LAS对有机物生物降解的影响

Effect of Linear Alkylbenzene Sulphonates on Organic Matter Biodegradation

本文讨论了ＬＡＳ对需氧污水处理设备的净化效果及ＬＡＳ本身在这些设备中的生物降解的影响。研究结果表明，当ＬＡＳ浓度大于２０ｐｐｍ时，可影响有机物需氧降解的ｐＨ值的自调节力，因此，需进行中和。ＬＡＳ对有机物及其本身在需氧降解中的降解力有影响。

This article discusses the effect of LAS on the purification efficency of aerobic sewage treatment plants,and LAS biodegradation itself in such plants.The results of this study suggest that LAS influence pH self-regulation capacity in aerobic degradation of organic matter when its concentration is greater than 20 ppm.For this,external neutralisation is required in such cases.Likewise,LAS influences the degradation capacity of both organic matter and itself in aerobic processes,reducing the biodegradation rate.