Sei nanofiltration membranes ichifanira kucheneswa nguva dzose?
Nekuti iyo nanofiltration membrane ichashandiswa kwenguva yakareba mukugadzirisa kwekushandiswa, iyo yakamiswa yakasimba uye kumwe kusvibiswa mumvura kunovharira saizi yepore yesefa membrane pamusoro, zvichiita kuti membrane ivhare, uye kuvharika kwenguva refu kuchaita. ita kuti kugadzirwa kwemvura kuderedze, uye zvinokanganisa nanofiltration membrane element.Kukonzera kukuvara kusingagadzirike.
Inguva yakadii yekuchenesa kutenderera kwenanofiltration membranes?
Kazhinji, kutenderera kwekuchenesa kwenanofiltration membrane kunonyanya kutariswa maererano nekushandiswa kwe membrane element, kazhinji inenge mwedzi mitatu, asi kana kugadzirwa kwemvura kwe membrane element kwadzikira, nanofiltration membrane inofanira kucheneswa nenguva.
Chii chandinofanira kuteerera pakuchenesa nanofiltration membrane?
Shandisa yemhando yepamusoro-oxidant mvura isina yakasara chlorine uye mamwe maoxidants pakutsvaira
Paunenge uchigadzira mhinduro yekuchenesa, ita shuwa kuti makemikari ese ekuchenesa akanyungudika uye akasanganiswa asati apinda muchikamu chechikamu.
Mushure mekunge makemikari ekuchenesa uye membrane zvinhu zvatenderedzwa, membrane zvinhu zvinofanirwa kugezwa nemvura yemhando yepamusoro iyo isina yakasara chlorine uye mamwe maoxidants (minimum tembiricha> 20 ℃).
Tembiricha uye PH kukosha
Munguva yekutenderera kwemhinduro yekuchenesa, kutonhora hakufaniri kudarika 50C pa pH 2-10, kutonhora hakufaniri kudarika 35C pa pH 1-11, uye kutonhora hakufaniri kudarika 30C pa pH 1-12.
Kuyerera kwemvura yekuchenesa
Kune zvikamu zvine dhayamita yakakura kupfuura 6 inches, kuyerera kwemvura yekuchenesa kunofanirwa kunge kwakafanana neyakajairwa kumhanya nzira kudzivirira chikamu kubva kugadzira "telescope" chiitiko, nekuti mhete yekupinza mumudziyo wekumanikidza inongoiswa pa. iyo yakanyanyisa mvura yekupedzisira yemudziyo wekumanikidza.Inokurudzirwawo kubhadhara pfungwa iyi paunenge uchichenesa hurongwa hwezvikamu zviduku.
Nyatsochenesa detergent yasara
Paunenge uchichenesa, teerera kunyatsochenesa mumiririri wekuchenesa akasara mu membrane.Kana iyo yekuchenesa isina kunyatsocheneswa, zviri nyore kwazvo kuunganidza tsvina mu membrane-forming system, uye kunyange kupfupisa hupenyu hwesevhisi ye nanofiltration membrane.Alkaline cleaners ine simba rekuchenesa rakaderera rekubvisa mavara.
Nzira yekuwedzera sei kutenderera kwekuchenesa kwe nanofiltration membranes?
Wedzera pretreatment
Kuwedzera iyo pretreatment maitiro kazhinji ndiyo yakarebesa kushandiswa, uye mvura mbishi inogona kutanga kurapwa kuburikidza nemaitiro akadai seakawanda-media mafirita uye ultrafiltration membranes kuvandudza kunaka kwemvura, izvo zvinogona kunyatso kudzikisa kusvibiswa kwenanofiltration membrane zvinhu.
Wedzera asidhi
Iyo CaCO3 mumvura zhinji yepamusoro uye pasi pevhu inenge yazara.Naizvozvo, nekuwedzera H shizha muasidhi, kemikari yekemikari inogona kuchinjirwa kuruboshwe kuti ichengetedze calcium carbonate mukunyungudika.Hunhu hweasidhi inoshandiswa inofanira kunge iri giredhi rekudya.Munyika dzakawanda uye nharaunda, sulfuric acid iri nyore kushandisa kupfuura hydrochloric acid, asi kune rumwe rutivi, zvinyorwa zve sulfate radicals mumvura ine simba inowedzera.Nekuda kwechiyero che sulfate, dambudziko richava rakakura.
Wedzera antiscaant
Scale inhibitors inogona kushandiswa kudzora carbonate scale, sulfate scale, uye calcium fluoride scale.Panowanzova nemhando nhatu dze scale inhibitors: sodium hexametaphosphate (SHMP), organic phosphate, uye polyacrylate.Inokodzera kudzivirira kuyera kwearuminiyamu isina kunyungudika nesimbi, uye iyo yakakwira molecular uremu polyacrylate inogona kuderedza kuumbwa kweSiO2 kuyera kuburikidza nekuparadzira maitiro.
Wedzera softening resin
Na+z ion inogona kushandiswa kutsiva uye kubvisa zviyero zvakadai seCa2+, Ba2+, uye Sr2+ mumvura.Panguva yekurapa uku, pH yemvura ine simba haizoshanduki.Naizvozvo, hapana kushanda kwe degassing kunodiwa.
Nguva yekutumira: Jun-28-2021