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Research on flocculation conditions and coking wastewatertreatment of Microbial Flocculants
Wei Xiaojin,Li Jing,He Xuwen
Strategic Study of CAE 2009, Volume 11, Issue 2, Pages 88-91
One strain of Bacillus SP. from the activated sludge is able to produce a stable and efficient bio- flocculation. The flocculation properties and application of this microbial flocculants in wastewater treatment are studied. The results show that the optimum flocculation can be reached in conditions as follows: above pH 7.0, the dosage of coagulation aid CaCl2 is 5.0 % , the flocculants dosage is 0.2 % , and the centrifugal condition of flocculants broth is 4 000 r/min min and last for 30 min. In the optimum flocculation condition the strain boasts obvious coagulation efficiency in wastewater treatment with produced bio- flocculation.
Keywords： microbial flocculants flocculation conditions coking wastewater treatment
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