Ukunyanga amanzi amdaka kwimijelo ukuze aphinde asetyenziswe okanye alahlwe - ngakumbi ezo zingcoliswe ngamachiza, i-oyile, igrisi, okanye izinto ezenziwe nge-emulsified - kunokuba nzima kakhulu ngokubhekiselele ekusebenzeni kakuhle kunye neendleko. Ngombulelo, ii-membrane ezintsha zokuhluza zilungisa le mingeni. Nantsi indlela iingcali zokunyanga amanzi kwimizi-mveliso axhamla ngayo kubuchwephesha obutsha bokuLawula ukuFaka kwi-RO yokwenziwa kwenwebu.
Ubume bomzimba bezi membrane ezichasene nokungcola ngomnye womahluko wabo obalulekileyo. Iimbumba zesiseko ezihlanganisiweyo ziquka i-porosity ye-75%, i-hydrophobic polymer matrix egxotha amanzi, kunye ne-hydrophilic inorganic filler edonsa amanzi nge-membrane, inika amandla e-capillary anikezela ngokuguquguquka okukhulu kuneembumba ze-hydrophobic eziqhelekileyo. Ezi membrane zesiseko zicutshungulwa emva koko ukuze zenze i-super hydrophilic membranes, ezonyusa ukuxhathisa ekungcolisweni yioyile kunye nezinye izinto ze-viscous nangakumbi.
Ezi membrane zinokubuyiselwa umva ngaphandle kokukhathazeka ngenxa ye-delamination kuba imathiriyeli edibeneyo ingumaleko omnye kunokuba umaleko obhityileyo otyhidiweyo ngaphezulu kwenkxaso yesakhiwo esikhulu sepore. Ukuhlamba umqolo kubonelela ngezinye iinkqubo zokucoca, ezinokuthi zinciphise ukungcola kunye nokwandisa ubomi be-membrane. Iimbumba ezichasene ne-anti-fouling kunye neempawu ze-hydrophobic / hydrophilic zibonelela ngokusebenza okuphezulu ngelixa ukwandisa ubomi bokucoca umva. Olu luhlu lweempawu lufanelekile kwizicelo zokuhluza eziyinkimbinkimbi yikhemikhali, ioli, igrisi, kunye nezixhobo ezahlukeneyo ze-emulsified.
Iingenelo zobuchwephesha bokuchasana ne-membrane ye-anti-fouling ziquka ukuphuculwa kokusebenza okucacileyo kunye nokwanda koqoqosho, okubenza ukuba bafanelekele ngokufanelekileyo uluhlu olubanzi lwezicelo. Ezi ziquka ukuhlukana kweoli / igrisi / amanzi, kunye ne-reverse-osmosis (RO) izicelo zokunyanga kwangaphambili. Khawuqwalasele ezi ngenelo zilandelayo
Amazinga aphezulu eFlux.
Xa kuthelekiswa nangaphambili, uyilo lwe-membrane oluqhelekileyo, le mibhobho ye-novel anti-fouling inika ulwahlulo olusebenzayo kunye namazinga aphezulu okuguquguquka (Umfanekiso 3) kwiingcinezelo ezifaniswayo okanye ezisezantsi zokusetyenziswa kwakhona kwamanzi okanye ukukhutshwa kwamanzi acocekileyo. Basenokuphinda bafumane ii-oyile eziphinde zasetyenziswa kwakhona kunye negrisi kuneendlela zokucoca eziqhelekileyo.
UkuNcitshiswa koNgcolo
Kulo naliphi na isicelo, ukukwazi ukusebenzisa i-membrane kwiingcinezelo ezisezantsi ze-transmembrane kunceda ekunciphiseni ukungcola. Iinwebu ezichasene ne-fouling zenziwa ukuba zijongane namanzi anzima ngakumbi ukunyanga apho ezinye iinwebu eziqhelekileyo zinokungcolisa ngokukhawuleza, zigcine inwebu icocekile kwaye yandise ubomi bayo.
Umgangatho wePermeate obalaseleyo
Ukuhanjiswa kwesayizi ye-pore egqibeleleyo yale membrane echasene ne-fouling yenza ukuba kususwe ngempumelelo kakhulu amasuntswana amisiweyo, ioyile yasimahla, kunye nezixhobo ze-emulsified ukuya kuthi ga kumanqanaba angaphantsi kwe-10 ppm. I-porosity engaguqukiyo ibamba ukungcoliseka ngakumbi kwaye ibonelela ngomgangatho ophakamileyo wamanzi kwi-permeate, ngakumbi kurhwebo lokuphinda kusetyenziswe amanzi amdaka aphazanyiswa yisepha, ii-surfactants, kunye nobunye ubumdaka.
UkuPhuculwa koMsebenzi woQoqosho
Ukuhanjiswa kwesayizi ye-pore egqibeleleyo yale membrane echasene ne-fouling yenza ukuba kususwe ngempumelelo kakhulu amasuntswana amisiweyo, ioyile yasimahla, kunye nezixhobo ze-emulsified ukuya kuthi ga kumanqanaba angaphantsi kwe-10 ppm. I-porosity engaguqukiyo ibamba ukungcoliseka ngakumbi kwaye ibonelela ngomgangatho ophakamileyo wamanzi kwi-permeate, ngakumbi kurhwebo lokuphinda kusetyenziswe amanzi amdaka aphazanyiswa yisepha, ii-surfactants, kunye nobunye ubumdaka.
Kwi-HID sivelisa i-membrane ye-AF yemveliso yeemodeli ze-4040 kunye ne-8040. BW-4040-AF kwaye BW-8040-AF
Ixesha lokuposa: Aug-10-2022