I-BOD (i-Biochemical Oxygen Demand), ngokwendlela yokutolika okusemgangathweni kazwelonke, i-BOD ibhekisela kwi-biochemical.
Imfuno yeoksijini ibhekisa kwioksijini enyityilisiweyo etyiwa ziintsholongwane kwi-biochemical Inkqubo yeMichiza yokubola ezinye izinto ezinokonakalisa amanzi phantsi kweemeko ezithile.
Impembelelo ye-BOD: Amanzi amdaka asekhaya kunye namanzi amdaka avela kwimizi-mveliso aqulethe inani elikhulu lezinto ezahlukeneyo zezinto eziphilayo. Xa ezi zinto ziphilayo zibola emanzini emva kokungcolisa amanzi, zisebenzisa isixa esikhulu seoksijini enyityilisiweyo, ngaloo ndlela ziphazamisa ukulungelelana kweoksijini emanzini, ziwohloka umgangatho wamanzi, kwaye zibangele ukufa kweentlanzi nezinye izinto eziphilayo zasemanzini ngenxa ye-hypoxia. . Iikhompawundi ze-organic eziqulethwe kwimizimba yamanzi zintsonkothile kwaye zinzima ukumisela icandelo ngalinye. Abantu bahlala besebenzisa ioksijini etyiwa yinto ephilayo emanzini phantsi kweemeko ezithile ukuvakalisa ngokungathanga ngqo umxholo wezinto eziphilayo emanzini, kwaye imfuno ye-oksijini ye-Biochemical sesinye sezibonakaliso ezibalulekileyo. Ikwabonakalisa ukubola kwezinto eziphilayo kumanzi amdaka.
Yintoni i-BOD5: (BOD5) ibhekisela kwisixa se-oksijini enyibilikileyo esetyenzisiweyo xa isampuli ifakwe kwindawo emnyama (20 ± 1) ℃ iintsuku ezi-5 ± 4 iiyure.
I-Microbial electrode yinzwa edibanisa iteknoloji ye-microbial kunye neteknoloji yokufumanisa i-electrochemical. Ubukhulu becala iqulathe i-electrode ye-oksijini enyibilikileyo kunye nefilimu ye-microbial engashukumiyo encanyathiselwe ngokuqinileyo kumphezulu wayo ophefumlayo. Umgaqo wokuphendula kwizinto ze-BOD kukuba xa ifakwe kwi-substrate ngaphandle kwezinto ze-B0D kwiqondo lokushisa elingaguqukiyo kunye noxinzelelo lwe-oksijini enyibilikileyo, ngenxa yomsebenzi othile wokuphefumla we-microorganisms, iimolekyuli ze-oksijini ezinyibilikileyo kwi-substrate zisasazeka kwi-oxygen electrode ngokusebenzisa. i-membrane ye-microbial kwinqanaba elithile, kunye ne-electrode ye-microbial ikhupha i-current-state current; Ukuba i-BOD ifakwe kwisisombululo esisezantsi, i-molecule ye-substance iya kusasazeka kwi-microbial membrane kunye ne-oxygen molecule. Ngenxa yokuba i-microorganism kwi-membrane iya ku-Anabolism into ye-BOD kwaye idle i-oksijini, i-molecule ye-oksijini engena kwi-electrode ye-oksijini iya kuncitshiswa, oko kukuthi, izinga lokusabalalisa liya kuncitshiswa, ukuphuma kwangoku kwe-electrode kuya kuncitshiswa, kwaye iya kuwa. kwixabiso elitsha elizinzileyo phakathi kwemizuzu embalwa. Ngaphakathi koluhlu olufanelekileyo lokugxininiswa kwe-BOD, kukho ubudlelwane bomgca phakathi kokunciphisa i-electrode output current kunye ne-BOD concentration, ngelixa kukho ubudlelwane bobuninzi phakathi kwe-BOD yoxinaniso kunye nexabiso le-BOD. Ngoko ke, ngokusekelwe ekunciphiseni kwangoku, i-BOD yesampula yamanzi evavanyiweyo inokumiselwa.
I-LH-BODK81 ye-Biological Chemical imfuno ye-oksijini ye-BOD inzwa ye-microbial ivavanya ngokukhawuleza, xa kuthelekiswa neendlela eziqhelekileyo zokulinganisa i-BOD, olu hlobo olutsha lwenzwa yokukhanya luneenzuzo ezininzi. Okokuqala, iindlela zemveli zokulinganisa i-BOD zifuna inkqubo ende yokulima, ihlala ithatha iintsuku ezi-5-7, ngelixa izinzwa ezintsha zithatha imizuzu embalwa ukugqiba umlinganiselo. Okwesibini, iindlela zokulinganisa zendabuko zifuna inani elikhulu leekhemikhali ze-reagents kunye nezixhobo zeglasi, ngelixa ii-sensors ezintsha azifuni naziphi na i-reagents okanye izixhobo, ukunciphisa iindleko zokulinga kunye notyalo-mali lwabasebenzi. Ukongezelela, iindlela zendabuko zokulinganisa i-BOD zixhomekeke kwiimeko zendalo ezifana nokushisa kunye nokukhanya, ngelixa ii-sensors ezintsha zinokulinganisa kwiindawo ezahlukeneyo kwaye ziphendule ngokukhawuleza kwiinguqu.
Ke ngoko, olu hlobo olutsha lwenzwa ye-optical lunamathuba abanzi okusebenza. Ukongeza ekusetyenzisweni kwintsimi yokuhlola umgangatho wamanzi, le nzwa inokusetyenziselwa kwiinkalo ezahlukeneyo ezifana nokutya, amayeza, ukukhuselwa kwendalo, kunye nokufunyanwa kwezinto eziphilayo ekufundiseni ilabhoratri.
Ixesha lokuposa: Jun-19-2023
