Okisijeni yakanyungudika inoreva kuwanda kweokisijeni yakanyungudika mumvura, kazhinji inonyorwa seDO, inoratidzirwa mumamirigiramu eokisijeni parita remvura (mu mg/L kana ppm).Mamwe ma organic compounds akaitwa biodegraded pasi pechiito che aerobic bacteria, iyo inopedza okisijeni yakanyungudika mumvura, uye okisijeni yakanyungudika haigone kuzadzikiswa nenguva.Iyo anaerobic mabhakitiriya ari mumuviri wemvura anowanda nekukurumidza, uye iyo organic zvinhu inoshandura iyo yemvura dema nekuda kwehuori.munhuwi.Huwandu hweokisijeni yakanyungudika mumvura chiratidzo chekuyera kugona kuzvinatsa kwemuviri wemvura.Iyo okisijeni yakanyungudika mumvura inopedzwa, uye inotora nguva pfupi kudzorera kumamiriro ekutanga, zvichiratidza kuti muviri wemvura une simba rakasimba rekuzvinatsa, kana kuti kusvibiswa kwemuviri wemvura hakuna kukomba.Zvikasadaro, zvinoreva kuti muviri wemvura wakasvibiswa zvakanyanya, kugona kuzvinatsa hakuna simba, kana kunyangwe kugona kuzvinatsa kwakarasika.Iyo inowirirana zvakanyanya nechikamu chekumanikidzwa kweokisijeni mumhepo, mhepo yemhepo, tembiricha yemvura uye kunaka kwemvura.
1.Aquaculture: kuve nechokwadi chekufema kudiwa kwezvinhu zvemumvura, chaiyo-nguva yekutarisisa yeokisijeni yemukati, otomatiki alarm, otomatiki oxygenation uye mamwe mabasa.
2.Kutariswa kwemhando yemvura yemvura yakasikwa: Tsvaga dhigirii rekusvibisa uye kugona kuzvinatsa kwemvura, uye kudzivirira kusvibiswa kwebiological senge eutrophication yemitumbi yemvura.
3. Sewage treatment, control indicators: anaerobic tank, aerobic tank, aeration tank nezvimwe zviratidzo zvinoshandiswa kudzora kushandiswa kwemvura.
4. Kudzora kuparara kwezvinhu zvesimbi mumapaipi emvura yeindasitiri: Kazhinji, masensa ane ppb (ug/L) renji anoshandiswa kudzora pombi kuti iwane zero okisijeni kudzivirira ngura.Inowanzo shandiswa mumagetsi emagetsi uye boiler michina.
Parizvino, iyo yakanyanya kunyungudika mita yeokisijeni pamusika ine misimboti miviri yekuyera: membrane nzira uye fluorescence nzira.Saka ndeupi musiyano pakati pezviviri izvi?
1. Membrane nzira (inozivikanwawo sepolarography nzira, inogara ichimanikidza nzira)
Iyo membrane nzira inoshandisa electrochemical nheyo.Semi-permeable membrane inoshandiswa kupatsanura platinamu cathode, sirivheri anode, uye electrolyte kubva kunze.Kazhinji, iyo cathode inenge yakanangana nefirimu iyi.Oxygen inopararira nemukati memembrane pachiyero chinoenzana nekumanikidza kwayo.Iyo yakakura iyo oksijeni chikamu chekumanikidza, iyo yakawanda oksijeni ichapfuura nepakati membrane.Kana okisijeni yakanyungudika ichiramba ichipinda mu membrane uye ichipinda mugomba, inoderedzwa pane cathode kugadzira ikozvino.Iyi yazvino yakanyatso kuenzana neyakanyungudika oksijeni concentration.Iyo mita chikamu inoitwa amplifying process kushandura yakayerwa ikozvino kuita yeconcentration unit.
2. Fluorescence
Iyo fluorescent probe ine yakavakirwa-mukati mwenje sosi inoburitsa bhuruu mwenje uye inovhenekera fluorescent layer.Chinhu chefluorescent chinoburitsa chiedza chitsvuku mushure mekunakidzwa.Sezvo mamorekuru eokisijeni achigona kubvisa simba (kudzima mhedzisiro), nguva uye kusimba kwechiedza dzvuku chinonakidzwa zvine chekuita nemamorekuru eokisijeni.Iko kusungirirwa kune inversely proportional.Nekuyera mutsauko wechikamu pakati pechiedza dzvuku chinofadza uye mwenje wekutarisa, uye uchienzanisa neiyo yemukati calibration kukosha, kusangana kwemamorekuru eokisijeni kunogona kuverengerwa.Hapana okisijeni inopedzwa panguva yekuyera, iyo data yakagadzikana, kuita kwakavimbika, uye hapana kupindira.
Ngatiiongororei kune wese kubva mukushandiswa:
1. Paunenge uchishandisa polarographic electrode, dziirei kweinenge 15-30 maminetsi musati magadzirisa kana kuyerwa.
2. Pamusana pekushandiswa kweokisijeni ne electrode, kuwedzera kweokisijeni pamusoro peprobe kuchaderera pakarepo, saka zvakakosha kumutsa mhinduro panguva yekuyera!Nemamwe manzwi, nekuti mweya weokisijeni unoyerwa nekushandisa mweya weokisijeni, pane kukanganisa kwakarongeka.
3. Nekuda kwekufambira mberi kweiyo electrochemical reaction, iyo electrolyte concentration inogara ichidyiwa, saka zvinodikanwa kuwedzera electrolyte nguva nenguva kuti ive nechokwadi chekuisa.Kuti uone kuti hapana mabubbles mu electrolyte ye membrane, inodiwa kubvisa makamuri ese emvura paunenge uchiisa membrane musoro wemhepo.
4. Mushure mekunge electrolyte yega yega yawedzerwa, kutenderera kutsva kwekugadzirisa kushanda (kazhinji zero point calibration mumvura isina oxygen uye slope calibration mumhepo) inodiwa, uyezve kunyangwe chiridzwa chine otomatiki tembiricha muripo chikashandiswa, chinofanira kunge chiri pedyo. kune Zviri nani kuenzanisa electrode patembiricha yemuenzaniso mhinduro.
5. Hapana mabhubhu anofanirwa kusiiwa pamusoro peiyo semi-permeable membrane panguva yekuyera maitiro, kana zvisina kudaro ichaverenga mabhubhu seye oxygen-yakazara sampuli.Hazvikurudzirwi kuishandisa mune aeration tank.
6. Nekuda kwezvikonzero zvekugadzirisa, musoro we membrane wakaita mutete, kunyanya nyore kubaya mune imwe svikiro inoparadza, uye ine hupenyu hupfupi.Chinhu chinodyiwa.Kana iyo membrane yakakuvadzwa, inofanira kuchinjwa.
Kupfupisa, iyo membrane nzira ndeyokuti kukanganisa kwechokwadi kunowanzo kutsauka, nguva yekuchengetedza ipfupi, uye kushanda kunonyanya kunetsa!
Zvakadini nezve fluorescence nzira?Nekuda kwechimiro chemuviri, okisijeni inongoshandiswa sechinhu chinokonzeresa panguva yekuyera maitiro, saka iyo yekuyera maitiro haina kusununguka kubva kunze kwekupindira!Yepamusoro-chaiyo, yekuchengetedza-isina, uye zvirinani-mhando probes zvinongosiiwa zvisina kutarisirwa kwemakore 1-2 mushure mekuiswa.Iyo nzira yefluorescence haina zvikanganiso zvechokwadi here?Chokwadi chiriko!
Nguva yekutumira: Zvita-15-2021