CAJ | 학술논문

采用腐殖垃圾作为填料构筑生物滤池,进行处理生活污水的实验室小试研究,并在此基础上进行工程示范.结果表明,小试装置对COD、NH_4~+-N、TP和TN的平均去除率分别为85.7%、96.3%、63.5%和25.6%;出水回流可以提高对TN的去除率,回流比为10%和20%时,对TN的平均去除率分别提高至49.8%和63.8%.示范工程(100 m~3/d)位于江苏省扬中市,对COD、NH_4~+-N、TP和TN的平均去除率分别为55.0%、100%、84.5%和19.2%;除TN因碳源不足而反硝化效率较低,导致其出水浓度较高外,其他指标:COD<40 mg/L、TP<0.5 mg/L、NH_4~+-N基本检测不出来;工程使用的腐殖垃圾填料从浸出毒性到出水重金属浓度均具安全性,不影响出水的回用.示范工程的投资<3 000 元/m3,污水处理成本<0.1 元/m3.
채용부식랄급작위전료구축생물려지,진행처리생활오수적실험실소시연구,병재차기출상진행공정시범.결과표명,소시장치대COD、NH_4~+-N、TP화TN적평균거제솔분별위85.7%、96.3%、63.5%화25.6%;출수회류가이제고대TN적거제솔,회류비위10%화20%시,대TN적평균거제솔분별제고지49.8%화63.8%.시범공정(100 m~3/d)위우강소성양중시,대COD、NH_4~+-N、TP화TN적평균거제솔분별위55.0%、100%、84.5%화19.2%;제TN인탄원불족이반초화효솔교저,도치기출수농도교고외,기타지표:COD<40 mg/L、TP<0.5 mg/L、NH_4~+-N기본검측불출래;공정사용적부식랄급전료종침출독성도출수중금속농도균구안전성,불영향출수적회용.시범공정적투자<3 000 원/m3,오수처리성본<0.1 원/m3.
A laboratory scale biofilter filled with humus refuse was used to treat domestic sewage, and a demonstration project was conducted. In laboratory research, the average removal rates of COD, NH_4~+-N, TP and TN are 85.7%, 96.3%, 63.5% and 25.6% respectively. The effluent return can improve the removal rate of TN, and it can be increased to 49.8% and 63.8% when the return ratio is 10% and 20% respectively. In the demonstration project of 100 m~3/d in Yangzhong City, Jiangsu Province, the average removal rates of COD, NH_4~+-N, TP and TN are 55.0%, 100%, 84.5% and 19.2% respectively. Except high TN in the effluent due to insufficient carbon source in denitrification phase, the concentrations of COD and TP in the effluent are less than 40 mg/L and 0.5 mg/L respectively, and NH_4~+-N can not be detected. The filling materials used are proved to be safe and non-interfering with the reuse according to the leaching toxicity experiment and concentrations of heavy metals in the effluent. The construction cost for the demonstration project is less than 3 000 RMB/m~3, and the operating cost is less than 0.1 RMB/m~3.