摘要
以聚合硫酸铁和聚合氯化铝为混凝剂,采用强化混凝的处理方法,对微污染饮用水原水中微量砷的去除进行了研究.考察了pH值、氧化剂用量、混凝剂投加量、砷初始浓度和原水浊度等因素对砷去除的影响.结果表明,聚合硫酸铁除砷效果好于聚合氯化铝;在pH值为6～8,微污染原水砷浓度为0.1mg/L,聚合硫酸铁投加量为0.078mmol/L时,可使滤后水中砷浓度低于0.01mg/L.
The removal of arsenic in micro-polluted water by enhanced coagulation was studied with poly ferric sulfate（PFS） and poly aluminum chloride（PAC）.The effects of pH, dosage of coagulant and oxidant, initial concentration of arsenic and initial turbidity on the removal efficiency of arsenic were discussed.The removal rate of arsenic treated with PFS was higher than that of with PAC.Under the condition of pH6～8 and PFS 0.078mmol/L, the residual concentration of arsenic in post-treated water was lower than 0.01 mg/L for raw water with initial concentration of arsenic 0.1 mg/L.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2010年第3期345-348,共4页
China Environmental Science
基金
广东省科技计划重大专项(2006A36802001)
广东省"十一五"重大科技专项(2007A032400001
2008A030202010)
关键词
强化混凝
微污染水
砷
饮用水
聚合硫酸铁
enhanced coagulation
micro-polluted water
arsenic
drinking water
poly ferric sulfate
