Hobaneng ha Tlhokomelo ea Oksijene e Qholotsoeng (DO) e le Bohlokoa Sebakeng sa Kajeno sa Tikoloho
Boitlamo ba tikoloho bo ntse bo tiea lefatšeng ka bophara-ho tloha California le Bohareng ba indasteri ho ea Ruhr Jeremane le Leboa la Italy. Ka litekanyetso tse thata, merero e ntse e ntlafatsoa ho fihlela melao ea sejoale-joale ea tikoloho. Ho se ikobele melao ho ka baka likotlo tse boima haholo kapa ho koalloa ka likhoka ke balaoli ba tikoloho. Mmarakeng oa kajeno, tlhahlobo ea nako ea 'nete ea li-parameter tsa bohlokoa joalo ka pH, DO (Dissolved Oxygen), le COD (Chemical Oxygen Demand) ha se taba ea boikhethelo empa e tlama.
Oxygen (DO) e qhibilihisitsoeng ke Eng?
Oxygen e qhibilihisitsoeng (DO) e bolela palo ea oksijene e teng metsing, eo hangata e lekantsoeng ka mg/L kapa ppm. DO ke parameter ea bohlokoa hobane:
- Libaktheria tsa Aerobic li hloka oksijene ho senya lintho tse silafatsang tsa tlhaho.
- Ha maemo a DO a theoha haholo, libaktheria tsa anaerobic li nka sebaka, tse lebisang ho bola, metsi a matšo, monko o litšila, le ho fokotseha ha matla a ho itlhoekisa.
Ka bokhutšoanyane, DO ke sesupo sa bohlokoa sa bophelo bo botle ba 'mele oa metsi. Phetoho e potlakileng ea DO kamora ho fokotseha e fana ka maikutlo a sistimi e phetseng hantle, athe ho fola butle e le folakha e khubelu bakeng sa tšilafalo e matla le botsitso bo fokolang ba tikoloho.
Lintlha tse Amang Maemo a DO
- Khatello e sa fellang ea oksijene moeeng
- Khatello ea sepakapaka
- Mocheso oa metsi
- Boleng ba metsi
Ho utloisisa lintlha tsena ho bohlokoa bakeng sa ho toloka lipalo tsa DO le ho netefatsa tlhahlobo e nepahetseng ea boleng ba metsi.
Likopo tse Tloaelehileng tsa Tlhokomelo ea Oksijene e Khaotsoeng
Tlhapi ea metsing
Morero:E netefatsa hore litlhapi le bophelo ba metsing li fumana oksijene e lekaneng.
Molemo:E thusa litlhokomeliso tsa nako ea 'nete le moea o ikemetseng ho boloka tikoloho e phetseng hantle.
Tlhokomelo ea Metsi a Tikoloho
Morero:E lekola maemo a tshilafalo le bophelo bo botle ba tikoloho le matsha, dinoka le dibaka tse lebopong la lewatle.
Molemo:E thusa ho thibela eutrophication le ho tataisa boiteko ba tokiso.
Lisebelisoa tsa ho hloekisa metsi a litšila (WWTPs)
Morero:DO ke phetoho ea bohlokoa ea taolo litankang tsa aerobic, anaerobic, le aeration.
Molemo:E ts'ehetsa ho leka-lekana ha likokoana-hloko le katleho ea phekolo ka ho sebetsa hammoho le litekanyetso tse kang BOD / COD.
Taolo ea Khoho Metsing ea Metsi ea Liindasteri
Morero:Ho beha leihlo maemo a DO a tlase haholo (ka ppb/μg/L) ho thibela kutu e bakoang ke oksijene liphaepheng tsa tšepe.
Molemo:E bohlokoa bakeng sa limela tsa motlakase le litsamaiso tsa boiler moo kutu e ka lebisang tokisong e theko e boima.
Tse peli tse etellang pele DO Sensing Technologies
1. Li-Sensors tsa Electrochemical (Membrane-based).
Kamoo Li Sebetsang Kateng:E boetse e tsejoa e le li-sensor tsa polarographic kapa Clark-type, lisebelisoa tsena li sebelisa lesela le nang le metsi a lekaneng ho arola kamore ea electrolyte ho tloha metsing. Oksijene e hasana ka lera, e fokotsehile ho cathode ea platinum, 'me e hlahisa tekanyo ea hona joale ea tekanyo ea DO.
Melemo:Theknoloji e netefalitsoeng e nang le kutloisiso e ntle.
Mathata:E hloka nako ea ho futhumatsa (metsotso e 15-30), sebelisa oksijene, 'me u batle tlhokomelo ea kamehla (ho tlatsa electrolyte, ho fetola lera, ho nchafatsa khafetsa).
2. Li-sensors tsa Optical (Luminescent).
Kamoo Li Sebetsang Kateng:Li-sensor tsena li sebelisa mohloli oa leseli o hahelletsoeng ka hare ho hlahisa leseli le leputsoa, e khahlisang dae e khanyang. Dae e ntša lebone le lefubelu; leha ho le joalo, oksijene e tima fluorescence ena (ho tima ka matla). Sensor e lekanya phetoho ea mohato kapa ho bola ka matla a bobebe ho bala mahloriso a DO.
Melemo:Ha ho mofuthu, ha ho na tšebeliso ea oksijene, tlhokomelo e fokolang (hangata lilemo tse 1-2 ts'ebeliso e tsoelang pele), e nepahetse haholo ebile e tsitsitse, ebile e se na tšitiso.
Mathata:Theko e phahameng ea pele (hangata $1,200–$3,000 USD vs. $300–$800 USD bakeng sa lisensara tsa lera).
Tataiso ea Khetho ea Sensor
Li-Sensors tse thehiloeng ho Membrane
Molemo ka ho Fetisisa Bakeng sa:Likopo moo litšenyehelo tsa pele e leng ntlha e kholo le litekanyo tsa nako e khuts'oane li amoheleha.
Mathata:Hloka ho sisinyeha ho loketseng kapa ho phalla ho qoba ho fokotseha ha oksijene; e nang le maikutlo a matle ho bubble mme e hloka tlhokomelo khafetsa.
Li-sensor tsa Optical
Molemo ka ho Fetisisa Bakeng sa:Tlhokomelo ea nako e telele, e nepahetseng haholo libakeng tse hlokang tlhokomelo.
Ho nahanoa:Le hoja li theko e boima haholo ka pele, li fokotsa nako ea ho theoha, li na le moroalo o fokolang oa tlhokomelo, 'me li fana ka ho nepahala le botsitso bo phahameng ka nako.
Bakeng sa liindasteri tse ngata kajeno-moo ho ts'epahalang, botsitso le tlhokomelo e fokolang li etelletsoang pele - li-sensor tsa DO tsa mahlo ke tsetelo e bohlale ea nako e telele.
Mantsoe a ho Qetela: Tsetela ho Quality DO Monitoring
Ha re tobane le melao e thata ea tikoloho, ho beha leihlo DO ka nepo ha se tlhokahalo ea taolo feela - ke karolo ea bohlokoa ea tikoloho e phetseng hantle le ts'ebetso e ntle ea indasteri.
Haeba u batla ho ts'epahala ha nako e telele, tlhokomelo e tlase, le ho nepahala ha data ho holimo, nahana ka methara ea DO ea optical ho sa tsotellehe litšenyehelo tsa bona tse holimo. Ba fana ka tharollo e bohlale ka ho fana ka ts'ebetso e ts'oanang, ho fokotsa sekhahla sa ho lekanya, le ho fana ka kholiseho e phahameng ho data ea hau ea tikoloho.
Na u se u itokiselitse ho ntlafatsa DO Monitoring System?
Nako ea poso: Apr-14-2025