ficant bulk in sew- this he has only transferred it in a degree to some is known as land treatment, broad irrigation, or sew- age that requires purification. As many as 115,000,000 age farming. It was understood for a long time that other community, and has established the modern evil bacteria have… … It would be a practical foolish to method In make laws against the passing of sewage into streams some cases, however, most successful results have been of soil from a trench along which sewage had been if there were no better ways of disposing of it. Modern obtained by land treatment, but such…
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