Yintoni iI-COD BOD Depalzer?
I-COD (i-Cocintige ye-Cociggen) kunye neBod (ye-Biological Oskoging) ngamanyathelo amabini esixa seoksijini esifunwayo ukuba siphule izinto eziphilayo emanzini. I-COD ngumlinganiso weoksijini ofunekayo ukuze uqhekeze umlinganiso wezinto eziphilayo, ngelixa i-BOD ngumlinganiso weoksijini efunekayo ukuze uchithe izinto eziphilayo, usebenzisa i-microorganisms.
I-CoD / I-BOD Decalzer sisixhobo esisetyenziselwa ukulinganisa i-CoD kunye ne-bod yesampulu yamanzi. Abahlalutyo basebenza ngokulinganisa ioksijini kwisampulu yamanzi ngaphambi nasemva komcimbi ophilayo sele uvunyelwe ukuba ahlukane. Umahluko kwi-oxygen uxinzelelo ngaphambili nasemva kwenkqubo yokuqhekeka isetyenziselwa ukubala i-CoD okanye i-BOD yesampulu.
I-CoD kunye nemilinganiselo ye-BOD ibalulekile izalathiso zomgangatho wamanzi kwaye zihlala zisetyenziselwa ukujonga ukusebenza kwezityalo zonyango lwamanzi amdaka kunye nezinye iinkqubo zonyango lwamanzi. Zikwasetyenziswa nokuvavanya ifuthe elinokubakho lokukhupha amanzi amdaka kwimizimba yamanzi, njengamanqanaba aphezulu omhlaba oncedileyo emanzini anokunciphisa umxholo weoksijini kunye nokulimala ubomi basemanzini.
Ilinganiswa njani i-BOD kunye ne-COD?
Kukho iindlela ezininzi ezinokusetyenziselwa ukulinganisa i-BOD (imfuno ye-biologiologi yebhayoloji) kunye ne-CoD (i-OXYGENCY COD) emanzini. Nantsi isishwankathelo esifutshane ngeendlela ezimbini eziphambili:
Indlela yokuhamba: Kwindlela yokusela, iqumrhu elaziwayo lamanzi lichithwe ngenani elithile lamanzi edini, enamanqanaba asezantsi kakhulu e-organic. Isampulu ye-DILLElweyo ifakwe ixesha elithile (rhoqo iintsuku ezi-5) kubushushu obulawulwayo (ngesiqhelo i-20 ° C). Uxinzelelo lweoksijini kwisampulu ilinganiswa ngaphambili nasemva kokufakwa. Umahluko kwi-oxygen uxinzelelo ngaphambi nasemva kokuba i-inqubiotion isetyenziselwa ukubala i-bod yesampulu.
Ukulinganisa i-COD, kulandelwa inkqubo efanayo, kodwa isampulu inyangwa ngearhente ye-com oxiding (efana ne-potassium dichromate) endaweni yokuba ifakwe. Uxinzelelo lweoksijini ochithwe yimpendulo yekhemikhali isetyenziselwa ukubala i-CoD yesampulu.
Indlela yokuphefumla Ukugxininiswa kweoksijini kwi-respirometer kulinganiswa ngaphezulu kwexesha elithile (ihlala kwiintsuku ezi-5) kubushushu obulawulwayo (ngesiqhelo i-20 ° C). I-BOD yesampulu ibalwa ngokusekwe kwinqanaba apho uxinzelelo lweoksijini luyancipha ngokuhamba kwexesha.
Zombini iindlela zokudakumba kunye nendlela yokuphefumla zizinto ezenziweyo ezisetyenzisiweyo kwihlabathi liphela ukulinganisa i-BOD kunye ne-cod emanzini.
Yintoni i-bod kunye ne-cod?
I-Bod (i-Biologional Ocygen Ibango) kunye ne-CoD (imfuno yeoksijini) yimilinganiselo yexabiso le-oxygen efunekayo ukuze aphule izinto eziphilayo emanzini. I-BOD kunye namanqanaba e-COD anokusetyenziselwa ukuvavanya umgangatho wamanzi kunye nefuthe lokukhupha amanzi amdaka kwimizimba yamanzi.
I-BOD kunye nemida ye-CoD yimigangatho esetyenziselwa ukulawula amanqanaba e-BOD kunye ne-CoD emanzini. Le mida ihlala isetiwa kwiiarhente zolawulo kwaye isekwe kumanqanaba amkelekileyo ophilayo kwizinto eziphilayo emanzini ezingabinayo ifuthe elibi kwindalo esingqongileyo kwindalo esingqongileyo kwindalo esingqongileyo kwindalo esingqongileyo kwindalo esingqongileyo kwindalo esingqongileyo kwindalo esingqongileyo. I-BOD kunye nemida ye-COD ihlala ibonakaliswa kwi-milligrams yeoksijini ngelitha yamanzi (MG / L).
Imida yeBod isetyenziselwa ukulawula inani lezinto eziphilayo kumanzi amdaka akhutshwe kwimizimba yendalo, enje ngemilambo kunye namachibi kunye namachibi. Amanqanaba aphezulu e-BOD emanzini anokunciphisa umxholo weoksijini wamanzi kunye nokulimala ubomi basemanzini. Ngenxa yoko, izityalo zonyango lwamanzi amdaka ziyafuneka ukufezekisa imida ethile ye-bod xa ikhupha amanzi amdaka.
Imida ye-COD isetyenziselwa ukulawula amanqanaba omzimba wezinto eziphilayo kunye nezinye izinto ezingcolileyo kumanzi amdaka omzi-mveliso. Amanqanaba aphezulu e-CoD emanzini anokubonisa ubukho bezinye izinto eziyityhefu okanye eziyingozi, kwaye unokunciphisa kwakhona i-teatigen yamanzi kunye nokulimala ubomi basemanzini. Iindawo zemveliso zihlala zifuneka ukufezekisa imida ethile ye-CoD xa ikhupha amanzi amdaka.
Ngokubanzi, imida ye-BOD kunye ne-CoD zizixhobo ezibalulekileyo zokukhusela indalo kunye nokuqinisekisa ukuba imigangatho yamanzi kwimizimba yendalo yamanzi.
IXESHA LOKUQALA: UJan-04 ukuya ku-023
