Page 92 - 《水资源与水工程学报》2025年第1期
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!36 "!1 #                         & ' ( ) & * + , -                               Vol.36No.1
               2025 $ 2 %               JournalofWaterResources&WaterEngineering                 Feb.,2025

            DOI:10.11705/j.issn.1672-643X.2025.01.10


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                 BC<DE:X703.1   FGHIJ:A    FKLE:1672643X(2025)01008807
                      Effectsofdifferentbiofilm cultivationmethodsonpurificationof
                                  ruraldomesticsewagebybiologyslowfilters

                                                         1
                                                                                      1
                                                                        2
                                             1
                                   WANGYu,HONGKai,ZHENGWei,YANGChao
                   (1.CollegeofHydraulicandEnvironmentalEngineering,ChinaThreeGorgesUniversity,Yichang443002,China;
                                2.ShaoguanWujiangDistrictWaterServiceCenter,Shaoguan512026,China))
                 Abstract:Bioslowfiltrationwaterpurificationtechnologycaneffectivelyreducethecontentoforganic
                 pollutantsinwaterandimprovethewaterqualitybyinterception ,filtration,adsorptionanddecomposition
                 ofsewagebyfiltermaterialsandbiofilms.Thehighcontentoforganicmatterisaprominentfeatureofru
                 raldomesticsewage.Inordertoimprovethepurificationefficiencyofruraldomesticsewagebybioslow
                 filtrationwaterpurificationtechnology ,itisnecessarytooptimizethestructureandperformanceofthefil
                 termaterialsandbiofilmsinthebiologyslowfilter(BSF).Theeffectofdifferentbiofilm cultivation
                 methodsonthepurificationofruraldomesticsewagebyBSFwerecomparedandanalyzedbylaboratory
                 biofilmcultivationandBSFpurificationexperiments.Theresultsshowedthatthebiofilmformedbyartifi
                 cialinoculationneededshortermaturationtimeandhadstrongerstabilitythanthatformedbynaturalcul
                 tivationat25℃.However ,therewasnosignificantdifferenceinthepurificationeffectofsewageturbidi
                 ty,ammonianitrogenandtotalphosphorusbyBSFwithdifferentbiofilmcultivationmethodsafterthemat
                 urationofbiofilm ,excepttheremovaleffectoforganicmatter(COD)insewagebyBSFwithartificialin
                 oculationbiofilm ,whichwassignificantlybetterthanthatofBSFwithnaturalcultivationbiofilm.Both
                 cultivationmethodshavegoodpurificationefficiencyforruraldomesticsewage ,andalltheeffluentquality
                 indicatorsmeettherequirementsofsewagedischarge.Theresearchresultscanprovidetechnicalrefer

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