混凝工艺对地表水中几种甾体雌激素的去除效果  

Efficiency of Removing Steroid Estrogens from Surface Water through Coagulation Process

作　　者：袁守军[1] 赵哲[1] 纪付元[1] 吴乔龙[1] 庆承松[2] 陈天虎[2] 

机构地区：[1]合肥工业大学土木与水利工程学院水处理与资源化研究所,安徽合肥230009 [2]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《环境科学与技术》2013年第8期148-151,共4页Environmental Science & Technology

基　　金：国家自然科学基金(51108149;41072036)";973"计划前期研究专项(2011CB411904);安徽省自然科学基金(11040606Q32);南京大学污染控制与资源化研究国家重点实验室开放课题(PCRRF11014)

摘　　要：采用正交实验与单因素分析相结合的方法考察混凝工艺去除地表水中甾体雌激素的可行性。试验结果表明，混凝工艺可有效去除地表水中的甾体雌激素。pH值、混凝剂投加量、水温等条件对天然雌激素17-β雌二醇、雌三醇、雌激素酮和合成雌激素17-α乙炔基雌二醇的去除效果均存在一定影响，弱酸性、低水温条件及适当增加混凝剂投加量均有利于雌激素的去除。当原水中雌激素初始浓度为0．05—1．0mg／L时，在混凝剂三氯化铁（Feel3）投加量为20mg／L左右，转速为500r／min（2min）＋100r／min（8min），雌酮、17-β雌二醇和17-α乙炔基雌二醇的去除率为65％～90％，雌三醇的去除率较低，约15％。Method of orthogonal test combined with single factor analysis was used to investigate the feasibility of removing steroid estrogens from surface water through coagulation process in water treatment. Factors such as pH, coagulant dosage and water temperature were the main ones that affected the removing efficiency of steroid estrogens including 17β-estradiol, estriol, estrone and synthetic hormone 17α-ethinylestradiol. It was also found that the water of low temperature, weak acidity was conducive to steroid estrogens removal, as was appropriately increased coagulant dosages. In the case of initial steroid estrogens concentration ranging from 0.05 to 1.0 mg/L in surface water, removal rates of estrone, 17β-estradiol and 17α- ethinylestradiol could reach the range from 65%-90% with the proper stirring intensity; however, a relatively low removal rate around 15% was obtained for estriol.

关 键 词：甾体雌激素 混凝 正交试验 地表水 

分 类 号：X52[环境科学与工程—环境工程]