摘要
通过改进人工快渗系统的滤料组成并进行了处理生活污水的中试。结果表明,在水力负荷1.5m/d和滤料中添加5%的大理石、15%的海绵铁条件下,该系统对废水COD、NH3-N、TP的去除率分别达到82.5%、96.1%和98.7%,出水浓度均达到了污水综合排放一级标准和中水回用标准。改进后的系统对磷的去除效果较传统快渗系统提高30%以上,磷的去除主要是海绵铁的吸附和化学固定作用,海绵铁静态吸附试验显示,其符合Langmuir吸附等温线模式。
The improvement on the fiher of constructed rapid infiltration system and administration of the pilot-scale study for treating domestic sewages was mainly concerned. The results show that on condition which hydraulic loading was 1.5 m/d and 5 % of the marble and 15 % of sponge iron added to the filter, this system reached 98.7 % to removal phosphorus of domestic sewages, while the COD and NH3-N removal rate by 82.5 % and 96.1%, all the effluent concentration meet the sewage discharge standard and recycled water standard. More than 30 % of the effective of removal phosphorus was improved by this system compared with the traditional rapid infiltration system. Sponge iron static adsorption experiments showed it fits the Langmuir adsorption isotherm model.
出处
《净水技术》
CAS
2009年第4期42-45,共4页
Water Purification Technology
关键词
人工快渗系统
生活污水
磷
吸附
constructed rapid infiltration domestic sewages phosphorus adsorption
