Kunyango lwamanzi amdaka, ukubeka iliso kwimithwalo yezinto eziphilayo, ngakumbi iTotal Organic Carbon (TOC), ibaluleke kakhulu ekugcineni imisebenzi esebenzayo nesebenzayo. Oku kuyinyani ngakumbi kumashishini anenkunkuma eguquguqukayo kakhulu, efana necandelo lokutya nesiselo (F&B).
Kulo dliwano-ndlebe, uJens Neubauer kunye no-Christian Kuijlaars ovela kwi-Veolia Water Technologies & Solutions bathetha ne-AZoMaterials malunga nokubaluleka kokubeka iliso kwi-TOC kunye nendlela ukuqhubela phambili kwi-teknoloji ye-TOC ukuguqula iinkqubo zokucocwa kwamanzi amdaka.
Kutheni le nto ukujonga imithwalo ephilayo, ngakumbi iTotal Organic Carbon (TOC), ibalulekile kunyango lwamanzi amdaka?
UJens: Kuninzi lwamanzi amdaka, uninzi lwezinto ezingcolisayo zizinto eziphilayo, kwaye oku kuyinyani ngakumbi kwicandelo le-F&B. Ngoko ke, umsebenzi oyintloko wesityalo sokucocwa kwamanzi amdaka kukudiliza ezi zinto eziphilayo kwaye zisuswe kumanzi amdaka. Ukuqina kwenkqubo kwenza ukucocwa kwamanzi amdaka kukhawuleze kwaye kusebenze ngakumbi. Oku kufuna ukubekwa esweni okuthe gqolo kokubunjwa kwamanzi amdaka ukujongana ngokukhawuleza nakuphi na ukuguquguquka, ukuqinisekisa ukucoca okusebenzayo nangona amaxesha amafutshane onyango.
Iindlela zemveli zokulinganisa inkunkuma yezinto eziphilayo emanzini, njengemfuno ye-oksijini yeekhemikhali (COD) kunye neemvavanyo ze-oksijini ye-biochemical (BOD), zicotha kakhulu - zithatha iiyure ukuya kwiintsuku - zibenza bangafaneleki kwiinkqubo zonyango zanamhlanje, ngokukhawuleza. I-COD nayo yayifuna ii-reagents ezinetyhefu, ezinganqwenelekiyo. Ngokuthelekisa, ukujonga umthwalo we-organic usebenzisa uhlalutyo lwe-TOC kuthatha imizuzu embalwa kwaye ayibandakanyi ii-reagents ezinetyhefu. Ikulungele kakuhle uhlalutyo lwenkqubo kwaye inika iziphumo ezichanekileyo. Olu tshintsho olubhekiselele kumlinganiselo we-TOC lukwabonakaliswa kwimigangatho yamva nje ye-EU malunga nolawulo lokukhutshwa, apho umlinganiselo we-TOC uyindlela ekhethwayo. IKhomishini yokuPhunyeza iSigqibo (i-EU) 2016/902 iseke ezona ndlela zingcono zikhoyo (BAT) izigqibo phantsi koMyalelo 2010/75/EU wokucocwa kwamanzi amdaka aqhelekileyo/ulawulo lweenkqubo kwicandelo lemichiza. Izigqibo zeBAT ezilandelayo zingabhekiswa kwesi sihloko ngokunjalo.
Yeyiphi indima edlalwa yi-TOC esweni ekugcineni ukusebenza kakuhle kunye nokusebenza kweenkqubo zokucocwa kwamanzi amdaka?
UJens: Ukubeka iliso kwe-TOC kukubonelela ngolwazi oluxabisekileyo malunga nokulayishwa kwekhabhoni kwiindawo ezahlukeneyo kwinkqubo.
Ukubeka iliso kwi-TOC phambi kokuba unyango lwebhayoloji luyivumele ukuba ibone ukuphazamiseka ekulayishweni kwekhabhoni kwaye iyijike iye kumatanki e-buffer njengoko kufuneka. Oku kunokunqanda ukulayishwa ngokugqithisileyo kwebhayoloji kunye nokuyibuyisela kwinkqubo kamva, ukuvumela ukusebenza ngokukhuselekileyo nozinzo lwesityalo. Ukulinganisa i-TOC ngaphambi nangemva kwesinyathelo sokumisa kwakhona kuvumela abaqhubi ukuba balawule i-coagulant dosing ngokulungiselela ukongezwa kwekhabhoni ukuze bangalambi okanye bagqithise ibhaktheriya kwiitanki ze-aeration kunye / okanye ngexesha lezigaba ze-anoxic.
Ukujongwa kwe-TOC kunika ulwazi kumanqanaba ekhabhoni kwindawo yokukhupha kunye nokusebenza kakuhle kokususa. Ukubeka iliso kwi-TOC emva kwe-sedimentation yesibini ibonelela ngemilinganiselo yexesha lokwenyani lekhabhoni ekhutshwe kwindawo engqongileyo kwaye ingqina ukuba imida ihlangatyeziwe. Ngaphaya koko, ukujongwa kwezinto eziphilayo kubonelela ngolwazi kumanqanaba ekhabhoni ukuze kunyuswe unyango lwenqanaba eliphezulu ngeenjongo zokuphinda kusetyenziswe kwaye kunokunceda ukwenza idosi yeekhemikhali, i-membrane yonyango lwangaphambili, kunye ne-ozone kunye ne-UV dosing.
Ixesha lokuposa: Oct-17-2024