bioaeration

A technique of purifying sewage by oxidizing it in centrifugal pumps. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

bioaeration

bioaeration 1. A modification of the activated sludge method of purifying sewage. 2. A system of purifying sewage by oxidation, in which crude sewage is passed through special centrifugal pumps. 3. A sewage treatment method in which microorganisms oxidize the organic matter.
Found on http://www.wordinfo.info/words/index/info/view_unit/2778/11
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