Metals

... the body, I'm suggesting the ionisation in the air gets transferred to some material that can absorb an ionic charge - like electrolytes or heavy metals in the body). I suppose it might help if I explained what I was thinking. Basically, I see it that: Ions in air (or other similar source) -> ...

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Kinda like a layden jar. Or is all this beyond people?

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I guess you're talking about the sludge. Why are heavy metals of concern after anaerobic digestion but not after aerobic? (or is it always of concern, just the question is put in a weird way?

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It's a concern for heavy metals - esp cadmium - and phosphate that can eutrophy adjacent bodies of water (see Lake Erie issues of last few years). Microbiological concerns are comparatively minor tho some viruses in runoff have been reported.

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Thank you for your reply. To quickly address a couple of points - I'm not saying the positive surface charge of the heavy metals is causing the toxicity (I'm just inquiring into their effects as it's a long chain of reasoning that appears completely disjointed on the surface). I’m also ...

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