Hauv kev lag luam kev kho dej khib nyiab, "khoom-kua sib cais"yog ib kauj ruam tseem ceeb uas txiav txim siab txog kev ua tiav ntawm cov theem tom ntej kho thiab qhov zoo ntawm qhov kawg effluent. Tau ntsib nrog cov txheej txheem nyuaj, qhov kev xaiv raug ntawm cov khoom siv -kua sib cais tshuab yog lub hauv paus ntawm txoj haujlwm ua tiav. Ntawm cov kev xaiv muaj,Dissolved Cua Flotation(DAF)thiabtsoos sedimentation tanks, raws li ob lub ntsiab thev naus laus zis, feem ntau nthuav tawm qhov teeb meem rau cov kws ua haujlwm. Kab lus no yuav muab ib qho hauv - tsom xam qhov tob los ntawm ntau qhov ntev kom paub meej cov txheej txheem xav.
► I. Cov Ntsiab Cai Qhov txawv: Active vs. Passive
Qhov sib txawv tseem ceeb ntawm ob lub thev naus laus zis yog nyob rau hauv lub zog uas lawv siv.
► Tsob Ntoo Tsob Ntoo Tsob Ntoo
Qhov no yogib tug passive txheej txheemuas tso siab rau lub ntiajteb txawj nqus.Nws muab ib qho chaw zoo nkauj rau lub cev dej, tso cai rau cov khib nyiab uas muaj qhov ntom ntom ntau dua li dej kom maj mam kho koj.nd lawv tus kheej qhov hnyav, yog li ua tiav kev sib cais.Cov txheej txheem no kuj qeeb thiab raug cuam tshuam los ntawm ntau yam xws li dej kub thiab dej hloov pauv.
► Dissolved Cua Flotation
Qhov no yogib qho active, txhim khu kev sib cais technology.Nws siv lub tshuab hluav taws xob ua kom lub zog ua kom muaj zog ntau ntawm micro- nplai npuas hauv dej. These bubbles actively attach to suspended particles whose densities are close to, or even slightly greater than, that of water, forming a buoyant body with an overall density less than water. Qhov no ua rau cov khoom tawg sai sai rau saum npoo.Flotation thiab sedimentation- ib qho nce mus rau pem hauv ntej, lwm qhov downward - sawv cev rau ob qho kev xav sib txawv ntawm kev siv thev naus laus zis.
► II. Kev Sib Piv Kev Ua Haujlwm: Kev Lag Luam - tawm ntawm Kev Ua Tau Zoo thiab Chaw
Thaum ob lub thev naus laus zis sib piv ib sab ntawm ib sab, lawv qhov sib txawv ua qhov tseem ceeb.
► Kev Kho Kom Zoo Thiab Kev Kho Kom Zoo
Rau lub teeb tshem tawm cov khib nyiab xws li roj, cov khoom siv emulsified, cov fibers zoo, lossis qis -flocs ntom ntom, cov tso tsheb hlau luam tawm tsis zoo. Nyob rau hauv sib piv, lub yaj huab cua flotation technology qhia superior tshem tawm kev ua tau zoo. Nws tuaj yeem ntes tau cov pa phem uas nyuaj rau kev daws teeb meem, ua rau muaj txiaj ntsig zoo dua thiab ruaj khov.
► Hneev taw thiab Flexibility
Vim nws cov txheej txheem sib cais nrawm thiab nrawm, DAF system muaj lub sijhawm luv luv hydraulic, thiab nws cov hneev taw yog feem ntau me dua li ntawm lub tank sedimentation tsim rau tib lub peev xwm kho. Qhov no ua rau nws zoo tagnrho compact water wastewater kho tshuab, tshwj xeeb tshaj yog haum rau cov nroj tsuag uas tsis muaj peev txheej av los yog rau retrofit tej yaam num ntawm cov chaw uas twb muaj lawm. Tsis tas li ntawd, lub kaw lus DAF tuaj yeem pib thiab kaw sai, tso cai rau nws hloov pauv mus rau qhov hloov pauv ntawm cov dej ntws thiab dej tsis zoo, thiab nws muaj qhov muaj zog tiv thaiv kev poob siab.
► Sludge (Scum) yam ntxwv
Cov khib nyiab tsim los ntawm DAF muaj cov ntsiab lus siab dua thiab txo qhov ntim ntau. Qhov no ncaj qha txo tus nqi thiab qhov nyuaj ntawm cov sludge dewatering thiab pov tseg tom qab, nqa cov txiaj ntsig kev lag luam ntev ntev rau kev lag luam.
► BAB III. Scenario-Kev xaiv tsav
Kev sib tham ntawm DAF vs. sedimentation tso tsheb hlau luam yuav tsum thaum kawg rov qab mus rau qhov tshwj xeeb daim ntawv thov scenarios.
Sedimentation tso tsheb hlau luam tseem muaj lawv daim ntawv thov tus nqi thaum kho tau yooj yim nyob rau hauv inorganic hais (xws li xuab zeb thiab grit nyob rau hauv cov dej khib nyiab), thiab nyob rau hauv tej yam kev mob qhov chaw qhov chaw tsis txwv thiab peev nyiaj txiag nruj heev.
Txawm li cas los xij,Nyob rau hauv niaj hnub kev lag luam ntau lawm, tshwj xeeb tshaj yog nyob rau hauv cov sectors xws li zaub mov, petrochemicals, textile dyeing, thiab papermaking, uas ua rau kom muaj nuj nqis ntawm lub teeb thiab emulsified kua paug, DAF yog undoubtedly qhov ntau npaum thiab compact pretreatment tov.Thaum ua qhov kev ntsuam xyuas dav dav ntawm qhov zoo thiab qhov tsis zoo ntawm DAF, nws qhov zoo hauvefficiencythiabhneev tawfeem ntau tshaj qhov kev txiav txim siab txog nws lub zog siv. Hauv ntau Taihe Environmental Protection's tej yaam num, peb lub siab -kev ua tau zoo yaj huab cua flotation tshuab tsis tsuas yog ua kom cov dej ntws zoo xwb tab sis kuj muab cov kev muaj txiaj ntsig zoo rau cov chav kho mob tom ntej, xws liindustrial ultrafiltration system, zoo ncua kev pab cuam lub neej ntawm membrane ntsiab. Kev ruaj khov thiab txhim khu kev qha pretreatment pem hauv ntej-kawg yog qhov tseem ceeb tshwj xeeb rau cov khoom tseem ceeb xws li ceramic ultrafiltration membrane.
Nyob rau hauv xaus, txawm hais tias cov tsoos sedimentation tso tsheb hlau luam tseem ua lub luag hauj lwm nyob rau hauv tej niches, yaj huab cua flotation technology, los ntawm kev tsim txiaj ntawm nws cov high efficiency, compactness, thiab yooj, tau dhau los ua lub ntsiab thiab yav tom ntej kev taw qhia rau niaj hnub industrial wastewater pretreatment. Nws tsis yog ib qho khoom siv kho mob nkaus xwb, tab sis yog ib qho tseem ceeb los txhim kho kev ua tau zoo ntawm tag nrho cov dej khib nyiab kho thiab ua tiav kev tswj xyuas hnyav.