council of Recycling has <a href="https://www.sbs.com.au/yourlanguage/italian/en/article/2019/05/09/call-government-use-recycled-content-build-infrastructure" target="_blank">suggested</a> that using recycled material in construction for the Snowy 2.0 scheme would consume all the recyclables generated in Australia.
We need to chew and walk gum
The most important message is, just as there’s no single person or sector to blame for Australia’s dismal recycling situation, there’s no single solution. We all need to take more care with what we put in the bin. Governments around Australia should incentivise local manufacturers to use domestic recycling.
Recycling companies should certainly improve their technology so they can produce higher-quality material, which can be sold at a profit.
And, as the current SKM debacle illustrates, governments need a plan B when the market breaks down.
Even with all of this, a sustainable domestic recycling industry is some way off. We urgently need to start doing the things we already know will work, rather than playing endless rounds of a pointless blame game.<img src="https://counter.theconversation.com/content/121241/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">
Trevor Thornton, Lecturer, School of Life and Environmental Sciences, Deakin University
This article is republished from <a href="http://theconversation.com" target="_blank">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/dont-just-blame-government-and-business-for-the-recycling-crisis-it-begins-with-us-121241" target="_blank">original article</a>.
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Don’t just blame government and business for the recycling crisis – it begins with us

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GUEST OBSERVATION
An important lesson from the Millennium Drought in Australia was the power of individuals to curb their own water use. This was achieved through public education campaigns and water restrictions. It was a popular topic in the media and in daily conversations before the focus turned to desalination for water security.
Water authorities were also expanding the use of treated wastewater – often a polite term for sewage – for “non-potable” uses. These included flushing toilets, watering gardens, and washing cars and laundry.
Today, the emphasis on recycling wastewater in some locations is declining. The arguments for increased water recycling appear to be falling away now that desalinated water is available.
This trend ignores the fact that the potential supply of recycled water increases as populations grow.
Today most Australian wastewater is treated then disposed into local streams, rivers, estuaries and the ocean. In Sydney, for example, the city’s big three outfalls dump nearly 1 billion litres (1,000 megalitres, ML) a day into the ocean.
Where has recycling succeeded?
Australia has several highly successful water recycling projects.
Sydney introduced the Rouse Hill recycled water scheme in 2001. Highly treated wastewater is piped into 32,000 suburban properties in distinct purple pipes. Each property also has the normal “potable” drinking water supply.
Rouse Hill is considered a world-leading urban recycling scheme. South Australia (Mawsons Lakes) and Victoria (Yarra Valley Water, South East Water) have similar projects.
Our farmers often struggle to secure water for irrigation. Chronic water shortages across the Murray-Darling river system vividly demonstrate this.
Recycled water can play an important role in agricultural schemes. There are successful examples in South Australia (Virginia Irrigation Scheme), Victoria (Werribee) and New South Wales (Picton).
Perth has gone further by embracing water recycling for urban use with plans to treat it to a drinking water standard. Part of the extensive treatment process involves reverse osmosis, which is also used in desalination. The treated water is then pumped into groundwater aquifersand stored.
This “groundwater replenishment” adds to the groundwater that contributes about half of the city’s water supply. The Water Corporation of Perth has a long-term aim to recycle 30% of its wastewater.
Southeast Queensland, too, has developed an extensive recycled water system. The Western Corridor Recycled Water Scheme also uses reverse osmosis and can supplement drinking water supplies during droughts.
Demand management works too
Past campaigns to get people to reduce water use achieved significant results.
In Sydney, water use fell steeply under water restrictions (2003-2009). Since the restrictions have ended, consumption has increased under the softer “water wise rules”. Regional centres including (Tamworth) outside of Sydney are under significant water restrictions currently with limited relief in sight.
<img src="https://res.cloudinary.com/dz9xllyip/image/fetch/c_scale,w_580,q_auto:good/https://s3-ap-southeast-2.amazonaws.com/po.images/2019/2/19/WATER%201.jpg" alt="">
Despite a 25% increase in Sydney’s population, total demand for drinking water remains lower than before mandatory restrictions were introduced in late 2003.
The Victorian government appears to be the Australian leader in encouraging urban water conservation. Across Melbourne water use per person averaged 161 litres a day over 2016-18. Victoria’s “Target 155” program, first launched in late 2008 and revived in 2016, aims for average use of 155 litres a day.
In a comparison of mainland capitals Melbourne used the least water per residential property, 25% less than the average. Southeast Queensland residents had the second-lowest use, followed by Adelaide. Sydney, Perth and Darwin had the highest use.
Although Melbourne water prices are among the highest of the major cities, lower annual water use meant the city’s households had the lowest water bills in 2016-17, analysis by the Australian Bureau of Meteorology found.
<img src="https://res.cloudinary.com/dz9xllyip/image/fetch/c_scale,w_580,q_auto:good/https://s3-ap-southeast-2.amazonaws.com/po.images/2019/2/19/WATER%202.jpg" alt="">
What impact do water prices have?
Clearly, water pricing can be an effective tool to get people to reduce demand. This could partly explain why water use is lower in some cities.
Water bills have several components. Domestic customers pay a service fee to be connected. They then pay for the volume of water they use, plus wastewater charges on top of that. Depending on where you live, you might be charged a flat rate, or a rate that increases as you use more water.
The chart below shows the pricing range in our major cities.
<img src="https://res.cloudinary.com/dz9xllyip/image/fetch/c_scale,w_580,q_auto:good/https://s3-ap-southeast-2.amazonaws.com/po.images/2019/2/19/WATER%203.jpg" alt="">
Flat charges for water per kilolitre (where a kL equals 1,000 litres) apply in Sydney ($2.08/kL)), Darwin ($1.95/kL) and Hobart ($1.06/kL.
However, most water authorities charge low water users a cheaper rate, and increased prices apply for higher consumption. The most expensive water in Australia is for Canberra residents – $4.88 for each kL customers use over 50kL per quarter. The cheapest water is Hobart ($1.06/kL).
Higher fees for higher residential consumption are charged in Canberra, Perth, Southeast Queensland, across South Australia and in Melbourne. In effect, most major water providers penalise high-water-using customers. This creates an incentive to use less.
For example, Yarra Valley Water customers in Melbourne using less than 440 litres a day pay $2.64/kL. From 441-880L/day they are charged $3.11/kL. For more than 881L/day they pay $4.62/kL – 75% more than the lowest rate.
Is recycled water getting priced out of business?
Recycling water may not be viable for Sydney Water. It can cost over $5 per 1kL to produce, but the state pricing regulator, IPART, sets the cost of recycled water to Sydney customers at just under $2 per kL. That’s probably well below the cost of production.
Recycled water, where available, is a little bit more expensive ($2.12/kL) in South Australia.
Subsidies are probably essential for future large recycling schemes. This was the case for a 2017 plan to expand the Virginia Irrigation Scheme. South Australia sought 30% of the capital funding from the Commonwealth.
Where to from here?
Much of southern Australia is facing increasing water stress and capital city water supplies are falling. Expensive desalination plants are gearing up to supply more water. Will they insulate urban residents from the disruption many others are feeling in drought-affected inland and regional locations? Should we be increasing the capacity of our desalination plants?
We recommend that urban Australia should make further use of recycled water. This will also reduce the environmental impact of disposing wastewater in our rivers, estuaries and ocean. All new developments should have recycled water made available, saving our precious potable water for human consumption.
Water conservation should be given the highest priority. Pricing of water that encourages recycling and water conservation should be a national priority.
Ian Wright, Western Sydney University
Jason Reynolds, Western Sydney University 
This article is republished from <a href="http://theconversation.com/" target="_blank">The Conversation</a> under a Creative Commons license.
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When water is scarce, we can’t afford to neglect the alternatives to desalination

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GUEST OBSERVATION
Commonwealth, state and territory environment ministers last week agreed on an ambitious target that 100% of Australian packaging be recyclable, compostable or reusable by 2025. This is no doubt sensible, given the turmoil sparked by China’s crackdown on waste imports.
Having a 100% target is fantastic. But this does not mean that all of the waste we generate in 2025 will necessarily find its way to one of these destinations.
For one thing, the definitions of different waste categories vary by state and territory, so there is no commonly accepted working definition of what constitutes “recyclable, compostable or reusable”.
In practice, these terms depend largely on the infrastructure available. Single-use plastic bags are a good example of a product that is technically recyclable but which is not accepted in most councils’ kerbside recycling collection. That’s because they are often contaminated with food waste and many councils lack the machinery to process them.
On its own, the new 100% target is not enough, because it doesn’t guarantee that recyclable or reusable items will definitely be recycled or reused. To really make a difference, we also need policies and market incentives to ensure that these things end up where we want them to.
Driving recycling
We can see this principle in action by looking at the issue of drink containers. Glass and plastic bottles are already 100% recyclable, yet there is a stark difference in recycling rates between states that do have container deposit schemes, and those that don’t.
In South Australia, which has had container deposit legislation for more than 40 years, almost 80% of drink bottles are recycled. But in Western Australia, where similar legislation is only at the discussion stage, the rate is just 65%.
Despite the Australian Bureau of Statistics’ attempt at a National Waste Account in 2013, little nationwide data are available, thanks to a lack of a consistent reporting framework across different jurisdictions.
Plastic not fantastic
In sectors where not all waste is fully recyclable, the problem is more complex still. Of the seven categories of plastic packaging, only three are economically viable to recycle: PET (soft drink bottles); HDPE (milk bottles); and PVC (shampoo bottles). The other four – LDPE (garbage bags); PP (microwaveable cookware); PS (foam hot drink cups); and other plastics – are less economically viable and so are recycled at much lower rates. While these plastics will still be allowed under the new target as they are technically recyclable, the new target might prompt a switch to less problematic materials.
Globally, around 78 million tonnes of plastic is used every year, but only 14% is collected for recycling, while 14% is incinerated and the remaining 72% ends up in landfill or as litter in the environment.
<img src="https://images.theconversation.com/files/217416/original/file-20180503-153914-16avwu4.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt="">
The fate of the world’s plastics. Author provided
The problems are no less vexing for other types of waste. With market rates for many types of recyclable paper having dropped to zero in the wake of China’s import restrictions, it will be hard to see how some products will be recycled at all, if left purely to economic forces.
Retailers may have to embrace more innovative solutions to improve the quality of recycling waste, such as reverse vending machines, which accept items such as aluminium cans and plastic or glass bottles – as long as they are cleaned and sorted. However, without creating a local waste market or government incentives, we cannot expect retailers to buy their packaging back.
And this is before we even consider the complexities of composting and reuse. Compostable waste as a whole is already facing problems due to a high contamination rate, and lack of separate bin for recycling organic waste in many local councils. Reuse, meanwhile, needs us to tackle the eternal problem of people’s perceptions and behaviour about using old packaging again.
Will some kinds of packaging disappear?
Under the product stewardship initiative, which calls on producers and retailers to take care of the waste produced after consumption of goods, it seems more likely that some materials will simply be phased out of the product supply chain altogether.
The impending plastic bag bans in several states and leading supermarkets offers a chance to replace them not with heavier, more durable plastic, but with biodegradable, renewable and eco-friendly natural materials such as hemp.
In turn, this would boost hemp production (alongside the legalisation of hemp-based medicine and food products in Australia). This could lead to the opportunity for manufacturing industry to produce environmentally friendly biodegradable plastics. Hemp-based biodegradable plastic would significantly safeguard the environment, even if we failed to achieve a 100% recycling of biodegradable plastic packaging. Similarly, glass or aluminium might be used instead of plastic, and are more easily recycled.
Even more innovatively, we might even see the arrival of edible packaging derived from the milk protein casein, formed into film rather like plastic cling wrap, which can be used to package foods such as butter or cheese.
We need a better target
We’ve established that it’s not enough simply to set a target of making 100% of our waste recyclable, compostable or reusable. To really feel the benefits we need a follow-on target, such as actually recycling 100% of our packaging by 2030.
For this to work, we would need three things:
<ol>
<li>legislation, regulations or incentives for manufacturers to develop new packaging types;</li>
<li>an increase in public participation rates in recycling; and</li>
<li>the development of a strong domestic market for recyclable materials.</li>
</ol>
<img src="https://counter.theconversation.com/content/95857/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">Finally, we should remember that waste prevention is better than waste management. Everyone – from governments, to manufacturers, to retailers, to consumers – should focus first on generating less waste in the first place. Then the fiendish problem of what to do with our waste will be all the smaller.
Atiq Zaman, Lecturer, Curtin University
This article was originally published on <a href="http://theconversation.com" target="_blank">The Conversation</a>. Read the <a href="https://theconversation.com/the-new-100-recyclable-packaging-target-is-no-use-if-our-waste-isnt-actually-recycled-95857" target="_blank">original article</a>.
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The new 100% recyclable packaging target is no use if our waste isn't actually recycled: Atiq Zaman

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GUEST OBSERVER
Imagine a world where nothing is wasted and resources are endlessly re-purposed.
From bamboo coffee cups to recycled paint, more companies are championing the idea of a circular economy in which discarded raw materials and products are repeatedly reused, producing no waste or pollution.
According to the United Nations, by 2050 we could need three times more resources than we currently use, due to population growth and unabated consumerism. Specifically, the US National Intelligence Council has stated that globally we will need 35 percent more food, 40 percent more water and 50 percent more energy by 2030 alone.
“In short, the ‘take, make, dispose’ model of production, also known as a linear economy, is forcing the planet into a state of disrepair,” says Sophie Walker, Head of UK Sustainability, JLL. “We inherently live beyond our means and as a result, have seen pressures on resources mount and the potential for irreversible environmental changes grow.”
Taking a fresh approach
In recent times the concept of a circular approach has gathered momentum as an attractive and viable way of generating economic growth and prosperity for people and planet. “The shift to the regenerative circular concept we are seeing is taking place because world governments and businesses have realized that increasing global competition has made access to resources, at affordable prices, an increasingly challenging proposition,” says Walker. “They have also realized that the environmental risks are too severe to continue down the ‘linear’ path.”
And the potential benefits of applying circular principles to domestic economies and businesses are mammoth. The European Commission states that it could bring an estimated net saving of £523 billion to European businesses. In London, net benefits of a least £7 billion per annum along with 12,000 new jobs could be obtained by 2036 by applying circular activities across a variety of sectors according to The London Waste and Recycling Board.
Big companies such as Apple, Unilever, Renault and Google are already taken action to embrace circular solutions. In the fashion world, H&amp;M aims to become 100 percent circular, helped by its in-store garment-collection program and polyester fashion line made from reprocessed PET bottles.Since adopting a circular mindset, professional services firm PwC has saved almost £25 million by cutting paper and energy consumption through measures such as using cooking fat from its canteens and other kitchens to fuel its offices and remanufacturing office furniture where possible. Its cut-throat examination of numerous waste streams helped it achieve zero-waste-to-landfill status in 2012.
The real estate impact
Can the same circular principles work for buildings? Walker thinks so: “In my opinion the answer is yes. The UK building sector utilises over 400 million tonnes of material a year and generates a third of all our waste which comes at great cost, not only to the planet but also to our pockets. But it doesn’t have to be this way. Durable, re-usable components that can be easily put together, taken apart and accessed for repair or replacement can make all the difference. This allows us to adapt to society’s ever-changing needs by extending the life and value of our buildings.”
She points to modular construction, where homes are built in a factory environment using state of the art methods and materials, as an antidote for reducing waste and improving speed and affordability of new builds in the UK housing sector. For example, Legal &amp; General has just built its first modular housing prototype outside its Selby factory in Yorkshire.
Elsewhere, companies are turning waste into building materials. Lendlease is a supporter of Cross Laminated Timber (CLT), a material made from wood chips, normally considered scrap. CLT has a low ecological footprint and is faster and less labour-intensive to construct than conventional materials so much so, that the first 10-storey apartment building made with CLT took five skilled workers just 10 weeks to build. In what it calls “the latest example of high-performance workplaces, setting new benchmarks in environmentally sustainable building practices,” Lendlease is using CLT to erect the tallest and largest engineered timber office building by gross floor area in the world in Brisbane, Australia.
Why the future is circular
“Circular thinking really is gaining traction in the property sector,” Walker explains. “There are firms out there building entirely with circular economy principles.” The aptly named Circular Building was one of the first buildings in the UK built to satisfy these values, in which all parts were intended to be used to their full potential and to the duration of their life cycle.
“Another example is the Park 20|20 office development in Amsterdam which embraces a circular-economy approach by creating closed cycles for materials, energy, waste, and water, with everything having the potential to be composted or recycled back into industry,” she adds.
As circular thinking catches on, the need to move towards a new model is no longer in doubt nor are the potential economic opportunities. “Whether it’s property, retail or consumer goods, businesses are realising that big cost savings can be made from being socially and environmentally responsible and efficient,” says Walker.
To recycle the phrase Mark Farmer used in his assessment of the British construction sector: “the choice is simple, modernize or die.”
This article by Emma Hollingshead appeared in <a href="https://www.jllrealviews.com" target="_blank">JLL Real Views</a>
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How companies are reaping the benefits of circular thinking

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<img src="https://counter.theconversation.edu.au/content/78404/count.gif?distributor=republish-lightbox-advanced" alt="The Conversation" width="1" height="1">
GUEST OBSERVER
Since Australia stopped incinerating rubbish in the middle of the 20th century, most of our solid waste has ended up in landfill.
Some 20 million tonnes of garbage each year makes its way to hundreds of landfill sites, mostly clustered around our capital cities. This represents about 40 percent of total waste generation in Australia.
Surprisingly, we don’t know exactly how many landfills exist, where they all are, or how large they are. However, government data suggest that there are around 600 officially registered sites, and perhaps as many as 2,000 unregulated ones, most of them small.
Since the 1990s, the number of landfills in Australia has fallen but the average size has grown. These large sites are increasingly sophisticated and generally run by large private companies. Around 75% of landfilled waste in Australia goes to 38 sites. 
<h2>What’s in landfill?</h2>
Waste in landfills falls into three major categories: household rubbish, commercial and industrial waste, and construction and demolition waste.
The average domestic bin contains 60% organic material, with the bulk coming from food (40%) and garden waste (20%). This is a primary source of landfill gas, mainly methane, which is produced when organic waste decomposes. The methane is collected and combusted using a flare or an electricity generation system. Flaring of landfill gas converts the methane to carbon dioxide, which has a significantly lower global warming potential than methane.
Of course, it’s better to reduce landfill gas in the first place. New technologies in composting and anaerobic digestion can help divert organics from landfill.
In 2013-14, the commercial sector generated 17 million tonnes of waste, representing just under a third of all waste in Australia. Around 7 million tonnes ended up in landfill. The major trends in commercial waste treatment include sourcing separated food and organics collection, and alternative waste treatment as levies and grants increase.
When water passes through toxic or hazardous waste it picks up contaminants and becomes leachate, which can contaminate the surrounding land and water.
Around 40% of Australia’s waste, or some 19 million tonnes a year, comes from construction and demolition. This typically includes timber, concrete, plastics, wood, metals, cardboard, asphalt and mixed site debris such as soil and rocks. However, only 8.5 million tonnes ended up in landfill, as levies in most states make it cheaper to recycle this material.
About 10.5 million tonnes, or 55%, was recovered and recycled in 2008-09 with recovery rates of greater than 75% being achieved by best performing jurisdictions. 
<h2>How many landfills are in Australia, and where?</h2>
We calculate the number of landfills in Australia by looking at national databases like the National Pollution Inventory or the National Greenhouse and Energy Reporting Scheme. However, while all operating landfills are licensed by their local councils, many regional sites fall below the size threshold where they’re required to report to these programs, or apply for environmental licenses. Therefore, we can’t say exactly how many landfills are in Australia – although someone could find out by calling every local council in the country.
The map below, from the National Waste Management Facilities Database, shows all known waste management, recycling and reprocessing facilities in Australia. 
<a href="https://www.propertyobserver.com.au/images/2017/06/07/file-20170530-16290-10gkvwh.jpg" target="_blank">Click to enlarge</a>
<img src="https://res.cloudinary.com/dz9xllyip/image/fetch/c_scale,w_580,q_auto:good/https://s3-ap-southeast-2.amazonaws.com/po.images/2017/06/07/file-20170530-16290-10gkvwh.jpg" alt="">
<div class="enlarge_hint">The National Waste Management Database.</div>
Queensland reports the most sites, followed by New South Wales and Western Australia. Since lifting dumping levies, media reports estimate that 10% of Queensland’s landfill comes from interstate.
Victoria and Tasmania have a high proportion of large-to-medium sites, while NSW has the most large sites, matching its relatively large population. Queensland, Western Australia and South Australia have relatively high numbers of small sites, reflecting their highly dispersed populations. 
The Northern Territory, the only other jurisdiction to not have a landfill levy, generates just 1% of Australia’s waste. 
<a href="https://www.propertyobserver.com.au/images/2017/06/07/file-20170528-6396-qdc0st.jpg" target="_blank">Click to enlarge</a>
<img src="https://res.cloudinary.com/dz9xllyip/image/fetch/c_scale,w_580,q_auto:good/https://s3-ap-southeast-2.amazonaws.com/po.images/2017/06/07/file-20170528-6396-qdc0st.jpg" alt="">
Reported numbers of Australian landfills by jurisdiction. Analysis of landfill survey data 2013 © WMAA and Blue Environment
Most of Australia’s waste goes to a small number of large sites. However, the majority of Australia’s landfills are small, receiving less than 20,000 tonnes of waste per year. The lack of precise national data on these sites is a real problem, as small, unlined landfills can still have major localised impact. 
<a href="https://www.propertyobserver.com.au/images/2017/06/07/file-20170528-6380-ajiq2.jpg" target="_blank">Click to enlarge</a>
<img src="https://res.cloudinary.com/dz9xllyip/image/fetch/c_scale,w_580,q_auto:good/https://s3-ap-southeast-2.amazonaws.com/po.images/2017/06/07/file-20170528-6380-ajiq2.jpg" alt="">
Reported tonnes of waste deposited by landfill size class and jurisdiction. Analysis of landfill survey data 2013 © WMAA and Blue Environment
<h2>Who’s in charge?</h2>
Local councils are responsible for landfills in their areas, but the largest sites in Australia are run by private companies. In jurisdictions with small populations, like Tasmania and the Northern Territory, no private companies operate.
The Woodlawn landfill, 240km southwest of Sydney, gets more waste than any other landfill in Australia.
The Rochedale landfill, 18km south east of Brisbane, was in the countryside when established in the early 1990s. Now surrounded by suburban houses, it highlights the importance of appropriate planning and management of these sites. This is why Adelaide’s largest landfill is located 90km north of the city. 
The variety of jurisdictions and operators involved, and their different sizes, suggests that landfills are not consistently managed. 
The National Resource Recovery targets encourage private operators to reclaim and divert some of the waste going to landfill. The diversion targets vary from state to state. South Australia and the ACT have the most ambitious targets and are most advanced in meeting them. Queensland, on the other hand, is the furthest from their targets – this is likely to be a consequence of not having a landfill levy. 
 <a href="https://www.propertyobserver.com.au/images/2017/06/07/file-20170529-25219-1or07ht.png" target="_blank">Click to enlarge</a>
<img src="https://www.urban.com.au/images/2017/06/07/file-20170529-25219-1or07ht.png" alt="">
National Resource Recovery Targets. MSW represents household waste, C&amp;I represents commercial waste and C&amp;D represents construction and demolition waste. Since 2014, Victoria has aimed to maximise diversion without a headline target. MRA Consulting Group, October 2015
Landfills, however, can offer an average 50 percent methane gas capture during its life. The solid waste in landfills can also be an energy resource in its own right, though this has largely been untapped. 
<h2>The future of landfills and resource recovery</h2>
So what lies ahead? Landfills will remain an integral part of the Australian waste cycle into the foreseeable future. Well managed, best practice landfills provide safe disposal of residual waste and the potential for resource recovery.
We have observed an increase in investment in resource recovery infrastructure, which is possibly driven by rises in landfill levies. But more is needed: the 2016 Infrastructure Australia report did not mention waste or recycling.
In order to provide key integrated infrastructure, governments need to recognise that waste (and its proper management) delivers essential services like electricity or water.
<a href="https://theconversation.com/profiles/bernadette-mccabe-147872" target="_blank">Bernadette McCabe</a> is associate professor and Principal Scientist, University of Southern Queensland.
<a href="https://theconversation.com/profiles/william-clarke-380521" target="_blank">William Clarke</a> is professor of waste management, The University of Queensland.
Both are authors for The Conversation.
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How much landfill does Australia have?

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<img src="https://counter.theconversation.edu.au/content/65552/count.gif?distributor=republish-lightbox-advanced" alt="The Conversation" width="1" height="1">
GUEST OBSERVER
Have you ever found yourself facing your recycling bin, completely befuddled about whether or not you can put a particular item in it?
You’re not alone. According to Planet Ark, nearly half of Australians find recycling confusing. 
Australia’s recycling rules can seem horrendously complicated, but fortunately they are becoming more simple.
In the meantime, here’s a brief guide to some of the golden rules of kerbside recycling, plus what to do with materials that can’t go in your recycling bin. 
<a href="https://cdn.theconversation.com/files/162140/width754/image-20170323-13486-5j3j3r.png" target="_blank">Click to enlarge</a>
<img src="https://cdn.theconversation.com/files/162140/width754/image-20170323-13486-5j3j3r.png" alt="">The Conversation, <a class="license" href="https://creativecommons.org/licenses/by-nd/4.0/">CC BY-ND</a>
As the first rule above says, most papers, plastics, metals and glasses can be recycled, but there are a few exceptions and rules for special handling. To find out more, click on each material below. This will also tell you how else you can recycle the items that can’t go in your kerbside recycling bin.
<div id="responsive-iframe-0">Other helpful sources for recycling rules include: </div>
<ul>
<li>
Planet Ark’s mobile app, online guide and National Recycling Week website.
</li>
<li>
The Victorian government’s Get it right on bin night and the South Australian government’s Recycle right campaigns.
</li>
<li>
Sydney’s Garbage Guru, which lets you look up any item and see the best thing to do with it – it’s likely to be applicable to many other cities across the country.
</li>
</ul>
<h2>Why do some things need special treatment?</h2>
Some items need special handling before they can go in kerbside recycling. These are generally either very small items, or complex/composite items.
Small items, like scraps of paper or foil, steel bottle caps or plastic bottle lids and coffee pods, can cause problems if simply placed in a recycling bin. Because they are small, they can literally fall through the cracks in sorting machines, causing damage to the machines or ending up in landfill. 
Combined or composite items are complex items that contain multiple materials, such as newspapers or magazines in plastic wrap, or composite items like Pringles tubes. Automated recycling machines can cope with very small amounts of different materials, such as staples in paper, plastic windows on envelopes, paper labels on glass jars, or slight residues of food on containers. But items with multiple materials can confuse the machines and end up in the wrong category, introducing contamination. 
<h2>Why is contamination an issue?</h2>
Contamination is when things that can’t be recycled through kerbside recycling systems end up in the recycling system.
Contamination can create many problems: recyclable materials may need to be dumped in landfill; the output of recycled materials is less pure; workers at recycling facilities can be put at risk; and in some cases machinery can be damaged. All of these lead to increased costs of recycling that may be passed on to residents.
For example, glass recycling programs are designed only to process glass bottles and jars, which are crushed and then melted down and re-used. Drinking glasses, ceramics, plate glass (window panes) and oven-proof glass melt at higher temperatures than normal glass bottles and jars. When these are incorrectly placed in recycling, this tougher glass can remain solid among the melted glass, leading to impure glass products and damaged machinery.
Better technology is helping to remove contaminants during sorting. But it’s always best to get it right at the source. Planet Ark says that a good recycler’s motto is: “If in doubt, leave it out.”
<h2>What about things that can’t be recycled at home?</h2>
Just because something can’t be recycled through kerbside collections, that doesn’t mean it can’t be recycled at all. 
New channels for recycling more complex items have been pioneered by organisations such as Planet Ark and TerraCycle, as well as by local councils, industry and government under schemes such as the Australian Packaging Covenant and the National Television and Computer Recycling Scheme.
Most councils have drop-off locations for larger items that can’t go in kerbside bins, such as electronics, batteries, light bulbs, chemicals and hazardous waste, as well as pickups for white goods and mattresses.
Many supermarkets in metro areas have REDcycle bins that accept soft plastics like plastic bags, soft plastic packaging, biscuit packets and trays, dry cleaning bags, and other “scrunchable” plastics.
Industry take-back programs include Fridge Buy Back, TechCollect for electronics, and ReturnMed for unwanted or expired medicines.
Some big companies now have collection points, such as Ikea which take used batteries, light bulbs, mattresses and allen keys, and <a href="https://corporate.aldi.com.au/en/corporate-responsibility/operations/battery-recycling/">Aldi</a> which also takes used batteries.
<a href="https://cdn.theconversation.com/files/138174/area14mp/image-20160919-16988-6b0ew4.png" target="_blank">Click to enlarge</a>
<a href="https://cdn.theconversation.com/files/138174/area14mp/image-20160919-16988-6b0ew4.png"><img src="https://cdn.theconversation.com/files/138174/width754/image-20160919-16988-6b0ew4.png" alt=""></a>
<div class="enlarge_hint"> </div>
Free Terracycle recycling programs. Adapted from TerraCycle (https://www.terracycle.com.au)
Recycling is vital to reducing resource use and waste to landfill, and so getting it right is crucial.
Jenni Downes is research consultant, Institute of Sustainable Futures, University of Technology Sydney and author for The Conversation. She can be contacted <a href="https://theconversation.com/profiles/jenni-downes-12549" target="_blank">here</a>.
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