Tšebeliso ea ORP ho hloekisa likhoerekhoere

ORP e emela eng tabeng ea ho hloekisa likhoerekhoere?
ORP e emetse "redox" monyetla oa ho hloekisa likhoerekhoere. ORP e sebelisoa ho bonts'a thepa ea macro redox ea lintho tsohle ka tharollo e nang le metsi. Ha matla a redox a phahame, a na le thepa e matla ea oxidizing, 'me e theola bokhoni ba redox, e matlafatsa thepa e fokotsang. Bakeng sa 'mele oa metsi, hangata ho na le menyetla e mengata ea redox, e etsang mokhoa o rarahaneng oa redox. 'Me bokhoni ba eona ba redox ke sephetho se felletseng sa karabelo ea redox lipakeng tsa lintho tse ngata tsa oxidizing le lintho tse fokotsang.
Leha ORP e ke ke ea sebelisoa e le sesupo sa khatello ea ntho e itseng ea oxidizing le ntho e fokotsang, e thusa ho utloisisa litšobotsi tsa electrochemical tsa 'mele oa metsi le ho sekaseka thepa ea' mele oa metsi. Ke sesupo se akaretsang.
Tšebeliso ea ORP ho hloekisa likhoerekhoere Ho na le li-ion tse ngata tse fapaneng le oksijene e qhibilihisitsoeng tsamaisong ea likhoerekhoere, ke hore, menyetla e mengata ea redox. Ka sesebelisoa sa ho lemoha sa ORP, bokhoni ba redox ka har'a likhoerekhoere bo ka fumanoa ka nako e khutšoanyane haholo, e ka khutsufatsang haholo mokhoa oa ho lemoha le nako le ho ntlafatsa katleho ea mosebetsi.
Bokhoni ba redox bo hlokoang ke likokoana-hloko bo fapane boemong bo bong le bo bong ba ho hloekisa likhoerekhoere. Ka kakaretso, likokoana-hloko tsa aerobic li ka hōla ka holimo ho +100mV, 'me tse ntle ka ho fetisisa ke +300～+400mV; Likokoana-hloko tsa anaerobic tsa facultative li etsa phefumoloho ea aerobic ka holimo ho +100mV le ho hema ha anaerobic ka tlase ho +100mV; Likokoana-hloko tsa anaerobic li hloka -200～-250mV, tseo har'a tsona li tlamang methanogens ea anaerobic e hlokang -300～-400mV, 'me e nepahetseng ke -330mV.
Tikoloho e tloaelehileng ea redox ho aerobic activated sludge system e pakeng tsa +200+200+600mV.
E le leano la taolo kalafong ea aerobic biological, anoxic biological treatment le anaerobic biological treatment, ka ho beha leihlo le ho laola ORP ea likhoerekhoere, basebetsi ba ka laola ka maiketsetso ho hlaha ha maikutlo a likokoana-hloko. Ka ho fetola maemo a tikoloho ea ts'ebetso ea ts'ebetso, joalo ka:
● Ho eketsa molumo oa aeration ho eketsa khatello ea oksijene e qhibilihileng
● Ho eketsa lintho tsa oxidizing le mehato e meng ho eketsa bokhoni ba redox
● Ho fokotsa molumo oa moea ho fokotsa moea oa oksijene o qhibilihileng
● Ho eketsa mehloli ea carbon le ho fokotsa lintho ho fokotsa bokhoni ba redox, ka tsela eo ho khothalletsa kapa ho thibela karabelo.
Ka hona, batsamaisi ba sebelisa ORP e le paramethara ea taolo kalafong ea aerobic biological, kalafo ea anoxic biological le kalafo ea bioloji ea anaerobic ho fihlela litlamorao tse ntle tsa kalafo.
Phekolo ea Aerobic Biological:
ORP e na le kamano e ntle le ho tlosoa ha COD le nitrification. Ka ho laola molumo oa moea oa aerobic ka ORP, nako e sa lekaneng kapa e feteletseng ea ho kenya moea e ka qojoa ho netefatsa boleng ba metsi a metsi a hloekisitsoeng.
Anoxic biological treatment: ORP le nitrogen concentration in the denitrification state li na le kamano e itseng tšebetsong ea anoxic biological treatment, e ka sebelisoang e le mokhoa oa ho ahlola hore na tšebetso ea denitrification e felile. Ts'ebetso e nepahetseng e bonts'a hore ts'ebetsong ea denitrification, ha derivative ea ORP ho nako e le ka tlase ho -5, karabelo e phethahala haholoanyane. Mokelikeli ona o na le naetrojene ea nitrate, e ka thibelang tlhahiso ea lintho tse sa tšoaneng tse chefo le tse kotsi, tse kang hydrogen sulfide.
Phekolo ea likokoana-hloko ea anaerobic: Nakong ea karabelo ea anaerobic, ha ho etsoa lintho tse fokotsang, boleng ba ORP bo tla fokotseha; ka lehlakoreng le leng, ha ho fokotsa lintho ho fokotseha, boleng ba ORP bo tla eketseha 'me bo be bo tsitsitseng ka nako e itseng.
Ka bokhutšoanyane, bakeng sa phekolo ea likokoana-hloko tsa aerobic limela tsa ho hloekisa likhoerekhoere, ORP e na le kamano e ntle le biodegradation ea COD le BOD, 'me ORP e na le kamano e ntle le karabelo ea nitrification.
Bakeng sa phekolo ea anoxic biological, ho na le kamano e itseng pakeng tsa ORP le motsoako oa naetrojene ea nitrate sebakeng sa denitrification nakong ea phekolo ea anoxic biological, e ka sebelisoang e le mokhoa oa ho ahlola hore na ts'ebetso ea denitrification e felile. Laola phello ea phekolo ea karolo ea ts'ebetso ea ho tlosa phosphorus le ho ntlafatsa phello ea ho tlosa phosphorus. Ho tlosoa ha phosphorus ea likokoana-hloko le ho tlosoa ha phosphorus ho kenyelletsa mehato e 'meli:
Ntlha ea pele, sethaleng sa ho lokolloa ha phosphorus tlas'a maemo a anaerobic, libaktheria tsa fermentation li hlahisa mafura a acids tlas'a boemo ba ORP ho -100 ho -225mV. Li-acid tse mafura li kenngoa ke libaktheria tsa polyphosphate 'me phosphorus e lokolloa' meleng oa metsi ka nako e le 'ngoe.
Ea bobeli, ka letamo la aerobic, libaktheria tsa polyphosphate li qala ho senya mafura a mafura a kenngoa sethaleng se fetileng ebe o fetola ATP ho ADP ho fumana matla. Ho boloka matla ana ho hloka hore ho be le phosphorous e feteletseng e tsoang metsing. Boitšoaro ba phosphorus ea adsorbing bo hloka hore ORP ka letamong la aerobic e be pakeng tsa +25 le +250mV bakeng sa ho tlosoa ha phosphorus ea tlhaho ho etsahala.
Ka hona, basebetsi ba ka laola phello ea phekolo ea karolo ea ts'ebetso ea ho tlosa phosphorus ka ORP ho ntlafatsa phello ea ho tlosa phosphorus.
Ha basebetsi ba sa batle hore ho bokellana ha denitrification kapa nitrite ho etsahale ts'ebetsong ea nitrification, boleng ba ORP bo tlameha ho bolokoa ka holimo ho +50mV. Ka ho tšoanang, batsamaisi ba thibela ho hlahisa monko (H2S) tsamaisong ea likhoerekhoere. Batsamaisi ba tlameha ho boloka boleng ba ORP bo fetang -50mV pompong ho thibela sebopeho le karabelo ea sulfide.
Fetola nako ea moea le matla a tšebetso ho boloka matla le ho fokotsa tšebeliso. Ho feta moo, basebetsi ba ka boela ba sebelisa khokahano ea bohlokoa lipakeng tsa ORP le oksijene e qhibilihisitsoeng metsing ho lokisa nako ea moea le matla a aeration a tšebetso ka ORP, e le ho fihlela poloko ea matla le phokotso ea tšebeliso ha ba ntse ba kopana le maemo a karabelo ea bioloji.
Ka sesebelisoa sa ho lemoha sa ORP, basebetsi ba ka utloisisa ka potlako ts'ebetso ea ho hloekisoa ha likhoerekhoere le tlhahisoleseding ea boemo ba tšilafalo ea metsi e thehiloeng boitsebisong ba nako ea sebele ea maikutlo, kahoo ba hlokomela tsamaiso e hloekisitsoeng ea lihokelo tsa likhoerekhoere le tsamaiso e nepahetseng ea boleng ba tikoloho ea metsi.
Ho hloekisoa ha metsi a litšila, ho etsahala lintho tse ngata tsa redox, 'me lintlha tse amang ORP setsing se seng le se seng le tsona li fapane. Ka hona, ts'ebetsong ea likhoerekhoere, basebetsi ba boetse ba hloka ho tsoela pele ho ithuta kamano pakeng tsa oksijene e qhibilihisitsoeng, pH, mocheso, letsoai le lintlha tse ling metsing le ORP ho latela boemo ba 'nete ba setsi sa likhoerekhoere, le ho theha litekanyetso tsa taolo tsa ORP tse loketseng libaka tse fapaneng tsa metsi. .