Ingaruka ya rezo osmose membrane ku ngaruka zo kuvura imiterere y'amazi atandukanye

Muburyo bwa osmose (RO), kugaburira amazi meza bigira uruhare runini mumikorere ya membrane, gutegeka gutemba, kwanga umunyu, kubeshya, gukoresha ingufu, no gukora isuku inshuro. Amazi yo hejuru akungahaye ku binyabuzima n’ibinyabuzima (NOM) ateza imbere ibinyabuzima na biofouling, mu gihe amazi y’ubutaka cyangwa amasoko y’amazi arangwa no gukomera, silika, hamwe n’icyuma cya ion bitera ibinyabuzima bidahwitse kandi bigoye. Amazi menshi yo mu nyanja arasaba umuvuduko mwinshi wo gukora wongera ubunini no gukora biofilm. Amazi y’imyanda, yuzuyemo ibinyabuzima byashonze hamwe na micropollutants, birashobora kwangiza ibintu byihuse, bigasaba kwifata bikabije hamwe na protocole ikomeye yo gukora isuku. Hirya no hino, kwitegura neza, guhitamo neza, no kugenzura imikorere ni ngombwa kugirango RO ikore neza kandi irambe.

Intangiriro
Reverse osmose (RO) itandukanya amazi numuti ushonga ukoresheje ingufu za hydraulic hejuru ya semipermeable membrane. RO ubu ifite hejuru ya 65% yubushobozi bwo kwangiza isi, bishimangira uruhare runini mugutunganya amazi no kuyakoresha. Nyamara, imikorere ya membrane yunvikana cyane kubiranga amazi-umutwaro kama, ibinyabuzima bya ionic, ibintu byangiza, hamwe nibikorwa byibinyabuzima - ibyo byose birashobora kugabanya umuvuduko winjira, kwanga umunyu muke, kuzamura ingufu, no kugabanya ubuzima bwa serivisi ya membrane.

Ubwoko bw'amazi yo kugaburira n'ingaruka zabyo
Amazi yo hejuru
Inkomoko y'ubutaka (inzuzi, ibiyaga) akenshi irimo urwego rwo hejuru rwibintu byahagaritswe, imivurungano, na NOM, biganisha ku kwihuta kwa membrane kwangirika hamwe na spacer gufunga niba bidateganijwe neza. Kwiyitirira byibuze amazi yo hejuru ntibishobora guhagarika imikorere ya RO, kuko ibice nibinyabuzima byegeranya hejuru ya membrane, bigatera kwibumbira hamwe no gukora nabi.

Amazi yo mu butaka / Amazi meza
Amazi yo mu butaka agaragaramo imyunyu iringaniye no gukomera, bigabanya umuvuduko wa osmotique ugereranije n’amazi yo mu nyanja ariko bizamura ibyago bya calcium karubone na silika. Gupima Silica, byumwihariko, biragoye kubuza antiscalants zisanzwe, bisaba ingamba zihariye zo kugenzura kubungabunga urujya n'uruza no kwirinda ikosa ridasubirwaho.

Amazi yo mu nyanja
Inyanja RO (SWRO) ikorera kumuvuduko mwinshi (mubisanzwe 55-80 bar) kugirango utsinde imbaraga za osmotic ya bar ~ 25-30, ibyo bikaba byongera ingufu zingufu kandi bigashimangira guhuzagurika no gukora nabi. Ibipimo bidasanzwe (calcium sulfate, karubone) hamwe na biofouling biriganje kandi bisaba gufata imiti igabanya ubukana bwa antiscalant, kurwanya biofilm, no gukora isuku kenshi.

Amazi meza
RO gutunganya imyanda y’amazi y’amakomine cyangwa y’inganda ikemura ibibazo byinshi by’ibinyabuzima byashonze, micropollutants, hamwe n’udukoko twangiza, biganisha ku binyabuzima n’ibinyabuzima bikabije. Ibitaro bya WWTP bivurwa hamwe na polyamide RO membrane byerekana kugabanuka gukabije kwa TDS na COD ariko bikagabanuka byihuse bitarinze gushungura preRO no kugenzura imikorere.

Ingaruka ku mikorere ya Membrane
Uburyo bubi
Kwangiza ibinyabuzima bituruka ku kwinjiza ibinyabuzima bito bito bito (LMWOC) hejuru y’imbere no mu byobo, bikabuza amazi. Kwangirika kudakomoka ku binyabuzima birimo imvura yumunyu muke (urugero, karubone ya calcium, sulfate) mumaso ya membrane, bigakora umunzani ukomeye uhagarika imyenge kandi wangiza urwego rukora. Biofouling, itwarwa na mikorobe hamwe no gukura kwa biofilm, irushaho kugabanya umuvuduko no gushishikariza kwipimisha.

Gupima
Kalisiyumu sulfate na karubone bipima mubisanzwe bibaho mugihe ion zikomeye zirenze imipaka yo kugabanuka hejuru ya membrane, byihutishwa na polarisiyasi. Silica, igaragara nkubwoko bwa colloidal cyangwa yashonze, ikora ibintu bikomeye, bigoye birwanya antiscalants gakondo, cyane cyane muri sisitemu y'amazi ya RO.

Gupima kuri spacers ya Reverse Osmose Membrane

Emera Flux no Kwanga Umunyu
Uruhushya rwa permeate rwiyongera hamwe numuvuduko wa transembrane ariko plateaus kubera polarisiyasi yibitekerezo hamwe ningaruka zo guhuza. Umuvuduko mwinshi utera imbere kwanga umunyu, nyamara birenze urugero rwiza birashobora kugabanya kwangwa bitewe no kongera ingufu za convective guhatira ibisubizo binyuze mu nenge no kubeshya.

Gukoresha Ingufu hamwe nigitutu cyo gukora
Kubeshya no gupima bizamura hydraulic irwanya hydraulic, bisaba imbaraga zo kugaburira ibiryo byinshi kugirango bikomeze kugenda neza, bityo byongere ingufu zikoreshwa ryingufu (SEC) nigiciro cyibikorwa. Isuku yizunguruka iba myinshi, yongeraho gukoresha imiti nigihe cyo hasi.

Ingamba zo Kugabanya
Kwitegura
Kwiyitirira neza - coagulation, kuyungurura itangazamakuru, ultrafiltration - ikuraho uduce na NOM, bikumira ubushobozi bubi no guhagarika imikorere ya RO. Kubwamazi yo hejuru, dual - itangazamakuru ryungurura hamwe na karubone ikora ya adsorption igabanya imizigo kama kandi ikarinda modules ya RO.

Isuku hamwe na Antiscalants
Isuku yumubiri (gusubiza inyuma, gusunika imbere) hamwe nubumara (acide, alkalis, okiside) isukura protocole yibanda kumoko yihariye - ibinyabuzima, ibinyabuzima, ibinyabuzima - kugarura ibintu no kwangwa. Kunywa antiscalant, guhindura pH, hamwe na antifoaming bifasha kwirinda nucleation nini na biofilm.

Guhindura Ubuso bwa Membrane
Iterambere rya vuba mugushushanya hejuru (urugero, aside polyacrylic, grapheneoxide coatings) byatanze ibibyimba byoroshye, hydrophilique, hamwe nubushyuhe bubi, byongera imbaraga zo kurwanya no kugumana ibintu.

Inyigo

• Amazi meza muri Tuniziya:Uruganda rwuzuye rwerekanaga ibikorwa birebire hamwe no gukora isuku buri gihe; Ibiranga amakosa byagaragaye bivanze kama kama-organic organique isaba uburyo bwogukora isuku.
• Ibitaro WWTP Gusubiramo ingufu:Polyamide RO membrane yagabanije TDS kuva ~ 1 500 mg / L ikagera kuri 90%, ariko flux ya flux yagabanutseho 25% muminsi 30 itabanje kwitegura neza kandi igashyiraho ingufu.

Umwanzuro
Kugaburira ubwiza bwamazi nicyo kintu cyambere kigenga imikorere ya RO membrane. Amazi yo hejuru arasaba ibice bikomeye no gukuraho NOM; Inkomoko isaba silika no kugenzura gukomera; Kuvura amazi yo mu nyanja bigomba kuringaniza high ibikorwa byumuvuduko hamwe nubuyobozi bwo gupima; Amazi y’amazi arasaba kwitonda cyane no gukora isuku idasanzwe. Udushya mu bikoresho bya membrane, tekinoroji yo kwitegura, hamwe no kugenzura igihe nyacyo bikomeje kongera imbaraga za RO no gukora neza muburyo butandukanye bwamazi. Gushyira mu bikorwa ingamba zihamye zituma ibikorwa bya RO birambye, igihe kirekire cyo kubaho, hamwe n’umusaruro wizewe wo hejuru.