Hauv kev ua liaj ua teb thiab cov khoom siv sab nrauv, cawv, vinegar thiab soy sauce yog fermented los ntawm cov hmoov txhuv nplej siab, ntawm cov nplej.Kev pom ntawm cov khoom no yog cov txheej txheem tsim khoom tseem ceeb, thiab qhov zoo ntawm kev pom ncaj qha cuam tshuam rau qhov zoo ntawm cov khoom.Cov txheej txheem filtration xws li natural sedimentation, active adsorption, diatomite filtration, phaj thiab thav duab pom, thiab lwm yam. Cov kev pom zoo no muaj qee qhov teeb meem nyob rau hauv ntau qib ntawm lub sij hawm, kev khiav hauj lwm, kev tiv thaiv ib puag ncig thiab lwm yam, yog li nws yog ib qho tsim nyog yuav tau xaiv ib qho kev pom ntau dua. txoj kev.
Hollow fiber tuaj yeem cuam tshuam cov khoom loj molecular thiab impurities ntawm 0.002 ~ 0.1μm, thiab tso cai rau cov khoom me me molecular thiab yaj cov khib nyiab (inorganic ntsev) dhau mus, kom cov kua lim dej tuaj yeem khaws nws cov xim qub, aroma thiab saj, thiab ua tiav lub hom phiaj. ntawm tshav kub tsis muaj sterilization.Yog li ntawd, siv hollow fiber lim los lim cawv, vinegar, soy sauce yog ib txoj kev lim dej ntau dua.
Polyethersulfone (PES) tau raug xaiv los ua cov khoom siv membrane, thiab hollow fiber ultrafiltration membrane ua los ntawm cov khoom siv no muaj cov khoom siv tshuaj lom neeg, tiv taus chlorinated hydrocarbons, ketones, acids thiab lwm yam organic solvents, thiab ruaj khov rau acids, bases, aliphatic hydrocarbons, roj. , cawv thiab lwm yam.Zoo thermal stability, zoo tsis kam mus rau chav dej thiab superhot dej (150 ~ 160 ℃), ceev ceev tus nqi, siab mechanical zog.Lub lim membrane yog ib qho yooj yim los ntxuav nrog lub siab hollow fiber membrane, thiab lub plhaub membrane, yeeb nkab thiab valve yog ua los ntawm 304 stainless hlau, uas yog huv si thiab yooj yim los ntxuav.
Rau caw, vinegar, soy sauce yog ntau yam amino acids, organic acids, qab zib, vitamins, organic khoom xws li cawv thiab ester thiab dej sib tov, thiab siv cov txheej txheem cross-flow filtration, los ntawm lub twj tso kua mis yuav tsum tau lim cov. cov kav dej ua kua rau hauv cov ntawv lim dej, cov membrane lim dej rau cov khoom tiav, tsis yog los ntawm cov kua mus rau cov yeeb nkab concentrate kom rov qab mus rau qhov qub.
Vim yog qhov tso tawm ntawm cov kua concentrated, lub zog shear loj tuaj yeem tsim nyob rau saum npoo ntawm daim nyias nyias, yog li txo cov pa phem ntawm daim nyias nyias.Qhov sib piv ntawm cov dej ntws ntawm cov kua concentrated mus rau qhov ntws ntawm cov khoom tiav tuaj yeem hloov kho raws li qhov xwm txheej tshwj xeeb ntawm cov kua lim dej kom txo tau cov kab mob sib kis, thiab cov kua concentrated tuaj yeem rov qab mus rau nws qhov chaw qub thiab rov qab los. - nkag mus rau ultrafiltration system rau kev lim dej.
3 Kev Tu Qhov System
Lub tshuab ntxuav ntawm hollow fiber yog ib qho tseem ceeb ntawm cov lim dej, vim hais tias qhov saum npoo ntawm daim nyias nyias yuav raug them los ntawm ntau yam impurities daig, thiab txawm tias lub qhov membrane yuav raug thaiv los ntawm cov impurities zoo, uas yuav degrade qhov kev sib cais, yog li nws yog. tsim nyog yuav tsum tau ntxuav cov membrane hauv lub sijhawm.
Lub hauv paus ntsiab lus ntawm kev ntxuav yog tias cov kua ntxuav (feem ntau yog lim dej huv) yog cov khoom siv rov qab los ntawm lub twj tso kua mis los ntawm lub raj xa mus rau hauv lub hollow fiber filtration membrane los ntxuav cov impurities ntawm phab ntsa membrane, thiab cov kua khib nyiab tawm ntawm cov khib nyiab pov tseg. cov kav dej.Lub tshuab ntxuav ntawm lub lim tuaj yeem ntxuav tau zoo thiab tsis zoo.
Kev ntxuav zoo (xws li dej ntws tawm) txoj kev tshwj xeeb yog kaw lub qhov hluav taws xob qhov hluav taws xob, qhib lub qhov hluav taws xob lub qhov dej, lub twj tso kua mis yuav pib tsim cov kua dej hauv lub cev, qhov kev txiav txim no ua rau hollow fiber ntau sab hauv thiab sab nraud siab ntawm ob sab sib npaug, lub siab sib txawv. adhesion nyob rau hauv xoob av nyob rau saum npoo ntawm daim nyias nyias, nce tsheb rov qab ntxuav, mos zaj duab xis nyob rau saum npoo ntawm ib tug loj tus naj npawb ntawm impurities yuav raug tshem tawm.
Backwash (rov qab yaug), txoj hauv kev tshwj xeeb yog kaw lub qhov hluav taws xob qhov hluav taws xob, qhib tag nrho cov dej khib nyiab qhov hluav taws xob, qhib lub tshuab ntxuav, pib lub twj tso kua mis tu, cov kua ntxuav hauv lub cev, tshem tawm cov impurities hauv cov phab ntsa ntawm lub qhov. .Thaum rov qab ntxuav, yuav tsum tau them nyiaj mloog mus rau kev tswj ntawm kev ntxuav lub siab, backwashing siab yuav tsum tsawg tshaj li 0.2mpa, txwv tsis pub nws yog ib qho yooj yim rau tawg zaj duab xis los yog ua kom puas lub bonding nto ntawm hollow fiber thiab binder thiab daim ntawv to.
Txawm hais tias tsis tu ncua zoo thiab rov qab ntxuav tuaj yeem tswj xyuas cov txheej txheem lim dej kom zoo, nrog rau kev txuas ntxiv ntawm lub sijhawm ua haujlwm ntawm daim nyias nyias, cov pa phem ntawm daim nyias nyias yuav dhau los ua hnyav dua, thiab cov membrane pom ceev kuj yuav txo.Yuav kom rov qab tau cov membrane filtration flux, lub membrane module yuav tsum tau ntxuav chemically.Kev ntxuav tshuaj feem ntau yog ua nrog kua qaub ua ntej thiab tom qab ntawd alkali.Feem ntau, 2% citric acid yog siv nyob rau hauv pickling, thiab 1% ~ 2% NaOH yog siv nyob rau hauv alkali ntxuav.
Post lub sij hawm: Aug-06-2021