| 半连续活性污泥法测定表面活性剂的好氧生物降解度 |
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| 引用本文： | 李遵峰,张高勇,赵郁梅,谷惠先,秦勇.半连续活性污泥法测定表面活性剂的好氧生物降解度[J].日用化学工业,2007,37(2):85-87,96. |
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| 作者姓名： | 李遵峰 张高勇 赵郁梅 谷惠先 秦勇 |
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| 作者单位： | 1. 中国日用化学工业研究院,山西,太原,030001
2. 江苏工业学院,化工系,江苏,常州,213164 |
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| 摘 要： | 用半连续活性污泥(SCAS)法测定表面活性剂的生物降解度,考察了表面活性剂分子在活性污泥体系中的吸附-脱附作用所导致的假降解现象,研究了活性污泥浓度对降解性能的影响,并用SCAS法对AEO7、L-64、LAS和AES进行了初级和最终生物降解度的测定,结果表明以上4种表面活性剂的初级生物降解度均>90%、最终生物降解度均>70%,达到了欧盟洗涤剂法规的相关标准,均属易降解表面活性剂。
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| 关 键 词： | 表面活性剂 半连续活性污泥法 生物降解 测定 |
| 文章编号： | 1001-1803（2007）02-0085-03 |
| 修稿时间： | 2006-08-112006-11-27 |
Aerobic biodegradation of surfactants using semi- continuous active sludge method |
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| LI Zun-feng,ZHANG Gao-yong,ZHAO Yu-mei,GU Hui-xian,QIN Yong.Aerobic biodegradation of surfactants using semi- continuous active sludge method[J].China Surfactant Detergent & Cosmetics,2007,37(2):85-87,96. |
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| Authors: | LI Zun-feng ZHANG Gao-yong ZHAO Yu-mei GU Hui-xian QIN Yong |
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| Affiliation: | 1.China Research Institute of Daily Chemical Industry, Taiyuan 030001, China; 2. School of Chemistry and Chemical Engineering, Jiangsu Polytechnic University, Changzhou 213164, China |
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| Abstract: | False degradation phenomenon caused by the adsorption-desorption action of surfactant molecules in active sludge system were examined.The effects of mixed liquor suspended solid(consistency of the active sludge)on degradation performance were studied.Using semi-continuous active sludge method,the ready biodegradability and ultimate biodegradability of AEO7,L-64(polyether),LAS and AES were determined.Results showed that the ready biodegradability of all of the above-mentioned 4 kinds of surfactant are higher than 90% while their ultimate biodegradability are higher than 70%.Such results meet the requirement of Regulation(EC)and these surfactants are all belong to easily biodegradable surfactants. |
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| Keywords: | surfactant semi-continuous active sludge method biodegradation determination |
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