赤泥处理含磷废水的研究  

Study on Treatment of Phosphorus Wastewater by Red Mud

作　　者：姚珺[1] 

机构地区：[1]洛阳理工学院环境与化学工程系,河南洛阳471023

出　　处：《化学与生物工程》2008年第11期61-63,共3页Chemistry & Bioengineering

基　　金：洛阳市科技基金资助项目(030-532)

摘　　要：研究了赤泥投加量、反应时间、pH值和搅拌速度对含磷废水去除效果的影响,探讨了赤泥煅烧活化前后对废水中磷的去除作用。结果表明,700℃下高温煅烧2 h可以将赤泥对磷的去除率提高34.1%。当反应时间为120 min、pH=7、搅拌转速为200 r.min-1、进水磷浓度为10 mg.L-1时,按每毫克磷投加4.07 g煅烧赤泥,磷去除率可达到89.4%。对赤泥吸附废水中磷实验数据进行回归分析,符合Freundlich吸附等温式。In this paper, the effect of red mud amount, reaction time, pH value, stirring speed on the removal rate of phosphorus was studied. The removal of P from phosphorus wastewater with calcinated or uncalcinated red mud were investigated. The results showed that,by calcination at 700℃ for 2 h, the activated red mud enhanced P removal rate 34.1%. Under the condition of reaction time 120 min,pH value 7,stirring speed 200 r · min^-1 , initial P concentration 10 mg · L^-1 and red mud dosage 4.07 g · （mg p）^-1 ,the removal rate could reach 89.4%. Freundlich isotherm wag suitable to the effective adsorption of P by red mud.

关 键 词：赤泥 活化 含磷废水 

分 类 号：X703.1[环境科学与工程—环境工程]