2006-09-11 00:42:03 · 13 answers · asked by Andy C 1 in Environment
About a year
2006-09-11 00:44:21 · answer #1 · answered by Fred Flintstone 3 · 0⤊ 0⤋
100% Biodegradable doest not means that how long it degrade, but biodegradable means the composition of the bag was contain 100 percent carbon, recyclables and easily degraded. The cellulose content of this bag was 100 cellulosic and easily decomposed by the organism. I thick biodegradable was based on lignin contain on the fibers present in the bag. Because lignins serves as a bonding again of fiber within the cells. maybe biodegradable may takes along period of time or sudden easily decomposed it depends on the chemical composition of fibers used in a bag to say its 100% biodegradable.
2006-09-15 02:31:53 · answer #2 · answered by Jerry Q 1 · 0⤊ 0⤋
If you leave them out in the sun, about 6 months max.
What's with the UK? Where I live all plastic bags have been biodegradable for over 15 years.
2006-09-11 07:52:35 · answer #3 · answered by cymry3jones 7 · 0⤊ 0⤋
Estimates appears to range from 60 days, up to 2 years (see sources).
FoE has criticised the retailer's biodegradable bags policy, saying they will bring no environmental benefits because they are made from fossil fuels and will still end up in landfill sites which do not have the right conditions to break the bags down.
Tesco said in a statement: “In 2004 we were one of the first supermarkets to introduce degradable plastic carrier bags in our UK stores. These bags break down in as little as 60 days into biomass, carbon dioxide, water and mineral water, with no harmful residue, unlike conventional plastic carrier bags.”
2006-09-11 09:23:28 · answer #4 · answered by Sarah H 2 · 0⤊ 0⤋
That's excellent advertising as about anything will biodegrade if left for an infinate length of time! Well done Tesco!
2006-09-11 07:48:26 · answer #5 · answered by emily_jane2379 5 · 0⤊ 0⤋
Within 11 or 12 months. Other plastic bags take years
2006-09-11 07:47:34 · answer #6 · answered by Blue Blue Blue 6 · 0⤊ 0⤋
well, if you burn them they'll probably decompose...then
1. who biodegrades them? most people drop it into waste bins
2. that's really smelly
3. negative Tesco that bags aren't 100% biodegradeable...who cares? they don't...
2006-09-11 08:11:24 · answer #7 · answered by luluka92 1 · 0⤊ 0⤋
I am no expert but I am sure it is all to do with the conditions involved. I think if the bag was exposed to constant sunlight it would begin to disintegrate quite quickly. I think also if buried in the soil it will do likewise but I think it is weeks or months. I will stand corrected if another answer says otherwise!
2006-09-11 07:46:20 · answer #8 · answered by Raymo 6 · 0⤊ 0⤋
A couple of months, I always save my used carrier bags, and recently went to use one and it just crumbled to dust as I got it out of storage. They break down really well.
2006-09-11 07:51:42 · answer #9 · answered by Swampy_Bogtrotter 4 · 0⤊ 0⤋
I've been told about 3 years, assuning that its outside in a field, hedgerow etc
2006-09-11 07:50:54 · answer #10 · answered by keiraebony 3 · 0⤊ 0⤋