8 votes
Accepted

How to recycle disintegrated plastic bags, without negatively impacting the environment?

Unless the plastic bags are labelled with a recycling symbol, there is no easy way to know if the plastic is even recyclable. Good biodegradable plastic bags are made from decomposable materials, ...
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  • 5,903
8 votes
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Pure Plastic vs Biodegradable Plastic

It doesn't appear that there are any specific studies comparing the environmental impact of dog waste disposed of in biodegradable vs non-biodegradable bags, however there's quite a bit of work that's ...
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  • 11.2k
7 votes
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Which materials dumped into landfills are the largest sources of methane?

The source of methane -- degradable organic carbon A 2006 report by the IPCC, Guidelines for National Greenhouse Gas Inventories, Volume 5 -- Waste, includes six different categories of landfilled ...
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  • 11.2k
6 votes
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Throwing organic waste on the ground

Depending on what fruits you're talking about, leaving it to rot out in the open could take weeks up to months (e.g. bananas or orange peels take very long, apple peels on the other hand rot faster). ...
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  • 547
6 votes
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Is there any harm in not sorting biowaste?

It depends a bit how your waste processing facility handles the 'mixed waste' stream. In the best case scenario they sort out everything and your biodegradable waste ends up where it belongs after all;...
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  • 14k
4 votes
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Biodegradable paint for short term use

I think it would be milk paint. http://www.milkpaint.com/ Milk Paint receives USDA Biobased Certification Safe for MCS, Hospitals, Children's things and the Environment
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  • 182
4 votes

Are there companies that have a system for capturing methane from a city's sewer system?

Actually, it's quite a good idea to utilize the gas potential of sewage. As mentioned in Sherwood's answer, this will happen at the treatment plant, not in the sewer. Edit to add I wrote the part ...
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  • 2,816
4 votes

Which is best for dealing with food waste -- composting or a biogas digester?

Probably best to use an anaerobic digester first. Carbon dioxide release occurs when compounds containing carbon are oxidised. In conventional aerobic decomposition, this process is relatively direct ...
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4 votes

Is flushing dog faeces down the lavatory better than bagging and binning them?

Flushing down the toilet is a lot better than have it end up in a city dump where it will remain as long as the bag that contains it lasts. You can purchase dedicated pet waste composting units or ...
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3 votes

Bacterial digestion of leaves

Yes, plant leaves, like pretty much all other organic matter, can be digested by the right bacteria to produce methane, and a nutrient-rich byproduct which can be reused in agriculture as fertiliser. ...
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  • 14.6k
3 votes
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Are there companies that have a system for capturing methane from a city's sewer system?

While some sewer gas is present most of the time in the pipes, the time it takes crap to get from the house to the sewage processing plant is short relative to the amount of gas given off. It would ...
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3 votes

Additional load of using kitchen sink waste disposal units on municipal wastewater treatment

Life cycle assessment has been done on this! This report is by InSinkErator, so they obviously have some commercial interest. Here's the summary, which (to me) seems sound: http://www.insinkerator.com/...
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3 votes
Accepted

How long does it take for different types of textiles to decompose in a landfill?

You are correct that it does seem difficult to find information on this topic, but I found a couple resources which may be of use. From "Textile waste resource recovery: A case study of New York ...
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2 votes

Biodegradable Food Packging

It's not that difficult to make plastic from strong sugars. The trick is to make plastic from less expensive weak sugars like wood chips. One company making plastic from wood chips has given up on a ...
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  • 306
2 votes

Did any country, city, or village implement a coffee separate collection with success?

I am not aware of any collection schemes on country or city level, but here in the Netherlands we have several companies that collect and reuse coffee grounds, mostly from cafés and restaurants. Some ...
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  • 14k
2 votes

Sustainability of waste incineration vs biofuel/biogas?

I can only answer regarding the actual plant. If food wastes need to be trucked all around Sweden when the incinerator is down the road, the picture may be different. Biogasification of food wastes, ...
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  • 2,816
2 votes

Is it better to dispose of food scraps with a garbage disposal unit or into the garbage?

If you find that certain foods are contributing to a lot of "scraps," try googling that specific item to find if there is an alternate use for them. If there is none, and you can't find a creative ...
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2 votes

Is flushing dog faeces down the lavatory better than bagging and binning them?

Well, dogs excrements seem to be something special. First of all, they will not cause any problem to sewage-treatment facilities, as long as they do not come together with bags. It might rather be a ...
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2 votes
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How could I use egg yolk from boiled eggs?

I assume you are already putting some or all of the egg shell in with your plants. I looked around and using egg yolk as a fertilizer has several issues. If you have an outdoor compost pile you could ...
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1 vote

What are the uses of bones from the different animals bred industrially?

Lots of it is ground up and used as animal feed. for the same animals...
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1 vote

How do I setup a relevant waste biodegradation experiment?

While reading your question I get the feeling there are some misconceptions here, so let me start by clarifying a few things: Paper cups are not solely made of paper but have a plastic or wax lining. ...
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  • 14k
1 vote

Organic natural sustainable alternatives to commercial Hair Styling products; clay, wax, pomade, mousse, gel?

Over the last 18 months I've stopped using shampoo at all (just water, and occasionally cider vinegar to prevent smells!) - Google for "no poo hair" for all the lowdown. As well as eliminating ...
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  • 1,032
1 vote

Organic natural sustainable alternatives to commercial Hair Styling products; clay, wax, pomade, mousse, gel?

There are a lot of alternatives to make your own shampoo at home and many of them use castile soap (because it doesn't involve any kind of animal fat in the production process). You have a few ...
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