25 kev daws teeb meem ntawm kev rov qab osmosis membrane technology (Part 2)

7. Leej twg muag cov tshuaj ntxuav cov membrane los yog muab kev pab tu?

Cov tuam txhab kho dej tuaj yeem muab cov neeg ua haujlwm tshwj xeeb hauv daim nyias nyias thiab cov kev pabcuam tu, thiab cov neeg siv tuaj yeem yuav cov tshuaj ntxuav cov ntaub so ntswg raws li cov lus pom zoo ntawm cov tuam txhab membrane lossis cov khoom siv.

8. Dab tsi yog qhov siab tshaj plaws tso cai concentration ntawm silica hauv qhov nkag ntawm qhov rov qab osmosis membrane?

Qhov siab tshaj plaws tso cai ntawm silica nyob ntawm qhov kub thiab txias, pH, thiab nplai inhibitor. Feem ntau, qhov siab tshaj plaws tso cai rau hauv cov dej ntshiab yog 100ppm yam tsis muaj qhov sib ntxiv ntawm cov nplai inhibitor. Qee qhov scale inhibitors tuaj yeem tso cai rau qhov siab tshaj plaws ntawm silica hauv cov dej muaj zog yog 240ppm. Thov sab laj nrog tus neeg muag khoom scale inhibitor.

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9. Dab tsi yog qhov cuam tshuam ntawm chromium ntawm RO membranes?

Qee cov hlau hnyav xws li chromium tuaj yeem ua rau oxidation ntawm cov tshuaj chlorine, ua rau kev ua haujlwm tsis zoo ntawm daim nyias nyias. Qhov no yog vim qhov ruaj khov ntawm Cr6 + hauv dej yog qhov phem dua li ntawm Cr3 +. Nws zoo nkaus li tias cov hlau ions nrog oxidation valence siab dua muaj qhov cuam tshuam zoo dua. Yog li ntawd, qhov concentration ntawm chromium yuav tsum tau txo los yog tsawg kawg yog Cr6 + yuav tsum tau txo mus rau Cr3 + nyob rau hauv lub pre-kev kho mob seem.

10. Dab tsi ntawm preprocessing feem ntau yuav tsum tau rau RO systems?

Cov txheej txheem ua ntej kev kho mob muaj xws li ntxhib pom (~ 80 microns) kom tshem tawm cov khoom loj, ntxiv cov oxidants xws li sodium hypochlorite, tom qab ntawd precision pom los ntawm lub tshuab lim dej los yog lub tank kom meej, ntxiv oxidants xws li sodium bisulfite kom txo cov chlorine seem, thiab thaum kawg txhim kho lub lim dej ua ntej lub twj tso kua mis siab. Kev ua haujlwm ntawm kev ruaj ntseg lim, raws li lub npe qhia, yog los ua qhov kev ntsuas kev nyab xeeb zoo tshaj plaws los tiv thaiv cov khoom loj loj los ntawm kev puas tsuaj rau lub impeller thiab daim nyias nyias ntawm lub twj tso kua mis siab. Cov dej hauv dej uas muaj cov ntsiab lus siab ntawm cov khib nyiab pov tseg feem ntau xav tau ntau dua ntawm kev kho mob ua ntej kom tau raws li qhov yuav tsum tau ua; Rau cov dej uas muaj cov ntsiab lus hardness siab, nws raug nquahu kom siv softening lossis ntxiv cov kua qaub thiab nplai inhibitors. Rau cov dej uas muaj cov microbial siab thiab cov ntsiab lus organic, cov pa roj carbon activated lossis anti fouling membrane cov ntsiab lus tseem xav tau.

11.Puas thim rov qab osmosis tshem tawm cov kab mob xws li kab mob thiab kab mob?

Rov Qab Osmosis (RO) yog tuab heev thiab muaj qhov tsis txaus ntseeg rau cov kab mob, thiab cov kab mob, tsawg kawg (kev tshem tawm> 99.9%). Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias nyob rau hauv ntau qhov xwm txheej, cov kab mob tseem tuaj yeem tsim tawm ntawm cov dej ua rau sab ntawm daim nyias nyias, uas feem ntau yog nyob ntawm kev sib dhos, kev saib xyuas, thiab kev saib xyuas. Hauv lwm lo lus, lub peev xwm ntawm lub kaw lus tshem tawm cov kab mob nyob ntawm qhov tseem ceeb ntawm seb qhov kev tsim qauv, kev ua haujlwm, thiab kev tswj hwm puas tsim nyog es tsis yog cov khoom ntawm cov khoom siv membrane ntawm lawv tus kheej.

12. Qhov cuam tshuam ntawm qhov kub thiab txias ntawm kev tsim dej yog dab tsi?

Qhov kub thiab txias, qhov ntau dua cov dej ntau lawm, thiab vice versa. Thaum ua haujlwm nyob rau hauv qhov kub thiab txias, kev khiav hauj lwm siab yuav tsum tau txo qis kom tswj tau cov dej ntau lawm, thiab rov ua dua. Thov xa mus rau tshooj uas cuam tshuam rau qhov ntsuas kub kho qhov ntsuas TCF rau kev hloov pauv hauv cov dej ntau lawm.