LAS高抗菌株的降解性能研究(英文)

Studies on Degradation Characteristic of LAS High-resistance Strain

A IAS degradation strain with high resistance,which could take linear alkylbenzene sulphonate(LAS)as only carton origin for growth,was isolated from the drain canal of Hangao Detergent Plant of Xuzhou.The characteristic of its degradation was researched and the results showed that the optimum conditions of this strain for degrading LAS were 30 ℃,pH 6.0,150 ml solution in 500 ml triangle vase,120 r/min,LAS concentration of 200-600 mg/L.The growth amount of the bacteria were up to 0.443(OD460)and the degrading rate was up to 89.4%.The ability of the bacterium to degrade LAS could be as high as concentration of 1 200 mg/L.

A IAS degradation strain with high resistance, which could take linear alkylbenzene sulphonate （LAS） as only carton origin for growth, was isolated from the drain canal of Hangao Detergent Plant of Xuzhou. The characteristic of its degradation was researched and the results showed that the optimum conditions of this strain for degrading LAS were 30℃, pH 6.0, 150 ml solution in 500 ml triangle vase, 120 r/min, LAS concentration of 200 - 600 mg/L. The growth amount of the bacteria were up to 0. 443 （ OD400 ） and the degrading rate was up to 89.4%. The ability of the bacterium to degrade LAS could be as high as concentration of 1 200 mg/L.