25 mayankho wamba a reverse osmosis membrane technology vuto (Gawo 3)

13. Kodi particle ndi colloid kuipitsa ndi chiyani? Kuyeza bwanji?

Kuipitsidwa kwa tinthu tating'onoting'ono ndi kolloid kumachitika mu reverse osmosis kapena nanofiltration system, kumatha kukhudza kwambiri kapangidwe kamadzi ka membrane ndipo nthawi zina kumachepetsa kuchuluka kwa mchere. The zizindikiro zoyambirira za colloidal fouling ndi kuwonjezeka dongosolo kuthamanga kusiyana, ndi magwero a particles kapena colloids mu nembanemba polowera madzi gwero amasiyana malo ndi malo, nthawi zambiri kuphatikizapo mabakiteriya, sludge, silicon colloidal, chitsulo dzimbiri mankhwala, etc. amachotsedwa bwino mu thanki yowunikira kapena fyuluta yapakatikati. Kuphatikiza apo, ma cationic polymeric dielectrics amathanso kuchitapo kanthu ndi anionic scale inhibitors, ndipo ma precipitates awo amatha kuyipitsa zigawo za membrane. SDI15 imagwiritsidwa ntchito kuwunika chizolowezi choipitsa chotere kapena kuchiza m'madzi. Chonde onani mawu oyamba mwatsatanetsatane m'mitu yoyenera.

14. Kodi nthawi yayitali bwanji yololedwa kutseka popanda kuwotcha makina?

Ngati dongosolo limagwiritsa ntchito zoletsa kukula, pamene kutentha kwa madzi kuli pakati pa 20-38 ℃, zimatenga maola 4; Pafupifupi maola 8 pansi pa 20 ℃; Ngati makinawo sagwiritsa ntchito ma scale inhibitors, zidzatenga tsiku limodzi.

15. Kodi kugwiritsa ntchito mphamvu kwa nembanemba kungachepetse bwanji?

Zinthu zogwiritsira ntchito mphamvu zochepa za nembanemba ndizokwanira, koma ziyenera kudziwidwa kuti kutulutsa kwawo mchere kumakhala kotsika pang'ono poyerekeza ndi zinthu zokhazikika za nembanemba.

Imatha kudutsa momasuka mu nembanemba ya microfiltration, yomwe imagwiritsidwa ntchito kuchotsa mabakiteriya, ma flocs, kapena zolimba zoyimitsidwa (TSS). Kupanikizika komwe kumayendera mbali zonse za membrane ndi 1-3 bar

16.Kodi reverse osmosis madzi angwiro angayambe ndi kuyima pafupipafupi?

Dongosolo la nembanemba limapangidwa kutengera magwiridwe antchito mosalekeza, koma pakugwira ntchito kwenikweni, nthawi zonse pamakhala pafupipafupi koyambira ndi kutseka. Dongosolo la nembanemba likatsekedwa, m'pofunika kugwiritsa ntchito madzi ake opangidwa kapena madzi oyeretsedwa kale kuti azitsuka pang'onopang'ono kuti alowe m'malo mwamadzi omwe amakhala ndi ma sikelo oletsa kuphatikizika kwa nembanemba. Njira ziyeneranso kuchitidwa pofuna kupewa kutayikira kwa madzi mu dongosolo ndi kuyambitsa mpweya, monga ngati chigawocho chikutuluka ndikuuma, kungayambitse kutaya kosasinthika kwa kutuluka kwa madzi. Ngati kutsekedwa kuli kochepera maola 24, palibe chifukwa chochitapo kanthu kuti tipewe kukula kwa tizilombo. Koma ngati nthawi yotseka iposa malamulo omwe ali pamwambawa, madzi oteteza amayenera kugwiritsidwa ntchito posungira dongosolo kapena kuwotcha kwanthawi kwa nembanemba.

17.Kodi mungadziwe bwanji njira yoyika mphete zosindikizira zamadzi amchere pazigawo za membrane?

Mphete yosindikizira yamadzi amchere pa chinthu cha membrane imayenera kukhazikitsidwa kumapeto kwa chinthucho, ndikutsegula komwe kumayang'ana njira yolowera. Pamene chotengera choponderezedwa chadzazidwa ndi madzi, kutsegula kwake (m'mphepete mwa milomo) kudzatsegulanso, kusindikiza kwathunthu kutuluka kwa madzi kuchokera ku nembanemba kupita ku khoma lamkati la chotengera chokakamiza.

18.Kodi kuchotsa silicon m'madzi?

Silikoni m'madzi ilipo m'mitundu iwiri: silikoni yogwira (silicone monomeric) ndi silicon ya colloidal (polysilicon): silikoni ya colloidal ilibe mawonekedwe a ayoni, koma imakhala ndi sikelo yayikulu. Silicon ya Colloidal imatha kulumikizidwa ndi kusefera bwino kwakuthupi, monga reverse osmosis, ndipo zomwe zili m'madzi zimatha kuchepetsedwa kudzera muukadaulo wa coagulation, monga akasinja ofotokozera a coagulation. Komabe, matekinoloje olekanitsa omwe amadalira mawonekedwe a mtengo wa ion, monga ma resin osinthira ma ion ndi njira zopitilira ma electrodeionization (CDI), ali ndi mphamvu zochepa pakuchotsa silicon ya colloidal.

Kukula kwa silicon wolumikizidwa ndi kocheperako kuposa silicon ya colloidal, kotero matekinoloje ambiri osefera thupi monga kumveketsa bwino, kusefera, ndi kuyandama kwa mpweya sangathe kuchotsa silicon yoyendetsedwa. Njira zomwe zimatha kuchotsa silicon yoyendetsedwa bwino zikuphatikizapo reverse osmosis, kusinthana kwa ion, ndi electrodeionization mosalekeza.