Membrane cov ntaub ntawv thiab modules yog lub hauv paus ntawm daim ntawv thov kev siv tshuab.
Lub hauv paus ntawm daim nyias nyias-raws li kev kho dej yog cov khoom siv, ua raws li cov qauv tsim ntawm cov txheej txheem membrane, thiab tom qab ntawd membrane daim ntawv thov tshuab.
Organic membrane cov khoom tau hloov los ntawm thawj PP (polypropylene), PAN (polyacrylonitrile), thiab PVC (polyvinyl chloride) mus rau PS (polysulfone), PES (polyethersulfone), PVDF (polyvinylidene fluoride), thiab tsis ntev los no, PTFE (polytetrafluoroethylene}) daim nyias nyias, nrog rau cov khoom siv fiber ntau {0C. uas tshwm sim ob peb xyoos dhau los.
Inorganic membrane cov khoom tau hloov zuj zus los ntawm ib txwm Al2O3 (aluminium oxide), ZrO2 (zirconia), thiab TiO2 (titanium dioxide) rau SiC (silicon carbide).
Cov khoom siv zoo tshaj plaws, qhov tseem ceeb tshaj qhov zoo hauv kev ua haujlwm, kev ua haujlwm, kev tu, tu, thiab kev pabcuam lub neej ntawm ib cheeb tsam membrane.
Cov ntaub ntawv txhawb nqa qhov iteration thiab evolution ntawm cov khoom sib cais membrane, thaum cov qauv ntawm cov membrane modules tseem innovate thiab tawg. Cov ciam teb ntawm cov organic thiab inorganic membrane daim ntawv thov scenarios tau dhau los ua qhov muag plooj.
Cia peb pib tham txog cov khoom sib txawv ntawm cov organic membranes.
Cov khoom siv ntau tshaj plaws ntawm submerged ultrafiltration membranes muaj xws li: ntaub thaiv npog, submerged kem daim nyias nyias, thiab cov ntawv tiaj tus.
Ntawm cov uas muaj cov qauv txheej txheem tshiab, cov uas kuv tau pom muaj xws li: KOCH's seaweed- hom membranes, Shanghai Seewo's tubular flat sheet membranes, Huzhou Dingtai's flexible sheet membranes, Shanghai Shiputai's flexible sheet membranes, thiab Huber VRM rotating submerged ultrafiltration membranes. Cov no yog cov sawv cev heev.
Submerged inorganic daim nyias nyias yog feem ntau tiaj daim nyias nyias, nrog rau kev zam xws li rotating ceramic membranes (tseem ceeb hais lus, zoo siab tsav ceramic membranes), uas kuj yog cov ntaub ntawv tiaj tus. Muaj ob peb lub tuam txhab tsim khoom tsim hluav taws xob sib hloov, suav nrog Nanjing Shenluo, Chongqing Wudun, Anhui Mingchuang New Materials Co., Ltd., thiab Feichao Technology.
Submerged inorganic membrane modules kuj muaj qhov sib txawv optimized thiab tshiab versions.
Cov ntsiab lus tseem ceeb ntawm membrane module structural tsim yog:
1. Ntim ceev
2. Hydraulic faib
3. Kev npaj cov kav dej
Tag nrho cov txheej txheem membrane cov qauv tsim tsim kom sib npaug ntawm cov ntim ntom ntom thiab cov khoom siv hydraulic kom ua kom cov permeate efficiency thiab ua haujlwm ruaj khov.
Hlau thav duab yog cov feem ntau ntawm cov tsoos ceramic ca -cov ntawv membrane modules. Membrane cov ntsiab lus tuaj yeem kho tom qab (txhua lub hauv paus membrane muaj qhov permeate nozzle ntawm ob qho kawg) lossis longitudinally (txhua lub ntsiab lus membrane muaj qhov permeate nozzle ntawm ib kawg). Ib daim nyias nyias nyias tuaj yeem ua me me li 1000mm × 250mm × 6mm (ntev × dav × qhov siab), nrog rau ib lub caij ntsuas 0.5 square meters.
Txawm li cas los xij, qhov loj dua qhov loj ntawm ib daim nyias nyias nyias, qhov kev sib tshuam ntawm cov khoom siv membrane zoo dua. Qhov chaw ntawm daim nyias nyias nyob ze ntawm lub permeate nozzle yuav muaj kev ua haujlwm zoo dua li lwm qhov chaw. Ib yam li ntawd, thaum lub sij hawm thim rov qab, flux rov qab los kuj tseem muaj teeb meem tib yam. Txoj kev daws teeb meem yog tsim kom muaj cov kab permeate ntau dua, xws li cov tubular hom hauv cov organic membrane modules thiab cov txheej txheem hauv nruab nrab ntawm cov ntaub ntawv hloov tau yooj yim. Qhov teeb meem no tseem muaj nyob rau hauv hlau -framed membrane modules.
Yas thav duab tsuas yog maj mam tau txais kev nyiam nyob rau xyoo tas los no. Qhov loj me ntawm ib daim nyias nyias yog 600mm × 145mm × 6mm (ntev × dav × qhov siab), nrog rau qhov pom zoo ntawm 0.177 square meters. CERAFILTEC (ib lub tuam txhab German) yog tus thawj coj hauv kev txhawb nqa tag nrho -cov yas thav duab hauv kev lag luam, thiab nws cov qauv tsim yog qhov txawv heev. "daim phiaj" tsim tau zoo kawg nkaus faib txhua daim nyias nyias rau hauv plaub ntu thaum lub sij hawm permeate thiab backwashing txheej txheem, xyuas kom meej symmetrical permeate ntws raws thiab ib tug heev uniform hydraulic faib rau txhua daim nyias nyias. Tsis tas li ntawd, cov ceg ntu ntawm cov kav dej permeate tau sib xyaw ua ke hauv cov txheej txheem membrane, thiab tag nrho cov kav dej loj (permeate main pipe, backwash main pipe) yog txuas rau saum lub membrane ntauwd, simplifying installation thiab txo qhov chaw yuav tsum tau.
Txawm hais tias los ntawm cov khoom pom los yog los ntawm kev pom ntawm daim nyias nyias cov qauv tsim, silicon carbide ca daim nyias nyias muaj qhov zoo ntawm daim ntawv thov kev siv tshuab. Lawv tau npaj kom ci ntsa iab hauv MBR daim ntawv thov teb.