脱氮滤料处理低浓度氨氮废水的实验研究  

Study on Low Concentration of Ammonia Nitrogen Removal from Wastewater by the Filter Material

作　　者：李祖华 王红琴 董阳 

机构地区：[1]江苏华杉环保科技有限公司,江苏宜兴214200

出　　处：《稀土》2012年第6期65-69,共5页Chinese Rare Earths

摘　　要：以对氨氮有较强选择性和吸附性的脱氮滤料为吸附材料,通过静态试验和动态试验,系统的考察了pH、水力停留时间等因素对滤料吸附氨氮性能的影响,同时对脱氮滤料的再生条件及次数进行研究,结果表明,系统运行的最佳工艺条件为pH中性,水力停留时间1h,再生液浓度为8%,再生液pH为中性,再生停留时间为2h时的综合再生效果最佳,脱氮滤料具有较好的吸附性能以及重复利用性能。A filter material that has strong selective adsorption ability to ammonia nitrogen was studied in the paper. Through the static tests and dynamic tests, impacts of pH and hydraulic retention time on the performance of adsorption of NH4＋ - N, and the regeneration conditions and times of the filter material were investigated. The best technological conditions of the system were determined as neutral pH and hydraulic retention time 1 h. The best regeneration effect was obtained under the onditions of refresh liquid concentration 8% ,refresh liquid pH 7 and residence time 2 hours.

关 键 词：脱氮滤料 氨氮 再生 

分 类 号：X703.1[环境科学与工程—环境工程]