【作者】 何玉财； 刘幽燕； 童张法；

【Author】 He Yucai, Liu Youyan, Tong Zhangfa (School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004)

【机构】 广西大学化学化工学院；

【摘要】 从污染土壤分离出一株高效降氰菌0205301,将该菌株的细胞固定在沸石载体上,细胞具有机械强度高、可重复使用、与产物易分离等优点。对固定化细胞降解CN-质量浓度为50mg/L的废水进行了研究,得出了反应最佳条件为温度30℃、pH8．0、反应时间6 h, CN-降解率达到99．4％。更多还原

【Abstract】 The bacterial strain numbered 0205301 which can highly effectively degrade cyanide was isolated from contaminated soil. Cells immobilized on the zeolite are of strong mechanical intensity. They can be used many times and separated easily from wastewater. The biodegradation of the wastewater containing CN- in the concentration of 50mg/L by immobilized cells was investigated. The optimum reaction conditions are temperature of 30&℃,pH value of 8.0, and reaction time of 6h. The biodegradation rate for CN- in the wastewater could reach 99.4%.更多还原