几种常见吸附剂对废水中低浓度磷的吸附  

Study on Adsorption Efficiency of Several Kinds of Common Adsorbents for Low Phosphorus Wastewater

作　　者：唐朝春[1] 陈惠民[1] 张琪[1] 叶鑫[1] 刘名[1] 

机构地区：[1]华东交通大学土木建筑学院,南昌330013

出　　处：《湖北农业科学》2016年第9期2227-2229,2237,共4页Hubei Agricultural Sciences

基　　金：江西省研究生创新专项资金项目(YC2014-S251);江西省自然科学基金资助项目(20132BAB203033);江西省科技厅支撑计划项目(2009AE01601)

摘　　要：为了筛选出对磷吸附速率快、吸附量大且投加量小的吸附剂,以期应用于工程实践中,利用8种常见吸附剂对含磷量较低的二级生物处理后的出水进行吸附除磷。结果表明,氯化铝、热力贴与阴离子树脂对磷的吸附效果较好,其余5种吸附剂基本无吸附效果。其中,氧化铝和热力贴在30 min后达到吸附平衡,吸附速率较快,而阴离子树脂在60 min时还未达到吸附平衡,吸附速率较慢;氧化铝和阴离子树脂吸附量大,而热力贴吸附量较小;氧化铝、阴离子树脂和热力贴在投加量分别为0.2、1.0、2.0 g/L时,经30min吸附,可使磷浓度从初始的0.900 mg/L降到0.5 mg/L以下。综合来看,对低浓度含磷废水的除磷效果为氧化铝>阴离子树脂>热力贴。In order to select adsorbents that have many advantages on phosphorus removal such as high adsorption rate, high adsorption capacity and little dosage to be applied to engineering practice,the experiment of phosphorus removal of secondary biological treatment effluent with low phosphorus content was carried out using 8 kinds of common adsorbents. The results showed that the aluminum chloride, thermal paste and anion resin had good effect on phosphorus removal; the rest of the 5kinds of adsorbents had no adsorption effect. Among them, alumina and thermal paste reached adsorption equilibrium after 30 min adsorption,and had faster adsorption rate, while the anion resin still didn＇t reached balanced after 60 min adsorption,and its adsorption rate was relatively slow. Alumina and anion resin had higher adsorption than thermal paste. After 30 min adsorption,phosphorus concentration could decreased from initial 0.900 mg / L down to below 0.5 mg / L when the dosage of alumina,anion resin and thermal paste was 0.2,1.0 and 2.0 g/L, respectively. Overall, the phosphorus removal effect on wastewater with low phosphorus was aluminaanion exchange resinthermal paste.

关 键 词：吸附剂 除磷效果 废水 磷酸盐 

分 类 号：X703[环境科学与工程—环境工程]