改性聚合硫酸铁去除微污染水中Pb^(2+)的影响因素  

Removal of heavy metal lead(Ⅱ) from micro-polluted waters by modified polyferric sulfate

作　　者：李明玉[1] 陈伟玲[1] 任刚[1] 林达红[1] 袁永钦 

机构地区：[1]暨南大学环境工程系,广东广州510630 [2]广州市自来水公司,广东广州510160

出　　处：《中国环境科学》2010年第1期42-45,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);广东省科技计划项目(2007A04010003)

摘　　要：以改性聚合硫酸铁(MPFS)为混凝剂,对微污染水源水中微量Pb2+的去除进行了研究.考察了水的pH值、MPFS投加量、Pb2+初始浓度和源水浊度等因素对Pb2+去除的影响.结果表明,在pH>6的条件下,当源水中Pb2+浓度为0.1mg/L时,投加3.00mg/L的MPFS(以Fe计),可使水中Pb2+的去除率达到90%以上,满足生活饮用水水质指标;当水中Pb2+初始浓度较高时,适当增加MPFS投加量,即可使Pb2+得到有效去除.The removal of lead from micro-polluted waters by modified polyferric sulfate（MPFS） was studied.Effects of the pH,the dosage of MPFS,the concentration of lead ion and the turbidity of raw water on the lead removal were investigated.Under the condition of pH〉6,the removal efficiency of lead was more than 90% when dosage of MPFS was 3.00mg/L and lead concentration 0.1mg/L in raw water.When the concentration of lead was higher than 0.1mg/L in raw water,lead could also be removed under the condition of increasing the dosage of MPFS.

关 键 词：微污染水 PB2+ 混凝 

分 类 号：X703.1[环境科学与工程—环境工程] TU991.2[建筑科学—市政工程]