Lub hauv paus rau phau ntawv
Ultrafiltration yog lub siab-driven membrane sib cais tshuab uas siv mis ntau thiab 0.1}. {1}}. {1}}. {1}}.}. Ultrafiltration membranes are usually made of polymer materials such as polyvinylidene fluoride (PVDF), polyethersulfone (PES), etc.
Ultrafiltration system Cheebtsam:
Dej Inlet System: Xws li cov dej tso kua roj, raj xa dej thiab cov khoom siv pretricate.
Ultrafiltration membrane sib dhos: Cov ntu tseem ceeb, suav nrog ultraFiltration membrane plhaub thiab memb keeb kwm.
Cov Dej Tsim Dej: Xws li cov kav dej ntau lawm, tank cia cov dej cia thiab xa khoom.
Tswj system: nrog rau cov ntsuas kub nyaim, tswj hwm lub valve, tswj khoom siv valve thiab tsis siv neeg tswj cov khoom siv.
Caispwash system: suav nrog Backwash twj tso kua mis, Backwash dej tank thiab tshuaj ntxuav cov khoom siv.
Ultrafiltration membrane fouling thiab backwashing
Ultrafiltration membrane fouling yog hais txog qhov tshwm sim uas yog qhov ua kom muaj kuab lom thiab cov hlab ntsha tau them lossis thaiv cov pa phem, ua rau txo qis hauv qhov kev ua tau zoo. Cov kev ua qias tuaj muaj xws li:
Raug tshem tawm tseem ceeb thiab colloids: xws li sediment, hlau thiab manganese oxides, thiab lwm yam.
Cov teeb meem organic: xws li yaj cov roj carbonic (DOC), roj, thiab lwm yam.
Txheeb raws roj ntsha: xws li cov kab mob, algae thiab biofilm, thiab lwm yam.
Tswj system: nrog rau cov ntsuas kub nyaim, tswj hwm lub valve, tswj khoom siv valve thiab tsis siv neeg tswj cov khoom siv.
Inorganic tso: Xws li calcium, magnesium, cov khoom siv cov ceg ntoo cheem txiav nyiaj, thiab lwm yam.
Backwashing txoj ntsiab cai
Backwashing yog cov txheej txheem ntawm kev siv dej ntws rov qab los ntawm ultraFiltration membrane kom tshem cov kuab paug uas txuas nrog rau lub ntsej muag muaj kuab paug, yog li rov qab kho cov membrane Flux. Backwashing suav nrog lub cev backwashing thiab tshuaj lom neeg backwashing.
Cov Khaub Ncaws Hnav: Feem ntau yog siv cov dej ntws ntws ntws tawm kom yaug lub npoo av kom tshem tawm cov kuab paug xoob xoob.
Tshuaj kho cov roj carbonting: Ntxiv cov tshuaj tiv thaiv tshuaj ntxiv xws li acids, alkalis, oxidants, thiab lwm yam mus rau cov pa rov qab los ua kev sib kis.
Los ntawm txhais tes ua haujlwm thiab backwashing ntawm ultrafiltration system
Cov txheej txheem pom
Nyob rau hauv lub xeev lim, thaum dej nyob hauv daim nyias nyias lim mus txog ib qib dej tsawg, pib nqus tsev thiab nkag mus rau cov txheej txheem lim. Kev lim dej suav nrog cov dej nqus dej thiab kho cov dej nqus dej kom paub tseeb tas li muaj kev tso quav ntawm ultraFiltration ntaus ntawv. Txhawm rau kom muaj dej ntws zoo kav dej tsim dej, pas dej ua ke thiab backwashing dej ua si, cov txheej txheem no yuav siv sijhawm ib ntus. Thov tsis txhob pib lub twj tso kua roj backwashing yog tias cov dej pheebswashing tsis tuaj yeem lav. Txhawm rau kom tsis txhob raug tso tawm los ntawm kev ua paug, cov kev ntsuas hauv qab no tuaj yeem ua:
Siv kev txo cov nqi ntws tsawg. Qhov tseeb dej ntau lawm ntawm daim nyias nyias nyob rau theem no yog 1\/2 ntawm cov dej tsim cov dej tsim;
Timed ooleration thaum lub sij hawm ua kom pom kev, lub voj voog Aeration yog {{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}.
Thaum lub sij hawm tag nrho cov txheej txheem kev zam, dej los ntawm daim ntaub nyias nyias pas dej Cov ntsuas ntsuas pom tau suav nrog tab sis tsis txwv rau cov kev nruj kev luam yeeb, particulion teeb meem, codmn, thiab lwm yam.
Backwashing tsuas yog ua thaum tsis muaj qhov sib txawv hauv pas dej los ntawm cov dej ua ke, thiab cov dej ntws rov qab los ntawm cov dej rov qab los ntawm lub pas dej nraub qaum.
Lub lim nrog ib qho precision ntawm 0. 5 hli tau teeb tsa hauv cov dej nraub qaum.
Cov txheej txheem Backwashing yog raws li hauv qab no
Cov dej ultrafiltration yog siv rau backwashing. Lub voj voog Backwashing ntawm daim nyias nyias txoj kab yog {{}} h, thiab backewashing kav 1-3 min. Hauv qab yog ib qho tib lub sijhawm thaum lub sij hawm dej rov qab.
Kauj Ruam 1: Kaw cov dej hauv pas dej valve, lim cov kua hauv qab, thiab tua lub tshuab nqus dej thaum cov kua ntxuav tau mus txog;
Kauj ruam 2: Raws li qhov xwm txheej ntawm kev pib txhuam hniav blower, qhib lub tshuab raj ntawm daim nyias nyias nyias, thiab cov cua ntim ntawm daim nyias nyias nyias Raws li qhov mob ntawm pib lub tawb ris tsho tom qab, qhib lub nraub qaum backwash valve thiab cackwash's memash cov xov hlau nrog 60 ~ 80l \/ m2 \/ h. Lub sijhawm cua tom ntej lub sijhawm yuav kav ntev li 1 txog 3 feeb;
Kauj Ruam 3: Kaw cov cua flushing valve ntawm daim nyias nyias pas dej thiab kaw lub hauv paus backwashing;
Kauj Ruam 4: Qhib lub pas dej ntws, thiab tom qab daim nyias nyias pas tau drained cov qauv dej tsim, kaw lub qhov dej valve;
Kauj Ruam 5: Qhib daim ntaub ntiav pas dej hauv dej valve, thiab tom qab ncav tes ua kom lim dej ntau, lub tshuab nqus dej, pib nkag mus rau txheej txheem pom.
Ceev faj rau backwashing ntawm ultrafiltration membrane
Backwash dej zoo: Backwash Dej yuav tsum tsis muaj kuab paug kom tsis txhob muaj kuab paug ntawm ultrafiltration membrane. Feem ntau yog tsim dej los yog cov dej kho tau siv.
Cupwash zaus: Lub caij Backwash tau txiav txim siab raws li kev ua haujlwm tiag tiag, feem ntau {{{}}}}}}}}}}}}}}}}}}}}}}}}}}
Backwash zog thiab lub sijhawm: Cov dej nraub qaum dej ntws thiab cov roj hmab rov qab yuav tsum tsim nyog kom ntseeg tau tias muaj kuab paug thaum tsis txhob muaj kev puas tsuaj rau daim nyias nyias. Feem ntau, lub cev rov qab lub cev yog {{}}} feeb, thiab cov tshuaj tua hluav taws me me yog {}}} feeb.
Kev xaiv tshuaj xyuas kev xaiv thiab kev xaiv: Xaiv cov neeg sawv cev thiab cov tshuaj uas tsim nyog kom ntseeg tau cov pa paug tsis muaj kev ua kom cov khoom ua paug. Cov concentration ntawm tshuaj ntxuav cov tshuaj tua kab mob rov qab yog feem ntau ntawm 0. {}}}%.
Tswj kub: Lub taub dej txias ntxiv yog qhov nruab nrab, feem ntau ntawm 20-40 degree. Qhov siab dhau los lossis qis dhau qhov kub yuav cuam tshuam rau cov txiaj ntsig tom qab thiab lub neej.
Daim ntawv thov ntawm ultrafiltration membrane
Kev Kho Mob Dej
Ultrafiltration technology yog dav siv los tshem tawm cov teeb meem ncua, colloids thiab cov kab mob me thiab cov kab mob me hauv cov nroj tsuag cov khoom haus. Cov kev ua haujlwm tsis tu ncua tuaj yeem ua haujlwm ntev kev ua haujlwm ntev ntawm ultrafiltration membrane thiab paub meej tias qhov zoo ntawm cov khoom dej. Los ntawm kev ua kom rov qab lub cev nrog cov tshuaj ntxuav tes ua ke nrog cov tshuaj ntxuav cov tshuaj ntxuav ua ke, tsis muaj kev phom sij tau tshem tawm thiab kev pabcuam lub neej ntawm daim nyias nyias tuaj yeem txuas ntxiv.
Kev Kho Mob Dej
Hauv kev kho dej dej, xws li cov khoom siv hluav taws xob, tshuaj thiab kev lag luam siv tshuab thiab khoom noj khoom haus, cov khoom noj khoom haus cov khoom siv me me los xyuas kom cov dej zoo. Cov thev naus laus zis yog qhov tseem ceeb tshwj xeeb hauv cov ntawv thov no, uas tuaj yeem tswj cov kev siv tau zoo thiab muaj peev xwm ua kom muaj kev ua tau zoo ntxiv.
Kev Kho Mob Tso Kho Kom Zoo
Hauv kev kho dej huv, ultraratration thev naus laus zis yog siv los tshem tawm cov teeb meem uas tsis txaus ntseeg thiab cov pa phem nyob hauv cov dej qias neeg. Cov thev naus laus zis siv tau zoo tshem tawm cov kuab paug uas txuas rau ntawm ultraFiltration membrane, thiab xyuas kom meej tias kev kho kom dej paug ua tau raws li kev tshem tawm lossis rov kho dua cov qauv.