VACUUM nitration of sewage sludge, particularly surplus activated sludge from the activated sludge process of sewage treatment, is a well-established process, particularly in the United States, for ...
Septage (septic-tank waste) was chemically conditioned with either aluminum sulfate, ferric chloride, or sulfuric acid. Supernatant was decanted and the thickened sludge vacuum filtered or mixed with ...
IT is interesting to know 1 that the results of experiments on the aeration of sewage sludge, as a preliminary to coagulation and vacuum filtration, may shortly be published by the Rivers Department, ...
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