几种阴离子表面活性剂生物降解性评价  

Evaluation on the biodegradability of anionic surfactant

作　　者：周大鹏 黄亚茹 符林健 鲍馨 

机构地区：[1]浙江赞宇科技股份有限公司浙江省表面活性剂重点实验室,浙江杭州310009 [2]嘉兴赞宇科技有限公司,浙江嘉兴314201

出　　处：《日用化学品科学》2014年第1期27-31,共5页Detergent & Cosmetics

基　　金：表面活性剂及配方产品生物降解性能研究人才培养(项目编号:2011F20037)

摘　　要：采用BOD5/COD来评价阴离子表面活性剂的生物降解性,研究了接种物预处理方法、来源、接种量对阴离子表面活性剂生物降解性的影响,优化了降解条件,比较了常见阴离子表面活性剂的生物降解性。结果表明,LAS、AES、MES的生物降解顺序为MES>AES>LAS,28天生物降解率分别为MES 84%、AES70%、LAS 66%,28天生物降解率达到了OECD 301F大于60%的要求。The biodegradability of surfactants were assessed by BOD5 / COD. The effect of microorganism pretreatment method, source of microorganism and inoculation were studied and the degradation conditions were optimized. Biodegradability of several surfactants was compared. The results showed biodegradability of LAS, AES, MES followed the sequence of MES〉AES 〉LAS. After 28 days of biodegradation, the ultimate biodegradability of MES, AES, LAS was 84 %, 70 % and 66 % respectively. The results reached the requirement of OECD 301 F which is more than 60 %.

关 键 词：阴离子表面活性剂 生物降解性 化学耗氧量 生物需氧量 

分 类 号：TQ423[化学工程]