Kungani Ukuqapha I-Oxygen Encibilikisiwe (DO) Kubalulekile KumaZwe Wendawo Yanamuhla
Ukuthobela imvelo kuyaqina emhlabeni jikelele—kusuka e-California nase-Industrial Midwest kuya e-Ruhr eJalimane naseNyakatho ne-Italy. Ngamazinga aqinile, amaphrojekthi ayathuthukiswa ukuze ahlangabezane nemithetho yesimanje yezemvelo. Ukungathobeli imithetho kungaholela ekuhlawulisweni okukhulu noma ukuvalwa ngenkani yiziphathimandla zezemvelo. Ezimakethe zanamuhla, ukuqapha ngesikhathi sangempela amapharamitha abalulekile njenge-pH, i-DO (I-Oxygen Encibilikisiwe), ne-COD (Chemical Oxygen Demand) akuyona inketho kodwa isibopho.
Yini I-Oxygen Echithiwe (DO)?
I-Oxygen Encibilikile (DO) ibhekisela enanini lomoya-mpilo elikhona emanzini, ngokuvamile likalwa ngo-mg/L noma ppm. I-DO ipharamitha ebalulekile ngoba:
- Amabhaktheriya e-Aerobic adinga umoya-mpilo ukuze aphule ukungcola kwezinto eziphilayo.
- Uma amazinga e-DO ehla kakhulu, amagciwane e-anaerobic athatha amandla, okuholela ekuboleni, emanzini amnyama, iphunga elibi, kanye nokuncipha komthamo wokuzihlanza.
Ngamafuphi, i-DO iyinkomba eyinhloko yempilo yomzimba wamanzi. Ukuphindaphinda okusheshayo kwe-DO ngemva kokuphelelwa amandla kuphakamisa isistimu enempilo, kuyilapho ukululama kancane kuyifulegi elibomvu lokungcola okukhulu kanye nokuqina okubuthakathaka kwemvelo.
Izinto Ezithinta Amazinga E-DO
- Ukucindezela kwengxenye ye-oksijeni emoyeni
- Umfutho we-atmospheric
- Izinga lokushisa lamanzi
- Izinga lamanzi
Ukuqonda lezi zici kubalulekile ekuhumusheni ukufundwa kwe-DO nokuqinisekisa ukuhlolwa kwekhwalithi yamanzi okunembile.
Izicelo Ezivamile Zokuqapha I-Oxygen Encibilikile
I-Aquaculture
Inhloso:Iqinisekisa ukuthi izinhlanzi kanye nezilwane zasemanzini zithola umoya-mpilo owanele.
Inzuzo:Inika amandla izexwayiso zesikhathi sangempela kanye nokufaka umoya okuzenzakalelayo ukuze kugcinwe imvelo enempilo.
Ukuqapha Amanzi Emvelo
Inhloso:Ihlola amazinga okungcola kanye nempilo yemvelo yamachibi, imifula, nezindawo ezisogwini.
Inzuzo:Isiza ukuvimbela i-eutrophication futhi iqondise imizamo yokulungisa.
Izindawo Zokuhlanza Amanzi Angcolile (WWTPs)
Inhloso:I-DO iwukulawula okuguquguqukayo okubalulekile emathangini e-aerobic, anaerobic, kanye ne-aeration.
Inzuzo:Isekela ibhalansi ye-microbial nokusebenza kahle kokwelashwa ngokusebenza eduze kwamapharamitha afana ne-BOD/COD.
Ukulawula Ukugqwala Ezinhlelweni Zamanzi Zezimboni
Inhloso:Ukuqapha amazinga e-DO aphansi kakhulu (ku-ppb/μg/L) kuvimbela ukugqwala okubangelwa umoya-mpilo kumapayipi ensimbi.
Inzuzo:Okubalulekile ezitshalweni zamandla kanye nezinhlelo zokubhayela lapho ukugqwala kungaholela ekulungiseni okubizayo.
Ama-Do Sensing Technologies Amabili Ahamba Phambili
1. Izinzwa ze-Electrochemical (Asekwe kwiMembrane).
Indlela Asebenza Ngayo:Eyaziwa nangokuthi izinzwa ze-polarographic noma i-Clark-type, lawa madivayisi asebenzisa ulwelwesi olungena-permeable ukuze luhlukanise i-electrolyte chamber emanzini. Umoya-mpilo usakazeka kulwelwesi, uncishiswe ku-platinum cathode, futhi ukhiqize isilinganiso samanje sezinga le-DO.
Okuhle:Ubuchwepheshe obufakazelwe obunokuzwela okuhle.
Ububi:Kudinga isikhathi sokufudumala (imizuzu eyi-15-30), sebenzisa umoya-mpilo, futhi ufune ukunakekelwa okujwayelekile (ukugcwalisa kabusha i-electrolyte, ukubuyisela ulwelwesi, ukulinganisa kabusha okuvamile).
2. Izinzwa ze-Optical (Luminescent).
Indlela Asebenza Ngayo:Lezi zinzwa zisebenzisa umthombo wokukhanya owakhelwe ngaphakathi ukuze zikhiphe ukukhanya okuluhlaza okwesibhakabhaka, okujabulisa udayi we-luminescent. Udayi ukhipha ukukhanya okubomvu; Nokho, umoya-mpilo ucisha le-fluorescence (ukucisha okunamandla). Inzwa ikala ukuguquka kwesigaba noma ukubola kokukhanya ukuze ibale ukugxiliswa kwe-DO.
Okuhle:Akukho ukufudumala, ukusetshenziswa komoyampilo, ukunakekelwa okuncane (ngokuvamile iminyaka engu-1-2 ukusetshenziswa okuqhubekayo), kunembe kakhulu futhi kuzinzile, futhi akukho ukuphazamiseka.
Ububi:Izindleko zangaphambili eziphakeme (imvamisa engu-$1,200–$3,000 USD vs. $300–$800 USD yezinzwa zolwelwesi).
Umhlahlandlela Wokukhetha Izinzwa
Izinzwa Ezisekelwe kumembu
Okungcono kakhulu:Izicelo lapho izindleko zokuqala ziyisici esikhulu futhi izilinganiso zesikhashana zamukelekile.
Izinselelo:Kudinga ukunyakaziswa okufanele noma ukugeleza ukuze ugweme ukuncipha komoyampilo; izwela kumabhamuza futhi idinga ukunakekelwa njalo.
Izinzwa ze-Optical
Okungcono kakhulu:Ukuqapha kwesikhathi eside, okunembayo okuphezulu ezindaweni ezidinga kakhulu.
Ukucatshangelwa:Nakuba zibiza kakhulu ngaphambili, zinciphisa isikhathi sokuphumula, zibe nomthwalo wesondlo ophansi, futhi zinikeze ukunemba okuphakeme nokuzinza ngokuhamba kwesikhathi.
Ezimbonini eziningi namuhla—lapho ukwethembeka, ukuzinza, kanye nokunakekelwa okuncane kubekwa phambili—izinzwa ze-Optical DO ziwukutshalwa kwezimali kwesikhathi eside okuhlakaniphile.
Igama Lokugcina: Tshala Ekugadweni Kwekhwalithi YENZA
Lapho kubhekene nemithetho eqinile yezemvelo, ukuqapha okunembile kwe-DO akuyona nje imfuneko yokulawula—kuyisici esibalulekile se-ecosystem enempilo nokusebenza kahle kwezimboni.
Uma ufuna ukwethembeka kwesikhathi eside, ukunakekelwa okuphansi, kanye nokunemba okuphezulu kwedatha, cabangela amamitha e-O optical naphezu kwezindleko zawo zokuqala eziphezulu. Banikeza isixazululo esihlakaniphile ngokuletha ukusebenza okungaguquki, ukunciphisa imvamisa yokulinganisa, nokuhlinzeka ngokuqiniseka okuphezulu kudatha yakho yezemvelo.
Ulungele ukuthuthukisa Uhlelo lwakho Lokuqapha I-DO?
Isikhathi sokuthumela: Apr-14-2025