1.Media Filling Theem
(1) Thaum lub sijhawm pub zaub mov, saib xyuas qhov tshwm sim ntawm qhov tshwm sim.Yog qhov tshwm sim tshwm sim, tso tseg tsis pub noj tam sim. Rov pib pub rau hnub tom qab tom qab rov- kev soj ntsuam.
(2) Ua haujlwm aeration sib nrug thaum lub sijhawm pub mis.Nruam aeration tuaj yeem siv thaum hmo ntuj, tab sis qhov kev siv aeration yuav tsum raug txo.
(3) Tom qab 24 teev ntawm kev ua haujlwm, qhia kev ua haujlwm tsis tu ncua rau 2-3 teev, tom qab ntawd txuas ntxiv nrog cov aeration raws li tau piav qhia saum toj no.Tom qab 48 teev ntawm kev ua haujlwm, saib xyuas cov ntaub ntawv biofilm txuas rau ntawm cov xov xwm.Tau qhov muaj zog txaus thiab txuas ntxiv lub sijhawm muaj zog.Kuaj xyuas cov pa oxygen (DO10.5) nyob ib ncig ntawm lub tank. mg/L.Tom qab 72 teev ntawm kev ua haujlwm, txuas mus rau lub zog thiab maj mam nce nws mus rau tus qauv ntws ntws.Saib xyuas cov dej tsis zoo thiab cov dej tsis zoo tsis tu ncua.Nws cia siab tias cov qauv tsim cov dej ntws zoo yuav tau ntsib hauv kwv yees li 7 hnub.
2.BiofilmCultivation Stage
Biofilm cultivation yog hais txog cov txheej txheem ntawm kev tsim thiab accumulating ib tug npaum li cas ntawm microorganisms nyob rau hauv cov kev kho mob system los ntawm cov kev tshwj xeeb, tso cai rau cov biofilm ntawm cov xov xwm mus txog ib tug tej thickness.Cov kev cog qoob loo tseem ceeb yog static cultivation thiab dynamic cultivation.
(1) Static Cultivation
Kev cog qoob loo zoo li qub txhais tau tias: Txhawm rau tiv thaiv cov kab mob tshiab tshiab los ntawm kev ntxuav tawm thiab ua kom lub sijhawm sib cuag ntawm cov kab mob thiab cov txheej txheem tshaj tawm, yog li ua kom cov biofilm ua kom nrawm dua.Thaum pib, kom tsis txhob muaj cov khoom noj tsis txaus vim yog cov dej khib nyiab, ntxiv cov as-ham substrates xws li urea, diammonium phosphate ib hnub ib zaug ntawm cov suab thaj dawb (D. C: N: P=100: 5: 1. Ua ntej, tso cov noob sludge (10% ntawm cov khoom siv biochemical zoo) thiab cov dej khib nyiab rau hauv lub tank biochemical, ces pib aeration rau cultivation.Qhov ntim ntawm cov xov xwm nyob rau hauv lub biochemical tank yuav tsum yog 35% ~ 40% ntawm lub reactor lub ntim zoo ntim.Cia rau 4 teev tsis muaj ib tug microculeration. mus rau hauv xov xwm.Tom qab ntawd aerate rau 1 teev, ua raws li los ntawm sawv rau 2 teev, ces aerate rau 1 teev.Ua lub voj voog no.Tom qab 4-5 hnub, cov xov xwm saum npoo yuav tsum tau npog tag nrho nrog biofilm.Hnub 6, pib nruam influent ntawm tus nqi qis.
(2) Dynamic Cultivation
Tom qab 6 hnub ntawm kev cog qoob loo zoo li qub, cov txheej nyias nyias ntawm cov xim daj -xim av biofilm yuav tsum tau loj hlob ntawm qhov chaw tshaj tawm. Hloov mus rau qhov muaj zog txuas ntxiv rau kev cog qoob loo dynamic.Kho kom haum tus nqi ntws thiab tswj cov pa yaj (DO) nruab nrab ntawm 2 ~ 4 mg / L ( ntsuas DO nrog rau 15 hnub ua pa oxygen bass thaj tsam li 15 hnub). thiab Litonotus (saib nrog lub tshuab kuaj kab mob lom neeg) yuav tsum tshwm sim hauv xov xwm; cov xov xwm yuav tsum hnov ntxhiab thiab nplua rau qhov kov.Tom qab 20 hnub, flagellates, Vorticella, Paramecium, cov kab mob dawb thiab lwm yam protozoa tshwm sim.Tom qab 20 hnub ntawm kev cog qoob loo, metazoa xws li rotifers tshwm sim, thiab nematodes. matured.Nruam kev lag luam tuaj yeem pib.
3.Biofilm Acclimation theem
Lub hom phiaj ntawm acclimation yog xaiv cov kab mob uas yoog raws cov dej zoo tiag tiag thiab tshem tawm cov uas tsis yog - siv tau.Rau cov txheej txheem kho nrog nitrogen thiab phosphorus tshem tawm cov haujlwm, acclimation aims ua kom cov kab mob nitrifying, denitrifying cov kab mob, thiab phosphorus -cov kab mob sib sau ua ke (PAOs) cov pej xeem tshwj xeeb. Kev ua haujlwm ntawm cov txheej txheem.Tom qab ntawd, tswj cov txheej txheem nruj me ntsis: qhov nruab nrab DO yuav tsum tau tswj ntawm 2 ~ 3 mg / L, thiab lub sijhawm aeration hauv lub tank aerobic yuav tsum tsis pub tsawg tshaj 5 teev.Thaum cov txheej txheem no, ntsuas txhua qhov ntsuas dej zoo thiab tswj tsis tau txhua hnub.Thaum qhov nruab nrab thickness ntawm biofilm mus txog kwv yees li 0.2-0. acclimation kom txog rau thaum effluent ntsuas xws li BOD₅, SS, thiab CODCrua tau raws li qhov yuav tsum tau ua.