Many think that this type of recycling is not a solution, but that instead the world should be seriously focused on the first “R” — which is reduce. We should shun single-use plastic (such as your average PET bottle or disposable container) altogether, they argue. The world’s oil resources are diminishing; does technology like this enable our denial of that fact, or is it a hopeful and constructive step in the right direction?
Typically made from petroleum, it is estimated that 7% of the world’s annual oil production is used to produce and manufacture plastic. That is more than the oil consumed by the entire African continent.
Plastic’s carbon footprint includes landfilling and incineration, since sadly, its recycle rate is dismally low around the globe.
Plastic trash is also polluting our oceans and washing up on beaches around the world. Tons of plastic from the US and Japan are floating in the Pacific Ocean, killing mammals and birds. Perhaps this tragedy is best captured in the TED presentation by Capt. Charles Moore of the Algalita Marine Research Foundation.
Using less, or use it better?
Thankfully, there are those who fully appreciate that plastic has a higher energy value than anything else commonly found in the waste stream. A Japanese company called Blest created a small, very safe and easy to use machine that can convert several types of plastic back into oil.
“If we burn the plastic, we generate toxins and a large amount of CO2. If we convert it into oil, we save CO2 and at the same time increase people’s awareness about the value of plastic garbage,” says Akinori Ito, CEO of Blest.
Blest’s conversion technology is very safe because it uses a temperature controlling electric heater rather than flame. The machines are able to process polyethylene, polystyrene and polypropylene (numbers 2-4) but not PET bottles (number 1). The result is a crude gas that can fuel things like generators or stoves and, when refined, can even be pumped into a car, a boat or motorbike. One kilogram of plastic produces almost one liter of oil. To convert that amount takes about 1 kilowatt of electricity, which is approximately ¥20 or 20 cents’ worth.
The company makes the machines in various sizes and has 60 in place at farms, fisheries and small factories in Japan and several abroad.
“To make a machine that anyone can use is my dream,” Ito says. “The home is the oil field of the future.”
Perhaps that statement is not as crazy as it sounds, since the makeup of Japanese household waste has been found to contain over 30 % plastic, most of it from packaging.
Continually honing their technology, the company is now able to sell the machines for less than before, and Ito hopes to achieve a product “that any one can buy.” Currently the smallest version, shown in the videobrief, costs ¥950,000 (US $9,500). [Note of 30 November 2010: Blest informs us that, since we visited them last year, improvements have been made to the machine and the price is now ¥106 million (around US$12,700) without tax.]
Changing how we think
“Teaching this at schools is the most important work that I do,” Ito reflects. In Japan too, he visits schools where he shows children, teachers and parents how to convert the packaging and drinking straws leftover from lunch.
If we were to use only the world’s plastic waste rather than oil from oil fields, CO2 emissions could be slashed dramatically, he says.
“It’s a waste isn’t it?” Ito asks. “This plastic is every where in the world, and everyone throws it away.”
A mountain to climb down
The wonderful invention of plastics has spawned a huge problem that we are struggling to solve. With peak oil looming, things are set to change, but we find ourselves on top of an oil and plastic mountain, and the only way forward is down.
So while many solutions like this are not without hiccups or detractors, they are a step forward in coming to terms with our oil and plastics dependence and help raise awareness of the carbon footprint of its production and use. Somehow we all know that plastics is a habit we need to kick. But that doesn’t seem to make it any easier.
Perhaps the best thing you can do is to look more deeply into this issue. A good place to start is the 2008 Addicted to Plastic documentary from Cryptic Moth productions. You can watch the trailer online and maybe request it at your local video rental store.
According to the blurb, “the film details plastic’s path over the last 100 years and provides a wealth of expert interviews on practical and cutting edge solutions to recycling, toxicity and biodegradability.”
Next it is just a matter of taking action to break our love affair with plastic.
Learning to 'Live Free' comes from experience and personal growth ... Lets break our conditioning!