Kev kho dej yog ib qho cuab yeej siv los kho thiab ua kom huv dej. Nws tuaj yeem tshem cov khoom tsis zoo los ntawm dej, ua kom muaj kev nyab xeeb thiab huv. Qhov no tsis yog tsuas yog muaj txiaj ntsig zoo rau peb txoj kev noj qab haus huv xwb, tab sis kuj tseem pab kom ib puag ncig muaj kev noj qab haus huv.
Muaj ntau yam txiaj ntsig rau kev kho dej.
Ua ntej, nws tuaj yeem txo cov pa phem hauv dej. Qhov no tau dhau los ua qhov tseem ceeb hauv ntiaj teb vim tias peb cov peev txheej dej tau dhau los zuj zus. Los ntawm kev siv cov txheej txheem kho dej, peb tuaj yeem txo cov khoom tsis zoo hauv dej, txo qis kev puas tsuaj rau ecosystems, thiab muab ntau yam kab mob thiab cov nroj tsuag nrog cov dej huv thiab noj qab haus huv.
Nws kuj tseem tuaj yeem txo cov kev pheej hmoo ntawm kev noj qab haus huv rau tib neeg. Tej zaum yuav muaj ntau yam teeb meem hauv dej, xws li txhuas, tooj liab, nplai, thiab lwm yam tshuaj. Cov tshuaj no ua rau muaj kev hem thawj rau peb txoj kev noj qab haus huv, tshwj xeeb tshaj yog rau menyuam yaus thiab cov neeg laus. Los ntawm kev siv cov txheej txheem kho dej, cov tshuaj phem no tuaj yeem raug tshem tawm, ua rau cov dej haus muaj kev nyab xeeb thiab noj qab haus huv.
Cov txheej txheem kho dej tuaj yeem pab txuag dej thiab. Niaj hnub no, ntau lub cheeb tsam tab tom ntsib teeb meem ntawm cov dej tsis txaus, yog li peb yuav tsum tau ua tib zoo saib xyuas kev txuag dej. Los ntawm kev siv cov txheej txheem kho dej, peb tuaj yeem txo cov kais dej siv thiab khaws cov dej ntau ntxiv rau yav tom ntej.
Vim li cas SiC?
Silicon carbide ultrafiltration membrane, raws li cov khoom siv lim dej zoo, muaj qhov zoo ntawm ntau yam.
High filtering raug
SiC UF daim nyias nyias tuaj yeem ua tiav microfiltration thiab ultrafiltration, tshem tawm cov khoom, cov roj tee, emulsions, thiab tshem tawm cov khib nyiab hauv dej, muab cov txiaj ntsig zoo ua kua pom. Qhov no high-precision filtration muaj peev xwm ua rau lawv muaj dav daim ntawv thov kev cia siab nyob rau hauv cov teb uas yuav tsum tau high-purity kua, xws li biomedicine, zaub mov kev lag luam, thiab lwm yam.
Corrosion kuj thiab kub tsis kam
Silicon carbide cov khoom nws tus kheej muaj kev tiv thaiv corrosion thiab kub tsis kam, uas ua rau SiC ultrafiltration membranes ua haujlwm ruaj khov rau lub sijhawm ntev hauv qhov chaw hnyav. Txawm hais tias nyob rau hauv cov kua qaub muaj zog, muaj zog alkali lossis qhov kub thiab txias ib puag ncig, cov daim nyias nyias tuaj yeem tswj tau lawv cov kev ua haujlwm ruaj khov, yog li ncua kev pab cuam lub neej ntawm cov khoom siv thiab txo cov nqi kho.
Muaj zog hydrophilicity
Nws muaj qhov muaj peev xwm hydrophilicity nrog lub kaum sab xis ntawm tsuas yog 0.3 degree, uas yog qhov zoo rau cov kua permeation thiab pom. Muaj zog hydrophilicity txhais tau hais tias thaum lub sij hawm pom cov txheej txheem, cov kua yuav kis tau los ntawm cov membrane txheej, yog li txhim kho pom efficiency thiab flux.
Zoo heev tshuaj stability
Lawv muaj kev ruaj ntseg zoo heev thiab tuaj yeem ua haujlwm hauv qhov chaw huab cua (pH qhov tseem ceeb ntawm 1 txog 14). Qhov kev ruaj ntseg no ua rau cov membrane tiv thaiv ntau yam tshuaj lom neeg ib puag ncig, xws li kua qaub purification, nano hmoov catalyst rov qab thiab lwm yam mob hnyav rau cov khoom sib cais.
Cov tshuaj ntxuav tu nplua nuj
Ntau yam kev daws teeb meem tuaj yeem tsim los daws ntau hom kev ua qias tuaj. Cov kev daws teeb meem no suav nrog kev siv cov txheej txheem kev tu siab zoo xws li oxidants (xws li ozone thiab hydroxyl radicals) los xyuas kom meej tias cov txheej membrane tuaj yeem rov ua nws qhov kev pom zoo tom qab ntxuav.
Muaj zog muaj kuab paug tsis kam
Lub isoelectric point ntawm silicon carbide daim nyias nyias yog nyob ib ncig ntawm pH 3, thiab nto ntawm zaj duab xis tuaj yeem tswj cov nqi tsis zoo tshaj pH ntau yam, uas txhim kho lub peev xwm tiv thaiv fouling ntawm zaj duab xis nto. Lub zog muaj kuab paug tiv thaiv txhais tau hais tias thaum lub sij hawm pom cov txheej txheem, cov txheej txheem membrane tsis yooj yim thaiv los ntawm cov pa phem, yog li txo qhov zaus ntawm kev tu thiab tu cov nqi.
Siv dav dav
Daim ntawv thov teb ntawm silicon carbide UF daim nyias nyias yog dav heev, nrog rau kev tiv thaiv ib puag ncig, biomedicine, kev lag luam zaub mov, kev lag luam hluav taws xob, kev lag luam tshuaj, lub zog thiab ntau lwm yam. Hauv kev tiv thaiv ib puag ncig, nws tuaj yeem siv rau kev kho dej, huab cua huv, thiab lwm yam; Hauv kev lag luam biomedicine, nws tuaj yeem siv rau kev tsim cov khoom siv roj ntsha, kev sib cais ntawm cov enzymes thiab lwm yam proteins, thiab lwm yam; Hauv kev lag luam khoom noj, nws tuaj yeem siv rau kev nthuav dav thiab pom cov khoom xws li kua txiv hmab txiv ntoo, dej haus, khoom noj siv mis, thiab lwm yam.
Cov hau kev kho cov dej haus luam yeeb
Lub Hoobkas luam yeeb tsim cov dej khib nyiab ua ke nrog cov dej khib nyiab hauv tsev ntawm nws cov neeg ua haujlwm thaum tsim khoom. Tsis tas li ntawd, feem ntau ntawm cov dej khib nyiab tsim tawm thaum tsim khoom muaj cov khoom raug tshem tawm, nicotine, suab thaj, thiab lwm yam khoom. Cov dej khib nyiab no muaj chromaticity siab, ntau hom khoom, thiab ntau dua cov pa phem, ua rau lawv nyuaj rau kev kho; Qhov thib ob, muaj ntau cov dej khib nyiab, thiab kev tsim luam yeeb yog nce ntxiv. Tus nqi ntawm cov dej khib nyiab tsim los ntawm kev tsim luam yeeb kuj nce ntxiv txhua xyoo; Thaum kawg, muaj qhov sib txawv ntawm cov dej zoo. Feem ntau hais lus, cov lag luam luam yeeb tsim ntau hom luam yeeb, thiab cov txheej txheem luam yeeb sib txawv thiab hom flavoring additives kuj sib txawv, uas cuam tshuam rau kev hloov pauv ntawm cov luam yeeb tsim cov dej khib nyiab dej zoo thiab cuam tshuam rau ntau yam txheej txheem ntsig txog kev kho dej khib nyiab. Yog li ntawd, hauv kev kho cov dej haus luam yeeb, kev saib xyuas tshwj xeeb yuav tsum tau them rau cov yam ntxwv ntawm cov dej khib nyiab thiab cov phiaj xwm kev kho mob yuav tsum raug xaiv.
(1) Kev kho lub cev thiab tshuaj lom neeg ntawm cov dej haus luam yeeb
Txoj kev kho lub cev thiab tshuaj muaj xws li coagulation, adsorption, thiab membrane sib cais. Qhov no yog vim hais tias lub Hoobkas luam yeeb tsim evaporation condensate, ntxuav dej, thiab yob ntim cov dej khib nyiab thaum lub sij hawm tsim khoom tshwj xeeb, uas muaj qee cov roj cog lossis cov luam yeeb. Cov khib nyiab muaj biodegradability tsis zoo thiab tsis txaus cov ntsiab lus COD yaj. Yog li ntawd, kev kho lub cev thiab tshuaj lom neeg yog ib txoj hauv kev los kho cov dej khib nyiab. Tam sim no, kev kho lub cev thiab tshuaj lom neeg ntawm cov dej haus luam yeeb yog tsom rau coagulation thiab huab cua flotation.
(2) Kev kho biochemical ntawm cov dej haus luam yeeb
Kev kho biochemical ntawm cov dej khib nyiab feem ntau cuam tshuam nrog kev hloov pauv ntawm colloidal organic pollutants muaj nyob rau hauv cov dej khib nyiab rau hauv cov khoom tsis zoo los ntawm cov txheej txheem lom neeg. Vim yog tus nqi qis thiab kev tswj xyuas yooj yim ntawm kev kho dej khib nyiab, nws tau siv dav. Cov dej khib nyiab tsim los ntawm cov chaw luam yeeb thaum lub sijhawm luam yeeb muaj ntau ntawm cellulose thiab tar, uas muaj cov khoom zoo biochemical. Txoj kev no tuaj yeem xaiv los kho cov dej haus luam yeeb. Tam sim no, ntau lub tsev luam yeeb kho cov dej khib nyiab los ntawm txoj kev biochemical.
(3) Kev kho mob tob tob ntawm cov dej haus luam yeeb
Cov chaw ua luam yeeb yuav tsum tau ntxuav cov nplooj luam yeeb thiab kev cob qhia thaum lub sijhawm tsim khoom, thiab kho cov dej txias hauv boiler. Tom qab cov dej khib nyiab tsim tawm, nws yog siv thiab rov siv dua kom ua tiav lub zog txuag hluav taws xob thiab emission txo cov teebmeem. Tsis tas li ntawd, kev sib sib zog nqus ntawm cov dej khib nyiab tuaj yeem ua tiav los ntawm kev siv tshuab pom kom tau raws li qhov yuav tsum tau ua ntawm cov dej rov qab siv dua, ua kom yooj yim rau kev cog qoob loo thiab kev siv dej.
(4) Kev sib cuag oxidation kev kho mob ntawm cov dej haus luam yeeb
Txoj kev no muaj ib qho me me ntawm cov sludge rov qab ntws, yog li yuav luag tsis muaj qhov tshwm sim sludge o, thiab kev tswj xyuas kuj yooj yim. Txoj kev no nruj me ntsis yuav tsum tau yoog raws hauv cov dej zoo thiab kom muaj nuj nqis, tshwj xeeb tshaj yog tsis haum rau cov xwm txheej uas muaj kev hloov pauv loj hauv cov dej phwj tuaj. Hauv lwm lo lus, txoj kev no tsim nyog rau kev kho cov dej haus luam yeeb nrog cov dej ntim tsawg thiab thaj chaw me me, thiab siv dav hauv kev kho cov dej haus luam yeeb.
(5) Hydrolysis acidification hu rau oxidation ua ke kho cov dej haus luam yeeb
Cov txheej txheem no yog cov cuab yeej siv dav siv rau kev haus luam yeeb dej khib nyiab, uas siv hydrolysis acidification los hydrolyze organic teeb meem los ntawm qhov sib txawv ntawm kev loj hlob ntawm methane tsim cov kab mob thiab cov kua qaub tsim cov kab mob nyob rau hauv qhov kev txiav txim ntawm hydrolysis cov kab mob thiab cov kua qaub tsim cov kab mob, yog li ua tiav qhov kev hloov ntawm insoluble. tshuaj rau cov tshuaj soluble. Tom qab ntawd, nrog kev pab los ntawm kev sib cuag oxidation txheej txheem, cov dej khib nyiab ntws los ntawm qhov chaw ntawm cov khoom siv roj ntsha ruaj khov, txuas cov kab mob los tsim cov biofilm, uas tom qab ntawd adsorbs thiab oxidizes cov pa phem hauv cov dej khib nyiab kom ua tiav kev kho kom huv. Yog li ntawd, kev sib xyaw ntawm hydrolysis acidification thiab kev sib cuag oxidation yog cov txheej txheem dej khib nyiab uas ua ke nrog hydrolysis acidification thiab tiv tauj oxidation.
(6) Membrane bioreactor (MBR) kev kho cov dej haus luam yeeb
Cov cuab yeej siv dej khib nyiab no yog ua los ntawm cov khoom siv sib xyaw ua ke uas sib xyaw ua ke ntawm cov txheej txheem sib cais thiab cov txheej txheem lom neeg los ntxuav cov dej khib nyiab. Los ntawm kev hloov cov sedimentation tank thib ob nrog cov khoom siv sib cais membrane, qhov concentration ntawm activated sludge tuaj yeem ua tau zoo, txo cov sludge load thiab tswj sludge ntau lawm. Piv nrog rau cov tsoos hom ntawm biochemical wastewater kho tshuab, membrane bioreactor muaj ob peb yam ntxwv, namely kev kho mob efficiency thiab zoo effluent zoo; Compact khoom thiab chaw txuag; Yooj yim rau automate tswj thiab ua haujlwm.
(7) Regeneration thiab reuse thev naus laus zis los kho cov dej haus luam yeeb
Rau kev tshawb nrhiav thiab kev tsim cov thev naus laus zis no, peb yuav tsim cov dej khib nyiab rov qab siv dua thiab siv thev naus laus zis nrog rau kev siv thev naus laus zis rov qab osmosis, thiab tsim kom muaj kev kho cov kab mob luam yeeb thiab rov siv cov txheej txheem los ntawm reactors. Cov thev naus laus zis no yog tsim los ntawm kev kho cov dej khib nyiab lom neeg thiab cov tshuab sib cais membrane, uas muaj qhov zoo ntawm kev tswj tus kheej siab thiab kev tswj kom yooj yim. Nws yog siv rau kev kho dej zoo hauv ntau hom chaw, tab sis qhov tsis zoo yog tias cov roj av sib piv yog qhov loj, yuav tsum tau qhia txog lub tswv yim ntawm membrane backwashing thiab xav tau kev txhawb nqa nyiaj txiag ntau.
Cim npe nrov: Tuam Tshoj dej kho qhov system manufacturers, lwm tus neeg, Hoobkas
