城市污水处理厂污泥制砖项目实践田强

1221．6100422．61040080%40%。20%。＜20%30%、。、、。X703．1C1000－4602201424－0108－03FabricationofBrickswithSludgefromMunicipalSewageTreatmentPlantsTIANQiang1ZHANGTong-hui2ZHANGHong-cheng21．ChengduDrainageCo．Ltd．Chengdu610042China2．ChuanshuShaleBrickfieldChengdu610400ChinaAbstractAftertheexcesssludgefrommunicipalsewagetreatmentplantswastreatedwithcellwallbreakinganddewateredinthehydraulicplateandframefilterpresssludgemoisturecontentcouldbereducedfrom80%tobelow40%．Onthisbasisthroughaerobicdryingsludgemoisturecontentcouldbedecreasedtobelow20%．Brickmoldingandmoisturecontentwouldnotbeaffectedbyaddingsludgewithmoisturecontent＜20%accordingtotheproportionof30%dryweightintothesinteredbrickrawmaterialsnamelyshaleclayandcoalgangue．Thestrengthandqualityofsinteredbrickswouldnotbeaffectedbyaddingauxiliarymaterialandsomeofthemhadhigherstrengthandqualitythanthesinteredbrickwithoutsludge．Keywordsfabricationofbrickswithsludgemicrobialcellwallbreakingmoisturecontent12008325。20084140t80%。、、。80%20%。。510。①·801·3024201412CHINAWATEＲ＆WASTEWATEＲVol．30No．24Dec．2014、②40%、③、④、⑤、、⑥、。3、。2、1。1、Fig．1Flowchartofsludgemodifiedanddeepdewateringprocess80%2h40%48～72h20%。＜20%、。32。280%20%。、、。2Fig．2Flowchartofsludgecomprehensivedisposalprocess4“”①20%。②。③。④、。⑤、1/5。5100t·901·．watergasheat．com302480%150080%400t6000。280/t。6①、、、。②“”。③。。7。。、。、、。。。950～1050℃。1GB/T25031—2010S．2010．2．J．201129333－35．1957－、。[e-mail]2014－06－17·011·3024．watergasheat．com