You Gonna Eat That? It Could Become Plastic

Kaz Riprock writes "Jian Yu and associates at the Hawaii Natural Energy Institute have been working on a system to convert food waste into plastic polymers. There is a CNN article that gives an overview of the process. More information on the anaerobic acidogenesis and aerobic synthesis at Dr. Yu's page at HNEI. This could be a really good step in the right direction, assuming it provides a cheaper source of plastic than current methods (to be accepted and highly regarded by the plastic industry)."

Comments

Biodegradable plastic from foodstuffs.

[Xner]

The first time I heard of biodegradable pastics manufactured from things usually regarded as food was in the late 1980s.
The Italian company Montedison had developed a compound from corn that they called Mater-Bi, and you could get a watch made out of the stuff with the italian version of the mickey mouse magazine.

The only practical applications that I have seen so far are things like this bio-degradable bag, for groceries and waste disposal.

Nice, but still missing something.....

[RyoSaeba]

Sounds nice, but they aren't addressing the main trouble: the overuse of plastic everywhere !!
Just do a little experiment: during a full week, do your shopping as usual, and pay attention to all plastic stuff you trash immediately after purchase. Figure you really needed how much of all that plastic ?
I'm pretty sure plastic use could be reduced drastically in certain fields, before even thinking of making it cheaper....

save some time

[Hubert_Shrump]

In the case of Moon Pies, you can begin milling / molding operations immediately.

Nope -- we use too much plastic

[upper]

Plastic is a useful material, and there are times when it is a better choice than anything else. But an awful lot of plastic used today isn't necessary. Consider a typical plastic toy for a preschooler. Plastic is often a good choice for the toy itself -- you can make odd shapes easily, and the result can be smooth, rugged, and rustproof with no paint to put on or chip/wear off. But when you buy it, it's nested in a plastic box-filler, in a box which is shrink-wrapped, and you take it out of the store in a plastic bag. That's four layers of packaging, three of them plastic. One of the layers may be necessary, but only if there are multiple pieces.

Furthermore, plastic is only "easily and cheaply recycleable" if you leave a bunch of things out of the numbers:

• Only PETE (#1) and HDPE (#2) are recycled in any volume; other plastics are almost completely burned or landfilled.
  
• Recycled plastic bottles aren't made into new plastic bottles. They're made into things like "plastic lumber" and carpets. Then they're landfilled. So much for repeated use.
  
• Cleaning and de-labeling a plastic bottle isn't usually a big deal -- but do you know how hard it is to wash out a thin plastic bag? How about separating the plastic in a bubble-pack from the paper?
  
• Because beverage bottles are low density (i.e. very bulky for their weight) they are a nuisance to transport. The truck fuel used transporting them isn't trivial.
  

Plastic recycling is a sham. I do it, because it might someday evolve into something real, and because twice through is better than once through. But mostly I try to buy less plastic packaging.