给水排水
給水排水
급수배수
2014年
z1期
75-78,79
,共5页
戴晓虎%赵玉欣%沙超%戴翎翎%董滨
戴曉虎%趙玉訢%沙超%戴翎翎%董濱
대효호%조옥흔%사초%대령령%동빈
污水处理厂%污泥含砂量%粒径分析
汙水處理廠%汙泥含砂量%粒徑分析
오수처리엄%오니함사량%립경분석
Wastewater treatment plant%Sludge sand content%Particle size distribution
对我国南方某市7座污水处理厂脱水污泥固体组成进行调研，并从污水处理厂进水水质、砂的粒度分布、沉砂池效率及二级处理有机负荷角度进行污泥泥质成因分析。调研结果表明，该市污水处理厂污泥有机质含量整体较低，砂含量偏高，并随季节有一定规律变化。污水处理厂进水含砂量高、砂的粒度小，沉砂池效率低，二级处理污泥有机负荷低是污泥有机质含量低、含砂量高的主要原因。
對我國南方某市7座汙水處理廠脫水汙泥固體組成進行調研，併從汙水處理廠進水水質、砂的粒度分佈、沉砂池效率及二級處理有機負荷角度進行汙泥泥質成因分析。調研結果錶明，該市汙水處理廠汙泥有機質含量整體較低，砂含量偏高，併隨季節有一定規律變化。汙水處理廠進水含砂量高、砂的粒度小，沉砂池效率低，二級處理汙泥有機負荷低是汙泥有機質含量低、含砂量高的主要原因。
대아국남방모시7좌오수처리엄탈수오니고체조성진행조연，병종오수처리엄진수수질、사적립도분포、침사지효솔급이급처리유궤부하각도진행오니니질성인분석。조연결과표명，해시오수처리엄오니유궤질함량정체교저，사함량편고，병수계절유일정규률변화。오수처리엄진수함사량고、사적립도소，침사지효솔저，이급처리오니유궤부하저시오니유궤질함량저、함사량고적주요원인。
In order to acquaint with the status sludge sand content of wastewater treatment plants (WWTPs) in China ,an investigation was conducted by analyzing the total solid (TS) com-position of dewatered sewage sludge in seven selected wastewater treatment plants in a southern Chinese city .The cause of formation was analyzed in the regards of influent water quality ,particle size distribution of sand ,efficiency of grit chamber and organic loading rates (OLRs) of secondary treatment .Results indicate that the sludge of WWTPs has low organic matter content ,high sand content and changes with the seasons .The high sand content and small particle size of in the influ-ent ,the poor efficiency of grit chamber ,the low OLRs might be the reasons.
