What Should We Do With All Our Trash?

Thread Starter

Glenn Holland

Joined Dec 26, 2014
703
The U.S. has been exporting it's trash to China and they're not going to accept it anymore of it:


Solid waste disposal is now a major economic problem and I've been a proponent of "Waste To Energy" (WTE). China's ban is an opportunity to turn our trash into electric power.
 
No such thing as waste, just discarded resources, make do and mend has been replaced by squander and discard. As mentioned elsewhere we even have a bio methane reactor on our septic tank at home now.

Scotland has a zero waste policy, its just starting to make an impact, somewhere along the line we got lazy.
 

nsaspook

Joined Aug 27, 2009
13,277
There are real waste products that nearly impossible to recycle because of extreme toxicity or volatility from advance production processes but most of our trash can be reused but that requires energy due to entropy. If it's possible to make a buck somebody will find a way. We have vast federal spaces open for a possible future resource mining location (landfills) if transportation is cheap.
 

Thread Starter

Glenn Holland

Joined Dec 26, 2014
703
Producing most substances from raw elements requires energy and it also requires energy to decompose those substances back to elements.

One way to get that energy is simply to burn the substance and let the forces of nature do the rest. Fruits, vegetables, and meats are created by nature through the carbon cycle which is ultimately powered by sunlight. Most animal related organic compounds (human and animal waste) can be recycled directly by using sewage sludge as fertilizer.

However there is no way to recycle many complex hydrocarbons such as contaminated plastics.
 

Alec_t

Joined Sep 17, 2013
14,314
However there is no way to recycle many complex hydrocarbons such as contaminated plastics.
Depending on the type of contamination, some such waste can be recycled using heat treatment. For example, a company in the UK is converting certain plastic waste from hospitals into building blocks.
 

Thread Starter

Glenn Holland

Joined Dec 26, 2014
703
Depending on the type of contamination, some such waste can be recycled using heat treatment. For example, a company in the UK is converting certain plastic waste from hospitals into building blocks.
That's the problem.

Converting waste to other products requires a large amount of energy. So we're trading a waste problem for an energy problem.
 

nsaspook

Joined Aug 27, 2009
13,277
That's the problem.

Converting waste to other products requires a large amount of energy. So we're trading a waste problem for an energy problem.
Exactly, What possible and what's practical economically are two separate parts of the trash recycling problem. If the product has value like beer and soda cans at 5 or 10 cents each even bums on the street will recycle.
 

panic mode

Joined Oct 10, 2011
2,751
force makers of products to only use materials that can be recycled. if they want to use something different let them carry the cost.
 
Producing most substances from raw elements requires energy and it also requires energy to decompose those substances back to elements.

One way to get that energy is simply to burn the substance and let the forces of nature do the rest. Fruits, vegetables, and meats are created by nature through the carbon cycle which is ultimately powered by sunlight. Most animal related organic compounds (human and animal waste) can be recycled directly by using sewage sludge as fertilizer.

However there is no way to recycle many complex hydrocarbons such as contaminated plastics.
Or stick the sludge into a microbe cell, get a little energy and 2 in return. Dissolve the CO2 into a hydroponic system so the carbon is easily accessible to the plant roots.

A number of older landfill sites in the UK have BioMethane plants sat on top of them now capturing and using the methane.

There is also a company using enzymes to break down plastic into a liquid fuel.....With though, money and research alot of what we call waste is a resource. Take 15-20 years ago and all the electronic stuff thrown into holes in the ground, Edinburgh university recently wrote a paper on how to get the Gold out of the waste using a green chemical process. Things are changing in the waste industry, its good to see an effort being made.
 
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