Iyo EDI (Electrodeionization) system inoshandisa yakasanganiswa ion exchange resin kune adsorb cations uye anions mumvura mbishi.Iwo adsorbed ions anobva abviswa kuburikidza nekupfuura nepakati uye anion exchange membranes pasi pechiito cheyakananga ikozvino voltage.Iyo EDI sisitimu inowanzo sanganisira akawanda maviri maviri eanochinjanisa anion uye cation ekuchinjana membranes uye spacers, ichigadzira concentrate compartment uye dilute compartment (kureva, cations anogona kupinda kuburikidza ne cation exchange membrane, nepo anion inogona kupinda kuburikidza neanion exchange membrane).
Muchikamu che dilute, cations mumvura inotamira kune electrode yakaipa uye inopfuura nepakati cation exchange membrane, iyo inobatwa ne anion exchange membrane mu concentrate compartment;maanioni ari mumvura anotamira kune yakanaka electrode uye anopfuura nepakati anion exchange membrane, apo anobatwa ne cation exchange membrane mu concentrate compartment.Nhamba yeioni mumvura inoderera zvishoma nezvishoma apo inopfuura nepakati pemvura yakasvibiswa, zvichiita kuti iwane mvura yakacheneswa, nepo kusanganiswa kweionic mhando muchikamu checoncentrate kunoramba kuchiwedzera, zvichiita kuti mvura iwedzere.
Naizvozvo, iyo EDI sisitimu inozadzisa chinangwa che dilution, kucheneswa, kuisa pfungwa, kana kunatswa.Iyo ion exchange resin inoshandiswa mukuita uku inoramba ichigadzirwa patsva nemagetsi, saka haidi kuvandudzwa neasidhi kana alkali.Iyi tekinoroji nyowani mumidziyo yemvura yakacheneswa EDI inogona kutsiva midziyo yechinyakare yekuchinjanisa ion kugadzira mvura yakachena inosvika 18 MΩ.cm.
Zvakanakira zveEDI Yakanatswa Mvura Equipment System:
1. Hapana asidi kana alkali kuvandudzwa kunodiwa: Mumubhedha wakavhenganiswa wegadziriro, resin inoda kuvandudzwa nemakemikari, asi EDI inobvisa kubata kwezvinhu izvi zvinokuvadza uye basa rinotyisa.Izvi zvinodzivirira zvakatipoteredza.
2. Kuenderera mberi uye kushanda kwakareruka: Mumubhedha wakavhenganiswa hurongwa, kushandiswa kwekushanda kunova kwakaoma nekuda kwekuchinja kwehutano hwemvura nekuvandudzwa kwega kwega, apo nzira yekugadzira mvura muEDI yakagadzikana uye inopfuurira, uye hutano hwemvura hunogara huripo.Iko hakuna maitiro akaomarara ekushanda, zvichiita kuti kushanda kuve nyore.
3. Zvido zvekuisa pasi: Zvichienzaniswa nemabhedha akavhenganiswa maitiro anobata huwandu hwemvura yakafanana, EDI masisitimu ane vhoriyamu diki.Ivo vanoshandisa modular dhizaini inogona kuvakwa inochinjika zvichienderana nehurefu uye nzvimbo yenzvimbo yekuisa.Iyo modular dhizaini inoitawo kuti zvive nyore kuchengetedza EDI system panguva yekugadzira.
Organic nyaya kusvibiswa idambudziko rakajairika muindasitiri yeRO, iyo inoderedza mitengo yekugadzirwa kwemvura, inowedzera inlet pressure, uye inoderedza desanation rates, zvichikonzera kudzikira kweiyo RO system kushanda.Kana isina kurapwa, membrane inokuvadza zvachose.Biofouling inokonzera kuwedzera kwekumanikidzwa kusiyanisa, kuumba nzvimbo dzakaderera-kuyerera kwepamusoro pe membrane, iyo inowedzera kuumbwa kwecolloidal fouling, inorganic fouling, uye microbial kukura.
Pakati pematanho ekutanga ebiofouling, mwero wekugadzirwa kwemvura unodzikira, mutsauko wekupinda mukati unowedzera, uye chiyero che desalination chinoramba chisina kuchinjika kana kuwedzera zvishoma.Sezvo iyo biofilm inoumbwa zvishoma nezvishoma, mwero wekubvisa salination unotanga kudzikira, ukuwo colloidal fouling uye inorganic fouling inowedzerawo.
Organic kusvibiswa kunogona kuitika mukati me membrane system uye pasi pemamwe mamiriro, inogona kukurumidza kukura.Naizvozvo, iyo biofouling mamiriro mune pretreatment mudziyo unofanirwa kutariswa, kunyanya yakakodzera pombi system ye pretreatment.
Izvo zvakakosha kuti uone uye ubate iyo yakasvibiswa mumatanho ekutanga ekusvibiswa kwezvinhu zvakasikwa sezvo zvinova zvakanyanya kuoma kubata nazvo kana iyo microbial biofilm yakagadzira kusvika pamwero wakati.
Matanho chaiwo ekuchenesa organic zvinhu ndeaya:
Danho 1: Wedzera alkaline surfactants pamwe ne chelating agents, izvo zvinogona kuparadza organic blockages, zvichiita kuti biofilm isakara uye iparare.
Kuchenesa mamiriro: pH 10.5, 30 ℃, kutenderera uye soak kwe4 maawa.
Nhanho yechipiri: Shandisa zvisiri-oxidizing agents kubvisa tupukanana, kusanganisira bhakitiriya, mbiriso, uye fungi, uye kubvisa organic zvinhu.
Mamiriro ekuchenesa: 30 ℃, kuchovha bhasikoro kwemaminetsi makumi matatu kusvika kumaawa akati wandei (zvichienderana nerudzi rwekuchenesa).
Danho rechitatu: Wedzera alkaline surfactants pamwe ne chelating agents kubvisa microbial uye organic matter zvidimbu.
Kuchenesa mamiriro: pH 10.5, 30 ℃, kutenderera uye soak kwe4 maawa.
Zvichienderana nemamiriro ezvinhu chaiwo, acidic cleaning agent inogona kushandiswa kubvisa yakasara inorganic fouling mushure meChikamu 3. Kurongeka kwekuchenesa makemikari anoshandiswa kunokosha, sezvo mamwe humic acids inogona kuva yakaoma kubvisa pasi pemamiriro e acidic.Mukushaikwa kweiyo determinate sediment properties, zvinokurudzirwa kushandisa alkaline cleaning agent kutanga.
Ultrafiltration inzira yekuparadzanisa membrane yakavakirwa pamusimboti wekuparadzanisa sieve uye inotungamirwa nekumanikidza.Kurongeka kwesefa kuri mukati meiyo 0.005-0.01μm.Inogona kunyatso kubvisa zvimedu, colloids, endotoxins, uye yakakwira-molecular-uremu organic zvinhu mumvura.Inogona kushandiswa zvakanyanya mukuparadzaniswa kwezvinhu, kuisa pfungwa, uye kuchenesa.Iyo ultrafiltration process haina kushanduka kwechikamu, inoshanda pakupisa kwekamuri, uye inonyanya kukodzera kuparadzaniswa kwezvinhu zvinopisa zvinopisa.Iyo ine yakanaka tembiricha kuramba, acid-alkali kuramba, uye oxidation kuramba, uye inogona kushandiswa nguva dzose pasi pemamiriro epH 2-11 uye tembiricha iri pasi pe60 ℃.
Iyo yekunze dhayamita yehollow fiber ndeye 0.5-2.0mm, uye dhayamita yemukati ndeye 0.3-1.4mm.Rusvingo rwehollow fiber chubhu yakafukidzwa nemamicropores, uye saizi yepore inotaridzwa maererano nehuremu hwemamorekuru echinhu chinogona kubatwa, neremu yehuremu hwekuvharira huwandu hwezviuru zvakati kusvika kumazana akati wandei.Mvura yakasvibirira inoyerera pasi pekumanikidzwa kunze kana mukati megomba fiber, zvichiteerana ichigadzira yekunze yekumanikidza mhando uye yemukati yekumanikidza mhando.Ultrafiltration isimba rekusefa, uye zvinhu zvakabatwa zvinogona kuburitswa zvishoma nezvishoma nekudzikamisa, pasina kuvharira membrane pamusoro, uye inogona kushanda ichienderera kwenguva yakareba.
Zvimiro zveUF Ultrafiltration Membrane Filtration:
1. Iyo UF system ine yakakwirira yekudzoreredza mwero uye yakaderera yekushanda kumanikidza, iyo inogona kuwana kucheneswa kwakanaka, kupatsanurwa, kucheneswa, uye kusangana kwezvinhu.
2. Iyo UF system yekuparadzanisa maitiro haina shanduko yechikamu, uye haina kukanganisa kuumbwa kwezvinhu.Kupatsanura, kucheneswa, uye maitiro ekugadzirisa anogara ari pamhepo tembiricha, kunyanya akakodzera kurapwa kwezvinhu zvinopisa zvinopisa, kudzivirira zvachose kushata kwekukuvadza kwekushisa kwakanyanya kune biological inoshanda zvinhu, uye kuchengetedza zvinobudirira zvinhu zvebhayoroji zvinoshanda uye zvinovaka muviri zvinovaka muviri. yepakutanga zvinhu system.
3. Iyo UF sisitimu ine yakaderera simba rekushandisa, mapfupi ekugadzira madhigirii, uye yakaderera mitengo yekushandisa zvichienzaniswa neyechinyakare maitiro emidziyo, iyo inogona kunyatso kudzikisa mutengo wekugadzira uye kugadzirisa hupfumi hwemabhizinesi.
4. UF system ine advanced process design, high degree of integration, compact structure, small footprint, nyore kushanda nekugadzirisa, uye kuderera kwekushanda kwevashandi.
Chiyero chekushandisa cheUF ultrafiltration membrane filtration:
Inoshandiswa pre-kurapwa kwemidziyo yemvura yakacheneswa, kucheneswa kwezvinwiwa, mvura yekunwa, uye mvura yemamineral, kupatsanurwa, kuisa pfungwa, uye kucheneswa kwezvigadzirwa zvemaindasitiri, kugadzirwa kwemvura yakasviba mumaindasitiri, pendi ye electrophoretic, uye kurapwa kwe electroplating ine mafuta tsvina.
Variable frequency inogara ichimanikidza mvura yekupa michina inoumbwa neinosiyana frequency control kabati, otomatiki control system, pombi yemvura unit, kuremote yekutarisa system, pressure buffer tank, pressure sensor, etc. Inogona kuona kugadzikana kwemvura pakupera kwekushandiswa kwemvura, yakagadzikana. hurongwa hwekupa mvura, uye kuchengetedza simba.
Kuita kwayo uye maitiro:
1. Yakakwirira dhigirii ye otomatiki uye yakangwara mashandiro: Iyo midziyo inodzorwa neane hungwaru yepakati processor, kushanda uye kuchinjika kwepombi yekushanda uye pombi yekumira zviri otomatiki zvakakwana, uye zvikanganiso zvinongotaurwa, kuitira kuti mushandisi akurumidze kuziva. chikonzero chekukanganisa kubva kumunhu-muchina interface.Iyo PID yakavharwa-loop regulation inogamuchirwa, uye iyo inogara ichimanikidza kurongeka kwakakwira, ine kudiki kwemvura kushanduka.Neakasiyana-siyana akaseti mabasa, anogona zvechokwadi kuwana isina kutarisirwa kushanda.
2. Kudzora kunonzwisisika: Multi-pombi circulation soft start control inogamuchirwa kuti ideredze kukanganisa uye kupindira pane grid simba rinokonzerwa nekutanga kwakananga.Nheyo yekushanda yepombi huru inotanga ndeye: kutanga kuvhura uye wozomira, tanga wamira uye wozovhura, mikana yakaenzana, iyo inobatsira pakuwedzera hupenyu hweyuniti.
3. Mabasa akazara: Iine mabasa akasiyana-siyana ekudzivirira otomatiki akadai seyakawandisa, pfupi pfupi, uye overcurrent.Midziyo inomhanya yakadzikama, yakavimbika, uye iri nyore kushandisa nekuchengetedza.Iyo ine mabasa akadai sekumisa pombi kana paine kushomeka kwemvura uye otomatiki kushandura pombi yemvura kushanda panguva yakatarwa.Panyaya yenguva yenguva yekupihwa kwemvura, inogona kusetwa seyakagadziriswa switch yekudzora kuburikidza nepakati control unit musystem kuti iwane nguva yekuchinjisa yepombi yemvura.Kune matatu maitiro ekushanda: manual, otomatiki, uye nhanho imwe chete (inongowanikwa chete kana paine touch screen) kusangana nezvinodiwa pasi pemamiriro akasiyana ekushanda.
4. Remote monitoring (optional function): Kubva pakudzidza zvizere zvigadzirwa zvemumba nekunze uye zvinodiwa nemushandisi uye kusanganisa neruzivo rweotomatiki rwevashandi vehunyanzvi kwemakore mazhinji, hungwaru hwekutonga hurongwa hwemidziyo yekupa mvura yakagadzirirwa kutarisa uye kuongorora hurongwa. vhoriyamu yemvura, kudzvinyirirwa kwemvura, chiyero chemvura, nezvimwewo kuburikidza neinternet kure kutarisa, uye kutarisa zvakananga uye kurekodha mamiriro ekushanda kwehurongwa uye kupa mhinduro chaiyo-nguva kuburikidza neiyo ine simba yekumisikidza software.Iyo data yakaunganidzwa inogadziriswa uye inopiwa kune network dhatabhesi manejimendi yehurongwa hwese kubvunza uye kuongorora.Inogona zvakare kushandiswa uye kuongororwa kure kuburikidza neInternet, kuongorora kukanganisa uye kugovana ruzivo.
5. Hutsanana uye Kuchengetedza Simba: Nekushandura kukurumidza kwemotokari kuburikidza nekusiyana-siyana kwekutonga, kushandiswa kwemushandisi network kunogona kuchengetwa nguva dzose, uye simba rekuchengetedza simba rinogona kusvika ku60%.Iyo yekumanikidza kuyerera panguva yakajairika mvura yekupihwa inogona kudzorwa mukati me ± 0.01Mpa.
1. Iyo sampling nzira ye-ultra-pure water inosiyana zvichienderana neprojekti yekuyedza uye inodiwa hunyanzvi hwekuita.
Kuongororwa kusiri kwepamhepo: Sampu yemvura inofanira kuunganidzwa pachine nguva uye kuongororwa nekukurumidza sezvinobvira.Iyo sampling poindi inofanirwa kuve inomiririra sezvo ichikanganisa zvakananga mhinduro dze data.
2. Kugadzirira kwemudziyo:
Kusampling yesilicon, cations, anions uye zvimedu, polyethylene midziyo yepurasitiki inofanira kushandiswa.
Kune sampling yeyakazara organic kabhoni uye microorganisms, mabhodhoro egirazi ane pasi magirazi anomisa anofanirwa kushandiswa.
3. Kugadzira nzira yemasampling mabhodhoro:
3.1 Kuongorora uye kuongororwa kwesilicon yakazara: Nyura mabhodhoro matatu e500 mL emabhodhoro emvura yakachena kana hydrochloric acid mabhodhoro ane hutsanana hwakakwira kupfuura hutsanana hwepamusoro mu1mol hydrochloric acid usiku humwe, geza nemvura yakanyanyisa-yakachena kanopfuura kagumi (nguva yega yega, zunza zvine simba kweminiti 1 neinenge 150 mL yemvura yakachena uye wobva warasa uye dzokorora kuchenesa), uzadze iwo nemvura yakachena, chenesa chivharo chebhodhoro nemvura yakanyanyisa-yakachena, isimbise zvakasimba, uye rega imire usiku hwose.
3.2 Yekuongorora anion uye chidimbu: Nyura mabhodhoro matatu e500 mL emabhodhoro emvura chaiwo kana mabhodhoro eH2O2 ane mwero wekuchena wakakwira kupfuura kuchena kwepamusoro mu1mol NaOH mhinduro husiku, woachenesa sezvakaita 3.1.
3.4 Kuongorora tupukanana uye TOC: Zadza 3 mabhodhoro e50mL-100mL mabhodhoro egirazi epasi ane potassium dichromate sulfuric acid yekuchenesa mhinduro, avhare, anyure muasidhi kwehusiku hwose, ageze nemvura ine ultra-pure kanopfuura kagumi (nguva yega yega. , zunza zvakasimba kweminiti 1, bvisa, uye dzokorora kucheneswa), chenesa chivharo chebhodhoro nemvura yakanyanyisa-yakachena, uye isimbise zvakasimba.Wobva wadziisa muhudzvinyiriri hwepamusoro ** poto yemhepo inotsikirira yakanyanya kwemaminetsi makumi matatu.
4. Sampling nzira:
4.1 Kuongorora anion, cation uye particle, usati watora sampuli yepamutemo, durura mvura mubhodhoro uye wogeza kanopfuura ka10 nemvura yakanyanyisa-yakachena, wobva wabaya 350-400mL yemvura yakanyanyisa-pure kamwe chete, yakachena. chivharo chebhodhoro nemvura yakanyanyisa-yakachena uye woisimbisa zvakasimba, uye woiisa muhombodo yepurasitiki yakachena.
4.2 Yekuongorora microorganism uye TOC, durura mvura iri mubhodhoro nekukurumidza usati watora sampuro, rizadze nemvura yakachena, uye uiname nekukasika nevharo rebhodhoro rakavharwa wobva wainamira mubhegi repurasitiki rakachena.
Polishing resin inonyanya kushandiswa adsorb uye kuchinjanisa uwandu hwemaion mumvura.Iko kupinza kwemagetsi kupikisa kukosha kunowanzo kuve kwakakura kupfuura 15 megaohms, uye iyo yekupukuta resin sefa iri kumagumo eiyo yekupedzisira-yakachena mvura yekurapa system (maitiro: maviri-nhanho RO + EDI + polishing resin) kuve nechokwadi chekuti system inoburitsa mvura. kunaka kunogona kusangana nemaitiro ekushandiswa kwemvura.Kazhinji, iyo inobuda mhando yemvura inogona kudzikamiswa kusvika pamusoro pe18 megaohms, uye ine kumwe kutonga kugona pamusoro peTOC neSiO2.Ioni mhando dzekupolisha resin iH uye OH, uye dzinogona kushandiswa zvakananga mushure mekuzadza pasina kuvandudzwa.Iwo anowanzo shandiswa mumaindasitiri ane yakakwirira mhando yemvura zvinodiwa.
Aya mapoinzi anotevera anofanirwa kucherechedzwa kana uchitsiva polishing resin:
1. Shandisa mvura yakachena kuchenesa tangi resefa usati watsiviwa.Kana mvura ichida kuwedzerwa kuti ifambise kuzadza, mvura yakachena inofanira kushandiswa uye mvura yacho inofanira kubva yanyudzwa kana kubviswa mushure mekunge resin yapinda mutangi resin kuti isaita resin stratification.
2. Kana uchizadza resin, midziyo inosangana neresin inofanira kucheneswa kudzivirira mafuta kuti asapinda mutangi resin filter.
3. Paunenge uchitsiva resin yakazadzwa, iyo yepakati chubhu uye muunganidzi wemvura inofanira kucheneswa zvachose, uye hapafaniri kuva nemarara ekare pasi petangi, kana zvikasadaro aya akashandiswa anosvibisa mvura.
4. Mhete yeO-ring seal inoshandiswa inofanira kuchinjwa nguva dzose.Panguva imwecheteyo, zvikamu zvakakosha zvinofanirwa kuongororwa uye nekukurumidza kutsiviwa kana zvakakuvadzwa panguva yekutsiviwa kwega kwega.
5. Paunenge uchishandisa FRP filter tank (inowanzozivikanwa sefiberglass tank) sebhedha resin, muunganidzi wemvura anofanira kusiiwa mutangi asati azadza resin.Munguva yekuzadza, muunganidzi wemvura anofanira kuzununguswa nguva nenguva kuti agadzirise nzvimbo yayo uye kuisa chivharo.
6. Mushure mekuzadza resin uye nekubatanidza pombi yesefa, vhura gomba riri pamusoro petangi resefa kutanga, zvishoma nezvishoma udira mumvura kusvika gomba remhepo rapfachukira uye pasisina mabubble abuda, wobva wavhara buri rekubuda kuti utange kugadzira. mvura.
Midziyo yemvura yakacheneswa inoshandiswa zvakanyanya mumaindasitiri akadai semishonga, cosmetics, uye chikafu.Parizvino, maitiro makuru anoshandiswa maviri-nhanho reverse osmosis tekinoroji kana maviri-nhanho reverse osmosis + EDI tekinoroji.Izvo zvikamu zvinosangana nemvura zvinoshandisa SUS304 kana SUS316 zvinhu.Yakasanganiswa neyakaumbwa maitiro, ivo vanodzora iyo ion yemukati uye microbial kuverenga mumhando yemvura.Kuti uve nechokwadi chekushanda kwakadzikama kwemidziyo uye hutano hwemvura hunoenderana pakupera kwekushandiswa, zvinodikanwa kusimbisa kuchengetedza uye kuchengetedza michina mukutonga kwezuva nezuva.
1. Gara uchitsiva sefa katuriji uye zvinobatika, nyatso tevera dhizaini yekushandisa bhuku kutsiva zvine chekuita nekushandisa;
2. Gara uchiongorora mamiriro ekushandisa emidziyo nemaoko, sekukonzeresa chirongwa chekuchenesa kusati kwaitwa, uye kutarisa mabasa ekudzivirira akadai senge under-voltage, overload, mvura yemhando inodarika zviyero uye fluid level;
3. Tora sampuli pane imwe neimwe node nguva nenguva kuti uve nechokwadi chekuita kwechikamu chimwe nechimwe;
4. Kunyatsotevera maitiro ekushanda kuti uongorore mamiriro ekushanda emidziyo uye rekodha yakakodzera technical operating parameters;
5. Gara uchidzora kupararira kwehutachiona mumidziyo uye kutumira mapaipi zvinobudirira.
Midziyo yemvura yakacheneswa inowanzo shandisa reverse osmosis kurapwa tekinoroji kubvisa tsvina, munyu, uye zvitubu zvekupisa kubva pamitumbi yemvura, uye inoshandiswa zvakanyanya mumaindasitiri akadai semishonga, zvipatara, uye biochemical chemical industry.
Iyo yakakosha tekinoroji yemidziyo yemvura yakacheneswa inoshandisa maitiro matsva senge reverse osmosis uye EDI kugadzira seti yakakwana yemvura yakacheneswa nzira yekurapa ine zvinhu zvakanangwa.Saka, midziyo yemvura yakacheneswa inofanira kuchengetedzwa uye kuchengetedzwa sei zuva nezuva?Mazano anotevera anogona kubatsira:
Masefa ejecha uye mafirita ekabhoni anofanira kucheneswa kanenge mazuva maviri kana matatu ega ega.Chenesa sefa yejecha kutanga uye ipapo sefa kabhoni.Ita backwashing usati wageza mberi.Quartz jecha rinoshandiswa rinofanirwa kutsiviwa mushure memakore matatu, uye activated carbon consumables inofanira kutsiviwa mushure memwedzi gumi nemasere.
Iyo precision sefa inongoda kudirwa kamwe chete pasvondo.Iyo PP sefa chinhu mukati meiyo chaiyo sefa inofanirwa kucheneswa kamwe chete pamwedzi.Iyo sefa inogona kupatsanurwa uye kubviswa kubva mugomba, yosukurudzwa nemvura, uye yozobatanidzwazve.Inokurudzirwa kuitsiva mushure memwedzi inenge mitatu.
Jecha requartz kana activated carbon mukati mejecha sefa kana kabhoni sefa inofanira kucheneswa nekutsiviwa mwedzi gumi nemiviri yega yega.
Kana iyo midziyo isingashandiswe kwenguva yakareba, zvinokurudzirwa kumhanya kanenge maawa maviri mazuva ese maviri.Kana iyo michina yakavharwa husiku, iyo quartz jecha sefa uye activated kabhoni sefa inogona kugezwa kumashure uchishandisa mvura yemupombi semvura mbishi.
Kana kudzikiswa zvishoma nezvishoma kwekugadzirwa kwemvura ne15% kana kudzikira zvishoma nezvishoma kwemhando yemvura kwakadarika mwero hakukonzerwi nekupisa uye kudzvanywa, zvinoreva kuti reverse osmosis membrane inoda kucheneswa nemakemikari.
Panguva yekushanda, kukanganisa kwakasiyana-siyana kunogona kuitika nekuda kwezvikonzero zvakasiyana.Mushure mekunge dambudziko raitika, tarisa rekodhi yekushanda zvakadzama uye ongorora chikonzero chekukanganisa.
Zvimiro zvemidziyo yemvura yakacheneswa:
Yakareruka, yakavimbika, uye iri nyore-kuisa-kugadzika dhizaini.
Midziyo yese yakacheneswa yekuchenesa mvura inogadzirwa neyemhando yepamusoro simbi isina tsvina, inotsvedzerera, isina makona akafa, uye iri nyore kuchenesa.Inoshingirira mukuora uye kudzivirira ngura.
Yakananga kushandisa mvura yemupombi kugadzira mvura isina kucheneswa yakacheneswa inogona kutsiva zvachose mvura yakadirwa uye mvura yakapetwa kaviri.
Izvo zvakakosha zvikamu (reverse osmosis membrane, EDI module, nezvimwewo) zvinotengeswa kunze kwenyika.
Iyo yakazara otomatiki otomatiki system (PLC + yemunhu-muchina interface) inogona kuita inoshanda otomatiki kugeza.
Zviridzwa zvinobva kunze kwenyika zvinokwanisa kunyatsoongorora, kuenderera mberi, uye kuratidza kunaka kwemvura.
Reverse osmosis membrane chinhu chakakosha kugadzirisa chikamu che reverse osmosis yakachena mvura michina.Kucheneswa uye kupatsanurwa kwemvura kunotsamira pane membrane unit kuti ipedze.Kuisirwa kwakaringana kwechinhu chemembrane kwakakosha kuti uve nechokwadi chekushanda kwakajairwa kweiyo reverse osmosis midziyo uye yakagadzikana mhando yemvura.
Kuisa Nzira yeReverse Osmosis Membrane kune Yakachena Mvura Equipment:
1. Chekutanga, simbisa iyo yakatarwa, modhi, uye uwandu hwe reverse osmosis membrane element.
2. Isa iyo O-ring pane yekubatanidza fitting.Pakuisa, mafuta ekuzora akadai seVaseline anogona kuiswa paO-ring sezvinodiwa kudzivirira kukanganisa kuO-ring.
3. Bvisa mahwendefa ekupedzisira pamagumo ose emudziyo wekumanikidza.Shamba dhishi yakavhurwa nemvura yakachena uye chenesa madziro emukati.
4. Maererano negwaro regungano remudziyo wekumanikidza, isa ndiro yekumisa uye ndiro yekupedzisira padivi remvura yakadzika yemudziyo wekumanikidza.
5. Isa RO reverse osmosis membrane element.Isa mugumo we membrane element pasina mvura yemunyu yekuisa chisimbiso mhete inopindirana mudivi rekupa mvura (kumusoro) kwemudziyo wekumanikidza, uye zvishoma nezvishoma sundira 2/3 yechinhu mukati.
6. Panguva yekuisa, sundidzira reverse osmosis membrane shell kubva kumagumo ekupinza kusvika kumagumo emvura.Kana iyo yakaiswa mu reverse, inokonzeresa kukuvadza kune yakadzika chisimbiso chemvura uye membrane element.
7. Isa plug yekubatanidza.Mushure mekuisa iyo membrane element mumudziyo wekumanikidza, isa chinongedzo chekubatanidza pakati pezvinhu mukati mepombi yepakati pekugadzirwa kwemvura yechinhu, uye sezvinodiwa, shandisa silicone-based lubricant paO-ring yejoini isati yaiswa.
8. Mushure mekuzadza nezvose reverse osmosis membrane elements, isa pombi yekubatanidza.
Iri pamusoro ndiyo nzira yekuisa reverse osmosis membrane yemidziyo yemvura yakachena.Kana ukasangana nematambudziko panguva yekuisa, ndapota inzwa wakasununguka kutibata nesu.
Iyo mechanical filter inonyanya kushandiswa kuderedza turbidity yemvura mbishi.Mvura yakasvibira inotumirwa mumechanical sefa yakazadzwa nemhando dzakasiyana dzejecha requartz rakafanana.Nokushandisa kusvibiswa kwekudzivirira kwejecha requartz, zvikamu zvakakura zvakasimirirwa uye colloids mumvura zvinogona kubviswa zvakanaka, uye kusvibiswa kwemvura kunenge kuri pasi pe1mg / L, kuve nechokwadi chekushanda kwemaitiro anotevera ekurapa.
Coagulants inowedzerwa kune pombi yemvura yakasvibirira.Iyo coagulant inopinda ion hydrolysis uye polymerization mumvura.Zvigadzirwa zvakasiyana kubva kuhydrolysis uye kuunganidza zvakashongedzwa zvine simba necolloid zvimedu zviri mumvura, zvichidzikisa chepuremendi yekuchaja uye kupararira ukobvu panguva imwe chete.Iyo particle repulsion kugona inoderera, ivo vanoswedera pedyo uye vanobatana.Iyo polymer inogadzirwa ne hydrolysis ichave yakashongedzwa neaviri kana anopfuura colloid kuti ibudise mabhiriji ekubatanidza pakati pezvimedu, zvishoma nezvishoma kugadzira flocs hombe.Kana mvura yakasvibirira ichipfuura nepa mechanical filter, inozochengetwa nejecha sefa zvinhu.
Iyo adsorption yemechanic sefa ndeye yemuviri adsorption maitiro, ayo anogona kukamurwa kuita nzvimbo yakasununguka (coarse jecha) uye nzvimbo ine dense (jecha rakanaka) zvinoenderana nekuzadza nzira yefirita.Mishonga yekumisikidza inonyanya kuumba kusangana kwakabatana munzvimbo yakasununguka nekuyerera kwekubata, saka nzvimbo iyi inogona kubata zvimedu zvakakura.Munzvimbo yakamanikana, kubira kunonyanya kuenderana nekudhumhana kweinertia uye kunyura pakati pezvimedu zvakamiswa, saka nzvimbo iyi inogona kubata zvimedu zvidiki.
Kana iyo mechanical sefa yakakanganiswa nekunyanya kusvibiswa kwemagetsi, inogona kucheneswa nekugezeswa kumashure.Reverse inflow of water and compressed air musanganiswa inoshandiswa kupeperesa nekukwesha jecha sefa layer musefa.Zvinhu zvakabatwa zvakanamatira pamusoro pejecha requartz zvinogona kubviswa uye kutakurwa nekuyerera kwemvura yekumashure, iyo inobatsira kubvisa sediment uye zvinhu zvakamiswa musefa layer uye kudzivirira kuvharika kwezvinhu.Iyo sefa zvinhu inodzoreredza iyo inosvibisa yekubira kugona zvizere, kuzadzisa chinangwa chekuchenesa.Iyo backwash inodzorwa neinopinza uye yekubuda pressure musiyano paramita kana kuchenesa nguva, uye chaiyo yekuchenesa nguva inoenderana nekusagadzikana kwemvura mbishi.
Mukugadzira mvura yakachena, mamwe maitiro ekutanga akashandisa ion exchange yekurapa, kushandisa mubhedha wecation, anion bed, uye yakasanganiswa mubhedha wekugadzira tekinoroji.Ion exchange inzira yakakosha yekunyudza iyo inogona kutora imwe cation kana anion kubva mumvura, kuchinjanisa nechiyero chakaenzana cheimwe iyoni nechaji yakafanana, uye yoiburitsa mumvura.Izvi zvinonzi ion exchange.Zvinoenderana nemhando dzeiyoni dzakatsinhaniswa, ion exchange agents inogona kukamurwa kuita cation exchange agents uye anion exchange agents.
Hunhu hwekusvibiswa kweorganic kweanion resin mumidziyo yemvura yakachena ndeiyi:
1. Mushure mokunge resin yakasvibiswa, ruvara runova rwakasviba, kuchinja kubva kune yero kusvika kune yakasviba yakasviba uye yakasviba.
2. Kushanda kwekuchinjana kwekushanda kwe resin kunoderedzwa, uye nguva yekugadzira simba remubhedha weanion yakaderera zvikuru.
3. Organic acids inodonhedza mutsvina, ichiwedzera conductivity yemvura.
4. Kukosha kwepH yemvura inoyerera kunoderera.Pasi pemamiriro ekushanda akajairika, kukosha kwepH yemvura inoyerera kubva pamubhedha weanion kazhinji iri pakati pe7-8 (nekuda kwekudonha kweNaOH).Mushure mekunge resin yasvibiswa, kukosha kwepH yemvura inoyerera kunogona kuderera kusvika pakati pe5.4-5.7 nekuda kwekudonha kweorganic acids.
5. Zvinyorwa zveSiO2 zvinowedzera.The dissociation constant of organic acids (fulvic acid uye humic acid) mumvura yakakura kudarika yeH2SiO3.Nokudaro, organic matter yakasungirirwa kune resin inogona kudzivisa kuchinjana kweH2SiO3 neresin, kana kubvisa H2SiO3 iyo yakatove yakashambadzirwa, zvichiita kuti SiO2 irege kubuda kubva pamubhedha weanion.
6. Kuwanda kwemvura yekugeza kunowedzera.Nekuti organic adsorbed pane resin ine nhamba huru ye -COOH inoshanda mapoka, resin inoshandurwa kuita -COONA panguva yekuvandudzwa.Munguva yekuchenesa, aya maNa + ion anoramba achidzingwa nemamineral acid mumvura ine simba, izvo zvinowedzera nguva yekuchenesa uye kushandiswa kwemvura pamubhedha weanion.
Reverse osmosis membrane zvigadzirwa zvinoshandiswa zvakanyanya muminda yemvura yepamusoro, mvura yakadzoserwa, kurapwa kwemvura yetsvina, kuchenesa mvura yegungwa, mvura yakachena, uye yekupedzisira-yakachena mvura kugadzira.Mainjiniya anoshandisa zvigadzirwa izvi anoziva kuti anonhuwirira polyamide reverse osmosis membranes anotarirwa neoxidation nemaoxidizing agents.Naizvozvo, kana uchishandisa oxidation maitiro mu pre-kurapa, anowirirana ekudzikisa maajenti anofanira kushandiswa.Kuramba uchivandudza iyo anti-oxidation kugona kwe reverse osmosis membranes yave chiyero chakakosha kune vanopa membrane kuvandudza tekinoroji nekuita.
Oxidation inogona kukonzera kudzikiswa kwakakosha uye kusingadzoreki mukuita kwe reverse osmosis membrane zvikamu, zvinonyanya kuratidzwa sekuderera kwehuwandu hwekubvisa salination uye kuwedzera kwekugadzirwa kwemvura.Kuti ive nechokwadi chekuti desalination rate yehurongwa, membrane zvikamu zvinowanzoda kutsiviwa.Zvisinei, ndezvipi zvinowanzokonzera oxidation?
(I) Common oxidation phenomena uye zvikonzero zvavo
1. Kurwiswa kweklorini: Mishonga ine chloride inowedzerwa kukupinda kwehurongwa, uye kana isina kupedzwa zvizere panguva yekurapwa, yakasara chlorine inopinda reverse osmosis membrane system.
2. Tsvaga yakasara chlorine uye heavy metal ions yakadai seCu2+, Fe2+, uye Al3+ mumvura ine simba inokonzera catalytic oxidative reactions mu polyamide desalination layer.
3. Mamwe maoxidizing agents anoshandiswa panguva yekurapa kwemvura, yakadai seklorini dioxide, potassium permanganate, ozone, hydrogen peroxide, etc. Masara okisijeni anopinda mu reverse osmosis system uye anokonzera kukanganisa kweoxidation kune reverse osmosis membrane.
(II) Nzira yekudzivirira oxidation?
1. Ita shuwa kuti reverse osmosis membrane inflow haina yasara chlorine:
a.Isa pamhepo oxidation-yekudzikisa zvingangoita zviridzwa kana zvakasara chlorine yekuona zviridzwa mune reverse osmosis inflow pombi, uye shandisa zvinoderedza maajenti akadai sodium bisulfite kuona yasara chlorine munguva-chaiyo.
b.Kune zvitubu zvemvura zvinoburitsa mvura yetsvina kuti isangane nezviyero uye masisitimu anoshandisa ultrafiltration sekutanga kurapwa, kuwedzera chlorine inowanzo shandiswa kudzora kusvibiswa kwehutachiona hwehutachiona.Mumamiriro ezvinhu aya ekushanda, zviridzwa zvepamhepo uye nguva nenguva yekuyedzwa zvisiri pamhepo zvinofanirwa kusanganiswa kuti zvione yasara chlorine neORP mumvura.
2. Iyo reverse osmosis membrane yekuchenesa system inofanirwa kuparadzaniswa kubva kune ultrafiltration yekuchenesa system kudzivirira yakasara chlorine leakage kubva kune ultrafiltration system kune reverse osmosis system.
Iko kukosha kwekupikisa chiratidzo chakakosha chekuyera kunaka kwemvura yakachena.Mazuvano, masisitimu mazhinji ekuchenesa mvura mumusika anouya aine conductivity mita, iyo inoratidza iyo yakazara ion zviri mumvura kutibatsira kuti tive nechokwadi chechokwadi chechiyero chemhedzisiro.Iyo yekunze conductivity mita inoshandiswa kuyera kunaka kwemvura uye kuita kuyerwa, kuenzanisa uye mamwe mabasa.Nekudaro, mibairo yekuyera yekunze inowanzo ratidza kutsauka kwakakosha kubva kuhunhu hunoratidzwa nemuchina.Saka dambudziko nderei?Tinofanira kutanga ne 18.2MΩ.cm kuramba kukosha.
18.2MΩ.cm chiratidzo chakakosha chekuyedzwa kwemhando yemvura, iyo inoratidza kusangana kwema cations uye anions mumvura.Kana iyo ion concentration mumvura yakaderera, kukosha kwekupikisa kunoonekwa kwakakwira, uye zvinopesana.Nokudaro, pane hukama hwakasiyana pakati pekupikisa kukosha uye ion concentration.
A. Sei muganho wepamusoro we-ultra-pure water resistance value 18.2 MΩ.cm?
Kana iyo ion concentration mumvura inosvika zero, nei kukosha kwekupikisa kusiri kukuru?Kuti tinzwisise zvikonzero, ngatikurukurei inverse yekukoshera kukosha - conductivity:
① Conductivity inoshandiswa kuratidza kugona kweiyoni mumvura yakachena.Kukosha kwayo kunoenderana neiyo ion concentration.
② Iyo unit ye conductivity inowanzoratidzwa mu μS/cm.
③ Mumvura yakachena (inomiririra ion concentration), iyo conductivity value ye zero haipo nekuti hatigone kubvisa maion ese kubva mumvura, kunyanya tichifunga nezve dissociation equilibrium yemvura sezvinotevera:
Kubva pane iri pamusoro dissociation equilibrium, H+ uye OH- haigone kubviswa.Kana pasina maion mumvura kunze kwe [H+] uye [OH-], iyo yakaderera kukosha kweiyo conductivity ndeye 0.055 μS/cm (iyi kukosha inotarwa zvichienderana neiyo ion concentration, ion kufamba, uye zvimwe zvinhu, zvichibva pa [H+] = [OH-] = 1.0x10-7).Saka, ne theoretically, hazvibviri kuburitsa mvura yakachena ine conductivity value yakaderera pane 0.055μS/cm.Uyezve, 0.055 μS/cm ndiyo inodzokororwa ye18.2M0.cm yatinoziva nayo, 1/18.2=0.055.
Nokudaro, pakupisa kwe25 ° C, hapana mvura yakachena ine conductivity yakaderera kupfuura 0.055μS / cm.Mune mamwe mazwi, hazvibviri kuburitsa mvura yakachena ine kukosha kwekupokana kwakakwira kupfuura 18.2 MΩ/cm.
B. Sei mvura yekuchenesa mvura ichiratidza 18.2 MΩ.cm, asi zvinonetsa kuwana mhinduro yakayerwa isu pachedu?
Ultra-yakachena mvura ine yakaderera ion yemukati, uye zvinodikanwa zvezvakatipoteredza, nzira dzekushandisa, uye yekuyera zviridzwa zvakakwirira kwazvo.Chero kushanda kusina kunaka kunogona kukanganisa mibairo yekuyera.Zvikanganiso zvekushanda zvakajairika pakuyera kukosha kwekupokana kwemvura yakachena murabhoritari inosanganisira:
① Offline yekutarisa: Bvisa iyo yakanyanya-yakachena mvura woiisa mubeaker kana imwe mudziyo wekuyedza.
② Isingawirirani bhatiri dhizaini: A conductivity mita ine bhatiri yenguva dzose ye0.1cm-1 haigone kushandiswa kuyera conductivity ye-ultra-pure water.
③ Kushaikwa Kwemuripo weTembiricha: Iyo 18.2 MΩ.cm kuramba kukosha mumvura yakachena-yakachena kazhinji inoreva mhedzisiro pasi petembiricha ye25°C.Sezvo tembiricha yemvura panguva yekuyera yakasiyana neiyi tembiricha, tinoda kuidzorera zvakare kusvika ku25°C tisati taita kuenzanisa.
C. Chii chatinofanira kuchenjerera patinenge tichiyera kukosha kwekupikisa kwe-ultra-pure water tichishandisa kunze kwemamita conductivity?
Tichitaura nezvezviri mukati mechikamu chekudzivirira chekuona muGB/T33087-2016 "Matsananguriro uye Nzira dzekuedza dzeMvura Yakachena Yemvura Yekuongororwa kweInstrumental," zvinotevera zvinhu zvinofanirwa kucherechedzwa pakuyera kukosha kwekupokana kweiyo-yakachena mvura uchishandisa yekunze conductivity. mita:
① Zvishandiso zvinodiwa: mita yekuitisa yepamhepo ine tembiricha yekubhadhara basa, conductivity cell electrode inogara iri 0.01 cm-1, uye tembiricha kuyerwa kwe0.1 ° C.
② Matanho ekushanda: Batanidza conductivity sero ye conductivity mita kune yekuchenesa mvura system panguva yekuyera, tsvaira mvura uye bvisa mabhubhu emhepo, gadzirisa kuyerera kwemvura kusvika padanho risingaperi, uye rekodha tembiricha yemvura uye kukosha kwekupokana kwechiridzwa. kupikisa kuverenga kwakagadzikana.
Zvinodiwa zvemidziyo uye nhanho dzekushanda dzataurwa pamusoro dzinofanirwa kutevedzwa zvakanyanya kuti ive nechokwadi chechokwadi chemhedzisiro yedu yekuyera.
Mubhedha wakasanganiswa ipfupi kune yakasanganiswa ion exchange column, inova chishandiso chakagadzirirwa ion chekuchinjana tekinoroji uye chinoshandiswa kugadzira yakakwirira-yakachena mvura (kupokana kunopfuura 10 megaohms), inowanzo shandiswa kuseri kwereverse osmosis kana Yang bed Yin bed.Iyo inonzi yakasanganiswa mubhedha inoreva kuti chimwe chikamu che cation uye anion exchange resin inosanganiswa uye inoputirwa mune imwechete yekutsinhana mudziyo kuti uchinje uye kubvisa ions mumvura.
Chiyero che cation uye anion resin packing kazhinji 1: 2.Mubhedha wakasanganiswa wakakamurwawo kuita in-situ synchronous regeneration yakasanganiswa mubhedha uye ex-situ regeneration yakasanganiswa mubhedha.In-situ synchronous regeneration yakasanganiswa mubhedha inoitwa mumubhedha wakavhenganiswa panguva yekushanda uye iyo yose yekuvandudza maitiro, uye resin haina kubviswa kunze kwemidziyo.Uyezve, iyo cation uye anion resins inogadziridzwa panguva imwe chete, saka iyo inodiwa yekubatsira michina ishoma uye kushanda kuri nyore.
Zvinoumba zvakasanganiswa mubhedha midziyo:
1. Hunhu hwemvura hwakanakisa, uye pH kukosha kwetsvina iri pedyo nekusarerekera.
2. Unhu hwemvura hwakagadzikana, uye kushanduka kwenguva pfupi mumamiriro ekushanda (zvakadai semvura inopinza kana zvikamu, kushanda kwehuwandu hwekuyerera, nezvimwewo) haina simba pahutano hwemvura yemubhedha wakavhenganiswa.
3. Kushanda kwepakati kune kakukanganisa pamhando yemvura yakasviba, uye nguva inodiwa kuti udzoke kune mvura isati yavharwa ipfupi.
4. Mvura yekudzorera mvura inosvika 100%.
Kuchenesa uye kushanda matanho emidziyo yemubhedha yakasanganiswa:
1. Kushanda
Pane nzira mbiri dzekupinda mumvura: nechigadzirwa mvura inlet yeYang bed Yin bed kana nekutanga desalination (reverse osmosis yakarapwa mvura) inlet.Paunenge uchishanda, vhura iyo inlet valve uye chigadzirwa chemvura valve, uye vhara mamwe mavharuvhu ese.
2. Backwash
Vhara chivharo chekupinza uye chigadzirwa chemvura valve;vhura iyo backwash inlet valve uye backwash discharge valve, backwash pa10m / h ye15min.Zvadaro, vhara backwash inlet valve uye backwash discharge valve.Rega zvigadzirire 5-10min.Vhura vharuvhu yekubudisira nevharuvhu yemvura yepakati, uye bvisa mvura zvishoma kusvika masendimita gumi pamusoro penzvimbo yeresin.Vhara vharafu yekupedza uye yepakati yekudhonza valve.
3. Kuberekwa patsva
Vhura vharuvhu inopinza, pombi yeasidhi, vharuvhu yekupinza asidhi, nevharupu yepakati.Gadzirisa cation resin pa5m/s uye 200L/h, shandisa reverse osmosis chigadzirwa mvura kuchenesa anion resin, uye chengetedza mwero wemvura mukoramu pamusoro peiyo resin layer.Mushure mekugadzirazve resin yecation kwemaminitsi makumi matatu, vhara vharafu inopinza, pombi yeasidhi, nevharuvhu yekupinza asidhi, uye vhura vharafu yekugezesa yekumashure, pombi yealkali, uye alkali inopinza vharafu.Gadzirazve anion resin pa5m/s uye 200L/h, shandisa reverse osmosis chigadzirwa mvura kuchenesa cation resin, uye chengetedza mwero wemvura mukoramu pamusoro peiyo resin layer.Regenerate kwe 30min.
4. Kutsiva, kusanganisa resin, uye kutsvaira
Vhara iyo alkali pombi uye alkali inlet valve, uye vhura iyo inopinza valve.Dzorera uye uchenese resin nekuunza mvura kubva kumusoro uye pasi panguva imwe chete.Mushure me30min, vhara vharafu inopinza, vharafu yekugezesa yekumashure, uye yepakati yekudhonza valve.Vhura chivharo chekubuda kwemashure, chivharo chemhepo, uye chivharo chekutsvaira, nechisimba che 0.1 ~ 0.15MPa uye vhoriyamu yegesi ye2 ~ 3m3 / (m2 · min), sanganisa resin ye 0.5 ~ 5min.Vhara iyo backwash discharge valve uye air inlet valve, rega igare kwe 1 ~ 2min.Vhura vheji yekupinza uye vheji yekugezera yekumberi, gadzirisa vheji yekuburitsa, zadza mvura kusvika pasina mweya mukoramu, uye bvisa resin.Kana iyo conductivity ichisvika pane zvinodiwa, vhura iyo vheji yekugadzira mvura, vhara iyo inoyerera inoburitsa vharafu, uye tanga kugadzira mvura.
Kana mushure menguva yekushanda, zvimedu zvemunyu zvakasimba mutangi yebrine yezvinopfavisa hazvina kuderera uye mvura inogadzirwa haisi kusvika pachiyero, zvingangoita kuti iyo yakapfava haigoni kutora munyu, uye zvikonzero zvinonyanya kusanganisira zvinotevera. :
1. Chekutanga, tarisa kana mvura iri kuuya yekumanikidza inokodzera.Kana mvura inopinda isina kukwana (isingasviki 1.5kg), kudzvinyirirwa kwakashata hakuzogadziriswi, izvo zvichaita kuti munyoro usatora munyu;
2. Tarisa uye uone kana pombi yekupinza munyu yakavharwa.Kana yakavharwa, haigoni kutora munyu;
3. Tarisa uone kana mvura isina kuvharwa.Kana dhirigi remvura rakawandisa nekuda kwemarara akawandisa ari musefa wepombi, kudzvanywa kwakashata hakuzoumbwa, izvo zvinoita kuti chinyoro chisatora munyu.
Kana mapoinzi matatu ari pamusoro akabviswa, saka zvinodikanwa kufunga kana pombi yekunyudza munyu iri kubuda, zvichiita kuti mweya upinde uye kudzvanywa kwemukati kuve kwakanyanya kunyura munyu.Kusapindirana pakati pechidziviriro chekuyerera kwemvura nejeti, kubuda mumvura yevharuvhu, uye kuwanda kwegasi kunokonzera kukwira kwemhepo zvinhu zvinokanganisawo kutadza kunwisa munyu kwechinyoro.