ABR处理农村生活污水的试验研究

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1、西南交通大学硕士学位论文ABR处理农村生活污水的试验研究姓名：陈俊杰申请学位级别：硕士专业：环境工程指导教师：付永胜;陈攀江20080601西南交通大学硕士研究生学位论文第lI页AbstractInrecentyeats，ruralnon-pointsourcepollutionisbecominganothermajorriverwaterpollutionaftertheeffectivetreatmentofindustrialpointSOllrcepollution．Asallimportantpartofruralnon-pointsourcepollution,ruraldo

2、mesticwastewaterhasnotbeeneffectivecontrolandmanagementwimitslarge,scattered．notmanageableandothercharacteristics．nleresearchbelongstothesubjectabouttheruraldomesticwastewatertreatmentofSichuanProvinceTechnology-Researchproject．Inordertoprovideeffectiveruraldomesticwastewatertreatmentmethodandadva

3、ncedtechnologywiththeactualsituationofruralareas．Bytheexperimentalresearch,discussingtheoperatingresultsforthefollowingdemonstrationprojects，andprovidingthebasicdata．Themainconclusionsoftheresearchareasfollows：(1)Thequantityofruraldomesticwastewaterislarge．It’Sabout70-110LperpersonperdayinSichuanr

4、uralareas，ithasunevenandinstantaneousemissioncharacteristics．Ruraldomesticwastewat’erislowconcentrationsewagetype，withit’SSSprobablyintherangeof100～500mg／L，CODerprobablyintherangeof50--300m班，NH3-Nintherangeof5～38mg／L，TPintherangeofO．5—12rag／L；(2)ABRreactorhasstronganti-hydraulicloadingcapacity：int

5、heprocessofreducingHRTfrom24hto5h,theremovalrateofCODerhaslittlechange．It’11recovertheoriginallevelafterchangingHRT2—虬theremovalrateofCODerremainsabout75％；(3)ABRreactorhasstronganti-concentrationsloadingcapacity：afterrunning5h惭mthe36％—280％concentrationloadingimpacts，theeffluentofCODcrregains65～120

6、mg／L，theremovalrateofCODermaintains650／旷75％，itachievesthe900dremovaleffectofanaerobicreactor；(4)Becausetheroleofammoniabacteria,NH3concentrationincreasessteadily,buttheammoniaisnotsignificant,theaveragerateofammoniaisabout25．45％；(5)Inlow-temperatureconditions，Becauseofthehi曲concentrationofbiologic

7、alactivity,SOit’11compensateorbuffertheadverseeffectsoftemperature．Withthetemperaturedecreases，theremovalratesofCODerisdropped，butnotsignificant,onlyfrom75．19％downto67．2％duringtemperaturedecreasesfrom30℃t010℃．(6)