Rov qab osmosis (RO) cov tshuab lim dej yog qhov kev xaiv nrov rau kev tsim cov dej huv, huv si. Ib qho tseem ceeb hauv RO systems yog semipermeable membrane uas tshem tawm cov kab mob. Nyob rau tib lub sijhawm, RO membrane kev ua haujlwm poob qis thiab yuav tsum tau hloov pauv. Hauv tsab xov xwm no, kuv yuav tham txog cov xwm txheej cuam tshuam rau lub neej ntawm daim nyias nyias thiab cov kev coj ua zoo tshaj plaws rau RO membrane hloov.

Txheej txheem cej luam ntawm RO Membrane Function

RO tshuab siv cov txheej txheem ntau theem kom tshem tawm cov khoom, tshuaj, kab mob thiab lwm yam impurities los ntawm dej. RO membrane yog lub plawv ntawm lub system. Nws yog ib zaj duab xis nyias uas muaj cov microscopic pores uas thaiv txoj kev ntawm cov ntsev yaj thiab lwm yam kab mob.

Raws li dej dhau los ntawm RO daim nyias nyias ntawm qhov siab, cov dej ntshiab molecules ntws los ntawm thaum feem ntau cov impurities tau khaws cia thiab ntxuav hauv qhov ntws. Nyob rau tib lub sijhawm, cov kab mob sib kis ntawm daim nyias nyias ua rau fouling thiab tsis ua haujlwm.

Hom RO Membrane Lifespan

Lub neej ntev ntawm RO membrane nyob ntawm ntau qhov sib txawv. Nrog rau kev pom zoo, lub neej ntawm daim nyias nyias yog feem ntau 2-5 xyoo rau cov kab ke hauv tsev thiab 5-7 xyoo rau kev lag luam teeb pom kev zoo. Txawm li cas los xij, dej tsis zoo thiab kev saib xyuas tuaj yeem ua rau lub neej luv luv.

Qhov nruab nrab, npaj los hloov RO daim nyias nyias txhua 3 xyoos hauv feem ntau hauv tsev. Kev siv siab thiab cov dej nyuaj tuaj yeem hais ntau zaus hloov daim nyias nyias txhua 1-2 xyoos.

Tej yam uas cuam tshuam rau Membrane Longevity

Muaj ntau yam tseem ceeb uas cuam tshuam ntev npaum li cas RO membrane yuav kav ntev ua ntej yuav tsum tau hloov:

• Dej tsis zoo - Cov qib siab ntawm cov av thiab qee cov tshuaj hauv cov dej pub tuaj yeem ua rau cov kab mob foul sai dua. Qhov dej zoo yog qhov teeb meem tshwj xeeb.

• Kev siv dej - Kev siv hnyav thiab ntim ntau dhau los hnav cov membranes tawm sai dua.

• Kev Kho - Tsis muaj kev tu daim nyias nyias thiab lim hloov ua kom lub neej luv luv.

• Siab - Ua haujlwm nyob rau hauv qis lossis siab siab stresses lub membrane.

• Hnub nyoog - Membranes maj mam poob kev ua haujlwm thaum lawv muaj hnub nyoog.

Dej kub kuj ua lub luag haujlwm. Cov dej sov ua rau cov dej ntws nrawm dua tab sis tuaj yeem ua rau lub sijhawm ua haujlwm luv. Cov dej txias khaws cov daim nyias nyias tab sis slows zus tau tej cov.

Cov cim Nws yog lub sij hawm hloov lub Membrane

Txoj kev txhim khu kev qha tshaj plaws los txheeb xyuas qhov hnav tawm ntawm daim nyias nyias yog los ntawm kev txo qis permeate ntws. Raws li daim nyias nyias ua fouled thiab cov kav dej pib ntsuas, qhov ntau ntawm cov dej lim uas tsim tawm yuav poob.

Lwm cov cim qhia tias nws yog lub sijhawm rau daim nyias nyias:

• Tsawg qhov tsis lees paub - Ntau cov kab mob kis tau los ntawm qhov system.

• High TDS - Ua kom tag nrho cov dej yaj hauv cov khoom dej.

• pH hloov - hloov pauv hauv dej permeate pH.

• Foul tsw / saj - tsw los yog saj qhia tias muaj kab mob.

• Ua tsis tiav remineralize - Tsis muaj peev xwm ntxiv rov qab cov zaub mov muaj txiaj ntsig.

• Leakage - dej dhau ntawm daim nyias nyias brine foob.

• Lub hnub nyoog laus - kev poob qis tom qab 3-5 xyoos.

Ua txhua xyoo daim nyias nyias autopsies thiab tsis tu ncua ntau lawm kev ntsuam xyuas cia koj txheeb xyuas cov teeb meem ntxov.

Kev coj ua zoo tshaj plaws rau RO Membrane Hloov

Thaum nws txog sijhawm los hloov RO daim nyias nyias, nco ntsoov ua raws li cov txheej txheem tsim nyog:

• Tshawb xyuas tag nrho lwm cov lim dej thiab hloov raws li xav tau

• Flush valves, tubing thiab vaj tse kom huv si

• Siv hnab looj tes tiv thaiv thiab qhov muag hnav

• Ua raws li cov neeg tsim khoom cov lus qhia

• Disinfect system nrog chlorine tom qab nruab

• Paub meej tias membrane orientation - cim xub

• Lubricate o-rings thiab brine foob

• Re-pressurize thiab tshawb xyuas cov xau

• Tshem tawm cov membrane tshiab rau cov lus qhia

• Test permeate dej zoo

Hloov cov lim dej ua ntej thiab yaug cov pob zeb qub qub pab ua kom lub neej thiab kev ua haujlwm ntawm daim nyias nyias tshiab. Siv sijhawm los ntxuav lub cev kom huv si thiab.

Txhim kho Membrane Ntev

Koj tuaj yeem txhim kho lub neej ntawm daim nyias nyias los ntawm kev tsim qauv tsim, kev saib xyuas, thiab kev ua haujlwm:

• Pretreatment - Multi-theem prefiltration prolongs membrane lub neej.

• Flushing - niaj hnub yaug cov membranes nrog permeate.

• DIY Ntxuav - Qee zaus sib sib zog nqus ntxuav nrog cov khoom siv DIY.

• Kev hloov pH - Khaws cov dej pH ntawm 3-11.

• Leak checks - Txhim kho cov dej ntws tam sim ntawd kom tsis txhob muaj dej ntau dhau.

• Kev Siv - Tsis txhob siv cov dej ntws ntau dhau thiab lub sijhawm stagnation ntev.

• Siab Siab - Ua kom siab ntawm 50-125 psi.

• Kub - Ambient kub nyob ib ncig ntawm 77 ° F yog qhov zoo tagnrho.

• Teem sijhawm hloov - Hloov daim nyias nyias raws li lub sijhawm tsis hais qhov tshwm sim.

Kev saib xyuas zoo RO membrane ua rau muaj kev ua haujlwm zoo ib yam thiab cov dej ntshiab ntseeg tau. Zam kev fouling ntxov ntxov thiab ua tsis tiav yuav txuag nyiaj hauv lub sijhawm ntev thiab.

kawg

RO membrane hloov yog ib qho tseem ceeb ntawm kev muaj RO system. Nrog rau qhov nruab nrab siv hauv tsev, npaj rau kev hloov daim nyias nyias txhua 3 xyoos. Cov dej sib tw ntau dua lossis siv hnyav tuaj yeem hais kom hloov pauv ntau zaus txhua 1-2 xyoos.

Saib xyuas koj qhov system qhov ntau lawm thiab permeate dej zoo. Thaum koj pom tias txo qis kev ua haujlwm, nws yog lub sijhawm tiag tiag rau daim nyias nyias. Nrog kev tu thiab kev ua haujlwm kom zoo, koj tuaj yeem ua kom zoo dua RO membrane lifespan. Tab sis tsis muaj daim nyias nyias nyob mus ib txhis, yog li kev hloov pauv raws sijhawm yog qhov tseem ceeb.

References

Cov khoom siv dej ntshiab. "Thaum twg Kuv Yuav Tsum Hloov Kuv RO Membrane?" https://www.purewaterproducts.com/articles/ro-membrane-change

Cov ntaub ntawv lim dej. "Yuav Ua Li Cas Rov Qab Osmosis Membranes Kawg?" https://www.waterfilterdata.org/how-long-ro-membrane-lasts/

Mar Cor Purification. "Xim tias koj RO Membrane xav tau hloov."  https://www.mcpur.com/publications/memo/vol-5/iss-1/signs-that-your-ro-membrane-needs-replacing

WQA. "Rov qab Osmosis Hloov Lim thiab Membranes." https://www.wqa.org/Portals/0/Technical/Technical%20Fact%20Sheets/EPU/EPU_ReverseOsmosisReplFilters.pdf