Chifukwa chiyani nanofiltration nembanemba ziyenera kutsukidwa nthawi zonse?
Chifukwa nembanemba ya nanofiltration idzagwiritsidwa ntchito kwa nthawi yayitali ikugwiritsidwa ntchito, zolimba zoyimitsidwa ndi zonyansa zina m'madzi zidzatsekereza kukula kwa pore kwa nembanemba ya fyuluta, ndikupangitsa kuti nembanembayo itseke, ndikutsekeka kwanthawi yayitali. kuchititsa kuti madzi achepe, ndipo zidzakhudza nanofiltration membrane element.Kuwononga kosasinthika.
Kodi kuyeretsa kwa nanofiltration nembanemba kumatenga nthawi yayitali bwanji?
Nthawi zambiri, kuyeretsa kwa nembanemba ya nanofiltration kumatsimikiziridwa makamaka ndikugwiritsa ntchito nembanemba, nthawi zambiri pafupifupi miyezi itatu, koma kupanga kwamadzi kwa nembanemba kumachepa, nembanemba ya nanofiltration iyenera kutsukidwa munthawi yake.
Ndiyenera kuyang'ana chiyani poyeretsa nembanemba ya nanofiltration?
Gwiritsani ntchito madzi abwino kwambiri okhala ndi okosijeni opanda klorini otsalira ndi ma oxidants ena powotcha
Pokonzekera njira yoyeretsera, onetsetsani kuti mankhwala onse oyeretsera asungunuka bwino ndikusakanikirana asanalowe gawolo.
Mankhwala otsuka ndi ma membrane azunguliridwa, zinthu za nembanemba ziyenera kutsukidwa ndi madzi apamwamba kwambiri omwe alibe chlorine yotsalira ndi ma oxidants ena (kutentha kosachepera 20 ℃).
Kutentha ndi PH mtengo
Pakuzungulira kwa njira yoyeretsera, kutentha sikuyenera kupitirira 50C pa pH 2-10, kutentha sikuyenera kupitirira 35C pa pH 1-11, ndi kutentha kuyenera kusapitirira 30C pa pH 1-12.
The otaya malangizo a kuyeretsa madzimadzi
Pazigawo zokhala ndi mainchesi akulu kuposa mainchesi 6, njira yoyendetsera madzi oyeretsera iyenera kukhala yofanana ndi momwe ikuyendetsedwera kuti chigawocho chisatulutse chodabwitsa cha "telescope", chifukwa mphete yolowera mu chotengera chopanikizika imangoyikidwa mapeto amadzi okhazikika a chotengera chopondereza.Zimalimbikitsidwanso kumvetsera mfundoyi poyeretsa dongosolo la zigawo zing'onozing'ono.
Tsukani bwino chotsukira chotsalacho
Mukamayeretsa, samalani kuti muyeretse bwino choyeretsa chotsalira mu nembanemba.Ngati chotsukiracho sichimatsukidwa bwino, ndikosavuta kwambiri kudziunjikira dothi pamakina opangira nembanemba, komanso kufupikitsa moyo wautumiki wa nanofiltration nembanemba.Zotsukira zamchere zimakhala ndi mphamvu zochepa zotsuka kuchotsa madontho.
Momwe mungakulitsire kuyeretsa kwa nanofiltration nembanemba?
Wonjezerani chithandizo
Kuchulukitsitsa kwa pretreatment nthawi zambiri kumakhala kotalika kwambiri, ndipo madzi osaphika amatha kuthandizidwa poyambirira kudzera muzosefera zamitundu yambiri ndi ma ultrafiltration membranes kuti apititse patsogolo madzi abwino, omwe amatha kuchepetsa kuipitsidwa kwa nembanemba ya nanofiltration.
Onjezani asidi
The CaCO3 m'madzi ambiri pamwamba ndi pansi pansi pafupifupi kukhuta.Choncho, powonjezera tsamba la H mu asidi, mlingo wa mankhwala ukhoza kusinthidwa kumanzere kuti calcium carbonate ikhale yosungunuka.Ubwino wa asidi wogwiritsidwa ntchito uyenera kukhala wa chakudya.M'mayiko ambiri ndi zigawo, asidi sulfuric ndi yosavuta kugwiritsa ntchito kuposa hydrochloric acid, koma Komano, zili sulfate ankafuna kusintha zinthu mopitirira muyeso madzi amawonjezeka.Ponena za kuchuluka kwa sulphate, vutoli lidzakhala lalikulu.
Onjezani antiscant
Ma Scale inhibitors angagwiritsidwe ntchito kuwongolera sikelo ya carbonate, sulfate scale, ndi calcium fluoride scale.Nthawi zambiri pamakhala mitundu itatu ya ma scale inhibitors: sodium hexametaphosphate (SHMP), organic phosphate, ndi polyacrylate.Ndi oyenera kupewa makulitsidwe a insoluble zotayidwa ndi chitsulo, ndi mkulu maselo kulemera polyacrylate akhoza kuchepetsa mapangidwe SiO2 makulitsidwe mwa kubalalitsidwa kwenikweni.
Onjezerani utomoni wofewa
Na+z ion itha kugwiritsidwa ntchito m'malo ndi kuchotsa masikelo monga Ca2+, Ba2+, ndi Sr2+ m'madzi.Panthawi imeneyi, pH ya madzi okhudzidwa sidzasintha.Choncho, palibe ntchito degassing chofunika.
Nthawi yotumiza: Jun-28-2021