Egypt has managed to plant trees in the desert using wastewater • Hacker News Board

Re: Egypt has managed to plant trees in the desert using wastewater

#121

Post by Pfhreak » Tue, Oct 20, 2020, 6:56 PM UTC

foxhop wrote: post #119

nitrogen wrote: post #72

Earlier quoted context omitted.

Have you seen Cody's Lab's "Will it Charcoal" series, also on YouTube? Might be interesting to compare your approach: https://www.youtube.com/playlist?list=PLKhDkilF5o68NFFy5p5nM... Anyway, gave you a sub and liked the video on fresh salsa. Home grown salsa is incomparable to any other.

I have seen some of Cody's Lab videos, I'm not really certain it matters whether or not a given resource is desirable for turning into charcoal since, what you are left with at the end of the process is nearly the same either way. You could think of charcoal as a "substrate" or "substrata" which living organisms can live on and with in. My process is a simple fire pit, filling over the period of a couple hours from t…

I'm super curious about retorts and other systems as well. And how complex it is to capture the syngas for use as a fuel (e.g. could I heat a home with it?)

Re: Egypt has managed to plant trees in the desert using wastewater

#122

Post by panny » Wed, Oct 21, 2020, 1:03 AM UTC

krageon wrote: post #118

panny wrote: post #115

Earlier quoted context omitted.

It depends on what is in your wastewater of course, but most toxin typically concentrates in the leaves rather than the beans/corn. From there, the toxin remaining concentrates mostly in organs which can be discarded, rather than the meat. Each step in the food chain acts as a filter. You do not want to consume the crop directly and have buildup in your organs. Also, eating food irrigated with waste sludge is a great…

Steps in the food chain are concentrators for toxins, not filters. Discarding organ meat isn't a given, though I suppose throwing away the liver in a lot of cases would be a solution. It seems like it is a risky play for relatively little gain, but I'm not a food regulator.

>but I'm not a food regulator

I take it you've never set foot inside a waste treatment plant either.

Re: Egypt has managed to plant trees in the desert using wastewater

#123

Post by krageon » Thu, Oct 22, 2020, 12:38 PM UTC

panny wrote: post #122

krageon wrote: post #118

Earlier quoted context omitted.

Steps in the food chain are concentrators for toxins, not filters. Discarding organ meat isn't a given, though I suppose throwing away the liver in a lot of cases would be a solution. It seems like it is a risky play for relatively little gain, but I'm not a food regulator.

>but I'm not a food regulator I take it you've never set foot inside a waste treatment plant either.

It would certainly help if you explained why you feel the need to snark about something you can't really know about. That way the comment might serve as a vehicle for interesting conversation, instead of whatever this is.