用密闭瓶法研究GTL烷基苯磺酸最终生物降解性

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

采用溶解氧测定方法,基于GB/T 21831-2008《化学品快速生物降解性:密闭瓶法试验》所规定的试验条件,对GTL烷基苯磺酸的最终生物降解性进行了测试。并对密闭瓶法的若干试验条件做了初步探讨。结果表明:测试样品GTL烷基苯磺酸的最终生物降解度大于60%,符合GB/T 26396-2011《洗涤用品安全技术规范》中对洗涤剂用表面活性剂最终生物降解度的要求。

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 GTLalkylbenzene 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.