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Page 6 · column 4 of 6 · from the scan, no model involved
some of my central thoughts about sludge.
First, sewage sludge is a product that will not disappear until the human species becomes extinct, which I hope will not happen for a long time.
Second, compared to other means of sludge “disposal,” proper agricultural application of properly constituted sludge makes a lot of sense,
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