Ukugcinwa kweMembrane engangenwa manzi kunye neNcinci
Xa i-membrane igcinwe ixesha elide, kufuneka igcine ukusebenza kakuhle kwaye ibe nexabiso lokusetyenziswa, ngoko ke ubomi be-membrane engenamanzi kunye nokuphefumula ngumcimbi obalulekileyo. Ngoko ke, ingqalelo ekhethekileyo kufuneka ihlawulwe kwindawo yokugcina.
Ukugcinwa kwe-membrane ye-microfiltration engenamanzi kunye nephefumulayo ihlukaniswe ngeendlela ezimbini: ukugcinwa okumanzi kunye nokugcinwa okomileyo. Ngayiphi na indlela, injongo kukukhusela i-membrane ekubeni i-hydrolyzed, ukukhusela ukukhula kunye nokukhukuliseka kwe-microorganisms, kunye nokunciphisa kunye nokuguqulwa kwe-membrane.
Isitshixo sokugcinwa okumanzi kukuhlala ugcina umphezulu we-membrane kunye nesisombululo sokugcina kwindawo emanzi. Le fomula ilandelayo ingasetyenziselwa isisombululo sokugcina: amanzi: glycerin: formaldehyde = 79.5:20:0.5. Indima ye-formaldehyde kukuthintela ukukhula kunye nokuveliswa kwee-microorganisms kumphezulu we-membrane kunye nokukhusela ukuguguleka kwe-membrane. Injongo yokongeza i-glycerin kukunciphisa indawo yokukhenkceza yesisombululo sokugcina kunye nokukhusela i-membrane ukuba yonakaliswe yiqhwa. I-formaldehyde kwifomula inokuthi ithathelwe indawo ngamanye amachiza okungunda afana ne-copper sulfate engenabungozi kwi-membrane. Ubushushu bokugcinwa kwe-cellulose i-acetate membrane yi-5-40 ° C kunye ne-PH = 4.5 ~ 5, ngelixa ubushushu bokugcina kunye ne-pH ye-non-cellulose i-acetate membrane ingaba banzi.
Ugcino olomileyo
Iimbrane ze-microfiltration ezingenamanzi kunye neziphefumlayo zihlala zibonelelwa kwiimarike njengeembrane ezomileyo kuba kulula ukuzigcina kunye nokuthutha. Ukongezelela, ifilimu emanzi kufuneka igcinwe ngendlela eyomileyo, kwaye iindlela ezilandelayo kufuneka zisetyenziswe ukucubungula ifilimu ngaphambi kokuqhubeka. Indlela ethile yile: i-cellulose acetate membrane inokucwiliswa kwi-50% ye-glycerin yesisombululo se-aqueous okanye i-0.1% ye-sodium lauryl sulfonate isisombululo se-aqueous se-5 ukuya kwiintsuku ze-6, kwaye yomiswe kwi-fumidity ye-88%. I-polysulfone membrane inokomiswa kwiqondo lokushisa kwegumbi kunye nesisombululo se-10% ye-glycerin, ioli ye-sulfonated, i-polyethylene glycol, njl njl. njenge-dehydrating agent. Ukongeza, ii-surfactants zinefuthe elihle ekukhuseleni iipores zefilimu kwi-deformation.
Okwesibini, ukugcinwa kunye nokugcinwa kwenkqubo ye-membrane engenamanzi kunye nokuphefumula kufuneka kuhoywe ingqalelo
Ukugcinwa kunye nokugcinwa kwenkqubo ye-membrane kufuneka kugxininise kule miba ilandelayo.
① Ngokweembrane ezahlukeneyo, ingqwalasela eyodwa kufuneka ihlawulwe kwindawo yokusetyenziswa, ngakumbi ubushushu kunye nexabiso le-pH yolwelo lwemathiriyeli, kunye nomxholo weklorine kulwelo lwemathiriyeli.
② Xa inkqubo ye-membrane imisiwe ixesha elifutshane, kufuneka kuhlawulwe ingqalelo ekugcinweni komswakama we-membrane, kuba emva kokuba i-membrane ilahlekelwe ngamanzi, akukho ndlela yokulungisa, i-membrane engenamanzi kunye ne-breath pores iya kuncipha kwaye iguqule. iya kunciphisa ukusebenza kwe-membrane.
③Xa uyeka, kunqanda ukudibana nolwelo olukwiqondo eliphezulu.
④ Hlamba kwaye ugcine inwebu rhoqo ngolwelo lolondolozo ukunciphisa ungcoliseko lwenwebu.
⑤ Ekusetyenzisweni, sebenza ngokuhambelana neemeko zokusebenza ukuba inkqubo ye-membrane inokumelana nokuphepha ukugqithisa.
Ixesha lokuthumela: 15-09-21