环境工程学报2017，Vol.11Issue(12)：6290-6294,5.DOI:10.12030/j.cjee.201705048
钾明矾缓释除磷剂处理分散式农村生活污水
Potassium alum sustained-release tablets for treatment of decentralized rural domestic sewage
王磊 1黄勇 2郭召海2
作者信息
- 1. 北京首创股份有限公司,北京100028
- 2. 苏州科技大学环境科学与工程学院,苏州215011
- 折叠
摘要
Abstract
In this study,sustained-release dephosphorization tablets were fabricated to control the water quality of effluent from secondary biological treatment.In which potassium alum was used as main flocculant and hydroxypropyl methyl cellulose ether as binder.The effectiveness of phosphorus removal was examined under dif ferent conditions.Experimental results indicated that the sustained-release time was significantly extended with the addition of hydroxypropyl methyl cellulose ether.When the content of hydroxypropyl methyl cellulose ether in the tablets was 10％,the removal rate of total phosphorus was as high as 89％.However,excess hydroxypropyl methyl cellulose ether (20％) added was found to decrease the removal rate of total phosphorus (42％).The results of site tests showed that total phosphorous concentration in influent significantly influenced the total phosphorus concentration in effluent.The removal rate of total phosphorous was stable at around 57％ (within the range of 52％ to 69％).The good water quality in terms of phosphorous could be obtained when the initial concentration of total phosphorus was stabilized at 2 mg · L-1.These results indicate that the sustained-release dephosphorization tablets are suitable to be used in treatment of scattered domestic sewage.The effluent is better.关键词
缓释除磷剂/钾明矾/分散式生活污水Key words
sustained-release dephosphorization tablet/potassium alum/decentralized domestic sewage分类
资源环境引用本文复制引用
王磊,黄勇,郭召海..钾明矾缓释除磷剂处理分散式农村生活污水[J].环境工程学报,2017,11(12):6290-6294,5.
