改性活性炭对污水厂尾水深度处理的实验研究  

Study on the Advanced Treatment of Wastewater Plant Tailwater by Modified Activated Carbon

作　　者：殷玉蓉[1] 凌琪[1] 伍昌年[1] 

机构地区：[1]安徽建筑工业学院环境工程学院,安徽合肥230022

出　　处：《中国西部科技》2013年第3期19-21,共3页Science and Technology of West China

基　　金：安徽高校省级自然科学研究重点项目(KJ2010A067);国家水体污染控制与治理科技重大专项(2008ZX07316-002)

摘　　要：针对城市污水处理厂的尾水,研究改性活性炭吸附对其中污染物的去除效果。用硝酸对粉末活性炭进行改性处理,以聚合氯化铝为混凝剂,对原水进行预处理。对活性炭改性前后进行表征,研究其对水体中污染物的去除效果,讨论改性活性炭投加量、pH值、吸附时间等因素对改性活性炭吸附效果的影响。结果表明:活性炭改性后各水质指标的去除率均有显著提高。改性活性炭的最佳投加量、pH、吸附时间分别为1.0g/L、7、300min。水质指标TCOD、DCOD、NH3-N、TP的去除率分别可达80.7%、71.7%、66.4%、90.3%。The pollutants removal efficiency of the tailwater of the city sewage treatment plant by modified activated carbon was studied in this paper..Modified by nitric acid,the powdered activated carbon（PAC）was used to pretreatment the raw water with polymerization aluminum chloride as the coagulant..We studied the removal of pollutants in water, and discussed the dosage,pH,adsorption time and adsorption effect.The results showed that the removal efficiency of the water quality indicators has been improved significantly.The best dosage,pH, adsorption time were 1.0g/L,7,and 300min,respectively.Water quality indicators such as TCOD,DCOD,NH3-N,TP were removed up to 80.7%,71.7%,66.4%,and 90.3%,respectively.

关 键 词：改性活性炭 硝酸 尾水 混凝剂 

分 类 号：X703[环境科学与工程—环境工程]