隔油沉淀曝气调节混凝气浮A省略O工艺在水产加工废水处理中的应用张司桥

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2020-07-17

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95491.33248×105t1.54343×109[1]。。、。120、4.57600m3·d-18000m3·d-1。、。1、、、COD、NH3-N、SS4000、150、2000mg·L-1。22%～3%3200mg·L-110mg·L-1。1。22.11。2.2、pHCOD/mg·L-1BOD5/mg·L-1SS/mg·L-1/mg·L-1NH3-N/mg·L-1TP/mg·L-17.01000～1900400～1000400～60050～8060～1058～107.01900100060080105106～91503015015251.01Table1Wastewaterqualityandstandardsofemission－－－A2/O310027、、。－－－A2/OCOD≤2200mg·L-1NH3-N≤80mg·L-1。、、。A2/OX703.1B1000-3770(2009)06-110-032009-02-181972-13758288000E-mailtnnd88@126.com。1Fig.1Flowchartofwastewatertreatmentprocess35620096TECHNOLOGYOFWATERTREATMENTVol.35No.6Jun.,2009110DOI:10.16796/j.cnki.1000-3770.2009.06.029。CODNH3-N。A2/OB/C0.5A2/O、、、。、。、、、、。2.322000m3·d-1、、A2/O8000m3·d-1。2112。2。33.12005332～510d。450%。A2/O012345678910110200400600800100012001400BOD/mgL/d3BOD5Fig.3ResultofBOD5removal012345678910110102030405060708090100NH-N/mgL/d4NH3-NFig.4ResultofNH3-Nremoval5TPFig.5ResultofTPremoval01234567891011010203040506070TP/mgL/d0123456789101105001000150020002500COD/mgL/d2CODFig.2ResultofCODremoval2Table2MaindesignparametersofwaterA2/Oq=1.3m3·m-2·h-1HRT=2.5hHRT=8hq=4m3·m-2·h-1HRT=30min0.1kgBOD5·kg-1MLSS·d-1HRT=40hq＝0.64m3·m-2·h-1HRT=2.5h-Q=110m3·min-1ΔP=58.8kPaN=160kW8～15m3·h-1N＝11kW32.0m×8.0m×4.5m32.0m×60.0m×4.0m16.0m×8.0m×2.5m77.5m×35.5m×5.5mΦ27.0m×4.0m23.0m×6.0m×5.0mD110LWL36011111-33－－－A2/O111APPLICATIONOFGREASYSEGREGATING-PRECIPITATING,AIRBLOWING-CONGLOMERATING-A2/OCOMBINATIONTECHNOLOGYINWASTEWATERFROMTHESEAFOODCOMPANYZhangSiqiao（HangzhouZhejiangUniversityQiushiEnvironmentProtectionEngineeringCO.,LTD,Hangzhou310027,China）Abstract:Thewastewaterfromtheseafoodcompanyfeatureshighdensityoffloats,organiccompoundaswellastheammoniabasednitrogenandtotalphosphor.Bytreatingitthroughtheprocedurelikegreasysegregating,precipitating,airblowing,conglomeratingandA2/O,thedischargedwaterqualitycanmeettherequirementoflevel2forthegeneraldischagesandquiteafewindexcanevenmeetthemiddlewaterstandardifweassumethatthewastewaterbeforetreatmentiscomposedofCODnohigherthan2200mg·L-1andNH3-Nnohigherthan80mg·L-1.Itprovedbythepracticesthatsuchtreatmentprocedureiscostsavingandeasytooperatebutworkswithgoodresults.Keywords：wasterwaterfromseafoodprocessing;greasysegregationandprecipitating;airblowing;conglomerating;A/2O。。。。pHpH8.5pH8.516mg·L-1A2/O5。。3.211000m2700kW。1.61·m-30.76·m-3、PAC、PAM0.77·m-30.08·m-3。80%18t3000。COD、BOD5、SS、NH3-N、TP4500、2200、1300、190、90t、。4－－－A2/OGB8978-1996COD、BOD5。、。+。。。。。。。[1],,.[J].·,2008(5):69-72.356112