I-oxygen encibilikile ibhekisela enanini lomoya-mpilo oncibilikisiwe emanzini, ngokuvamile aqoshwa ngokuthi DO, ovezwa ngamamiligremu omoya-mpilo ilitha ngalinye lamanzi (ngo-mg/L noma ppm).Amanye ama-organic compounds aguqulwa abe yi-biodegraded ngaphansi kwesenzo sebhaktheriya ye-aerobic, edla umoya-mpilo oncibilikisiwe emanzini, futhi umoya-mpilo oncibilikile awukwazi ukugcwaliswa ngesikhathi.Ibhaktheriya ye-anaerobic emzimbeni wamanzi izophindaphindeka ngokushesha, futhi izinto eziphilayo zizoshintsha umzimba wamanzi ube mnyama ngenxa yenkohlakalo.iphunga.Inani le-oxygen encibilikile emanzini liyinkomba yokukala ikhono lokuzihlanza lomzimba wamanzi.I-oxygen encibilikisiwe emanzini iyadliwa, futhi kuthatha isikhathi esifushane ukubuyisela esimweni sokuqala, okubonisa ukuthi umzimba wamanzi unekhono eliqinile lokuzihlanza, noma ukuthi ukungcola komzimba wamanzi akubi kakhulu.Uma kungenjalo, kusho ukuthi umzimba wamanzi ungcoliswe kakhulu, ikhono lokuzihlanza libuthakathaka, noma ngisho nekhono lokuzihlanza liyalahleka.Ihlobene eduze nokucindezela kwengxenye yomoya-mpilo emoyeni, ukucindezela komkhathi, izinga lokushisa kwamanzi kanye nekhwalithi yamanzi.
1.I-Aquaculture: ukuqinisekisa isidingo sokuphefumula semikhiqizo yasemanzini, ukuqapha ngesikhathi sangempela okuqukethwe komoyampilo, i-alamu ezenzakalelayo, i-othomathikhi yokufaka umoya-mpilo kanye neminye imisebenzi.
2.Ukuqapha izinga lamanzi lamanzi emvelo: Thola izinga lokungcoliswa kwamanzi kanye nekhono lokuzihlanza kwamanzi, futhi uvimbele ukungcola kwebhayoloji okufana ne-eutrophication yemithombo yamanzi.
3. Ukwelashwa kwendle, izinkomba zokulawula: ithangi le-anaerobic, ithangi le-aerobic, ithangi le-aeration nezinye izinkomba zisetshenziselwa ukulawula umphumela wokwelapha amanzi.
4. Lawula ukugqwala kwezinto zensimbi kumapayipi okuhambisa amanzi ezimbonini: Ngokuvamile, izinzwa ezinobubanzi be-ppb (ug/L) zisetshenziselwa ukulawula ipayipi ukuze kutholwe umoya-mpilo onguziro ukuze kuvinjelwe ukugqwala.Ivame ukusetshenziswa ezitshalweni zikagesi kanye nemishini yokubhayela.
Njengamanje, imitha yomoya-mpilo ehlakazekile evame kakhulu emakethe inezimiso ezimbili zokulinganisa: indlela ye-membrane kanye nendlela ye-fluorescence.Uyini-ke umehluko phakathi kwalokhu okubili?
1. Indlela ye-Membrane (eyaziwa nangokuthi indlela ye-polarography, indlela yokucindezela okuqhubekayo)
Indlela ye-membrane isebenzisa izimiso ze-electrochemical.I-membrane ekwazi ukungena kancane isetshenziswa ukuhlukanisa i-platinum cathode, i-anode yesiliva, ne-electrolyte ngaphandle.Ngokuvamile, i-cathode icishe ixhumane ngqo nale filimu.Umoya-mpilo usakazeka kulwelwesi ngesilinganiso esilinganayo nokucindezela kwawo okuyingxenye.Uma umfutho wengxenye ye-oksijini umkhulu, i-oxygen eyengeziwe izodlula kulwelwesi.Lapho i-oksijeni encibilikisiwe ingena ngokuqhubekayo kulwelwesi futhi ingena emgodini, iyancishiswa ku-cathode ukuze ikhiqize umsinga.Lesi sakamuva silingana ngokuqondile nokuhlushwa komoyampilo oncibilikisiwe.Ingxenye yemitha icubungula i-amplifying ukuze iguqule umthamo wamanje okaliwe ube yiyunithi yokuhlushwa.
2. I-Fluorescence
I-fluorescent probe inomthombo wokukhanya owakhelwe ngaphakathi okhipha ukukhanya okuluhlaza okwesibhakabhaka futhi ukhanyise ungqimba lwe-fluorescent.Into ye-fluorescent ikhipha ukukhanya okubomvu ngemva kokujabula.Njengoba amangqamuzana omoya-mpilo engase asuse amandla (umphumela wokucisha), isikhathi nokuqina kokukhanya okubomvu okujabulile kuhlobene nama- molecule omoya-mpilo.Ukugxilisa ingqondo ngokuphambene.Ngokulinganisa umehluko wesigaba phakathi kokukhanya okubomvu okujabulile nokukhanya okuyireferensi, futhi ukuqhathanisa nevelu yokulinganisa yangaphakathi, ukuhlangana kwama-molecule omoya-mpilo kungabalwa.Awukho umoya-mpilo osetshenziswayo ngesikhathi sokulinganisa, idatha izinzile, ukusebenza kuthembekile, futhi akukho ukuphazamiseka.
Masiyihlaziyele wonke umuntu kusukela ekusetshenzisweni:
1. Uma usebenzisa ama-electrode e-polarographic, zifudumeze okungenani imizuzu eyi-15-30 ngaphambi kokulinganisa noma ukukala.
2. Ngenxa yokusetshenziswa kwe-oksijeni nge-electrode, ukuhlushwa kwe-oksijeni ebusweni be-probe kuzokwehla ngokushesha, ngakho-ke kubalulekile ukugqugquzela isisombululo ngesikhathi sokulinganisa!Ngamanye amazwi, ngenxa yokuthi okuqukethwe komoyampilo kulinganiswa ngokudla umoya-mpilo, kuba nephutha elihlelekile.
3. Ngenxa yenqubekelaphambili yokusabela kwe-electrochemical, ukugxila kwe-electrolyte kuhlala kudliwa, ngakho-ke kuyadingeka ukwengeza i-electrolyte njalo ukuze kuqinisekiswe ukugxila.Ukuze kuqinisekiswe ukuthi awekho ama-bubbles ku-electrolyte ye-membrane, kuyadingeka ukususa wonke amakamelo oketshezi lapho kufakwa umoya wekhanda lekhanda.
4. Ngemva kokwengezwa kwe-electrolyte ngayinye, umjikelezo omusha wokusebenza kokulinganisa (imvamisa ukulinganisa kwamaphuzu angu-zero emanzini angenawo umoya-mpilo kanye nokulinganisa kwemithambeka emoyeni) kuyadingeka, futhi noma ngabe ithuluzi elinesinxephezelo sokushisa okuzenzakalelayo lisetshenziswa, kufanele libe seduze. kuya Kungcono ukulinganisa i-electrode ekushiseni kwesixazululo sesampula.
5. Awekho amabhamuza okufanele ashiywe ebusweni bolwelwesi olungafinyeleleki kancane phakathi nenqubo yokulinganisa, ngaphandle kwalokho luzofunda amabhamuza njengesampula eligcwele umoya-mpilo.Akunconywa ukuyisebenzisa ku-tank ye-aeration.
6. Ngenxa yezizathu zenqubo, ikhanda le-membrane lincane kakhulu, kulula ukulibhoboza endaweni ethile ebolayo, futhi liphila isikhashana.Kuyinto esebenzisekayo.Uma i-membrane yonakalisiwe, kufanele ishintshwe.
Ukufingqa, indlela ye-membrane iwukuthi iphutha lokunemba lithambekele ekuphambukeni, isikhathi sokugcinwa sifushane, futhi ukusebenza kunzima kakhulu!
Kuthiwani ngendlela ye-fluorescence?Ngenxa yesimiso somzimba, i-oxygen isetshenziswa kuphela njenge-catalyst phakathi nenqubo yokulinganisa, ngakho inqubo yokulinganisa ngokuyisisekelo ayinakho ukuphazamiseka kwangaphandle!Ukunemba okuphezulu, okungalondolozi, kanye nekhwalithi engcono ngokuyisisekelo ishiywa ingagadiwe iminyaka engu-1-2 ngemva kokufakwa.Ingabe indlela ye-fluorescence ayinakho ngempela ukushiyeka?Yebo kukhona!
Isikhathi sokuthumela: Dec-15-2021