1. PretReatment
Kev Tu Lub Cev: Tshem cov impurities xws li av nkos, colloids, cov kab mob me, cov kab mob me me ntawm qhov chaw membrane. Cov hau kev suav nrog cov dej ntws tawm thiab roj - dej backwashing.
Tshuaj Tu: Siv kua qaub (xws li citric acid), alkali (xws li socium hydroxide) lossis cov tshuaj khib nyiab tshwj xeeb) hauv membrane pores.
Nrhiav kom tau cov kev faib tawm: los ntawm kev sim cov membrane tus nqi kev puas tsuaj, kev txiav txim siab ntawm daim nyias nyias, thiab nws muab faib ua daim nyias nyias thiab txhuam daim nyias nyias.
2. Kho thiab tsim dua tshiab
Tshuaj lom neeg ua dua tshiab: rau cov ntaub ntawv qias neeg nrog cov pa phem tsis muaj zog (xws li sodium hypochlants) lossis cov enzyme hypochlots thiab rov ua kom muaj kev sib sib zog nqus ntawm daim nyias nyias.
Kho lub cev: rau kev puas tsuaj hauv zos ntawm daim nyias qab hau, xws li txheej polydopamine) lossis nanomaterials yog siv los sau lub qhov thiab txuas ntxiv lub neej pabcuam.
Kev hloov kho kho tshuaj hloov kho: kev hloov kho kho tshuaj hloov kho lub cev muaj zog (xws li muaj peev xwm ua kom muaj zog ntawm hydbast hydrocks) txhawm rau kho cov pa dej siab (xws li hyde- ntev} ntev kom muaj dej qab ntsev).
3. Pov Tseg Txiaj Ntsig (rau scrappers membranes)
Pyrolysis kev kho mob: decompose membrane cov ntaub ntawv ntawm cov pa tawm hauv ib puag ncig kom rov qab ua pa roj carbon monoxide thiab qis dua thiab lwm yam tshuaj lom neeg xws li cov tshuaj lom xws li Dioxins.
Cov chaw pov tseg av lossis kev ua kom muaj zog: nws yuav tsum ua raws li cov qauv khib nyiab kom tsis txhob muaj cov tshuaj lom neeg hauv daim nyias nyias. Qee thaj tsam yuav tsum tau hais tias membrane cov khoom siv tau solorified thiab ruaj khov ua ntej chaw khib nyiab.