十二烷基苯磺酸钠的微生物降解  

Microbial Degradation of Sodium Dodecyl Benzene Sulfonate

作　　者：刘庆都[1] 章健[1] 

机构地区：[1]安徽农业大学植物保护系

出　　处：《环境科学研究》1998年第1期63-64,共2页Research of Environmental Sciences

摘　　要：从长期受十二烷基苯磺酸钠（ｓｏｄｉｕｍｄｏｄｅｃｙｌｂｅｎｚｅｎｅｓｕｌｆｏｎａｔｅ，ＳＤＢＳ）污染的土壤中，筛选到３株对ＳＤＢＳ降解能力很强的细菌，分别为荧光假单胞杆菌（ＰｓｅｕｄｏｍｏｎａｓｆｌｕｏｒｅｓｃｅｎｓＰ－１１）、芽孢杆菌（Ｂａｃｉｌｕｓｓｐ．Ｂ－２４）、气单胞菌（Ａｅｒｏｍａｎａｓｓｐ．Ａ－２）。３株细菌均属中温细菌，最适生长温度为３０℃，最适生长ｐＨ为７０，在低浓度ＳＤＢＳ中生长比在高浓度中生长好。在选定的最适条件下，测定了３株菌对ＳＤＢＳ的降解能力，在含４０ｍｇ／ＬＳＤＢＳ的培养基上，于２８℃生长７２ｈ，ＳＤＢＳ的降解率均超过９５％，其中Ｐ－１１达１００％。Tree strains of bacteria using sodium dodecyl benzen sulfonate (SDBS) as carbon source for growth were isolated from the soils polluted by SDBS,and identified as Psedomonas fluorescens P-11,Bacillus sp.B-24 and Aeromanas sp.A-2.Their optimum culture conditions were also studied.Their optimum growth pH and temperature were 7.0 and 30℃ respectively.At the optimum conditions their degrading capacities on SDBS were investigated.Their removal rates for SDBS were more than 95% after the strains growing on the liquid medium containing 40 mg/L of SDBS at 28℃ for 72 hours,among which the removal rates of P-11 for SDBS was nearly 100%.

关 键 词：十二烷基 苯磺酸钠 微生物降解 降解 废水处理 

分 类 号：X783.03[环境科学与工程—环境工程] X703