改良A2O工艺强化除磷控制措施研究与应用杨丹

38　　　　Vol.34　No.10　2008改良A2/O工艺强化除磷控制措施研究与应用杨　丹　程建新　曹文忠(,　518031)　　　结合南方某污水处理厂实际运行情况,对改良A2/O工艺在低碳高磷进水条件下的除磷效果进行深入研究。研究表明,通过对工艺参数的优化控制并辅以化学除磷措施,进水总磷在3～8mg/L时,出水均可达《城镇污水处理厂污染物排放标准》(GB18918—2002)一级B标准。　改良A2/O工艺　生物除磷　化学除磷StudyandapplicationforcontrolmeasuresforimprovedA2/OonenhanceddephosphorizationtechniqueYangDan,ChengJianxin,CaoWenzhong(ShenzhenDatongWaterCo.,Ltd.,Shenzhen518031,China)Abstract:Basedontheoperationofasouthernwastewatertreatmentplant,astudyontheeffectivenessofdephosphorizationwasprocessedusingimprovedA2/Otechniquewithinfluentcontaininglow-carbonandhigh-phosphorus.Theresultsshowedthat,byoptimizingthecontrolparameterspluschemicaldephosphorization,thetreatedwatercouldreachthefirst(B)standardofDischargestandardofpollutantsformunicipalwastewatertreatmentplant(GB18918—2002)undercircumstancethatconcentrationoftotalphosphorusofinfluentis3～8mg/L.Keywords:ImprovedA2/Otechnique;Biologicalphosphateremoval;Chemicalphosphoteremoval　　A2/OA2/O,。、,,,。,。1　4m3/d,A2/O,《》(GB18918—2002)B(,TN)。1。1　,、,:①、,,60%;②,,2;③,、,,BOD/COD0.55。1。DOI:10.13789/j.cnki.wwe1964.2008.10.003　Vol.34　No.10　200839　　　1　BOD5/mg/LCODCr/mg/LSS/mg/LNH3—N/mg/LTN/mg/LTP/mg/L15027318927.932.58.19717513015.821.64.912823816623.327.07.0130290180254.5≤20≤60≤20≤8≤1　　,:(1),。C/P19,15。(2)DO,DO(DO4mg/L)。(ORP-100mV),。(3)TP,TP≤1mg/L,85%。(4),、,。,,,。2　2.1　,,、。0.6h,,。,,A2/O,,A2/OA/O,。23。2、3:①,。②68.5%,72.1%,。2007A/O,77.3%,。2　CODCr/mg/LBOD5/mg/LTP/mg/LTN/mg/LNH3—N/mg/LNO-3—N/mg/LNO-2—N/mg/LSS/mg/L15717.59473.481.0129.5911.3919.400.310.6010.200.0100.0301091212720.36399.001.2628.0012.1421.530.461.1811.470.0700.0408797413.53762.381.2914.448.0510.100.357.797.800.1100.015113915514.19254.881.4222.899.3618.300.151.739.250.1200.0151221123617.57762.601.1115.828.9111.750.700.298.010.0700.011911017313.35968.003.4826.3612.1222.900.190.2110.770.0200.070109123　CODCr/mg/LBOD5/mg/LTP/mg/LTN/mg/LNH3—N/mg/LNO-3—N/mg/LNO-2—N/mg/LSS/mg/L17012.18043.000.5623.7513.508.880.111.2610.360.1500.01017597616.26262.150.6915.105.858.551.282.654.500.1000.02095910812.04733.151.0819.879.4216.800.701.189.160.1100.010102101045.04354.080.8316.346.8411.800.110.496.940.1600.00597913314.15533.181.0024.2312.0711.900.960.8410.480.0600.010861116717.44875.801.8030.2511.1015.530.040.9111.000.0180.0301031140　　　　Vol.34　No.10　2008　　,,4,。2.2　,、、、,。2.2.1　(F/M)(SRT)A/OF/MSRT,SRT7～10d,,SRT6d,80%[1]。:F/M。F/M0.113kgBOD5/(kgMLSS·d),,,MLVSS/MLSS0.65;,0.35。MLSS,MLVSS。F/M0.151kgBOD5/(kgMLVSS·d)。,,,SRT6～10d。2.2.2　(R)R100%,7000mg/L。,R50%～100%。,:(1),,,,SVI50～70mL/g,9000mg/L,50%。,,,。(2),,,SVI100mL/g,,7000mg/L,80%。2.2.3　(DO)2～3mg/L,。,,,,。,,、、,,1.2～1.5mg/L,,,,,、。,15℃,,,,1.5～2mg/L。,,3～4mg/L,,。4。4　0.113kgBOD5/(kgMLSS·d)　0.151kgBOD5/(kgMLVSS·d)8～10d6～10d　　0.6h,1.2h,1.8h,5.6h;HRT9.2h　0.6h,3h,,5.6h;HRT9.2h100%50%～80%200%DOORP　、DO0.5mg/L;DO0.2mg/L,ORP-250mV;DO2～3mg/L　DO0.5mg/L;DO0.2mg/L,ORP-250mV;DO1.2～1.5mg/L,1.5～2mg/L,　MLSS3000mg/L,MLVSS2250mg/L　MLSS2800～4000mg/L,MLVSS2250mg/LMLVSS/MLSS0.750.75　Vol.34　No.10　200841　　　2.3　,、,,(≤1mg/L)。,8mg/L,1mg/L,,,。。2.3.1　7(、、、、、、)。4,、,。,。,,,,。2.3.2　、():①,,;②(、);③,,,[2]。,(5),。,,。,,。,PVC,,、、,,。,50mg/L,1mg/L。3　(1)A2/OA/O,,,。(2),、。F/M0.151kgBOD5/(kgMLVSS·d)、R50%～80%、DO1.2～2mg/L、SRT6～10d,,。(3),、、。、,,50mg/L。参考文献1　..:,20022　,,..,2004,(4):35～38　　:[phone]E-mail:[e-mail]:2008-04-23:2008-07-19河北省年底全面开征排污费　　《》,,、,90%80%。0.8/m3,3/(·),2/(·)。(通讯员　赵福欣)