用密闭瓶法研究GTL烷基苯磺酸最终生物降解性

doi:10.3969/j.issn.1001-1803.2020.06.006

China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (6): 392-395.doi: 10.3969/j.issn.1001-1803.2020.06.006

• Development and application • Previous Articles Next Articles

Research on the ready biodegradability of GTL-alkylbenzene sulfonic acid by closed bottle test

MAO Jian-xiang,FENG Yu(),REN Zhen,LI Yu-xia,GUO Jian-ping,LI Guo-jin

China Research Institute of Daily Chemistry Co., Ltd., Taiyuan, Shanxi 030001, China

Received:2019-09-03 Revised:2020-04-30 Online:2020-06-22 Published:2020-06-22
Contact: Yu FENG E-mail:fengyu9939@126.com

Abstract

Abstract:

The ready biodegradability of GTL-alkylbenzene sulfonic acid was studied by closed bottle test based on the national standard GB/T 21831-2008 “Chemicals-ready biodegradability: closed bottle test”. Some test conditions in the closed bottle test were also optimized. The results showed that the ready biodegradability of GTL-alkylbenzene sulfonic acid was over 60%, which met the requirements of national standard GB/T 26396-2011 “Technical specification for safety of soaps and detergents” for the surfactants used in soap and detergent formulation.

Key words: GTL-alkylbenzene sulfonic acid, biodegradability, closed bottle test

CLC Number:

TQ423

MAO Jian-xiang,FENG Yu,REN Zhen,LI Yu-xia,GUO Jian-ping,LI Guo-jin. Research on the ready biodegradability of GTL-alkylbenzene sulfonic acid by closed bottle test[J].China Surfactant Detergent & Cosmetics, 2020, 50(6): 392-395.

t/d	苯甲酸钠降解率/%	对比LAS 4^#		试样LAS 1^#		对比LAS 3^#
t/d	苯甲酸钠降解率/%	降解率/%	相对偏差/%	降解率/%	相对偏差/%	降解率/%	相对偏差/%
0 7	0 42	0 30	8.3	0 33	3.3	0 27	3.6
14	78	56	-7.1	62	11.0	58	3.0
21	90	68	13.7	70	-3.0	75	12.9
28	93	80	3.2	88	8.0	85	0

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Research on the ready biodegradability of GTL-alkylbenzene sulfonic acid by closed bottle test

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