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In typical parlance, the word biodegradable is distinct in meaning from compostable.While biodegradable simply means an object is capable of being decomposed by bacteria or other living organisms, "compostable" in the plastic industry is defined as able to decompose in aerobic environments that are maintained under specific controlled temperature and humidity conditions.
An example of a non-biodegradable compostable plastic is polylactic acid (PLA). [41] [42] The ASTM standard definition outlines that a compostable plastic has to become "not visually distinguishable" at the same rate as something that has already been established as being compostable under the traditional definition. [43]
Some people believe that making plastic shopping bags biodegradable is one way to try to allow the open litter to degrade. Plastic recycling improves usage of resources. Biodegradable films need to be kept away from the usual recycling stream to prevent contaminating the polymers to be recycled.
Even other countries that have better recycling systems in place, like Australia, supposedly only recycle about 16% of plastic packaging each year, so the numbers are quite dismal," Amber told ...
The number of garbage bags allowed per collection is frequently restricted (e.g. three bags per pick up in Markham and four bags per pick-up in Durham Region). The use of clear garbage bags is sometimes mandated, in order to allow collection staff to determine if recyclable material is being thrown out.
In January 2011, the ASTM withdrew standard ASTM D 6002, which had provided plastic manufacturers with the legal credibility to label a plastic as compostable. Its description is as follows: This guide covered suggested criteria, procedures, and a general approach to establish the compostability of environmentally degradable plastics. [110]
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