Case: 3000t / hnub Municipal Sewage Treatment Project hauv Shimen Town
Reclaimed water reuse yog hais txog kev siv cov dej khib nyiab uas tsim tawm thaum lub sij hawm tsim khoom raws li qhov chaw dej, kho kom zoo kom tshem tawm ntau yam impurities, tshuaj lom thiab teeb meem, hnyav hlau ions thiab lwm yam kuab paug, thiab tshuaj tua kab mob thiab sterilizing nws ua ntej siv. Qhov ntsuas dej zoo ntawm cov dej rov qab tau poob ntawm qib siab thiab qis. Tom qab kev kho mob, cov dej rov qab ua tau raws li cov kev cai hauv lub tebchaws thiab tuaj yeem siv dav hauv kev tsim khoom lag luam lossis chaw nyob hauv lub neej. Nws feem ntau yog siv rau kev ywg dej ntsuab, ntxuav cov chav dej, ntxhua khaub ncaws, thiab lwm yam. Rau cov cheeb tsam uas tsis muaj dej tshiab thiab tsis muaj dej hauv nroog loj, kev siv cov cuab yeej siv dej rov qab tuaj yeem tsis tsuas yog txuag dej xwb tab sis kuj ua rau cov dej phwj tuaj tsis zoo. Nws yog ib txoj hauv kev tseem ceeb los tiv thaiv thiab tswj cov dej qias neeg, thiab tseem yog cov cuab yeej tshiab thiab txheej txheem uas Tuam Tshoj tam sim no thiab yuav tsom mus rau kev txhawb nqa mus ntev.
Ib qho ntawm cov txheej txheem tseem ceeb rau kev rov qab siv cov dej rov qab yog membrane filtration, uas siv ultrafiltration, microfiltration, los yog rov qab osmosis membranes rau kev kho mob. Nws yog qhov tsim nyog rau cov xwm txheej uas muaj kev hloov pauv loj hauv dej zoo. Qhov kom zoo dua ntawm daim nyias nyias yog tias nws muaj SS tshem tawm tus nqi siab thiab hneev taw me dua piv rau kev kho mob thib ob.
Ntawm lawv, silicon carbide ceramic membrane yog ib hom tshiab ntawm cov khoom siv membrane uas tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev kho dej thiab tam sim no yog cov khoom siv membrane tshaj plaws. Nws lub ntsiab zoo yog cov kua qaub thiab alkali tsis kam, hnav tsis kam, corrosion kuj, kub tsis kam, siab throughput, muaj kuab paug tsis kam, thiab lwm yam.
Qhov zoo ntawm silicon carbide ceramic membrane feem ntau suav nrog:
- High membrane flux: Piv nrog alumina ceramic membrane thiab organic membrane, silicon carbide ceramic membrane muaj zog hydrophilicity thiab ntau dua porosity, cia cov flux rau ib chav tsev ntawm silicon carbide ceramic membrane mus txog 3-5 npaug ntawm alumina ceramic membrane thiab 5-10 npaug ntawm cov organic membrane.
- Kev ua tau zoo ntawm kev sib cais: Silicon carbide ceramic membrane tuaj yeem cais cov khoom tshem tawm thiab cov roj tee hauv dej yam tsis muaj kev cuam tshuam los ntawm cov khoom siv dej zoo, uas yog qhov tseem ceeb rau kev txhim kho kev kho dej thiab zoo.
- Ib qho yooj yim los ntxuav: Vim yog qhov tsis zoo hluav taws xob ib puag ncig ntawm qhov chaw ntawm silicon carbide ceramic membranes, lawv tiv taus cov pa phem, thiab nrog cov porosity siab, rov qab ntxuav tau yooj yim dua tshem tawm cov pa phem ntawm daim nyias nyias. Qhov no ua rau kev saib xyuas thiab tu ua haujlwm yooj yim dua hauv kev siv tiag tiag, uas yuav pab kom ntev kev pab cuam lub neej ntawm daim nyias nyias.
- Tus nqi ua tau zoo: Ua ntej, los ntawm kev pom thawj zaug kev nqis peev, silicon carbide ceramic membranes yuav xav tau kev nqis peev ntau dua, tab sis cov kev nqis peev zoo li no tuaj yeem tau txais txiaj ntsig rov qab los ntawm kev ua haujlwm ntev - los ntawm lawv cov kev ua tau zoo. Thib ob, hais txog cov nqi khiav lag luam, vim yog cov khoom siv tshwj xeeb thiab cov txheej txheem tsim khoom ntawm silicon carbide ceramic membrane, nws muaj peev xwm tiv thaiv kev ua qias tuaj thiab tus kheej -tu yam ntxwv. Qhov no txhais tau hais tias thaum lub sijhawm ua haujlwm, silicon carbide ceramic membrane tuaj yeem tswj tau cov dej ntws mus rau lub sijhawm ntev dua yam tsis tas yuav rov qab ua dua. Yog li ntawd, lub voj voog rov qab ntawm silicon carbide ceramic membranes feem ntau yog ntev dua, uas tuaj yeem txo qhov zaus ntawm kev rov qab ntxuav, kev siv hluav taws xob, thiab kev siv tshuaj lom neeg, uas yuav pab txo qis kev ua haujlwm tag nrho. Vim nws cov tshuaj lom neeg ruaj khov zoo heev thiab muaj peev xwm tiv thaiv kev ua qias tuaj, silicon carbide ceramic membranes tuaj yeem tswj tau siab flux thiab tsis tshua muaj siab poob thaum ua haujlwm. Qhov no txhais tau hais tias nyob rau hauv tib lub peev xwm ua tau zoo, lub zog tsav tsheb uas yuav tsum tau muaj rau cov silicon carbide ceramic membrane (xws li lub zog siv hluav taws xob) yog qhov me me, yog li txo qis kev siv zog. Thib peb, nyob rau hauv cov nqe lus ntawm kev saib xyuas cov nqi, silicon carbide ceramic daim nyias nyias muaj lub peev xwm tu kom zoo, uas txhais tau hais tias kev tu thiab tu cov nqi ntawm daim nyias nyias yog qhov tsawg thaum lub sijhawm ua haujlwm. Tsis tas li ntawd, nws lub neej kev pab cuam ntev dua tuaj yeem txo qhov zaus ntawm kev hloov pauv membrane, ntxiv txo cov nqi kho. Yog li ntawd, los ntawm qhov kev xav ntawm lub neej voj voog tus nqi, txawm hais tias silicon carbide ceramic membranes muaj kev nqis peev ntau dua, lawv lub neej ntev thiab kev ua haujlwm siab ua rau lawv cov nqi zoo dua li alumina ceramic membranes thiab organic membranes thoob plaws hauv lub neej.
Hauv kev luv luv, kev kho thiab rov siv cov dej rov qab yog qhov tsawg - carbon, ib puag ncig tus phooj ywg, thiab kev siv nyiaj txiag ntawm kev siv dej, uas tuaj yeem txo qhov teeb meem dej tsis txaus tam sim no thiab tsim lub hauv paus ruaj khov rau kev txhim kho kom ruaj khov. Silicon carbide ceramic membrane, raws li ib qho ntawm cov ntaub ntawv zoo tshaj plaws, muaj kev loj hlob zoo thiab kev siv qhov chaw hauv thaj chaw ntawm cov dej rov qab siv dua.