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>Properly run landfill doesn’t hurt the environment in itself. >[...] But a well run landfill site has [...] electricity generation from gases produced by deca
by scythe 7y ago
>Properly run landfill doesn’t hurt the environment in itself.
>[...] But a well run landfill site has [...] electricity generation from gases produced by decaying matter,
This sounds like a pipe dream. We don't even have reliable estimates on how much landfill outgas there is, much less a good system for burning it. It's believed to be largely methane, which would be valuable without further processing if it could be captured.
Incidentally, the word "methane" does not appear in the article at all, and no systems describing such a gas capture apparatus are mentioned. But just think about it: a landfill is enormous; they are some of the largest things humans ever build, and some of them are visible from low Earth orbit. How do you plan to capture all of the gas coming out of that? Be honest!
Meanwhile, incinerators (of various designs) work today, have almost all of the upsides of landfills with none of the downsides. The article dismisses incineration with a single reference (b), which is actually an article from Planet Money focusing on recycling. The actual source is probably a footnote within a footnote, because that's as much attention as Americans will pay to incineration, I guess.
I agree that we need to talk about recycling less, but the correct alternative is incineration, not landfills.
- gambiting 7y agoI mean, to answer your methane question - after our local landfill was filled up, it was covered with foil, then several layers of soil and finally grass - it's a public park nowadays. The methane is collected at the highest point of the hill that was the landfill, I imagine the layer of foil forces it to go up to the single outpipe at the top.
- tomatocracy 7y agoYes, there really are several successful companies who specialise in landfill gas recovery, it's profitable and practical. But I don't think it's neccessarily a reason to continue with landfill in itself.
- pintxo 7y agoA handful of European countries has actually banned putting household waste in landfills. If its not recycled it gets incinerated.
- bikenaga 7y agoThere are a number of landfills in PA which produce methane which is used directly, or for generating power. Here's a list: https://www.dep.pa.gov/Business/Land/Waste/SolidWaste/MunicipalWaste/Landfill-Methane-Outreach-Program/Pages/PA-Landfill-Methane-Projects.aspx https://www.dep.pa.gov/Business/Land/Waste/SolidWaste/Munici...