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S11 xwv

SWRO Seawater Desalination Solution ---- Seawater Desalination Rov Qab Osmosis System rau Dej Purifier

Dej yog lub hauv paus ntawm lub neej, muaj nuj nqis thiab irreplaceable natural resources rau tib neeg beings, thiab lub lifeblood ntawm kev sib raug zoo thiab kev lag luam kev loj hlob. Qhov tsis muaj peev txheej dej thiab cov dej paug loj zuj zus tau dhau los ua lub hauv paus txwv tsis pub muaj kev vam meej hauv zej zog thiab kev loj hlob ntawm kev lag luam. Ntxiv nrog rau kev tswj hwm kev tshawb fawb thiab kev pom zoo ntawm cov peev txheej dej, nws tseem ceeb heev kom muab kev ua si tag nrho rau lub luag haujlwm ntawm high-tech txhais tau tias hauv dej rov siv dua. Seawater desalination yog ib qho tseem ceeb los daws qhov tsis muaj peev txheej dej. Txog tam sim no, muaj ntau ntau txoj hauv kev desalination dej hiav txwv, feem ntau suav nrog distillation, membrane txoj kev, electrodialysis txoj kev thiab txoj kev khov. Ntawm lawv, txoj kev thim rov qab osmosis (SWRO) ntawm cov txheej txheem membrane yog qhov kev loj hlob sai tshaj plaws, kev nqis peev qis tshaj plaws, kev txuag hluav taws xob tshaj plaws thiab tus nqi qis tshaj desalination technology. Rov qab osmosis system yog kev kho dej zoo thiab ib puag ncig tus phooj ywg, uas yog siv dav hauv seawater desalination, industrial water treatment, haus dej purification thiab lwm yam.

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Lub hauv paus ntsiab lus ua haujlwm ntawm thim rov qab osmosis seawater desalination system yog tsuas yog raws li cov txheej txheem sib cais membrane. Membrane sib cais tshuab yog ib hom kev siv tshuab los cais thiab ntxuav cov khoom sib txawv los ntawm kev xaiv los ntawm cov yeeb yaj kiab polymer. Hauv cov txheej txheem rov qab osmosis desalination, cov yeeb yaj kiab polymer yog cov qauv asymmetric tsim los ntawm cov cortex tuab thiab cov txheej txheem xoob. Cov Cortex ntom yog lub taub txheej ntawm daim nyias nyias thiab muaj cov teeb meem micrometer thiab muaj cov teeb meem uas txwv tsis pub muaj ncua thiab cov kab mob me me los ntawm kev hla dhau. Cov txheej txheem xoob yog cov txheej txheem txhawb nqa ntawm daim nyias nyias, uas muaj qhov pore loj thiab tuaj yeem ua kom lub zog tag nrho ntawm daim nyias nyias.

Seawater desalination thim rov qab osmosis system txheej txheem ntws
Rov qab osmosis seawater desalination (SWRO) systems tau dhau los ua cov cuab yeej tseem ceeb hauv kev ua dej hiav txwv desalination, muab kev daws teeb meem rau cov teeb meem dej tsis txaus thoob ntiaj teb. Cov txheej txheem dej hiav txwv rov qab osmosis muaj ob peb kauj ruam tseem ceeb los xyuas kom meej cov dej haus zoo yog tsim los ntawm cov dej hiav txwv. Kev nkag siab txog tus nqi ntws ntawm qhov rov qab osmosis yog qhov tseem ceeb rau kev nkag siab txog nws cov txiaj ntsig desalination thiab cov txiaj ntsig. Cov txheej txheem txheej txheem suav nrog cov kauj ruam hauv qab no: 1.Primary filtration: Raw seawater thawj zaug dhau los ntawm thawj lim kom zoo tshem tawm cov khoom loj, tshem tawm cov khib nyiab thiab qee qhov impurities. Cov kauj ruam no yog qhov tseem ceeb los npaj cov dej hiav txwv rau kev ua haujlwm ntxiv, kom ntseeg tau tias kev ua haujlwm tom ntej yuav ua tau zoo dua.

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2. Secondary filtration: Thawj cov dej lim dej dhau los ntawm cov lim dej lim dej rau cov lim dej thib ob. Lub hom phiaj ntawm theem no yog tshem tawm cov khoom tsis zoo xws li cov organic teeb meem thiab cov tshuaj chlorine seem, ntxiv cov dej hiav txwv kom huv, thiab npaj rau theem tom ntej ntawm kev kho mob. 3. Precision filtration: Cov dej yog tom qab ntawd precision lim los ntawm lub tshuab lim kom ntxiv tshem tawm cov kab mob, kab mob thiab lwm yam impurities. Cov kauj ruam no ua kom cov dej huv huv ua ntej nkag mus rau hauv lub plawv ntawm cov txheej txheem rov qab osmosis. 4. Rov qab Osmosis Membrane: Cov dej precision-filtered yog ces coj los ntawm cov rov qab osmosis membrane, uas yog ib feem tseem ceeb ntawm lub system. Rov qab osmosis membranes pab cais thiab tshem tawm ntsev, organics, hnyav hlau, thiab lwm yam khoom los tsim cov dej ntshiab, desalinated. 5. Kev tua kab mob thiab kev cia khoom: Tom qab cov dej dhau los ntawm qhov rov qab osmosis membrane, nws yog tshuaj tua kab mob kom tshem tawm cov kab mob uas tseem tshuav. Tom qab ntawd cov dej huv huv tau muab tso rau hauv lub tank npaj rau kev faib thiab siv.

Qhov zoo ntawm rov qab osmosis systems hauv seawater desalination yog ntau. Lub kaw lus muaj cov yam ntxwv ntawm kev ua haujlwm siab, kev tiv thaiv ib puag ncig, txuag hluav taws xob thiab kev nyab xeeb. Rov qab osmosis thev naus laus zis tuaj yeem tshem tawm ntau dua 99% ntawm cov khoom tsis zoo xws li ntsev, organic teeb meem, cov hlau hnyav, thiab lwm yam, ua kom cov dej ntshiab huv los ntawm cov dej hiav txwv thiab daws qhov kev xav tau sai rau cov dej tshiab. Cov txiaj ntsig ib puag ncig ntawm rov qab osmosis systems kuj tseem ceeb. Tsis zoo li cov qauv dej hiav txwv desalination, RO systems tsis xav tau cov tshuaj lom neeg ntau, tsis tsim cov dej khib nyiab, thiab yog ib puag ncig zoo. Qhov no txoj hauv kev ruaj ntseg rau desalination ua raws li kev siv zog thoob ntiaj teb los txhawb kev kho dej ib puag ncig thiab kev txuag kev daws teeb meem.

Ntxiv nrog rau cov txiaj ntsig ib puag ncig, cov txheej txheem rov qab osmosis muaj kev saib xyuas qis, yooj yim rau kev khiav lag luam, thiab haum rau ntau yam dej. Cov khoom no ua rau cov txheej txheem rov qab osmosis yog qhov ua tau zoo thiab txhim khu kev qha rau kev desalination, tshwj xeeb tshaj yog nyob rau thaj chaw uas muaj cov khoom siv dej tshiab tsawg. Hauv cov ntsiab lus, cov txheej txheem ntawm qhov rov qab osmosis system hauv desalination muaj cov kauj ruam yooj yim uas thaum kawg tsim cov dej ntshiab los ntawm cov dej hiav txwv. Nrog rau kev ua tau zoo, ib puag ncig cov txiaj ntsig thiab kev hloov pauv, cov txheej txheem rov qab osmosis yog cov thev naus laus zis tseem ceeb los daws cov dej tsis txaus thiab xyuas kom muaj kev nkag mus tau zoo rau cov dej tshiab.

Infiltration thiab thim rov qab osmosis

Rov qab osmosis yog txheej txheem rov qab osmosis. Permeability yog ib tug natural phenomenon. Cov dej molecules nyob rau hauv dilute tov yuav diffuse los ntawm cov semi-permeable membrane mus rau sab ntawm concentrated tov ntawm ib tug kuj ceev ceev. Raws li pom hauv daim duab, cov kua theem ntawm sab dej tshiab yuav txo qis, ua rau muaj qhov sib txawv hydrostatic siab. Qhov sib txawv ntawm hydrostatic siab ntawm qhov taw tes no yog hu ua osmotic siab (lub siab osmotic ntawm cov dej hiav txwv thiab dej tshiab yog li 2.4MPa).

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Rov qab osmosis txheej txheem tsuas yog qhov rov qab. Hauv SWRO, lub siab ntau dua li osmotic siab ntawm seawater ntawm ib sab yuav ua rau cov dej molecules hauv dej hiav txwv hla los ntawm daim nyias nyias thiab cov ntsev yuav raug kaw. Raws li txoj cai, qhov siab dua sab nraud, qhov rov qab osmosis ntawm dej molecules hauv dej hiav txwv yuav sai dua. Cov ntsiab lus tseem ceeb ntawm cov txheej txheem rov qab osmosis yog cov khoom siv hluavtaws semi-permeable uas tso cai rau yuav luag cov dej molecules dhau los. Lub tiaj daim nyias nyias ntawm rov qab osmosis membrane yuav tsum tau ua rau hauv ib qho kev teeb tsa ua ntej nws tuaj yeem siv rau hauv kev kho dej engineering. Niaj hnub no, nyob rau hauv seawater desalination, aromatic polyamide coil membrane caij feem ntau yog siv.

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Cov dej uas tsim cov diaphragm yog muab tso rau ntawm ob lub tiaj daim nyias nyias, thiab cov txheej membrane yog cemented ua ke raws li peb npoo ntawm daim nyias nyias txheej, thiab tom qab ntawd ua ke nrog cov dej inlet diaphragm ua ke thiab qhov txhab ntawm lub hauv nruab nrab lub raj. Thaum kawg, lub perforated kawg cap yog ntsia ntawm ob qho kawg thiab encapsulated los ua lub dov membrane caij. Kev lag luam thim rov qab osmosis membrane cov ntsiab lus tuaj nyob rau hauv ntau yam kev qhia tshwj xeeb, nrog rau cov khoom siv feem ntau siv hauv kev desalination muaj txoj kab uas hla ntawm 200mm thiab tus qauv ntev ntawm 1000mm.

Cov dej uas tsim cov diaphragm yog muab tso rau ntawm ob lub tiaj daim nyias nyias, thiab cov txheej membrane yog cemented ua ke raws li peb npoo ntawm daim nyias nyias txheej, thiab tom qab ntawd ua ke nrog cov dej inlet diaphragm ua ke thiab qhov txhab ntawm lub hauv nruab nrab lub raj. Thaum kawg, lub perforated kawg cap yog ntsia ntawm ob qho kawg thiab encapsulated los ua lub dov membrane caij. Kev lag luam thim rov qab osmosis membrane cov ntsiab lus tuaj nyob rau hauv ntau yam kev qhia tshwj xeeb, nrog rau cov khoom siv feem ntau siv hauv kev desalination muaj txoj kab uas hla ntawm 200mm thiab tus qauv ntev ntawm 1000mm.


SWRO muaj lub twj tso kua mis siab, lub nkoj siab, thiab lub zog rov qab los. Tom qab cov dej hiav txwv tau pretreated thiab pressurized rau hauv lub siab hlab ntsha ntawm lub rov qab osmosis chav tsev los ntawm lub siab siab twj tso kua mis, lub seawater thawj zaug dhau los ntawm cov thawj daim nyias nyias thiab ntws nyob rau hauv lub inlet barrier channel ntawm lub membrane caij uas yog spirally mob. Nyob rau hauv siab dua, ib feem ntawm cov dej molecules tsis tu ncua nkag mus rau hauv daim nyias nyias thiab nkag mus rau hauv lub hauv paus raj ntawm lub coiled membrane caij los ntawm cov ndlwg channel ntawm cov dej ua barrier, generating cov khoom dej. Tus so ntawm cov dej nkag mus txuas ntxiv mus raws cov kev taw qhia ntws mus rau cov khoom siv membrane tom ntej. Cov txheej txheem no yog ua nyob rau hauv lem. Thaum cov dej muaj txiaj ntsig dhau los ntawm cov txheej txheem membrane tom ntej, cov dej muaj zog concentration nce. Thaum nws ntws los ntawm qhov kawg ntawm daim nyias nyias, cov dej muaj zog dhau los ua cov dej ntshiab.

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Sib txawv ntawm cov txheej txheem thermal, SWRO tsis muaj cov txheej txheem hloov pauv ntawm evaporation thiab condensation. Lub zog siv hluav taws xob tseem ceeb ntawm SWRO yog lub zog siab siv lub zog kom paub txog cov txheej txheem rov qab osmosis, uas ua rau cov dej tsim cov nqi rov qab osmosis qis dua li ntawm cov txheej txheem thermal. Tsis tas li ntawd, piv nrog cov txheej txheem thermal, nws cov khoom siv kuj muaj cov qauv qauv thiab cov txheej txheem siab ua kom yooj yim. Kev ncua thiab kev saib xyuas ntawm cov chaw hauv zos tsis tuaj yeem cuam tshuam rau kev ua haujlwm ntawm tag nrho cov txheej txheem. Txawm li cas los xij, SWRO xav tau cov txheej txheem ua ntej thiab ua kom zoo, thiab cov chaw tsim khoom lag luam sib txawv muaj cov kev cai nruj ntawm SDI, pH, kub, cov tshuaj chlorine seem thiab lwm yam ntsuas ntawm polyamide thim rov qab osmosis membrane. Thaum lub pretreatment tsis yog raws li tus qauv, cov pa phem thiab scaling ntawm daim nyias nyias yuav tsum ceev, thiab cov kev pab cuam lub neej, lub zog noj thiab cov khoom zoo ntawm cov membrane module yuav raug cuam tshuam nyob rau hauv lub lag luam, yog li nce nqi ntawm cov dej ntau lawm.

Sib txawv ntawm cov txheej txheem thermal, SWRO tsis muaj cov txheej txheem hloov pauv ntawm evaporation thiab condensation. Lub zog siv hluav taws xob tseem ceeb ntawm SWRO yog lub zog siab siv lub zog kom paub txog cov txheej txheem rov qab osmosis, uas ua rau cov dej tsim cov nqi rov qab osmosis qis dua li ntawm cov txheej txheem thermal. Tsis tas li ntawd, piv nrog cov txheej txheem thermal, nws cov khoom siv kuj muaj cov qauv qauv thiab cov txheej txheem siab ua kom yooj yim. Kev ncua thiab kev saib xyuas ntawm cov chaw hauv zos tsis tuaj yeem cuam tshuam rau kev ua haujlwm ntawm tag nrho cov txheej txheem. Txawm li cas los xij, SWRO xav tau cov txheej txheem ua ntej thiab ua kom zoo, thiab cov chaw tsim khoom lag luam sib txawv muaj cov kev cai nruj ntawm SDI, pH, kub, cov tshuaj chlorine seem thiab lwm yam ntsuas ntawm polyamide thim rov qab osmosis membrane. Thaum lub pretreatment tsis yog raws li tus qauv, cov pa phem thiab scaling ntawm daim nyias nyias yuav tsum ceev, thiab cov kev pab cuam lub neej, lub zog noj thiab cov khoom zoo ntawm cov membrane module yuav raug cuam tshuam nyob rau hauv lub lag luam, yog li nce nqi ntawm cov dej ntau lawm.

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Lub zog rov qab ntaus ntawv yog lwm yam khoom siv tseem ceeb. Txoj kev loj hlob sai ntawm SWRO yog ntaus nqi los ntawm kev siv lub zog rov qab ntaus ntawv nrog kev ua haujlwm ntawm kev rov qab osmosis ntxiv rau kev ua kom zoo dua qub ntawm cov ntaub ntawv membrane thiab cov khoom siv membrane. Niaj hnub no, PX-hom kev ua haujlwm siab rov qab tau zoo tuaj yeem rov qab tau ntau dua 95% ntawm lub zog hauv cov dej muaj zog thiab ua kom nws mus rau hauv dej hiav txwv, txo cov kev siv zog ntawm cov txheej txheem rov qab osmosis los ntawm yuav luag ib nrab. TDS ntawm thawj qhov rov qab osmosis effluent yog kwv yees li 300-500mg / L, uas tau ua raws li cov cai txwv ntawm World Health Organization rau cov dej haus TDS Performance index (500mg / L). SWRO tau siv rau kev siv dej haus ntawm qhov loj hauv thaj chaw tsis muaj dej. Xyoo 1980, SWRO pib sib tw nrog cov txheej txheem thermal ib txwm muaj. Vim muaj qhov zoo ntawm cov cuab yeej siv qis, kev tsim kho luv luv, kev siv hluav taws xob tsawg thiab ntau lwm yam zoo, SWRO tau tsim sai heev thiab tau dhau los ua cov txheej txheem tseem ceeb tshaj plaws hauv kev lag luam thoob ntiaj teb desalination. Tam sim no, thawj SWRO feem ntau yog siv hauv kev lag luam hauv nroog, uas yog vim li cas lub peev xwm ntawm cov txheej txheem rov qab osmosis tau loj hlob sai. Kev tshawb fawb yav tom ntej ntawm cov txheej txheem rov qab osmosis yuav tsom mus rau kev txhim kho ntau lub zog-txuag thiab ruaj khov tshiab rov qab osmosis daim nyias nyias thiab cov khoom siv membrane, txo cov kev siv hluav taws xob thiab kev tu cov nqi, thiab txo cov nqi ntawm cov dej ntau lawm.S19 kev

Hauv kev xyaum, rov qab osmosis system tau dhau los ua cov cuab yeej tseem ceeb hauv kev kho dej. Piv txwv li, hauv thaj chaw ntawm seawater desalination, rov qab osmosis systems tuaj yeem tshem tawm ntau dua 99% ntawm ntsev thiab lwm yam khoom tsis zoo los ntawm cov dej hiav txwv, ua tiav cov dej hiav txwv desalination. Hauv kev lag luam dej kho, rov qab osmosis system tuaj yeem muab cov txheej txheem dej zoo, txhim kho kev tsim khoom thiab cov khoom zoo. Hauv kev ua kom huv ntawm cov dej haus, rov qab osmosis system tuaj yeem tshem tawm ntau yam teeb meem hauv dej thiab muab cov dej haus zoo thiab noj qab haus huv. Nyob rau hauv luv luv, rov qab osmosis system yog ib tug npaum thiab ib puag ncig tus phooj ywg dej kho tshuab nrog ib tug ntau yam ntawm daim ntawv thov kev cia siab. Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, rov qab osmosis system yuav txuas ntxiv txhim kho thiab ua kom zoo dua qub, muab cov dej haus zoo dua thiab cov dej ua haujlwm rau tib neeg.