TreatmentofcassavastarchwastewaterbyUASB-CASS-coagulationHanBiao,ZhangPing,ZhangWeiwei,LiCheng,HuYalan,WangQiming,YanHengyu(GuangxiAcademyofEnvironmentalProtection,Nanning530022,China)UASB—CASS—,,,,,,(,530022)[]UASB—CASS—。,COD、BOD5、SS13078、7297、3386mg/L,COD、BOD5、SS96、18、42mg/L,99%,《》(GB8978—1996)。,。[];UASB;CASS[]X703.1[]B[]1005-829X(2010)08-0075-03Abstract:TheUASB-CASS-coagulationprocesshasbeenusedfortreatingcassavastarchwastewater.Itsapplica-tionresultsshowthatwhentheCOD,BOD5andSSofinfluentare13078,7297,3386mg/Lrespectively,andthoseofeffluentare96,18,42mg/L.Theremovalratesofthethreeareallabove99%.TheeffluentwaterqualityisstableandmeettheFirstGradeofIntegratedWastewaterDischargeStandaard(GB8978—1996).Atthesametime,themarshgasproducedduringthewastewatertreatmentcanbeusedasassistantcombustion,makinggoodenvironmen-talandeconomicbenefits.Keywords:cassavastarchwastewater;upflowanaerobicsludgebed;cyclicactivatedsludgesystem,1.2t。,COD11000~16000mg/L,,1t10~20m3,,。。,COD,。,—,。,UASB—CASS—,。1,。,,。1。1,。2000m3/d,2000m3/d。《》(GB8978—1996)。2,BOD5/COD0.5,,—。UASB,CASS。,—,。UASB—CASS—,1。1/(m3·d-1)COD/(mg·L-1)BOD5/(mg·L-1)SS/(mg·L-1)pHBOD5/COD200011000~160007000~90003000~40003.5~4.50.56~0.64[](0992008-8)30820108IndustrialWaterTreatmentVol.30No.8Aug.,201075——2010-08,30(8)1,,,,pH6~7,。,35℃,UASB,UASB,、。UASBCASS。CASS,,。、、UASB、、CASS、、,,。。3(1)。,。1,,500mm,10mm,。1,,4.0m×0.5m×1.5m。。(2)。,,,。4,,5.0m×5.0m×4.0m。4.3h,3.6m,360m3。(3)。,。1,,6.0m×6.0m×4.0m,1.5h,3.5m,126m3。2,110m3/h,10m,7.5kW。(4)。,,35℃,。1,,D4m×7m,88m3,1h。(5)UASB。,5kg/(m3·d),85%,。CH470%~75%。、、,。UASB1,,D21m×20m,6058m3,5kg/(m3·d),3d。(6)。UASB,。1,,5.5m×5.0m×4.5m,1h,4.0m,110m3。2,110m3/h,10m,7.5kW。(7)CASS。CASS,、〔1〕。,,。PLC,,CASS。CASS2,,42.0m×8.5m×4.5m,0.15kg/(kg·d),3.5g/L,1kgBOD51.3~2.0kgO2,20h,2000m3。CASS8,103m3/h,7.5kW。,30m3/h,2.2kW,2,1。(8)。CASS,,1。76——2010-08,30(8)5400,66670m2,2000m3/d,COD5341t/a。、。:150kW,125kW,0.75/m3;:2,1500,0.05/m3;0.59/m3;1.39/m3。8174m3/d,,5t/d。6(1)UASB—CASS—:UASB,、COD、、、、、,;,,,,,;,。(2)UASB—CASS—,COD、BOD5SS99%,《》(GB8978—1996),。[][1],.UASB、SR、CASS[J].,2000,19():180-181.[](1968—),1992,,。:13878135018,E-mail:gxhanbiao@163.com。[]2010-03-22()1,,23.0m×4.5m×4.5m,4h,4.0m,400m3。2,11,110m3/h,7.5kW。(9)。,UASB+CASS,,。,。PAC,PAM。1,,23.0m×4.5m×4.5m,4h,4.0m,400m3。(10)。、、,,,。1,,4.5m×4.5m×5.5m,24h,80m3。(11)。、,,。、,96%80%,1/10~1/5,。。2,PACPAM。。(12)。,1,50m2,、、,。4200811,3,,20092,2。2UASB/%CASS/%/(mg·L-1)/(mg·L-1)/(mg·L-1)/(mg·L-1)COD13078175086.6142015089.49636.0BOD5729782188.77122596.51828.0SS338680576.277013282.94268.2()/(mg·L-1)/%:。,:UASB—CASS—77——