Kumenyekanisha metero ya ogisijeni yamenetse

Umwuka wa ogisijeni ushonga bivuga urugero rwa ogisijeni yashonze mu mazi, ubusanzwe yanditswe nka DO, igaragarira muri miligarama ya ogisijeni kuri litiro y'amazi (muri mg / L cyangwa ppm). Ibinyabuzima bimwe na bimwe byangiza ibinyabuzima bigizwe na bagiteri zo mu kirere, zikoresha ogisijeni yashonze mu mazi, kandi umwuka wa ogisijeni ushonga ntushobora kuzuzwa mu gihe gikwiye. Bagiteri ya anaerobic mumubiri wamazi izagwira vuba, kandi ibinyabuzima bizahindura umubiri wamazi umukara kubera ruswa. impumuro. Ingano ya ogisijeni yashonze mumazi nikimenyetso cyo gupima ubushobozi bwo kwisukura bwumubiri wamazi. Umwuka wa ogisijeni ushonga mu mazi urakoreshwa, kandi bisaba igihe gito kugira ngo usubire uko byari bimeze mbere, byerekana ko umubiri w’amazi ufite ubushobozi bukomeye bwo kwisukura, cyangwa ko umwanda w’amazi udakomeye. Bitabaye ibyo, bivuze ko umubiri wamazi wanduye cyane, ubushobozi bwo kwisukura ni ntege nke, cyangwa nubushobozi bwo kweza bwatakaye. Ifitanye isano ya hafi n'umuvuduko w'igice cya ogisijeni mu kirere, umuvuduko w'ikirere, ubushyuhe bw'amazi n'ubwiza bw'amazi.

1.Ubuhinzi-mwimerere: kwemeza ibyifuzo byubuhumekero bwibicuruzwa byo mu mazi, kugenzura igihe nyacyo cyibirimo ogisijeni, gutabaza byikora, okisijeni yikora nindi mirimo

2.Gukurikirana ubuziranenge bw’amazi y’amazi karemano: Menya urugero rw’umwanda n’ubushobozi bwo kweza amazi, kandi wirinde kwanduza ibinyabuzima nka eutrophasi y’amazi y’amazi.

3.

. Bikunze gukoreshwa mumashanyarazi nibikoresho byo guteka.

Kugeza ubu, metero ya ogisijeni ikunze gushonga ku isoko ifite amahame abiri yo gupima: uburyo bwa membrane nuburyo bwa fluorescence. None ni irihe tandukaniro riri hagati yombi?

1. Uburyo bwa Membrane (buzwi kandi nkuburyo bwa polarography, uburyo bwumuvuduko uhoraho)
Uburyo bwa membrane bukoresha amahame ya electrochemic. Igice cya kabiri cyakoreshwa mugutandukanya platine cathode, anode ya silver, na electrolyte hanze. Mubisanzwe, cathode iri hafi guhura niyi firime. Oxygene ikwirakwizwa muri membrane ku kigereranyo kijyanye n'umuvuduko wacyo. Umuvuduko mwinshi wa ogisijeni, niko ogisijeni izanyura muri membrane. Iyo umwuka wa ogisijeni ushonga uhora winjira muri membrane hanyuma ukinjira mu cyuho, bigabanuka kuri cathode kugirango bitange umuyaga. Uyu muyoboro uhwanye neza na ogisijeni yashonze. Igice cya metero gikora uburyo bwo gutunganya kugirango uhindure umuyaga wapimwe mubice byibanda.

2. Fluorescence
Isuzuma rya fluorescent rifite isoko yuzuye yumucyo itanga urumuri rwubururu kandi ikamurikira florescent. Ibintu bya fluorescent bitanga urumuri rutukura nyuma yo kwishima. Kubera ko molekile ya ogisijeni ishobora gutwara ingufu (ingaruka zo kuzimya), igihe nuburemere bwurumuri rutukura rwishimye bifitanye isano na molekile ya ogisijeni. Kwibanda ku buryo butandukanye. Mugupima itandukaniro ryicyiciro hagati yumucyo utukura wishimye numucyo werekana, ukabigereranya nagaciro ka kalibrasi yimbere, ubunini bwa molekile ya ogisijeni irashobora kubarwa. Nta ogisijeni ikoreshwa mugihe cyo gupima, amakuru arahamye, imikorere ni iyo kwizerwa, kandi nta kwivanga.

Reka tubisesengure kuri buri wese uhereye kumikoreshereze:
1. Iyo ukoresheje electrode ya polarografiya, shyushya byibuze iminota 15-30 mbere yo guhitamo cyangwa gupima.
2. Bitewe no gukoresha ogisijeni na electrode, kwibumbira hamwe kwa ogisijeni hejuru yubushakashatsi bizahita bigabanuka, bityo rero ni ngombwa kubyutsa igisubizo mugihe cyo gupima! Muyandi magambo, kubera ko umwuka wa ogisijeni upimwa no gukoresha ogisijeni, habaho ikosa ritunganijwe.
3. Kugirango harebwe niba nta bubyimba buri muri electrolyte ya membrane, birasabwa gukuraho ibyumba byose byamazi mugihe ushyizemo umwuka wumutwe.
4. Nyuma ya buri electrolyte imaze kongerwamo, hasabwa uruziga rushya rwibikorwa bya kalibrasi (mubisanzwe zero point ya kalibrasi mumazi adafite ogisijeni na kalibrasi yo mu kirere), hanyuma rero niyo hakoreshwa igikoresho cyindishyi zubushyuhe bwikora, kigomba kuba hafi Nibyiza ko uhindura electrode mubushyuhe bwicyitegererezo.
5. Nta bubyimba bugomba gusigara hejuru ya kimwe cya kabiri cyinjira mugihe cyo gupima, bitabaye ibyo bizasoma ibibyimba nkicyitegererezo cyuzuye ogisijeni. Ntabwo ari byiza kuyikoresha mu kigega cya aeration.
6. Bitewe nimpamvu zitunganijwe, umutwe wa membrane uroroshye cyane, byoroshye byoroshye gutobora muburyo runaka bubora, kandi ufite ubuzima buke. Nibintu biribwa. Niba membrane yangiritse, igomba gusimburwa.

Kurangiza, uburyo bwa membrane ni uko ikosa ryukuri rikunda gutandukana, igihe cyo kubungabunga ni gito, kandi imikorere irarushijeho kuba ikibazo!
Tuvuge iki ku buryo bwa fluorescence? Bitewe nihame ryumubiri, ogisijeni ikoreshwa gusa nka catalizator mugihe cyo gupima, bityo inzira yo gupima ntisanzwe kubangamira hanze! Ibisobanuro-bihanitse, kubungabungwa-byubusa, hamwe nubuziranenge-bwiza busigaye ahanini butarebwa imyaka 1-2 nyuma yo kwishyiriraho. Uburyo bwa fluorescence mubyukuri nta nenge bufite? Birumvikana ko hariho!