Cov txheej txheem kho dej phwj yog muab faib ua peb theem:
Kev kho mob tseem ceeb: kev kho lub cev, los ntawm kev kho tshuab, xws li grille, sedimentation lossis air flotation, tshem tawm pob zeb, xuab zeb thiab gravel, roj, roj, thiab lwm yam uas muaj nyob hauv cov dej phwj tuaj.
Kev kho mob thib ob: kev kho biochemical, cov pa phem hauv cov dej phwj tuaj yog degraded thiab hloov mus rau hauv sludge raws li kev ua ntawm cov kab mob.
Tertiary kev kho mob: kev kho mob siab heev ntawm cov dej phwj tuaj, uas suav nrog kev tshem tawm cov as-ham thiab tshuaj tua kab mob ntawm cov dej phwj tuaj los ntawm chlorination, hluav taws xob ultraviolet lossis ozone technology. Raws li cov hom phiaj kev kho mob thiab dej zoo, qee qhov kev kho dej phwj tuaj tsis suav nrog tag nrho cov txheej txheem saum toj no.
01 Kev kho mob tseem ceeb
Cov txheej txheem kho tshuab (theem thawj) suav nrog cov qauv xws li grilles, grit chambers, thawj cov dej khib nyiab, thiab lwm yam, kom tshem tawm cov coarse hais thiab cov khib nyiab tshem tawm. Lub hauv paus ntsiab lus ntawm kev kho mob yog ua kom tiav cov kua-kua sib cais los ntawm kev siv lub cev thiab cais cov pa phem los ntawm cov dej phwj tuaj, uas yog ib txoj kev siv dej phwj tuaj.
Kev kho tshuab (thawj) yog qhov tsim nyog rau txhua txoj kev kho dej phwj tuaj (txawm tias qee cov txheej txheem qee zaum tshem tawm thawj lub tank), thiab cov nqi tshem tawm ntawm BOD5 thiab SS hauv kev kho cov dej phwj hauv nroog yog 25% thiab 50%, feem. .
Nyob rau hauv lom phosphorus thiab nitrogen tshem tawm cov dej phwj tuaj kho cov nroj tsuag, aerated grit chambers feem ntau tsis pom zoo kom tsis txhob tshem tawm sai sai degraded organic teeb meem; Thaum cov dej zoo yam ntxwv ntawm cov dej phwj nyoos tsis tsim nyog rau kev tshem tawm phosphorus thiab nitrogen, qhov chaw ntawm lub hauv paus sedimentation thiab kev teeb tsa Cov txheej txheem yuav tsum tau ua tib zoo txheeb xyuas thiab txiav txim siab raws li cov txheej txheem ua raws li cov yam ntxwv ntawm cov dej zoo, thiaj li ua kom ntseeg tau. thiab txhim kho cov dej muaj txiaj ntsig zoo ntawm kev taug qab cov txheej txheem xws li phosphorus tshem tawm thiab denitrification.
02 Kev kho mob thib ob
Kev kho dej phwj biochemical belongs rau kev kho mob theem nrab, nrog lub hom phiaj tseem ceeb ntawm kev tshem tawm cov khib nyiab uas tsis tuaj yeem tshem tawm thiab soluble biodegradable organic teeb meem. Nws cov txheej txheem muaj ntau yam, uas tuaj yeem muab faib ua activated sludge method, AB method, A/O method, A2/O Method, SBR method, oxidation ditch method, stabilization pas method, CASS method, land treatment method and other treatment method. Tam sim no, feem ntau cov chaw kho dej hauv nroog tau txais cov txheej txheem activated sludge.
Lub hauv paus ntsiab lus ntawm kev kho kab mob lom yog ua kom tiav cov decomposition ntawm cov organic teeb meem thiab cov synthesis ntawm cov kab mob los ntawm kev ua kom lom, tshwj xeeb tshaj yog kev txiav txim ntawm cov kab mob, thiab hloov cov organic pollutants rau hauv harmless gas (CO2), cov khoom ua kua (dej) thiab organic-nplua nuj khoom. . Cov khoom lag luam (cov pab pawg microbial lossis cov kab mob lom neeg); Cov sludge ntau dhau yog sib cais los ntawm cov khoom thiab cov kua hauv lub tank sedimentation thiab tshem tawm los ntawm cov dej phwj huv huv. tus
03 Kev kho mob Tertiary
Kev kho mob tertiary yog kev kho dej siab tshaj plaws, uas yog cov txheej txheem kho dej khib nyiab tom qab kev kho mob thib ob, thiab yog qhov kev kho siab tshaj plaws rau cov dej phwj tuaj. Tam sim no, tsis muaj ntau qhov chaw kho dej phwj hauv peb lub tebchaws tau muab tso rau hauv daim ntawv thov.
Nws denitrifies thiab dephosphorizes dej tom qab kev kho mob thib ob, tshem tawm cov pa phem hauv dej los ntawm cov pa roj carbon adsorption lossis rov qab osmosis, thiab tua cov kab mob ozone los yog chlorine los tua cov kab mob thiab kab mob, thiab tom qab ntawd xa cov dej kho rau hauv Waterways yog siv los ua cov khoom siv dej rau kev tso dej hauv chav dej, tshuaj tsuag txoj hauv kev, siv dej ntsuab, dej ua haujlwm, thiab kev tiv thaiv hluav taws.
Nws tuaj yeem pom tau tias lub luag haujlwm ntawm cov txheej txheem dej phwj tuaj tsuas yog los ntawm kev hloov pauv biodegradation thiab cov kua dej sib cais, thaum ntxuav cov dej phwj tuaj thiab ua kom cov pa phem rau hauv cov sludge, suav nrog cov sludge thawj tsim nyob rau hauv thawj qhov kev kho mob, cov seem activated sludge. ua nyob rau hauv cov kev kho mob theem nrab thiab cov tshuaj sludge ua nyob rau hauv lub tertiary kev kho mob.
Vim hais tias cov sludges muaj ntau cov organic teeb meem thiab cov kab mob, thiab yog yooj yim corrupted thiab tsw, lawv yog ib qho yooj yim ua rau cov pa phem thib ob, thiab cov hauj lwm ntawm kev tshem tawm cov pa phem tseem tsis tau tiav. Sludge yuav tsum tau muab pov tseg kom zoo los ntawm qee qhov txo ntim, txo ntim, ruaj khov thiab kho tsis raug mob. Kev ua tiav ntawm kev kho sludge thiab pov tseg muaj qhov cuam tshuam tseem ceeb rau cov kav dej phwj tuaj thiab yuav tsum tau ua tib zoo saib xyuas.
Yog tias cov sludge tsis raug kho, cov sludge yuav tsum tau muab tshem tawm nrog cov dej ntws tawm, thiab cov nyhuv purification ntawm cov kav dej phwj yuav raug offset. Yog li ntawd, hauv cov txheej txheem thov tiag tiag, kev kho sludge hauv cov txheej txheem dej phwj tuaj kuj tseem ceeb heev.
04 Deodorization txheej txheem
Ntawm lawv, txoj kev siv lub cev feem ntau suav nrog txoj kev dilution, txoj kev adsorption, thiab lwm yam .; chemical txoj kev muaj xws li txoj kev nqus, combustion method, thiab lwm yam.; da dej lwm yam.
Kev sib raug zoo ntawm kev kho dej thiab kev ntsuas dej zoo
Feem ntau, cov khoom siv ntsuas dej zoo yuav raug siv rau hauv cov txheej txheem ntawm kev kho cov dej khib nyiab, kom peb thiaj li paub txog cov xwm txheej tshwj xeeb ntawm cov dej zoo thiab saib seb nws puas ua tau raws li tus qauv!
Kev ntsuas dej zoo yog qhov yuav tsum tau ua hauv kev kho dej. Raws li qhov xwm txheej tam sim no muaj kev txhawj xeeb, dej ntau thiab siv hauv lub neej thiab kev lag luam, thiab qee qhov dej khib nyiab hauv lub neej thiab cov dej phwj tuaj hauv kev lag luam kuj nce ntxiv. Yog tias cov dej tso tawm ncaj qha yam tsis tau tawm mus, nws yuav tsis tsuas yog ua paug rau ib puag ncig, tab sis kuj ua rau kev puas tsuaj loj rau ecological ib puag ncig. Yog li ntawd, yuav tsum muaj kev paub txog cov dej phwj tuaj thiab kev sim. Cov tuam tsev muaj feem cuam tshuam tau teev cov ntsuas kev tso tawm cuam tshuam rau kev kho dej. Tsuas yog tom qab kuaj thiab lees paub tias cov qauv ua tau raws li lawv tuaj yeem tso tawm. Kev kuaj xyuas cov dej phwj tuaj yeem suav nrog ntau qhov ntsuas, xws li pH, tshem tawm cov khib nyiab, turbidity, tshuaj lom neeg oxygen xav tau (COD), biochemical oxygen xav tau (BOD), tag nrho phosphorus, tag nrho nitrogen, thiab lwm yam. Tsuas yog tom qab kev kho dej tuaj yeem ntsuas tau hauv qab qhov tso tawm. tus qauv tuaj yeem ua kom ntseeg tau cov txiaj ntsig ntawm kev kho dej, kom ua tiav lub hom phiaj ntawm kev tiv thaiv ib puag ncig.
Post lub sij hawm: Jun-09-2023
