摘要
从工厂排污口废水中分离．纯化并筛选出一株降解十二烷基聚氧乙烯醚（Brij-30）的菌株，鉴定为伯克氏菌属（Pandoraca sp），命名为B30．当温度为30℃，pH5～8，底物浓度低于0．2g/L，且以蛋白胨做氮源时，菌株B30降解效果最好；Zn^2＋Ca^2＋、Al^3＋、Fe^3＋对菌株B30的生长及其降解性能具有较大的促进作用．在低浓度区（0．05-0．20g／L），菌株B30生长最快，降解活力性最强，12h内能将底物基本降解；在中等浓度区（0．40g，L左右），72h内能降解50％的底物；在高浓度区（0．80-1．50g/L），72h内底物的降解率在30％以下．
A bacterial strain B30 of degrading 12 alkyl-polyoxyethylene （Brij-30） was isolated, purified and sorted from the wastewater in pollution-outlets of a factory, and identified as Pandoraea sp.. At temperature of 30℃, pH of 5-8, Brij-30 concentration lowered 0.20g/L, protein peptone as the nitrogen source, bacterial strain B30 degradation effect was the best. Zn^2＋, Ca^2＋, Al^3＋, Fe^3＋ had greater promoting effect on the growth of bacterial strain B30 and its degradation property. At low concentration area （0.05-0.20g/L）, bacterial strain B30 grew the quickest, degradation activity was the strongest, could degrade basically Brij-30-in 12h; in medium concentration area （about 0.40g/L）, could degradate 50% Brij-30 in 72h; in high concentration area （0.80-1.50g/L）, the degradation rate in 72h was lower under 30%.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2007年第6期768-772,共5页
China Environmental Science
基金
国家"863"项目(2001AA115240)
湖南省科技攻关资助项目(05SK3097.06SK3060)
湖南省环境保护局重大资助专项(湘财建指[2004]90号)
