1. Kev faib tawm los ntawm kev kho tshuab
Raws li cov hauv paus ntsiab lus thiab cov txheej txheem siv thaum kho, txoj kev kho dej khib nyiab tuaj yeem muab faib ua plaub yam tseem ceeb:
1.1 Txoj kev kho lub cev
Kev kho lub cev tshem tawm cov khib nyiab, cov khoom ntab, thiab cov roj los ntawm cov txheej txheem ntawm lub cev yam tsis hloov cov tshuaj lom neeg. Nws yog feem ntau siv nyob rau hauv lub pretreatment theem.
Cov txheej txheem tseem ceeb muaj xws li:
Sedimentation
Lim
Roj sib cais
Dissolved Air Flotation (DAF)
Kev sib cais centrifugal
Sib nqus sib cais
1.2 Txoj Kev Kho Tshuaj
Kev kho tshuaj muaj xws li kev sib ntxiv ntawm cov tshuaj tua kab mob los ua kom muaj tshuaj lom neeg uas hloov pauv lossis tshem tawm cov pa phem.
Cov txheej txheem tseem ceeb muaj xws li:
Coagulation thiab sedimentation
Neutralization
Oxidation-Reduction
Tshuaj los nag
1.3 Txoj Kev Kho Mob Physicochemical
Physicochemical txoj kev sib txuas lub cev thiab tshuaj mechanisms thiab feem ntau yog siv los tshem tawm cov kuab paug los yog refractory.
Cov txheej txheem tseem ceeb muaj xws li:
Adsorption
Ion Txauv
Kev rho tawm
Cua Stripping
Chav Stripping
1.4 Txoj Kev Kho Mob Biological
Kev kho mob lom siv cov microbial metabolism kom txo qis cov pa phem hauv cov organic thiab sawv cev rau cov txheej txheem tseem ceeb hauv kev kho dej khib nyiab.
Cov txheej txheem tseem ceeb suav nrog:
Cov txheej txheem activated sludge
Cov txheej txheem Biofilm
Cov txheej txheem kho anaerobic
Biological Nitrogen thiab Phosphorus Tshem Tawm Txheej Txheem
2. Kev faib tawm los ntawm Lub Hom Phiaj Dej Zoo thiab Cov Khoom Siv Hluav Taws Xob
Raws li cov yam ntxwv muaj txiaj ntsig thiab qhov kawg qhov chaw ntawm cov dej kho, kev kho dej khib nyiab feem ntau muab faib ua thawj, theem nrab, thiab kev kho tertiary.
2.1 Kev Kho Mob Tseem Ceeb (Pretreatment and Mechanical Treatment Stage)
Kev kho thawj zaug feem ntau yog nyob ntawm cov txheej txheem ntawm lub cev kom tshem tawm cov khib nyiab loj, grit, thiab cov ntaub ntawv ntab, muab cov xwm txheej ruaj khov rau cov theem tom ntej.
Tej units muaj xws li:
Coarse thiab Fine Screens
Grit Chambers
Thawj Sedimentation Tanks
Flotation Tanks
Equalization Tanks
2.2 Kev Kho Mob Thib Ob (theem Kev Kho Mob Biological tseem ceeb)
Kev kho mob thib ob yog theem tseem ceeb ntawm kev kho cov dej khib nyiab, feem ntau yog txhawm rau tshem tawm cov kuab paug organic los ntawm cov txheej txheem lom neeg.
Cov txheej txheem muaj xws li:
Cov txheej txheem activated sludge
CAS txheej txheem
A²/O Process
Txheej txheem A/O
SBR txheej txheem
Oxidation Ditch
Hydrolysis-Acidification Tank
2.3 Tertiary Treatment (Kev kho mob siab tshaj thiab siv dej rov qab theem)
Tertiary kev kho mob tsom mus rau tshem tawm cov as-ham, refractory organic tebchaw, thiab taug qab cov pa phem los tswj eutrophication los yog ua kom dej rov qab siv dua.
Common technologies muaj xws li:
Advanced Catalytic Oxidation
Biological Aerated Filters (BAF)
Fiber Lim
Activated Sand Filtration
Rov qab Osmosis (RO)
Membrane Treatment Technologies
Rau cov dej rov qab siv dua tshiab,tshuaj tua kab mob tankfeem ntau yuav tsum tau ua kom muaj kev nyab xeeb ntawm kev nyiam huv. Cov txheej txheem tshuaj tua kab mob muaj xws li:
Ultraviolet (UV) Disinfection
Ozone Disinfection
Chlorine Dioxide Disinfection