Hauv kev ua haujlwm txhua hnub ntawm kev kho cov dej da dej, muaj ib txwm muaj cov xwm txheej tsis muaj txiaj ntsig hauv cov ntaub ntawv txhua ib zaug hauv ib pliag. Piv txwv li, Cod tau nce, tag nrho cov nitrogen tau nce ntxiv, thiab tag nrho cov phosphorus yuav luag tsis tau tswj hwm. Ntawm chav kawm, cov no yog txhua yam traceable, thiab qhov xwm txheej tsis muaj dab tsi ntau tshaj li cov khoom siv pov tseg tsis ua haujlwm, thiab hloov pauv ntawm cov ntaub ntawv kom zoo. Rau cov khoom siv lim dej ua tsis tiav, kev tshuaj xyuas tuaj yeem siv dag zog, thiab cov kev sib tw tau kuj tseem tuaj yeem coj mus hloov hauv cov dej tsis zoo.
1. Tsim kev tswj hwm lub sijhawm tiag tiag
Txhim kho cov cuab yeej soj ntsuam online ntawm cov inlet tuaj yeem ntes cov khoom siv dej zoo xws li cov tshuaj oxygen (biochemical), cov ntsiab lus hlau, PHEEJ NTXIV, PY QE. Teem cov lus ceeb toom, thiab ib zaug saib cov ntaub ntawv tshaj qhov teeb tus nqi, tus neeg teb xov tooj yuav tsum tau siv kev ntsuas thiab kho cov kev siv tshuab ua kom raws sijhawm.
2. Cov Khoom Siv Thaum Muaj Xwm Ceev Tseg
Cov khoom siv thaum muaj xwm ceev yog qhov tseem ceeb rau cov nroj tsuag dej phwj tuaj ua kom muaj kev hloov pauv ntawm cov dej zoo. Yog tias cov neeg mob tso cai, cov neeg nruab nrab ntawm cov neeg muaj txiaj ntsig zoo li cov sulfuric acid, thiab sodium hydroxide thiab kua qaub kom nce ntau dhau p qhov txiaj ntsig. Cov neeg sawv cev nruab nrab yuav tsum tau tshwj tseg raws li kev kho lub zog ntawm cov roj pheebsuab, thiab feem ntau yuav tsum paub meej tias lawv tuaj yeem sib ntsib tsawg kawg ib asthiv kev kho mob.
Nyob rau hauv cov nqe lus ntawm adsorbents, ua kom tau cov pa roj carbon ntau yog siv tau. Ua kom cov pa roj carbon tau muaj peev xwm ua kom muaj peev xwm adsorption muaj zog thiab muaj peev xwm adsorb organic thiab qee cov hlau hnyav. Tus nqi tshwj tseg yuav tsum tau txiav txim siab raws li kev kho mob muaj peev xwm ntawm cov dej phwj tuaj thiab cov peev xwm ua tau ntawm cov pa paug. Nws raug nquahu tias lub peev nyiaj yuav tsum tsis pub tsawg tshaj li ib nrab ib hlis siv. Nyob rau tib lub sijhawm, kev saib xyuas yuav tsum tau them nyiaj rau cov neeg muaj kev cia ntawm cov pa roj carbon, kom nws qhuav thiab ua kom muaj qhov ua kom tsawg dua hauv kev ua tiav kev ua tiav kev ua adsorption.
Cawv thiab cov coutterulants yog cov ntaub ntawv tseem ceeb. Co Co Coavulants suav nrog Polyaluminium chloride (PAC) thiab polyerric sulfate (PFS), thaum Coagulants suav nrog polyacrylamide (PAM). Cov tshuaj tiv thaiv no tuaj yeem nrawm qhov sib coagulation thiab nag lossis daus ntawm kev raug tshem tawm thiab colloids, txhim kho kev kho mob. Tus nqi uas muaj feem xyuam uas yuav tsum tau kwv yees raws cov kev siv txhua hnub thiab qhov siab tshaj plaws rau cov lus teb thaum muaj xwm txheej ceev, feem ntau tsis tsawg dua ib hlis siv. Thaum khaws cia, saib xyuas yuav tsum tau them rau kev tiv thaiv noo noo thiab zam kev txhaj tshuaj los ntawm kev nqus dej thiab txhaws.
Rau cov as-ham xws li nitrogen, phosphorus, poov tshuaj, thiab lwm yam, lawv yuav tsum tau khaws cia raws li cov kev xav tau ntawm cov kab mob hauv dej. Thaum kev hloov pauv ntawm cov dej ua tau zoo ua rau cov roj ntsha tsis txaus, ua raws cov khoom noj muaj peev xwm pab tswj hwm microbial kev ua ub thiab metabolic haujlwm. Tus nqi uas tshwj xeeb yuav tsum tau txiav txim siab raws li lub peev xwm tank thiab cov microbial muaj peev xwm cog tsob ntoo, feem ntau yog ua kom muaj kev sib cais ntawm ob lub lis piam.
Ib qho ntxiv, qee qhov kev tshuaj lom neeg oxidants xws li cov poov tshuaj permanganate thiab hydrogen peroxide thiab hydrogen peroxide thiab hydrogen peroxide tuaj yeem khaws cia cov organic muaj teeb meem yog qhov siab heev; Thiab tshuaj lom neeg txo cov neeg sawv cev, xws li sodium sulfite, yog siv los kho qee cov pa paug oxidatant uas tshaj tus qauv.
Thaum resaple cov khoom siv thaum muaj xwm ceev, ib qho kev ua tiav cov khoom siv nruj yuav tsum tau tsim. Cov ntaub ntawv soj ntsuam tsis tu ncua kom lawv ua tau zoo thiab ua tau zoo yog qhov xwm txheej zoo. Rau cov ntaub ntawv uas tab tom nce lawv hnub tas sij hawm lossis tau tas sijhawm, lawv yuav tsum tau hloov thiab rov ua raws sijhawm.
3. Cov txheej txheem hloov kho ntawm kev kho kom zoo
Yog hais tias cov tshuaj lom neeg cov pa oxygen (COD) thiab biochemical oxygen thov (bod) ntawm cov dej nkag tau tam sim ntawd
(1) nce Aeration tus nqi: los ntawm kev nce lub zog ntawm cov khoom siv dej pheebsuab tig, ntau dua cov pa roj carbon monoxide kom tau raws li cov kab mob oxygen thaum cov pa taws pom kev zoo siab. Qhov no pab txhim kho cov kev ua ub metabolic ntawm cov kab mob metabolic ntawm cov kab mob metabolic thiab ua kom nrawm dua qhov teeb meem ntawm cov organic.
(2) Txuas ntxiv rau lub sijhawm ua haujlwm Hydraulic: Qhov no tuaj yeem ua tiav los ntawm kev txo cov nqi los yog nce ntxiv cov khoom siv tau ib ntus ntawm kev kho mob tank. Lub sijhawm chaw nyob ntev muab cov qauv kev sib tham nrog cov kev sib cuag ntau dua thiab muaj kev sib ntsib nrog cov organic, li kev txhim kho cov kev ua tau zoo ntawm cov organic teeb meem tshem tawm.
(3) Pab txhawb nqa microbial cov neeg sawv cev: Yog hais tias kev ua kom muaj peev xwm ua tau ntawm cov neeg sawv cev microbial, ntxiv rau kev txiav txim siab sai sai ntawm kev kho mob rau cov organic.
(4) Kho cov sludge rov piv txwv: nce sludge rov qab piv txwv rau cov kab mob biological, thiab txhim kho qhov kev tshem tawm ntawm cov organic.
Rau cov xwm txheej uas ammonia nitrogen dheev nce
(1) Ua kom ntau npaum li cas ntawm Nitrifying Bacteria: Ntxiv cov kab mob nitrifying kom sai thiab ua haujlwm ntawm Nitrification cov tshuaj tiv thaiv.
(2) Kho cov tshuaj refux: nce rau REFUX tus nqi ntawm cov nitrogen rov qab mus rau anoxic cheeb tsam rau cov ammonia nitrogen.
(3) Ua kom pom kev zoo Aeration zoning: raws li kev faib tawm ntawm cov khoom siv aeration, hloov kho cov khoom siv oxygen kom ua kom muaj cov tshuaj tiv thaiv pa oxygen Kev tswj cov pa oxygen kev pom zoo: tswj cov tshuaj tiv thaiv kab mob rau ntawm nitricification, tab sis kuj tseem yuav tsum tau ua ib qho kev xav tau ntau dhau los ntawm kev cuam tshuam ntawm nitrify cov kab mob.
Thaum cov neeg hlau hnyav tshaj tus qauv
(1) Tshuaj lom neeg cov tshuaj lom neeg: Ntxiv cov tshuaj lom neeg tsim nyog, xws li sodrium hydroxide), thiab lwm yam, los ua insoluble precipitates nrog cov hlau hnyav. Los ntawm kev kho cov tshuaj ntau heev ntawm cov khoom siv nag thiab cov tshuaj tiv thaiv, cov hlau hnyav tuaj yeem ua rau ntau li ntau tau.
(2) ion sib pauv qauv: siv ion sib pauv resin rau adsorb hnyav hlau ions hauv dej. Thaum muaj xwm ceev, tus naj npawb ntawm Eons sib pauv cov dej tuaj yeem nce lossis cov dej sib pauv tau nce ntxiv kev tshem tawm cov khoom siv hnyav.
(3) MEMBRANE Cais Technology: Siv cov khoom siv sib cais xws li rov qab Osmoses kom lim cov hlau hnyav, yog li ntawd cov hlau hnyav tau cuam tshuam thiab tshem tawm. Thaum lub sijhawm thaum muaj xwm ceev teb, cov kev ua haujlwm ntawm daim nyias nyias muaj txiaj ntsig zoo los txhim kho kev txuag nyiaj.
Yog tias tus nqi PHEEJ Deviates los ntawm qhov qub
Thaum tus nqi pH ntau dhau, acidic tshuaj xws li sulfuric acid, thiab cov kev hloov pauv pH nqi yuav tsum tau ua raws li kev hloov kho pyl ntau dhau. Yog tias tus nqi PHU tau tsawg dhau, ntxiv cov tshuaj Alkaline xws li sodium hydroxide, txiv qaub dej, thiab lwm yam rau kev neutralization. Thaum ntxiv cov txheej txheem, nws yuav tsum tau txuas tusyees thiab maj mam tiv thaiv kom tsis txhob hloov pauv hauv pH qhov tseem ceeb ntawm kev kho mob.