城市污水处理厂磷的形态变化规律研究

50Vol37No22011刘志刚1虞静静1李轶1颜孜佳2许斌2(1,210098;2,215300)对以A-A2/O微絮凝砂滤为处理工艺的某污水处理厂全流程磷的形态变化进行现场研究结果表明,各处理构筑物中的磷主要以正磷酸盐形式存在,且正磷酸盐浓度在整个处理流程中的变化规律为:从沉砂池到前置反硝化池减小,从前置反硝化池到厌氧池增大,从厌氧池到好氧池减小,在厌氧池达到最大,在砂滤池出水达到最小而正磷酸盐占总磷比例在二沉池出水处最大,由此判定二沉池出水处为最佳投药点聚磷酸盐和有机磷浓度占总磷的比例沿处理流程呈先减小后增大的趋势污水处理厂化学除磷反硝化除磷正磷酸盐最佳投药点[1,2],,[3],(GB189182002)A(TP0.5mg/L)[4],,,11.1,A-A2/O,10m3/d(GB189182002)A1190%,10%,,,100%,80%(2008ZX07313-002)1.2,,[5],[6],,,,,22.12~82,,,;2010315~525,,,,2.5~4mg/L,1.5~2.5mg/L,0.5~0.8mg/L[7]Vol37No22011512,10%,3:,,1~1.5mg/L,0.25~0.5mg/L0~0.5mg/L,,,,34~6A2/O,:3.5~5.5mg/L,2~3mg/L0.6~1mg/L;2.5~4.5mg/L,1.5~2.5mg/L0.5~0.7mg/L;0.5~1mg/L,0~0.5mg/L0~0.1mg/L;0~0.5mg/L,0~0.5mg/L0~0.2mg/L,,,,,,4567,,:0.4~0.6mg/L,0~0.1mg/L0~52Vol37No220110.2mg/L,,,,,,,78,,,(GB189182002A),,(PAC),,8,,,,,,0.25~0.4mg/L,GB189182002A,,0.1~0.2mg/L,0~0.1mg/L2.29,:,,60%~80%60%,[7];72%,89,,75%,,,,,,,,,,,,;,,,,,,,Vol37No2201153,,,80%;,,PAC,,,,1010,10%~30%5%~25%,,,,,,3(1),,,(2),,;,(3),PAC参考文献1.(CEPT).,2000,16(1):26~292,..,2008,12:52~533,,,.PACPFS.,2009,(4):115~1164,,..(),2002,31(1):78~825..4.:,2002.250~2846..,2005,(4):281~2847.:[].:,2008&:2100981:13776417768E-mail:[e-mail]:2010-09-10:2010-12-03杭州市闲林水库工程,,3,2013,15d10d;75%97%;520;16.89km2,2000m32,38m,230m;5m,320m;15km11km,3.5m;26m3/s,4000kW;5m3/s,4000kW,,20(通讯员朱彤)