1.3.2 Kev tshuaj lom Anaerobic
Tam sim no, txoj kev kho cov tshuaj khib nyiab ntau hauv tsev thiab sab nraud yog siv raws li txoj kev tswj hwm, tab sis cov kua COD kuj tseem nyob siab tom qab kev kho mob los ntawm kev sib cais hauv txoj kev cais, thiab nws yog ib qho tseem ceeb uas yuav tsum tau kho tom qab kho (xws li aerobic lom kev kho mob). Tam sim no, nws yog ib qho tsim nyog los txhim kho txoj kev tsim kho thiab tsim ntawm kev ua haujlwm kom muaj zog ntawm kev ua haujlwm zoo thiab ua kom muaj kev soj ntsuam ntawm kev khiav hauj lwm. (UASB), kev sib txig sib txuam hauv tsev (UBF), txoj kev ua lag luam ntawm lub cev (ABR), kev siv hluav taws xob thiab lwm yam khoom siv rau hauv kev kho cov tshuaj siv dej tshuaj.
(1) UASB txoj kev
UASB reactor muaj qhov zoo ntawm cov txheej txheem higherobic digestion, cov qauv yooj yim, luv hydraulic retention lub sij hawm, tsis xav tau lwm sludge reflow ntaus ntawv. UASB kev kho mob ntawm kanamycin, chlorine enzymes, VC, SD thiab qabzib thiab lwm yam kev cog tshuaj ntawm cov dej khib nyiab, feem ntau yuav tsum tau cov ntsiab lus SS yog tsis siab dhau los kom paub meej tias COD tshem tawm ntawm 85% txog 90% lossis ntau dua. Kev tshem tawm COD tshem ntawm qhov kev txiav txim siab thib ob UASB tuaj yeem siab tshaj 90%.
(2) UBF txujci
UASB thiab UBF tau sib piv thiab kuaj. Cov txiaj ntsig tsom pom tias UBF muaj cov yam ntxwv ntawm kev hloov huab hwm coj thiab kev sib cais, kev siv roj ntsha thiab biological hom, kev ua haujlwm siab thiab kev khiav haujlwm ruaj khov. Oxygen bioreactor.
(3) Hydrolysis thiab acidification
Lub tshuab hydrolysis hu ua hydrolyzed upflow sludge txaj (HUSB), uas yog UASB zoo tuaj. Hydrolysis ntawm lub pas dej ua ke tshaj qhov txheej txheem ntawm kev siv tshuaj yeeb nkab muaj qhov zoo li nram qab no: tsis kaw, sib xyaw, tsis muaj peb theem cais, txo tus nqi thiab cov khoom siv tu; yuav ua tau kom cov kab mob loj hauv cov kav dej phwj hauv dej, biodegradable organic degradation ntawm cov khoom me me, Biodegradable organic teeb meem, los txhim kho txoj kev siv dej ntawm biodegradability; cov lus teb ceev ceev, me me pond, tsawg dua peev hauv kev ua vaj tse, thiab txo tau cov nyiaj sludge. Nyob rau hauv xyoo tas los, txoj kev ua kom cov hydrolysis-aerobic tau siv los kho cov tshuaj siv dej tshuaj. Piv txwv li, lub koom haum biological tshuaj siv hydrolytic acidification - ob-theem txheeb tshuaj tiv thaiv oxidation los kho cov tshuaj siv dej khib nyiab, ruaj khov, tshem tawm cov organic raug tshem tawm, COD, BOD5 thiab SS tshem tawm yog 90.7%, 92.4% thiab 87.6% feem.
