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66 Vol.36 No.2 2010AF—人工湿地—生态塘工艺处理养殖废水1,2 1,2 1,2(1, 400045;2, 400045) 采用厌氧生物滤池(AF)—人工湿地—生态塘工艺处理养殖废水。结果表明:AF设置在人工湿地的前端能极大地降低SS的含量,有效预防人工湿地的堵塞。人工湿地采用跌水曝气方式,节约了能源及建设维护费用;采用波式潜流的流态,为氮的去除创造了较好的条件。生态塘设置在波式潜流人工湿地后端,它能强化对氮、磷的处理;工艺对CODCr的去除率约为80.30%,SS去除率约为94.69%,NH3—N去除率约为73.39%,TP的去除率约为86.78%。 厌氧生物滤池(AF) 跌水曝气 波式潜流人工湿地(DWWSCW) 生态塘(EP)StudyoncultivationwastewatertreatmentbyAF-DWWSCW-EPunionprocessCaiMingkai1,2,ZhangZhi1,2,JiaoShijun1,2(1.KeyLaboratoryoftheThreeGorgesReservoirRegionEco-Environment,MinistryofEducation,ChongqingUniversity,Chongqing400045,China;2.FacultyofUrbanConstructionandEnvironmentalEngineering,ChongqingUniversity,Chongqing400045,China)Abstract:AF-DWWSCW-EPunionprocesswasemployedtotreatthecultivationwastewater.TheresultsindicatedthatanaerobicbiologicalfiltershouldbeputinthefrontofconstructedwetlandanditcouldreducetheSS,preventthecloginconstructedwetlandefficiently;constructedwetlandwithdroppingaerationcouldsaveenergyconsumptionandthecostofconstructionandmaintenance;waveandsubsurface-flowcreatedabetterconditionfornitrogenremoval;Eco-pondshouldbeputinthebackofdropwaterwavysubsurfaceconstructedwetland,whichwouldintensifytheremovalofnitrogenandphosphorus.AF-DWWSCW-EPunionisefficientinthepurificationofcultivationwastewater,theremovalrateofCODCr,SS,NH3—N,andTPisabout80.30%,94.69%,73.39%,and86.78%respectively.Keywords:Anaerobicbiologicalfilter(AF);Aerationbyhydraulicdrop;Dropwaterwavysubsurfaceconstructedwetland(DWWSCW);Eco-pond(EP) ,,,,,,,、[1,2]。,COD、65.2%、36.3%“”(2007BAB21B01)。35.3%[3,4]。,,[5],,。、。AF——,,,,,DOI:10.13789/j.cnki.wwe1964.2010.02.008 Vol.36 No.2 201067 DO,、、、、,。1 ,,1。,1。1 1 /m3/dCODCr/mg/LSS/mg/LNH3—N/mg/LTP/mg/L15~20256~300250~38024~337.8~9.61.1 ,1cm,,AF。1.2 、,2m×2m×1.5m。1.3 AFAF,2m×2m×3m。,4m3,1m,1m。1.4 2 AF,,7.2m×1.2m×0.6m,2.8m、2.2m、1.7m、1m。,,2。,,。3~5cm;、1~2cm;[6]。,[7]。1.5 COD,TNTP,,,、。2m×3m×0.45m。、,,、、。2 2.1 2.1.1 ,[8]。,,。,,,,,。2。2 DO/mg/LDO/mg/LDO/mg/LDO/mg/L5.715.615.424.203.502.472.952.411.900.571.821.630.200.430.130.730.180.390.140.470.050.070.050.360.050.260.130.240.050.050.050.09 ,、DO。DO,DO,,,,。,。68 Vol.36 No.2 20102.1.2 2,,DO,2mg/L。DO,(DO≤2mg/L),DO0.1mg/L。,——,——。。,。,,,,。[9],,,(COD、SS、NH3—N、TP)。,,—,。2.2 AFAF,,,CODCr,,[9],AF7h。AF3~6。3 AFCODCrAF,CODCr157.83mg/L,42.09%,SS149.83mg/L,45.44%。CODCrSS,,AF,,,,,,,,。NH3—NTP,-36.22%3.73%。NH3—N,NH3—NNH3—N。,。NH3—N,[10]。AF,, Vol.36 No.2 201069 Ca2+、Mg2+。2.3 22h。7~10。CODCr、SS、NH3—NTP55.20%、73.41%、65.42%58.60%。,,,。、,,。CODCrSS,。NH3—NTP65.42%58.60%。,NH3—N,,。,、,—,NH3—N,NH3—N。,,。、、。NH3—NA/O,。,。11 CODCr2.4 14h。CODCr、SS、NH3—NTP11~14,CODCr、SS、NH3—NTP53.5mg/L、17.67mg/L、7.32mg/L1.15mg/L,23.72%、55.67%、43.31%66.93%。,,CODCr。NH3—NTP,。70 Vol.36 No.2 2010,,,NH3—N,,N2N2O。。2.5 3。3 AFCODCr/mg/L149~17560~8140~60SS/mg/L147~159.739.0~44.715~20NH3—N/mg/L34~4211~157~7.6TP/mg/L7.6~9.43.1~40.9~1.93 (1)AF——,CODCr80.30%,SS94.69%,NH3—N73.39%,TP86.78%,《》(GB18918—2002)B。(2),,AF,AF,SS,。,。(3),2.8mDO0.01mg/L5.71mg/L;,,,/,、。(4),、,,COD、,。参考文献1 ,,,..,2009,11(2):4~82 .:[].:,20043 ..,2006,(4):17~214 .:[].:,20075 ,,,..,2009,35(5):19~236 ,,..,2008,(4):40~427 .:[].:,20038 ,.—().,2002,20(6):25~269 .DASB+W-SFCW:[].:,200510 ,,,..,2009,30(5):1142~1148 ☆:400405B11114:13594365874E-mail:jiaoshijun7@yahoo.com.cn:2009-09-28:2009-12-03
本文标题:AF人工湿地生态塘工艺处理养殖废水蔡明凯
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