Questions tagged [metal]

type of matter or [material] that conduct heat and electricity very well. Metals are often malleable and ductile, meaning they can be shaped into different forms relatively easily.

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33 views

How can I recycle an enameled cast iron dutch oven?

I have an enameled cast iron dutch oven that has become unusable due to how cracked and chipped the enamel is. I need to get rid of it, and I'd hate to throw it away because there are several pounds ...
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1answer
127 views

Should I purchase new tins or plastic refills for chocolate powder?

A few brands of chocolate milk mix come in re-sealable tins like this: It is also possible (and slightly cheaper) to buy 'refill packs', in order to reuse the tin. However, these refill packs are ...
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2answers
207 views

Is Lithium mining any better for the environment than fossil fuel extraction?

A friend of mine is adamant that the extraction of lithium for batteries (and the creation of battery cells themselves) is a very environmentally-damaging procedure, potentially even more-so than oil (...
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3answers
191 views

Why is so much railroad steel not recycled?

As I’ve wandered in many places, I have often encountered abandoned railways, or railways still in use surrounded by hundreds of discarded spikes. It makes sense in most places for scrapyards to be ...
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3answers
103 views

Can I recycle greasy metal in the US?

In the United States, I know that paper and plastic are often not recyclable if they are greasy. Can I recycle metal that has vegetable grease on it surface? I'm thinking of canisters that once ...
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4answers
3k views

How can I support the recycling, but not the new production of aluminum?

While the initial production of aluminum is a waste-intensive, energy-intensive process that has negative environmental and social impact through deforestation and contamination of waterways, aluminum ...
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6answers
169 views

Best Uses for Scrap Aluminum

Much to my dismay, my apartment building recently canceled their recycling program. My household generates a fair amount of waste aluminum cans that we were previously sending to the local recycling ...
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2answers
699 views

Are aluminum sheets appropriate for rainwater catchment roof?

I was thinking of building a rainwater catchment system at my place in the boonies, but ... I want to make sure -- priority one -- I'm not going to get toxic stuff in my water. I looked at the ...
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1answer
276 views

How can I form heat sinks from waste aluminum?

I am designing a thermo-electric generation system that would generate electricity from the heat of my wood stove. The active components are bismuth telluride TEG cells that use the Seebeck effect in ...
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3answers
153 views

Is using copper for gutters and roofs a sustainable choice?

I see with some high end housing construction the use of copper for gutters and drain pipes as well as roofs and flashing. Is using copper where it will be exposed to water runoff from rain a good ...
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4answers
9k views

Can alloy wheels (for a car) pay for themselves through fuel savings?

Magnesium alloy wheels (aka mag wheels) are desirable to car enthusiasts due to an increase in performance, but with reduced weight there would also be a fuel saving. Obviously prices and fuel ...
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1answer
385 views

Best options for decarbonising steel production?

At the moment, a very large proportion of steel production relies on coke. So even though electric-arc furnaces are reasonably energy-efficient (Professor Julian Allwood says that the best ones run at ...
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3answers
154 views

Is the metal use per person rising?

Has the metal 'consumption' of consumers risen over the last, say 30 years (arbitrarily chosen number - anything on a similar scale would be interesting). I'm interested in both the amount that is '...
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2answers
1k views

Sustainability of steel versus plastic bottles

In the article Think big, start small, it's claimed that steel bottles are more sustainable than plastic ones: If you can drink the water, travel with a refillable water bottle, preferably made ...