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1、化工進(jìn)展·2768·CHEMICALINDUSTRYANDENGINEERINGPROGRESS2013年第32卷第11期SBR共代謝工藝深度處理石化廢水郭靜波,陳微,王亮,馬放(東北電力大學(xué)建筑工程學(xué)院,吉林吉林132012;中國(guó)石油吉林石化公司研究院,吉林吉林132021哈爾濱工業(yè)大學(xué)城市水資源與水環(huán)境國(guó)家重點(diǎn)實(shí)驗(yàn)室,黑龍江哈爾濱150090)摘要:以實(shí)現(xiàn)石化廢水深度處理為目的,考察采用序批式活性污泥工藝(sequencingbatchreactor,SBR)生物共代謝深度處理石化廢水效果的營(yíng)養(yǎng)及工藝運(yùn)行條件。結(jié)果表明:最佳共代謝基質(zhì)為淀粉,當(dāng)其投加量為3Omg/L
2、、搖床轉(zhuǎn)速為120r/min、溫度為25℃、MLSS為2320mg/L時(shí),經(jīng)12h處理后的二級(jí)出水COD下降了79.58%,臭、氨氮、BOD5等指標(biāo)也有所改善。SBR的最佳工藝條件為運(yùn)行周期6h、曝氣強(qiáng)度30Lm、淀粉投加量30mg/L、缺氧/好氧運(yùn)行時(shí)間比例1/2。此外,生活污水可替代淀粉作為共代謝基質(zhì),剩余污泥的持續(xù)添加不會(huì)影響污染物的降解效果。因此,SBR生物共代謝工藝可實(shí)現(xiàn)石化廢水的深度處理、生活污水的同步處理及剩余污泥的減量。關(guān)鍵詞:石化廢水;深度處理;共代謝;序批式活性污泥工藝中圖分類號(hào):X703.1文獻(xiàn)標(biāo)志碼:A文章編號(hào):1000—6613(2013)l1
3、—2768—06DoI:10.3969~.issn.1000—6613.2013.11.041SBRCO-metabolismprocessfortheadvancedtreatmentofpetrochemicalwastewaterGUOJingbo,CHENWei,WANGLiang2MAFang3,(SchoolofCivilandArchitectureEngineering,NortheastDianliUniversity,Jilin132012,Jilin,ChinmResearchInstituteofJilinPetrochemicalCo.Ltd,
4、,Pe~oChina,Jilin132021,Jilin,China:StateKeyLaboratoryofUrbanWaterResourceandEnvironment,HarbinInstituteofTechnology,Harbin150090,Heilongjiang,China)Abstract:ThenutritionalandoperationalconditionsofaSBRCO—metabolismprocesswereinvestigatedinordertorealizetheadvancedtreatmentofthesecondarye
5、muentofapetrochemicalwastewatertreatmentplant.TheresultsshowedthatthebestCO.metabolismsubstratewasstarch.AfterCO.metabolicdegradationof12h,CODconcentrationofthesecondaryeffluentwasreducedby79.58%andodor,ammonianitrogen,BODandotherwaterqualityindicatorswerealsoimprovedunderthefollowingcon
6、ditions:dosage,3Omg/L;shakingspeed,120r/min;temperature,25℃;MLSS,2320mg/L.TheoptimumoperatingconditionsfortheSBRCO-metabolicprocessweredeterminedtobeoperationperiodof6h,aerationintensityof30L/h,starchdosageof30mg/L,anoxic/aerobictimeratioof1/2.DomesticsewagecouldreplacestarchasCO—metabol
7、ismsubstrate.Theconstantadditionofexcesssludgedidn’taffectthedegradationofthepollutantsandtheexcesssludgeamountwasreduced.Therefore,SBRCO—metabolismprocesscouldbefeasiblefortheadvancedtreatmentofpetrochemicalwastewater,domesticwastewatertreatmentandexcesssludgereduction.K