表面活性剂及液体洗涤剂终极生物降解的方法与性能研究  

Study on the methods and performance of ultimate biodegradation of surfactants and liquid detergents

作　　者：洪玉倩 葛赞 洪郑 雷小英 黄晴 Yuqian Hong;Zan Ge;Zheng Hong;Xiaoying Lei;Qing Huang(Zanyu Technology Group Co.,Ltd.,Hangzhou,Zhejiang 310030,China)

机构地区：[1]赞宇科技集团股份有限公司,浙江杭州310030

出　　处：《日用化学工业（中英文）》2022年第10期1094-1099,共6页China Surfactant Detergent & Cosmetics

摘　　要：生物降解性能分为初级生物降解性能和终极生物降解性能两种,是考察表面活性剂对环境影响的重要因素。随着社会的发展,人们对环境的重视程度日益加深,而目前系统地对常用表面活性剂的终极生物降解性能研究较少。在此,采用总有机碳(TOC)分析仪结合GB/T 21856—2008《化学品快速生物降解性二氧化碳产生试验》对10种常用表面活性剂和市场上不同品牌和类别的液体洗涤剂进行终极生物降解性能研究,考察它们对环境的影响。该方法简单易操作,重复性高。分析结果表明,几种常见的表面活性剂,降解率都在60%以上,符合环境要求。其中除LAS外,其余几种皆大于80%,终极降解性能优异。市场上一些洗涤剂产品降解率也都大于80%,终极生物降解性能优。Biodegradability is classified into primary biodegradability and ultimate biodegradability,which is an important factor to assess the impact of surfactants on the environment.With the development of society,people have paid more and more attention to the environment,and however,there are few systematic studies on the ultimate biodegradation performance of commonly used surfactants.Herein,a total organic carbon(TOC)analyzer combined with GB/T 21856—2008“Chemical—Ready biodegradability—CO_(2) evolution test”was used to analyze the ultimate biodegradability of 10 commonly used surfactants and liquid detergents of different brands and categories on the market,to examine their impact on the environment.This method simplified the experimental device and was easy to operate.In addition,it did not require to collect carbon dioxide,so the experimental data would not be able to deviate due to incomplete carbon dioxide capture.The error analysis of the experimental results shows that the method has stable experimental data and high repeatability.The results of ultimate biodegradability show that,the degradation rate of several common surfactants is above 60%,which meets the environmental requirements.Except for LAS,the rest are all more than 80%,indicative of excellent ultimate biodegradability.The degradation rate of some detergent products on the market is also greater than 80%,indicative of excellent ultimate biodegradability.

关 键 词：总有机碳分析仪 终极生物降解 表面活性剂 洗涤剂 

分 类 号：TQ423[化学工程] TQ649