翻板滤池在虹吸滤池改造中的应用

1121．＜＞3176052．300074、、、。。3NTU＜0．3NTU＞36h。TU991C1000－4602201508－0077－04ApplicationofShutterFilterTechnologytoＲenovationofSiphonFilterYANGYong-zhi1ZHAOXiao-ming1ZHANGDe-yue21．JinghuaGroup＜Yuhuan＞WaterSupplyandSewageDrainageDesignandＲesearchInstituteCo．Ltd．Taizhou317605China2．NorthChinaMunicipalEngineeringDesignandＲesearchInstituteCo．Ltd．Tianjin300074ChinaAbstractDuringtheoperationoftraditionalsiphonfilterthereexistvariousproblemssuchasin-completebackwasheasyhardeningoffiltermediashortfiltercyclepoorfiltrationeffectandsoon．Withfurtherstringencyofwaterqualityrequirementsmanywatersupplycompaniesoftenabandonexist-ingsiphonfilterandswitchtootherfiltrationprocess．Inconsiderationofthespecialstructureofsiphonfilteraswellasitsrenovationcharacteristicsofdeeptankandexpandablefilterareashutterfilterprocesswasdesignedbymeansofconstantwaterlevelfilteringandair-waterbackwashtorealizeautomaticrun-ning．Inthefullloadoperationwhentheinflowturbiditywasthe3NTUtheturbidityoffiltratedwaterwas0．3NTUthefiltercyclewasmorethan36hourthecompletebackwashoffiltermediaandbetterrecoveryoffilterperformancewerealsoachieved．Keywordssiphonfilterrenovationshutterfilterair-waterbackwashconstantwaterlevelfilteringautomaticrunning1968。19902×104m3/d19977×104m3/d。2005·77·31820154CHINAWATEＲ＆WASTEWATEＲVol．31No．8Apr．2015。1～3。12×104m3/d64．5m×4．0m、。1。1Fig．1Siphonfilterbeforerenovation。。。1。12004Tab．1Partialoperatingdataoffilterbeforerenovation2004/h/NTU/NTU713～162．71．2811～143．41．6910～124．12．21011～133．81．81112～153．31．41213～153．21．32①。。②。15cm。③。。④。“”。3①2×104m3/d≤3NTU≤0．5NTU≥36h。②。③。·87·318．watergasheat．com44.1①、。。。、。②。。。、。。。。2。2Tab．2Elevationsinsidefilterafterrenovationm－0．80±0．00m0．40．850．45m2．101．25m4．402．10③、3。3、Tab．3Inletandoutletpipelinesandcontrolvalvesafterrenovation/m·s－10．87DN2500．87DN25018．7DN1503．73DN3001500mm×200mm2DN50。。。DN500。、。。。。④。⑤PLC6。、。4.2。①150mm。②2min。③4min。④1min。⑤。1680mm20s45°90°。⑥A。4.32。·97·．watergasheat．com3182Fig．2Filterafterrenovation917m3/h10%6．9m/h22m2132m26。－－q=54m3/h·m2t=2minq=54m3/h·m2q=14．4m3/h·m2t=4minq=43．2m3/h·m2t=1min。。d10=0．9～1．2mmK80=1．351．25m0．45m3～6mm100mm8～12mm350mm。53201410。4。42014Tab．4Partialoperatingdataoffilterafterrenovation2014/h/NTU/NTU1037～393．10．31138～402．80．21236～393．20．36。＜0．3NTU＞36h。、。1CECS3212012S．2012．2．J．2006222027－29．3．J．2003191173－74．1973－。[e-mail]2014－12－22·08·318．watergasheat．com