污水处理厂中雄激素分布及行为的研究进展

人类及生物体内在自然代谢及药物使用过程中产生的甾醇类激素如果在污水处理厂中未能完全去除或是未加处理直接排放,则会污染受纳水体,并对其中的鱼类等生物造成影响,其中人体内产生的雄激素睾酮的浓度比雌激素雌二醇要高1~3个数量级.本文比较了当前各地污水处理厂中的雄激素分布,阐述了污水处理工艺对雄激素的去除效果;其中,格栅、初沉池等初级处理工艺基本不去除雄激素;厌氧-缺氧-好氧等二级处理工艺通过生物降解等作用可以有效去除80%~100%的雄激素;氯消毒、臭氧等三级处理工艺对雄激素的去除效率相差较大,在-66.7%~70%范围内波动;同时也对去除雄激素的新型材料研究及未来研究方向进行了展望.

Research progress on the occurrence and behaviour of androgens in wastewater treatment plants

If steroid hormones produced from human and animal due to their metabolism and intake of pharmaceuticals are not completely removed in wastewater treatment plants (WWTPs), they are likely to contaminate the receiving water, thus having adverse impacts on the aquatic organisms. Among steroid hormones, the concentration of testosterone is 1~3orders of magnitude higher than the concentration of estradiol. This paper summarized the studies on the occurrence of androgens in WWTPs. It is shown that primary treatments in municipal WWTPs rarely remove androgens; secondary treatments can remove 80%~100% of androgens, and the Anaerobic-Anoxic-Oxic process is the most effective technology; and the removal rate during tertiary treatments range from -66.7% to 70%. In addition, the new materials development and further research were also involved.