Kev siv hluav taws xob cua sov Tube Membrane Technology hauv kev kho dej phwj thiab rov siv dua

Kev siv hluav taws xob cua sov Tube Membrane Technology hauv kev kho dej phwj thiab rov siv dua

Kev tshawb fawb tau pom tias cov tshuab membrane yog cov cuab yeej tsim nyog tshaj plaws rau kev siv cov dej khib nyiab thiab rov siv dua, thiab cov tshuab membrane yuav yog cov cuab yeej zoo tshaj plaws rau kev kho cov dej khib nyiab.

Nws qhov zoo dua yog tias nws tuaj yeem yuav luag tag nrho tshem tawm SS, cov kab mob dav dav, kab mob, coliform, thiab lwm yam, thiab decolorize kom txo cov tiam ntawm precursors ntawm trichloromethane (THM). Lub effluent quality yog zoo heev. Vim tias qhov chaw nyob ntawm cov khoom siv membrane me me, nws yog qhov tshwj xeeb tshaj yog tsim rau kev tsim kho thiab kho dua tshiab ntawm cov nroj tsuag qub lossis nyob rau hauv cov xwm txheej ntawm qhov chaw txwv rau kev tsim kho cog.

Hauv kev kho thiab rov siv cov dej phwj hauv nroog, cov txheej txheem membrane feem ntau siv rau hauv kev kho mob siab tom qab kev kho mob thib ob, thiab microfiltration (MF) thiab ultrafiltration (UF) feem ntau siv los hloov cov sedimentation, pom, adsorption, sterilization thiab lwm yam kev kho mob hauv cov pa. Kev kho mob siab heev, thiab nanofiltration membrane (NF) thiab rov qab osmosis (RO) yog siv rau cov dej softening thiab desalination. Hauv kev rov qab siv cov dej rov qab, cov membrane bioreactors muaj li ntawm MF, UF, thiab activated sludge yog tam sim no feem ntau siv.

Cov dej khib nyiab hauv kev lag luam sib txawv, thiab lub hom phiaj ntawm kev rov siv dua kuj txawv. Daim ntawv thov ntawm membrane technology kuj muaj ntau haiv neeg. Txawm li cas los xij, tsis hais txog hom kev kho dej khib nyiab, kev siv tshuab membrane yuav tsum muaj kev sib raug zoo nrog lwm cov thev naus laus zis los ua nws lub luag haujlwm. Vim muaj cov dej phwj tuaj ntau heev, cov hom phiaj siv rov qab sib txawv xav tau cov qauv dej zoo sib txawv thiab cov txheej txheem kho, thiab ib qho kev kho dej ib leeg yog ib qho nyuaj rau kev ua kom tau raws li cov dej zoo rau kev rov siv dua.

Nws feem ntau ntseeg tias MF tuaj yeem tshem tawm cov kab mob, kab mob, cov qe kab, thiab cov kab mob los ntawm cov dej khib nyiab, thaum UF tuaj yeem tshem tawm cov macromolecules xws li cov proteins, humic acids, thiab qee yam precursors thiab dyes uas tsim THM los ntawm cov dej khib nyiab. Cov ntsev yaj thiab feem ntau ntawm cov ions hauv dej phwj kho nrog MF thiab UF tseem nyuaj rau tshem tawm, thiab cov khoom no yuav tsum tau muab tshem tawm los ntawm RO daim nyias nyias. Tom qab kev kho RO, cov dej ntws thib ob tuaj yeem ua tau raws li tus qauv dej haus, nrog rau qhov desalination ntau dua 90 feem pua, cov dej rov qab ntau dua 75 feem pua, thiab kev tshem tawm ntau dua 85 feem pua ​​​​rau COD thiab BOD. Txawm li cas los xij, RO yuav tsum tau ua haujlwm nyob rau hauv siab thiab ua rau cov nqi siab. Yav dhau los, MF thiab ultrafiltration membranes feem ntau siv hauv kev kho dej phwj tuaj. NF membrane tsim nyob rau hauv xyoo tas los no tuaj yeem cuam tshuam qhov hnyav molecular, divalent, thiab siab valent ions nrog tus txheeb ze molecular hnyav dua 200, thiab muaj qhov tsis txaus siab rau monovalent ions. Yog li ntawd, nws tuaj yeem ua haujlwm ntawm qhov qis qis nrog cov dej permeability siab thiab cov nqi khiav haujlwm tsawg. Hauv kev kho cov dej phwj tuaj, nws tuaj yeem tshem tawm tag nrho cov kab mob, kab mob, tshuaj tua kab, surfactants, thiab precursors ntawm trichloromethane, Cov tshuaj no yuav hnov ​​​​mob nrog chlorine hauv dej (xws li ntxiv chlorine thaum ua kom tsis muaj menyuam) los tsim cov carcinogen xws li THM. Txij li thaum feem ntau ntawm cov precursors no tsis tshua muaj molecular organic tshuaj, nws yog ib qhov nyuaj rau tshem tawm lawv cov pa kev kho mob technology, MF thiab UF. NF tuaj yeem tshem tawm ntau dua 90 feem pua ​​​​ntawm cov pa roj carbon monoxide thiab THM precursors, 2/3 ntawm salinity thiab 4/5 ntawm hardness nyob rau hauv lwm yam effluent, Cov effluent ua tau raws li cov pa phem raws li txoj cai ntawm Safe Drinking Water Act of 1986 hauv Tebchaws Meskas.

Electrodialysis ntawm charged membrane yog txheej txheem membrane nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb quab yuam, uas feem ntau yog siv rau kev kho thiab rov siv cov dej khib nyiab, xws li kev sib cais thiab rov siv cov ions raug nqi xws li hlau ions hauv electroplating dej khib nyiab.

Cov tshuab ua kua membrane tau siv rau ntawm qhov ntsuas ntsuas hauv kev kho cov dej khib nyiab phenolic vim nws lub peev xwm los txhawb kev hloov pauv huab cua los ntawm cov tshuaj tiv thaiv, kev hloov pauv ceev ceev, thiab kev sib cais siab.

Lub membrane bioreactor (MBR), uas sib txuas cov membrane sib cais (feem ntau yog MF thiab UF, tab sis kuj tseem muaj txiaj ntsig NF) nrog cov tshuaj lom neeg lom neeg, feem ntau yog siv rau hauv kev kho dej phwj los ntawm cov txheej txheem membrane sib cais activated sludge, uas hloov cov theem nrab sedimentation tank nrog lub ntiajteb txawj nqus sib cais. nyob rau hauv cov pa activated sludge. Nws muaj qhov zoo ntawm compact installation thiab zoo effluent zoo.

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