改性脱磷剂对高磷赤铁矿选矿废水的除磷性能  

Phosphate removal capability of modified dephosphorization agent from high-phosphate hematite mineral processing wastewater

作　　者：夏世斌[1] 张义[1] 鲁双月[1] 唐彬[1] 张一敏[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《中国有色金属学报》2010年第4期772-776,共5页The Chinese Journal of Nonferrous Metals

基　　金：国家"十一五"科技支撑计划重点资助项目(2007BAB15B00)

摘　　要：采用自行制备的改性脱磷剂对高磷赤铁矿选矿废水的除磷性能进行研究。结果表明:对于pH2.50～2.53、含磷98.85mg/L的实际选矿废水,改性脱磷剂的最佳投加量为22g/L,除磷效率为99.32%,出水pH值为3.50;改性脱磷剂的除磷效果较好并可保持出水的酸度较低,有利于高磷赤铁矿选矿酸性废水的在线处理和循环利用。The phosphate removal capability of modified dephosphorization agent used for acidic wastewater from high-phosphate hematite mineral processing was investigated.The results indicate that the modified dephosphorization agent can enhance phosphate removal effectively and keep low acidity of the effluent.For the actual mineral processing wastewater with pH value of 2.50-2.53,and phosphate concentration of 98.85 mg/L,the optimum dosage of modified dephosphorization agent is 22 g/L,and the corresponding phosphate removal is 99.32% and the effluent pH value is 3.50.The on-line treatment and circulation of the acidic wastewater can be achieved with the modified dephosphorization agent.

关 键 词：高磷赤铁矿 酸性废水 脱磷剂 改性 除磷 

分 类 号：X131.2[环境科学与工程—环境科学]