鸟粪石结晶法去除某粮食发酵废水中磷的研究_韩秀茹

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