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Indexed by:会议论文

Date of Publication:2011-01-01

Included Journals:CPCI-S

Volume:6

Page Number:VI252-VI256

Key Words:nitrate-reducing; sulfide-oxidizing bacteria; screening and identification; characteristics of microorganism

Abstract:To develop microorganism technology for removing SO2 and NOx from flue gas, this study sieved out a strain of nitrate-reducing, sulfide-oxidizing Paracoccus sp. ZGL1 from activated sludge and analyzed its phylogenetic characteristics. The optimal initial pH for the growth and removal of substrate of this strain is 7.0; the optimal temperature is 30 degrees C; the optimal rotating table speed is 50 r/min; the optimal substrate concentration is 10 mmol/L; and the best concentration of carbon source is 10 mmol/L. A preliminary analysis on the law of transforming thiosulfate and nitrate-nitrogen in systems under aerobic and anaerobic conditions was conducted.