Ukusetshenziswa kwe-ORP ekuhlanzeni indle

Imele ini i-ORP ekuhlanzeni indle?
I-ORP imele amandla e-redox ekuhlanzeni indle. I-ORP isetshenziselwa ukukhombisa izakhiwo ze-macro redox zazo zonke izinto kwisisombululo esinamanzi. Ukuphakama kwamandla e-redox, kuqina indawo ye-oxidizing, futhi ukwehla kwamandla e-redox, kuqina indawo enciphisayo. Ngomzimba wamanzi, kuvame ukuba namandla amaningi e-redox, okwenza uhlelo lwe-redox oluyinkimbinkimbi. Futhi amandla ayo e-redox angumphumela ophelele wokusabela kwe-redox phakathi kwezinto eziningi ze-oxidizing nezinto ezinciphisayo.
Nakuba i-ORP ingeke isetshenziswe njengenkomba yokuhlangana kwento ethile eyenza i-oxidizing kanye nento eyehlisayo, isiza ukuqonda izici ze-electrochemical zomzimba wamanzi nokuhlaziya izakhiwo zomzimba wamanzi. Kuyinkomba ebanzi.
Ukusetshenziswa kwe-ORP ekuhlanzeni indle Kunama-ion amaningi aguquguqukayo kanye ne-oksijini encibilikile ohlelweni lokukhucululwa kwendle, okungukuthi, amandla amaningi e-redox. Ngethuluzi lokubona i-ORP, amandla e-redox endle angatholwa ngesikhathi esifushane kakhulu, okungafinyeza kakhulu inqubo yokuthola nesikhathi futhi kuthuthukise ukusebenza kahle komsebenzi.
Amandla e-redox adingwa ama-microorganisms ahlukile esigabeni ngasinye sokuhlanza indle. Ngokuvamile, ama-microorganisms e-aerobic angakhula ngaphezu kuka-+100mV, futhi okungcono kakhulu ngu-+300++400mV; ama-microorganisms ane-facultative anaerobic enza ukuphefumula kwe-aerobic ngaphezu kuka-+100mV kanye nokuphefumula kwe-anaerobic ngaphansi kuka-+100mV; i-anaerobic bacterium idinga -200～-250mV, phakathi kwayo isibopho se-anaerobic methanogens idinga -300～-400mV, futhi esiphezulu ngu-330mV.
Indawo evamile ye-redox ohlelweni lwe-sludge olucushiwe iphakathi kuka-+200+200+600mV.
Njengesu lokulawula ekwelashweni kwebhayoloji ye-aerobic, ukwelashwa kwe-anoxic biological kanye nokwelashwa kwebhayoloji ye-anaerobic, ngokuqapha nokuphatha i-ORP yendle, abasebenzi bangakwazi ukulawula ngokuzenzela ukuvela kokusabela kwebhayoloji. Ngokushintsha izimo zemvelo zenqubo yokusebenza, njenge:
● Ukwenyusa umthamo wokungenisa umoya ukuze kwandiswe ukugcwala komoyampilo oncibilikisiwe
● Ukwengeza izinto ezi-oxidizing nezinye izinyathelo zokwandisa amandla e-redox
● Ukunciphisa ivolumu yokungenisa umoya ukuze kuncishiswe ukugcwala komoyampilo oncibilikisiwe
●Ukwengeza imithombo yekhabhoni kanye nokunciphisa izinto ukunciphisa amandla e-redox, ngaleyo ndlela kuphromothwe noma kuvinjwe ukusabela.
Ngakho-ke, abaphathi basebenzisa i-ORP njengepharamitha yokulawula ekwelashweni kwebhayoloji ye-aerobic, ukwelashwa kwe-anoxic biological kanye nokwelashwa kwebhayoloji ye-anaerobic ukuze bathole imiphumela yokwelapha engcono.
Ukwelashwa kwe-Aerobic biological:
I-ORP inokuhlobana okuhle nokususwa kwe-COD kanye ne-nitrification. Ngokulawula umthamo womoya we-aerobic nge-ORP, isikhathi sokungenisa umoya esinganele noma eseqile singagwenywa ukuze kuqinisekiswe ikhwalithi yamanzi ahlanzekile.
Ukwelashwa kwebhayoloji ene-anoxic: I-ORP kanye nokugxiliswa kwe-nitrogen esimweni sokuhlukaniswa kwe-denitrification kunokuhambisana okuthile enqubweni yokwelashwa kwe-anoxic biological, engasetshenziswa njengenkomba yokwahlulela ukuthi inqubo yokuphika isiphelile yini. Ukuzijwayeza okufanelekile kubonisa ukuthi enqubweni yokukhishwa kwe-denitrification, lapho okuphuma kokunye kwe-ORP kuya kusikhathi kungaphansi kuka -5, ukusabela kuphelele kakhulu. Amanzi angcolile aqukethe i-nitrate nitrogen, engavimbela ukukhiqizwa kwezinto ezihlukahlukene ezinobuthi neziyingozi, njenge-hydrogen sulfide.
Ukwelashwa kwebhayoloji ye-Anaerobic: Ngesikhathi sokusabela kwe-anaerobic, lapho kukhiqizwa izinto ezinciphisayo, inani le-ORP lizokwehla; ngokuphambene, lapho ukwehlisa izinto kuncipha, inani le-ORP lizokhula futhi livame ukuzinza esikhathini esithile.
Ngamafuphi, ukwelashwa kwebhayoloji ye-aerobic ezimbonini zokuhlanza indle, i-ORP inokuhlobana okuhle nokuwohloka kwe-COD ne-BOD, futhi i-ORP inokuhlobana okuhle nokusabela kwe-nitrification.
Ngokwelashwa kwebhayoloji ene-anoxic, kukhona ukuhlobana okuthile phakathi kwe-ORP nokugxiliswa kwe-nitrate nitrogen esimweni sokuhlukaniswa phakathi kwe-anoxic biological treatment, engasetshenziswa njengenkomba yokwahlulela ukuthi inqubo ye-denitrification isiphelile yini. Lawula umphumela wokwelapha wesigaba senqubo yokususa i-phosphorus futhi uthuthukise umphumela wokususwa kwe-phosphorus. Ukususwa kwe-phosphorus yezinto eziphilayo kanye nokususwa kwe-phosphorus kuhlanganisa izinyathelo ezimbili:
Okokuqala, esigabeni sokukhululwa kwe-phosphorus ngaphansi kwezimo ze-anaerobic, amagciwane okuvutshelwa akhiqiza ama-fatty acids ngaphansi kwesimo se-ORP ku -100 kuya ku-225mV. Ama-fatty acids amuncwa amagciwane e-polyphosphate futhi i-phosphorus ikhishwa emzimbeni wamanzi ngesikhathi esifanayo.
Okwesibili, echibini le-aerobic, amagciwane e-polyphosphate aqala ukuthunaza ama-fatty acids amuncwa esigabeni sangaphambilini futhi aguqule i-ATP ibe yi-ADP ukuze ithole amandla. Ukugcinwa kwala mandla kudinga ukufakwa kwe-phosphorus eningi emanzini. Ukusabela kwe-adsorbing phosphorus kudinga ukuthi i-ORP echibini le-aerobic ibe phakathi kuka +25 kanye +250mV ukuze kwenzeke ukususwa kwe-phosphorus yebhayoloji.
Ngakho-ke, abasebenzi bangalawula umphumela wokwelapha wesigaba senqubo yokususa i-phosphorus nge-ORP ukuze bathuthukise umphumela wokususwa kwe-phosphorus.
Uma abasebenzi bengafuni ukuthi i-denitrification noma ukunqwabelana kwe-nitrite kwenzeke ngenqubo ye-nitrification, inani le-ORP kufanele ligcinwe lingaphezu kuka-+50mV. Ngokufanayo, abaphathi bavimbela ukukhiqizwa kwephunga (H2S) ohlelweni lwendle. Abaphathi kufanele bagcine inani le-ORP elingaphezu kuka -50mV epayipini ukuvimbela ukwakheka nokusabela kwama-sulfide.
Lungisa isikhathi sokungenisa umoya kanye namandla okungena komoya kwenqubo ukuze wonge amandla futhi unciphise ukusetshenziswa. Ngaphezu kwalokho, abasebenzi bangaphinda basebenzise ukuhlobana okubalulekile phakathi kwe-ORP nomoya-mpilo oncibilikisiwe emanzini ukuze balungise isikhathi somoya kanye namandla okungena komoya enqubo nge-ORP, ukuze bathole ukonga amandla kanye nokunciphisa ukusetshenziswa ngenkathi behlangabezana nezimo zokusabela kwebhayoloji.
Ngethuluzi lokuhlonza le-ORP, abasebenzi bangakwazi ukuqonda ngokushesha inqubo yokuphendula ukuhlanzwa kwendle kanye nolwazi lwesimo sokungcoliswa kwamanzi okusekelwe olwazini lwempendulo yesikhathi sangempela, ngaleyo ndlela beqaphela ukuphathwa okucolisisiwe kwezixhumanisi zokuhlanza indle kanye nokuphathwa kahle kwekhwalithi yendawo yamanzi.
Ekulashweni kwamanzi angcolile, ukusabela okuningi kwe-redox kwenzeka, futhi izici ezithinta i-ORP ku-reactor ngayinye nazo zihlukile. Ngakho-ke, ekuhlanzeni indle, abasebenzi kudingeka baqhubeke nokutadisha ukuhlobana phakathi komoyampilo oncibilikisiwe, i-pH, izinga lokushisa, usawoti kanye nezinye izici emanzini kanye ne-ORP ngokwesimo sangempela sesikhungo sokukhuculula indle, futhi basungule imingcele yokulawula i-ORP elungele izindawo ezihlukene zamanzi. .