Cov txheej txheem kev kho dej phwj yog ntau yam kev lag luam, tsim nyog, kev tshawb fawb thiab kev ua haujlwm zoo rau cov dej phwj hauv nroog thiab cov dej khib nyiab. Kev kho dej phwj tuaj yog siv dav hauv kev tsim kho, kev ua liaj ua teb, kev thauj mus los, lub zog, petrochemical, kev tiv thaiv ib puag ncig, toj roob hauv pes, kev kho mob, catering thiab lwm yam. Cov txheej txheem dej phwj hauv nroog yuav tsum tau txiav txim siab raws li qhov ntsuas kev kho mob, cov yam ntxwv dej zoo, kev ua haujlwm ib puag ncig ntawm lub cev tau txais dej, thiab cov xwm txheej hauv zos thiab cov kev xav tau, tom qab kev sib piv kev lag luam thiab kev lag luam.
A. Kev faib tawm cov txheej txheem dej phwj tuaj
1. Raws li qhov xwm txheej ntawm txoj kev kho mob
Lub cev txoj kev: sedimentation method, pom, roj sib cais, huab cua flotation, centrifugal sib cais, sib nqus sib nqus;
Txoj kev tshuaj: coagulation nag lossis daus txoj kev, neutralization txoj kev, redox txoj kev, tshuaj los nag txoj kev;
Lub cev thiab tshuaj txoj kev: adsorption, ion pauv, rho tawm, stripping, stripping;
Cov txheej txheem lom neeg: txoj kev qhib cov sludge, txoj kev biofilm, txheej txheem anaerobic, cov txheej txheem tshem tawm cov nitrogen thiab phosphorus lom.
B. Raws li cov dej tsis zoo thiab qhov chaw ntawm cov dej kho
Kev kho mob tseem ceeb: kho tshuab (pretreatment stage)
Coarse grille thiab nplua grille, grit chamber, thawj sedimentation tank, cua flotation tank, hloov tank.
Kev kho mob thib ob: cov txheej txheem tseem ceeb yog kev kho mob biochemical (lub cev loj)
Cov txheej txheem ua kom cov sludge, CASS txheej txheem, A2 / O txheej txheem, A / O txheej txheem, SBR, oxidation ditch, hydrolysis acidification tank.
Tertiary Treatment: Tswj Eutrophication thiab rov siv dua
Advanced catalytic oxidation, aerated biological filter, fiber filter, active sand filtration, reverse osmosis, membrane treatment, thiab reclaimed water reuse feem ntau suav nrog cov tshuaj tua kab mob, cov tshuaj tua kab mob ultraviolet ozone, thiab cov tshuaj tua kab mob chlorine dioxide.
Raws li ib txwm muaj, cov dej phwj tuaj tiag feem ntau muaj ntau yam kuab paug, thiab tsuas yog ib txoj kev kho mob feem ntau tsis ua tiav qhov kev xav tau. Txhawm rau kom tau txais cov txiaj ntsig kev kho mob zoo dua ntawm tus nqi kho mob qis dua, nws yog qhov yuav tsum tau xaiv ntau txoj kev kho mob raws li qee yam, xws li cov dej phwj zoo, qhov dej, qhov kev kho mob, qhov muaj peev xwm rov ua dua tshiab. cov khoom muaj txiaj ntsig, thiab cov xwm txheej ntawm lub peev thiab qhov chaw. Qhov kev sib raug zoo ntawm thawj thiab theem nrab thiab qhov sib lawv liag ua ntej thiab tom qab yog tsim nyog ua ke los tsim ib qho kev kho kom huv huv.