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鸟粪石结晶法去除某粮食发酵废水中磷的研究_韩秀茹

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鸟粪石结晶法去除某粮食发酵废水中磷的研究_韩秀茹winter.Fortheresearchpurpose,wehaveinvestigatedtheeffi-ciencyofthereactorduringtheset-upperiodandsettleddownNH+4-Nremovalefficiencysuccessfullyfor6-14dayslater,whenthereactortendstoincreasegraduallyandfinallyreach76.16%tillthe14thday.Insodoing,wehavemadecarefulinvestiga-tionsovertheimpactsofthewaterfeedingpatternandtheopera-tionalconditionsonthenitrificationefficiencyofthedeepsequen-cingconstructedwetlands(DSCW)inhopingtodevelopakindofhighlyefficientnitrificationtechnologyfortreatingthetailingwa-terinthesewage-processingplant.Theresultsofourinvestigationandtestinghaveshownthat,thenitrificationefficiencycanbeaf-fectedsignificantlybythewaterfeedingpattern,thefeedingdura-tion,aswellastheidlingtime.Forexample,whentheoperationisdoneina“continuousinfluent”pattern,orina“5.5hcontin-uousinfluent-0.5hintermittenteffluent”,orinthemannerof“0.25hcontinuousinfluent-1.25hintermittenteffluent-4.5hi-dling”,themassconcentrationsofeffluentNH+4-Nshouldbe8.70mg/L,2.87mg/Land5.31mg/L

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