MBBR-超滤-催化氧化组合工艺处理工业废水的中试研究
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2020-04-05 17:53:10
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170广东化工www.gdchem.com2018年第6期第45卷总第368期MBBR-超滤.催化氧化组合工艺处理工业废水的中试研究陈金灿,周赞民(珠海市城市排水有限公司.广东珠海5i9000)f摘要1针对菜污水处理厂特殊的水质特点,同时为提标改造工艺方案的确定提供技术依据,开展了工艺流程为“MBBR+S—CMF(混凝沉淀+超滤l+臭氧催化氧化”的中试试验,以验证该工艺方案的可行性,同时着重研究了各个工艺单元对于降解CODcr的降解效率。结果表明:①系统稳定运行期间,出水各水质指标均能够稳定达标,对于CODcr、BOD5、NH3-N、TN、TP、SS的平均去除率分别达到79.2%、95.8%、91.9%、86.8%、94l3%、96.7%:②经过MBBR单元和混凝沉淀处理后,CODer平均值为38.4mg/L,可平均去除55.3mg/L。平均去除率为59.0%:⑨经过S-CMF单元处理后,CODer平均值为32_3mL,可平均去除6.12mg/L,平均去除率约为6.5%;④经过S-CMF单元处理后CODcr平均值为19.5mg/L,可平均去除l2.8mL,平均去除率约为13.7%,每天的出水水质均达到了排放标准;⑤各单元中.臭氧催化氧化对于LIV254的去除率最高,为4I.O%。研究结果表明,“MBBR+S—CMF(~凝沉淀+超滤)+臭氧催化氧化”工艺能够保证各出水水质稳定达标,为提标改造提供了重要参考。『关键词]_Tilk废水;MBBR:超滤;臭氧催化氧化;提标改造【中阁分类号1x[文献标识码】A【文章编号】1007—1865(2018)06.0170—03PilotStudyontheTreatmentofIndustrialWastewaterbyMBBR-ultrafiltrationCatalyticOxidationProcessChenJincan,ZhouZanmin(ZhuhaiUrbanDrainageLimitedCompany,Zhuhai519000,China)Abstraet:ACCOrdingtothecharacteristicsofwaterqualityinaspeciaIsewagetreatmentplant.andinordertoprovidetechnicalbasisforthetransformationofthesewageplant,thetestoftheprocessof”MBBR+S—CMF(coagulation+ultrafiltration1+ozonecatalyticoxidation”wascarriedouttoverithefeasibilityofthisprocess、withthefoCBSoneachprocessunitforthedegradationefficiencyofCODor.Theresultsshowedthat:duringthestableoperationofthesystem.al1thewaterqualityindexesoftheefnuentcanreachthestandard:theaverageremovaJrateofCODcBOD5,NH3一N,TN,TPandSSwererespectively79.2%.95.8%,9I.9%,868%,94.3%.967%.TheMBBRunitandaftercoagulationtreatment:theaveragevalueofCODcrwas38.4mg/L:theaverageamountofremovalwas55.3mg/L:theaverageremovaIratewas59%.TheunitafterS—CMFtreatment:theaveragevalue0fCODcrwas32.3mg/L;theaverageamountofremovalwas6.】2mL;theaverageremovalratewasabout6.5%.TheS—CMFunittreatment:theaveragevaluewasI9.5mL:theaverageamountofremova1wasl2.8mg/L:theaverageremoralratewasabout13.7%.Theefnuentwaterqualityeverydayreachedthedischargestandards.andthecatalyticozonationforthehighestremovalrateofUV254was4l%Theresearchresultsshowedthattechnologicalprocesscanguaranteethestabilit
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