Abstract
AbstractThe activated sludge that had been sufficiently cultivated with DMF‐containing waste water was entrapped and immobilized in spherical poly(vinyl alcohol) (PVA) hydrogel particles. Features of numbers and distribution of bacteria in the resultant PVA gel were estimated. The DMF‐decomposing bacteria namedBacillus cereusD‐1 was isolated. Several morphological and physiological responses of the bacteria were revealed. Spherical PVA gel with the DMF‐decomposing bacteria prepared through of freezing and thawing was tested for treatment of DMF‐containing effluent. Test results have shown the ability of stable operation and maintenance at the same capacity of 1 kg/m3/day by both a basic study and a bench plant test. © 1995 John Wiley & Sons, Inc.
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