25 yakajairwa mhinduro dze reverse osmosis membrane tekinoroji dambudziko (Chikamu 3)

13. Chii chinonzi particle uye colloid kusvibiswa? Kuyera sei?

Kamwe kusvibiswa kwechikamu uye colloid kunoitika mune reverse osmosis kana nanofiltration masisitimu, inogona kukanganisa zvakanyanya kugadzirwa kwemvura ye membrane uye dzimwe nguva kuderedza chiyero che desalination. Zviratidzo zvekutanga zve colloidal fouling ndeyekuwedzera kwemaitiro ekumanikidza musiyano, uye matsime ezvimedu kana colloids mu membrane inlet mvura sosi inosiyana kubva munzvimbo nenzvimbo, kazhinji kusanganisira mabhakitiriya, sludge, colloidal silicon, iron corrosion products, etc. Mishonga inoshandiswa muchikamu chekutanga chekurapa, senge polyaluminum uye ferric chlorication kana ferric chloride inogona kukonzerawo ferric chloride zvakanyatsobviswa mutangi rekujekesa kana yepakati sefa. Uye zvakare, cationic polymeric dielectrics inogona zvakare kuita neanionic scale inhibitors, uye precipitates yavo inogona kusvibisa membrane zvikamu. SDI15 inoshandiswa kuongorora tsika yekusvibisa kwakadaro kana kusati kwarapwa mumvura. Tapota tarisai mashoko akadzama esumo muzvitsauko zvakakodzera.

14. Inguva yakareba sei iyo yakanyanya kubvumidzwa kuvharika pasina system yekutsvaira?

Kana iyo system inoshandisa scale inhibitors, kana tembiricha yemvura iri pakati pe20-38 ℃, zvinotora anenge maawa mana; Inenge maawa masere pasi pe20 ℃; Kana iyo system isiri kushandisa scale inhibitors, zvinotora zuva rimwe chete.

15. Iko kushandiswa kwesimba kwe membrane system kunogona kuderedzwa sei?

Yakaderera simba rekushandisa membrane zvinhu zvakakwana, asi zvinofanirwa kucherechedzwa kuti yavo desalination mwero yakadzikira zvishoma pane yeyakajairwa membrane element.

Inogona kupfuura zvakasununguka kuburikidza ne microfiltration membrane, iyo inoshandiswa kubvisa mabhakitiriya, micro flocs, kana yakazara yakamiswa solids (TSS). Iyo yakajairika kudzvanywa pamativi ese e membrane ndeye 1-3 bar

16.Ko iyo reverse osmosis yakachena mvura system inowanzotanga nekumira?

Iyo membrane system yakagadzirirwa zvichienderana nekuenderera mberi kwekushanda, asi mukushanda chaiko, pachagara paine imwe frequency yekutanga nekuvhara. Kana iyo membrane system yakavharwa, zvinodikanwa kushandisa mvura yayo inogadzirwa kana pre-yakacheneswa mvura yakashongedzwa yepasi-pressure flushing kutsiva yakakwira concentrated mvura ine scale inhibitors kubva kune membrane components. Matanho anofanirwa kutorwawo kudzivirira kubuda kwemvura muhurongwa uye kuunzwa kwemhepo, sekunge chikamu chinodonha nekuoma, chinogona kukonzera kurasikirwa kusingadzoreki kwekuyerera kwekugadzira mvura. Kana iyo shutdown isingasviki maawa makumi maviri nemana, hapana chikonzero chekutora matanho ekudzivirira kukura kwehutachiona. Asi kana nguva yekuvhara yakadarika mirairo iri pamusoro, mvura inodzivirira inofanirwa kushandiswa kuchengetedza system kana kumhanyisa nguva ye membrane system.

17.Ungaziva sei kutungamira kwekuisa mhete dzemvura yemunyu pazvikamu zve membrane?

Iyo mhete yemvura yemunyu yekuisa chisimbiso pane membrane element inodiwa kuti iiswe kumagumo ekupinza kwechinhu, nekuvhura kwakatarisana neinopinza nzira. Kana mudziyo wekumanikidza uzere nemvura, kuvhurika kwayo (kumucheto kwemuromo) kuchawedzera kuvhurika, kuvhara zvachose kuyerera kwemvura yerutivi kubva kune membrane element kusvika kumadziro emukati emutsindo wekumanikidza.

18.How kubvisa nesilicon kubva mumvura?

Sirikoni iri mumvura iripo mumhando mbiri: silicon inoshanda (monomeric silicon) uye colloidal silicon (polysilicon): colloidal silicon haina maitiro eiyoni, asi ine chiyero chakakura. Colloidal silicon inogona kubvunzurudzwa nemaitiro akanaka ekusefa, senge reverse osmosis, uye zviri mumvura zvinogona kudzikiswa kuburikidza necoagulation tekinoroji, senge coagulation clarification matangi. Nekudaro, matekinoroji ekuparadzanisa anovimba nemaitiro eiyoni yekuchaja, senge ion exchange resin uye inoenderera mberi electrodeionization process (CDI), ine hushoma hunobudirira mukubvisa colloidal silicon.

Saizi yesilicon yakashongedzwa idiki zvakanyanya pane iyo yecolloidal silicon, saka tekinoroji yakawanda yekusefa senge coagulation kujekeswa, kusefa, uye kuyerera kwemhepo haigone kubvisa activated silicon. Maitiro anogona kunyatso bvisa activated silicon anosanganisira reverse osmosis, ion exchange, uye inoenderera electrodeionization.