中文摘要：

随着地下水砷污染问题的加重,砷污染已成为世界普遍关注的问题。为寻求经济合理的除砷技术,采用Fenton试剂氧化—絮凝法进行了水中As（Ⅲ））的去除试验。当废水初始As（Ⅲ）浓度为0.5 mg/L时,试验确定的最佳除砷条件为,调节废水初始pH=3.0、H2O2用量10 mg/L、Fe2＋与H2O2的摩尔比0.2、反应时间10 min,此时As（Ⅲ）去除率为95.17%。采用此最佳条件对赣州某实际废水进行除砷试验表明,As（Ⅲ））去除率可达94.71%,反应后水中As（Ⅲ））浓度为0.004 2 mg/L,低于《GB5749—2006生活饮用水卫生标准》中0.01 mg/L的标准。Fenton氧化—絮凝法除砷是利用Fenton反应产生的中间产物（包括H2O2、·OH、O2·、·HO2等）将As（Ⅲ）氧化与铁盐絮凝结合起来的一种方法。

英文摘要：

With the deterioration of groundwater arsenic pollution problem, arsenic pollution has become an issue of com- mon concern in the world. To seek for the economic and reasonable arsenic removal technology, Fenton reagent oxidation-floc- culation method is used for As （ Ⅲ ） removal test. Initial wastewater As （ Ⅲ ） concentration is 0. 5 mg/L,optimum arsenic re- moval condition ensured in experiment is regulating wastewater initial pH = 3.0, H2 O2 dosage of 10 mg/L, mole ratio of Fe2＋ to H2O2 is 0.2,reaction time is 10 min,As （Ⅲ ） removal rate was 95.17%. Adopt the best conditions for a actual arsenic bear- ing wastewater from Ganzhou removal test showed that the As （ Ⅲ ） ） removal rate can reach 94. 71% ,As（ Ⅲ） concentration in water is 0. 0042 rag/L, below the standard of 0.01 mg/L in drinking water health standards （GB5749-2006）. Fenton oxida- tion-flocculation arsenic removal is a method using intermediate （including H2O2, · OH, O2 · ,· HO2, etc. ） produced in Fenton reaction to floceulation combined As （Ⅲ ） and iron salt.