供水厂水质超标问题诊断与调试运行思路

1111222131．1001242．0210003．150090。3～4℃。、。、、。T[e-mail]ndard-exceedingofWaterQualityinWaterworksandItsSolutionsMENXuan1LIDong1CAIYan-an1ZENGHui-ping1LIYuan-bin2SUNHai-lin2LIShu-qi2ZHANGJie131．KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentＲecoveryEngineeringBeijingUniversityofTechnologyBeijing100124China2．HailarDistrictWaterSupplyCompanyHulunbeir021000China3．StateKeyLaboratoryofUrbanWaterＲesourceandEnvironmentHarbinInstituteofTechnologyHarbin150090ChinaAbstractＲeasonsofstandard-exceedingofwaterqualityinmanganeseremovalwereinvestigatedbasedontheoperationaldataofawaterworks．Theanalyticalresultsindicatedthatpotassiumpermanga-nateasastrongeroxidantfailedtoachievemanganeseoxidationinlow-temperaturegroundwater3to4℃insteadcausedahighermanganeselevelintheproducedwaterthanthatinrawwater．Thesolu-tionwasusingliquidchlorineasoxidantandthechlorinewasdosedattheinletofthefilterfollowingtheairfloatationtank．Theresultsshowedthatthechlorinationcouldachievethesimultaneousremovalofi-ronmanganeseandammonianitrogen．Thenormaloperationoftheairfloatationtankcouldeffectivelya-voidthegenerationofdisinfectionby-productsinthechlorinationprocess．Keywordslow-temperaturegroundwaterFeandMnremovalpotassiumpermanganateoxi-·1·311120156CHINAWATEＲ＆WASTEWATEＲVol．31No．11Jun．2015dationbreak-pointchlorination、。3～4℃《》。。1、、2．8～3．2、0．38～0．45、0．90～1．20mg/L。1。A、B。。1Fig．1Watertreatmentprocessusedinwatersupplyplant。。、、。。、。、、。。。。2＜0．5mg/L0．1mg/L＜0．3mg/L。1。。1450m3/h1。ⅠⅡ4～5mg/LⅢⅣ。1Tab．1Waysforapplicationofreagentsindifferentperiodspriortorunningtestsmg·L－1Ⅰ25～30——Ⅱ25～301—Ⅲ25～30—6～8Ⅳ25～300．3～0．56～82.1Ⅰ。。A、B0．3mg/L。·2·3111．watergasheat．com0．5mg/L。＜0．1mg/L。820mV200mV。。。1。220mV。。2.2Ⅱ、、2。2ⅡFig．2WatertreatmenteffectsduringoperationalperiodⅡ1mg/LⅠ。。A、B0．6、0．7mg/L0．6mg/L0．4mg/L0．2mg/L。1mg/L0．35mg/L0．2mg/L0．57mg/L0．43mg/L。。1mg/L0．94mg/L。2．5mg/L2．35mg/L。1mg/L0．43mg/L。。。2.3Ⅲ、3。3ⅢFig．3WatertreatmenteffectsduringoperationalperiodⅢ30．5mg/L。。。。。2.41mg/L8mg/LⅣ＞1mg/L。·3·．watergasheat．com311120．3～0．5mg/L。43～4℃。4ⅣFig．4WatertreatmenteffectsduringoperationalperiodⅣ3①②。。—。、1。3。、。0．06mg/L0．13mg/L。—。4①、、。、、。②—。③。④、、。1．J．201130860－64．2．J．20077557－59．3．J．201430131－5．1990－。[e-mail]2015－02－28·4·3111．watergasheat．com