SWRO Seawater Desalination Solution ---- Kuchotsa Madzi a M'nyanja Reverse Osmosis System kwa Oyeretsa Madzi

Madzi ndiye gwero la moyo, ndi chilengedwe chamtengo wapatali komanso chosasinthika kwa anthu, komanso ndi moyo wa chitukuko cha anthu ndi zachuma. Kusowa kwa madzi ndi kuipitsidwa kwa madzi komwe kukuchulukirachulukira kwakhala cholepheretsa kupita patsogolo kwa anthu komanso chitukuko cha zachuma. Kuphatikiza pa kasamalidwe ka sayansi komanso kugawika bwino kwa zopezeka zamadzi, ndikofunikiranso kuwonetsetsa kuti njira zaukadaulo zapamwamba zakugwiritsanso ntchito madzi ndizofunikira kwambiri. Kuchotsa madzi a m'nyanja ndi njira yofunikira yothetsera kusowa kwa madzi. Pakadali pano, pakhala pali njira zambiri zochotsera madzi am'nyanja, makamaka kuphatikiza distillation, njira ya membrane, njira ya electrodialysis ndi njira yoziziritsa. Zina mwa izo, njira ya reverse osmosis (SWRO) ya njira ya nembanemba ndiyo yomwe ikukula mwachangu, ndalama zotsika kwambiri, zopulumutsa mphamvu zambiri komanso ukadaulo wotsika mtengo kwambiri wochotsa mchere. Reverse Osmosis System ndiukadaulo wothandiza komanso wosamalira zachilengedwe, womwe umagwiritsidwa ntchito kwambiri pakuchotsa madzi am'nyanja, kuyeretsa madzi m'mafakitale, kuyeretsa madzi akumwa ndi magawo ena.

Mfundo yogwirira ntchito ya reverse osmosis seawater desalination system imachokera paukadaulo wolekanitsa wa membrane. Ukadaulo wolekanitsa ma membrane ndi mtundu waukadaulo wolekanitsa ndi kuyeretsa zinthu zosiyanasiyana posankha kudutsa mafilimu a polima. Mu reverse osmosis desalination systems, filimu ya polima ndi mawonekedwe asymmetric opangidwa ndi kotekisi wandiweyani ndi wosanjikiza womasuka wothandizira. Dense cortex ndi sefa wosanjikiza wa nembanemba ndipo ili ndi kukula kwa pore kwa micrometer komwe kumalepheretsa zinthu zambiri zoimitsidwa, zinthu zosungunuka ndi tizilombo toyambitsa matenda kuti tisadutse. Chosanjikiza chothandizira ndi gawo lothandizira la nembanemba, lomwe lili ndi pore lalikulu ndipo limatha kutsimikizira mphamvu yamakina onse a nembanemba.

Kuchotsa mchere m'madzi a m'nyanja reverse osmosis system process

Njira za Reverse Osmosis Seawater Desalination (SWRO) zakhala ukadaulo wofunikira pantchito yochotsa mchere m'madzi a m'nyanja, zomwe zikupereka yankho lokhazikika ku vuto lomwe likukulirakulirakulira padziko lonse lapansi lakusowa kwa madzi. Njira ya reverse osmosis yamadzi am'nyanja imaphatikizapo njira zingapo zowonetsetsa kuti madzi akumwa apamwamba amapangidwa kuchokera m'madzi a m'nyanja. Kumvetsetsa kuchuluka kwa kayendedwe ka reverse osmosis ndikofunikira kuti mumvetsetse bwino komanso phindu lake. Dongosolo ladongosolo limaphatikizapo masitepe otsatirawa: 1.Kusefera koyambirira: Madzi a m'nyanja yaiwisi amayamba kudutsa fyuluta yoyamba kuti achotse bwino tinthu tambirimbiri, zolimba zoyimitsidwa ndi zonyansa zina. Kuchita zimenezi n’kofunika kwambiri pokonzekera madzi a m’nyanjayi kuti ayambe kukonzedwanso, kuonetsetsa kuti akuwakonza bwino kwambiri.

2. Sefa yachiwiri: Madzi osefa oyambilira amadutsa musefera wa kaboni wopangidwa kuti usefe wachiwiri. Cholinga cha sitejiyi ndikuchotsa zinthu zovulaza monga organic matter ndi chlorine yotsalira, kuyeretsanso madzi a m'nyanja, ndikukonzekera gawo lotsatira la chithandizo. 3. Kusefedwa mwatsatanetsatane: Madziwo amasefedwa mwatsatanetsatane kudzera mu fyuluta yolondola kuti apitirize kuchotsa tinthu, mabakiteriya ndi zonyansa zina. Izi zimatsimikizira kuti madziwo ayeretsedwa bwino asanalowe mkati mwa njira ya reverse osmosis. 4. Reverse Osmosis Membrane: Madzi osefedwa molondola amawongoleredwa kudzera mu nembanemba ya reverse osmosis, yomwe ndi gawo lalikulu la dongosolo. Reverse osmosis nembanemba zimathandiza kulekanitsa ndi kuchotsa mchere, organics, heavy metals, ndi zinthu zina kupanga madzi oyera, opanda mchere. 5. Kuphera tizilombo toyambitsa matenda ndi kasungidwe: Madzi akadutsa mumkanda wa reverse osmosis, amathiridwa mankhwala ophera tizilombo toyambitsa matenda. Kenako madzi oyeretsedwa amasungidwa m’matangi okonzeka kugaŵidwa ndi kugwiritsidwa ntchito.

Ubwino wa reverse osmosis machitidwe pakuchotsa mchere m'madzi am'nyanja ndi ambiri. Dongosololi lili ndi magwiridwe antchito apamwamba, kuteteza chilengedwe, kupulumutsa mphamvu ndi chitetezo. Ukadaulo wa reverse osmosis utha kuchotsa zinthu zowopsa zopitilira 99% monga mchere, zinthu zachilengedwe, zitsulo zolemera, ndi zina zambiri, kuwonetsetsa kuti madzi amadzimadzi amatulutsa madzi am'madzi am'nyanja ndikuthetsa kufunikira kofunikira kwamadzi atsopano. Ubwino wa chilengedwe wa machitidwe a reverse osmosis ndiwofunikanso. Mosiyana ndi njira zachikhalidwe zochotsera mchere m'madzi a m'nyanja, makina a RO safuna mankhwala ochulukirapo, satulutsa madzi oyipa, komanso ndi okonda zachilengedwe. Njira yokhazikika iyi yochotsera mchere imagwirizana ndi zoyesayesa zapadziko lonse zolimbikitsa njira zothanirana ndi chilengedwe komanso njira zotetezera madzi.

Kuphatikiza pazabwino zachilengedwe, makina osinthika a osmosis ndiwosamalitsa pang'ono, osavuta kugwiritsa ntchito, komanso oyenera m'malo osiyanasiyana amadzi. Zinthu izi zimapangitsa makina osinthira osmosis kukhala njira yothandiza komanso yodalirika yochotsera mchere, makamaka m'malo omwe mulibe madzi abwino ochepa. Mwachidule, njira ya reverse osmosis system pakuchotsa mchere imakhala ndi njira zingapo zomwe pamapeto pake zimatulutsa madzi akumwa abwino kuchokera m'madzi a m'nyanja. Pogwiritsa ntchito bwino, zopindulitsa zachilengedwe komanso kusinthika, makina osinthira osmosis ndiukadaulo wofunikira kuthana ndi kusowa kwa madzi ndikuwonetsetsa kuti madzi amchere azitha kupeza madzi abwino.

Kulowetsedwa ndi reverse osmosis

Reverse osmosis ndi njira yosinthira ya osmosis. Permeability ndizochitika zachilengedwe. Mamolekyu amadzi mu njira yochepetsera amatha kufalikira kudzera mu nembanemba yotha kulowa m'mphepete mwa njira yokhazikika mwachangu kwambiri. Monga momwe tawonetsera pachithunzichi, mulingo wamadzimadzi womwe uli kumbali yamadzi abwino upitilira kutsika, zomwe zimapangitsa kusiyana kwa hydrostatic pressure. Kusiyana kwa kuthamanga kwa hydrostatic panthawiyi kumatchedwa kuthamanga kwa osmotic (kuthamanga kwa osmotic pakati pa madzi a m'nyanja ndi madzi abwino ndi pafupifupi 2.4MPa).

Njira yosinthira osmosis ndiyosiyana. Mu SWRO, kupanikizika kwakukulu kuposa kuthamanga kwa osmotic kwa madzi a m'nyanja kumbali imodzi kumapangitsa kuti mamolekyu amadzi a m'madzi a m'nyanja adutse nembanemba ndipo mcherewo umatsekeka. Mwachidziwitso, mphamvu yakunja ikachuluka, m'pamenenso ma osmosis am'madzi amadzimadzi amadzimadzimadzimadzimadzimadzimadzimadzimadzimadzimadzikiranso. Chigawo chapakati cha njira ya reverse osmosis ndi nembanemba yopangira semi-permeable yomwe imalola kuti mamolekyu amadzi okha adutse. Nembanemba yathyathyathya ya nembanemba ya reverse osmosis iyenera kupangidwa kuti ipangidwe kuti isagwiritsidwe ntchito pokonza madzi. Masiku ano, pochotsa mchere m'madzi a m'nyanja, chinthu chonunkhira cha polyamide coil membrane chimagwiritsidwa ntchito kwambiri.

Madzi otulutsa diaphragm amayikidwa pakati pa zidutswa ziwiri zathyathyathyathya, ndipo wosanjikiza wa nembanemba amamangika pamodzi m'mbali zitatu za nembanemba wosanjikiza, kenaka amaphatikizana ndi chitseko cholowera m'madzi pamodzi ndikuvulala pachubu chapakati. Pomaliza, kapu yotsekerayo imayikidwa kumapeto onse awiri ndikumangika kuti ipangitse gawo la membrane. Zinthu zamalonda za reverse osmosis zimabwera mosiyanasiyana, zomwe zimagwiritsidwa ntchito kwambiri pa membrane pochotsa mchere wokhala ndi mainchesi 200 mm ndi kutalika kwa 1000mm.

SWRO imakhala ndi pampu yothamanga kwambiri, chotengera chopondereza, ndi chipangizo chothandizira mphamvu. Madzi a m'nyanja akakonzedwa kale ndikukanikizidwa mu chotengera chopondereza cha reverse osmosis unit ndi pampu yothamanga kwambiri, madzi a m'nyanja amayamba kudutsa pachinthu choyamba cha nembanemba ndikuyenda munjira yotchinga ya nembanemba yomwe imavulala mozungulira. Pansi pa kuthamanga kwambiri, mbali ya mamolekyu amadzi amadutsa mosalekeza kudzera mu nembanemba ndikulowa mu chubu chapakati cha chinthu chophimbidwa ndi nembanemba kudzera munjira yamadzi otchinga, ndikupanga madzi opangira. Madzi ena onse omwe amalowa akupitiriza kuyenda motsatira njira yopita ku chinthu china cha membrane. Njirayi ikuchitika motsatira. Pamene mphamvu madzi akudutsa lotsatira nembanemba chinthu, ndi chidwi madzi ndende ukuwonjezeka. Ikadutsa muchigawo chomaliza cha nembanemba, madzi okhudzidwa amakhala madzi okhazikika.

Mosiyana ndi njira yotenthetsera, SWRO ilibe njira yosinthira gawo la evaporation ndi condensation. Kugwiritsa ntchito mphamvu kwakukulu kwa SWRO ndi mphamvu yopopa mwamphamvu kwambiri kuti izindikire njira yosinthira ya osmosis, zomwe zimapangitsa kuti mtengo wopangira madzi a reverse osmosis ukhale wotsika kuposa njira yamafuta. Kuphatikiza apo, poyerekeza ndi njira yotenthetsera, zida zake zimakhalanso ndi mawonekedwe amodular komanso kusinthasintha kwapamwamba. Kuyimitsidwa ndi kukonza malo am'deralo sikungakhudze magwiridwe antchito a dongosolo lonselo. Komabe, SWRO imafuna njira yovuta komanso yabwino yopangira mankhwala, ndipo opanga ma membrane osiyanasiyana amafunikira kwambiri pa SDI, pH, kutentha, chlorine yotsalira ndi zizindikiro zina za polyamide reverse osmosis membrane. Pamene pretreatment si kwa muyezo, kuipitsa ndi makulitsidwe wa nembanemba pamwamba adzakhala imathandizira, ndi moyo utumiki, mowa mphamvu ndi mankhwala khalidwe madzi a nembanemba gawo adzakhudzidwa ntchito, motero kuonjezera mtengo wa madzi kupanga.

Chipangizo chobwezeretsa mphamvu ndi chida china chofunikira. Kukula kwachangu kwa SWRO kumabwera chifukwa chogwiritsa ntchito chipangizo chobwezeretsa mphamvu ndikuchulukirachulukira mu reverse osmosis system kuphatikiza kukhathamiritsa kosalekeza kwa zida za membrane ndi zida za membrane. Masiku ano, mayunitsi ogwira mtima kwambiri amtundu wa PX amatha kupezanso mphamvu yopitilira 95% m'madzi okhazikika ndikuupaka m'madzi a m'nyanja, ndikuchepetsa kugwiritsa ntchito mphamvu za reverse osmosis ndi pafupifupi theka. TDS ya primary reverse osmosis effluent ndi pafupifupi 300-500mg / L, yomwe yakwaniritsa zofunikira zochepa za World Health Organization pakumwa madzi a TDS index (500mg/L). SWRO yakhala ikugwiritsidwa ntchito popereka madzi akumwa pamlingo waukulu m'malo opanda madzi. M'zaka za m'ma 1980, SWRO inayamba kupikisana ndi chikhalidwe cha kutentha. Chifukwa chazabwino zogulira zida zotsika, kamangidwe kakang'ono, kugwiritsa ntchito mphamvu pang'ono ndi zabwino zina zambiri, SWRO yakula mwachangu ndipo yakhala njira yofunika kwambiri pamsika wapadziko lonse lapansi wochotsa mchere. Pakadali pano, SWRO yoyambirira imagwiritsidwa ntchito kwambiri m'makampani am'matauni, ndichifukwa chake mphamvu yosinthira osmosis ikukula mwachangu. Kafukufuku wamtsogolo wokhudza reverse osmosis process adzayang'ana kwambiri pakupanga njira zopulumutsira mphamvu zowonjezera komanso zokhazikika zatsopano za reverse osmosis membrane ndi nembanemba, kuchepetsa kugwiritsa ntchito mphamvu zamagetsi ndi kukonza, ndikuchepetsa mtengo wopangira madzi. S19 gawo

M'malo mwake, reverse osmosis system yakhala ukadaulo wofunikira pantchito yopangira madzi. Mwachitsanzo, pankhani yochotsa mchere m'madzi a m'nyanja, makina osinthira osmosis amatha kuchotsa mchere wopitilira 99% ndi zinthu zina zoyipa m'madzi a m'nyanja, ndikupangitsa kuti madzi a m'nyanja asungunuke bwino. M'malo opangira madzi m'mafakitale, reverse osmosis system imatha kupereka madzi apamwamba kwambiri, kukonza magwiridwe antchito komanso mtundu wazinthu. Pankhani yoyeretsa madzi akumwa, reverse osmosis system imatha kuchotsa zinthu zovulaza m'madzi ndikupereka madzi akumwa otetezeka komanso athanzi. Mwachidule, reverse osmosis system ndiukadaulo wothandiza komanso wosamalira zachilengedwe wokhala ndi chiyembekezo chogwiritsa ntchito. Ndikukula kosalekeza kwa sayansi ndi ukadaulo, reverse osmosis system ipitiliza kuwongolera ndi kukhathamiritsa, kupereka madzi abwino akumwa ndi madzi am'mafakitale kwa anthu.