Ekulapheni amanzi angcolile, ukuqapha imithwalo yemvelo, ikakhulukazi i-Total Organic Carbon (TOC), sekubalulekile ekugcineni ukusebenza kahle nangempumelelo. Lokhu kuyiqiniso ikakhulukazi ezimbonini ezinemfucuza eshintshashintsha kakhulu, njengomkhakha wokudla nesiphuzo (F&B).
Kule ngxoxo, uJens Neubauer noChristian Kuijlaars abavela ku-Veolia Water Technologies & Solutions bakhuluma ne-AZoMaterials ngokubaluleka kokuqapha kwe-TOC nokuthi intuthuko kubuchwepheshe be-TOC iguqula kanjani izinqubo zokuhlanza amanzi angcolile.
Kungani ukuqapha imithwalo yemvelo, ikakhulukazi i-Total Organic Carbon (TOC), kubalulekile ekuhlanzeni amanzi angcolile?
UJens: Emanzini angcolile amaningi, ukungcola okuningi kungokwemvelo, futhi lokhu kuyiqiniso ikakhulukazi emkhakheni we-F&B. Ngakho-ke, umsebenzi oyinhloko wesikhungo sokuhlanza indle ukudiliza lezi zinto eziphilayo futhi zikhishwe emanzini angcolile. Ukuqiniswa kwenqubo kwenza ukuhlanzwa kwamanzi angcolile kusheshe futhi kusebenze kahle. Lokhu kudinga ukuqapha okuqhubekayo kokwakheka kwamanzi angcolile ukuze kulungiswe ngokushesha noma yikuphi ukuguquguquka, ukuqinisekisa ukuhlanza okuphumelelayo naphezu kwezikhathi zokwelashwa ezimfushane.
Izindlela zendabuko zokulinganisa udoti wezinto eziphilayo emanzini, njengesidingo sekhemikhali komoyampilo (COD) nokuhlolwa kwesidingo somoya-mpilo we-biochemical (BOD), zihamba kancane kakhulu - zithatha amahora ukuya ezinsukwini - zizenza zingafaneleki izinqubo zokwelashwa zesimanje, ezisheshayo. I-COD nayo yayidinga ama-reagents anobuthi, okungafiseleki. Uma kuqhathaniswa, ukuqapha umthamo wezinto eziphilayo kusetshenziswa ukuhlaziywa kwe-TOC kuthatha imizuzu embalwa kuphela futhi akubandakanyi izinto ezivuselela ubuthi. Ifaneleka kahle ekuhlaziyeni inqubo futhi iletha nemiphumela enembe kakhulu. Lolu shintsho oluya esilinganisweni se-TOC luphinde luboniswe kumazinga akamuva e-EU mayelana nokulawulwa kokukhipha, lapho ukukala kwe-TOC kuyindlela ekhethwayo. Isinqumo Sekhomishana Sokusebenzisa Isinqumo (EU) 2016/902 sisungule iziphetho zamasu atholakalayo (BAT) angcono kakhulu ngaphansi koMyalelo 2010/75/EU wezinhlelo ezivamile zokuhlanza/ukuphatha amanzi angcolile emkhakheni wamakhemikhali. Izinqumo ezilandelayo ze-BAT zingabhekiselwa kulesi sihloko futhi.
Iyiphi indima edlalwa ukuqapha kwe-TOC ekugcineni ukusebenza kahle nempumelelo kwezinhlelo zokuhlanza amanzi angcolile?
U-Jens: Ukuqapha kwe-TOC kunikeza ulwazi olubalulekile mayelana nokulayishwa kwekhabhoni ezindaweni ezihlukahlukene ohlelweni.
Ukuqapha i-TOC ngaphambi kokwelashwa kwebhayoloji kuyivumela ukuthi ithole iziphazamiso ekulayisheni ikhabhoni bese iyiphambukisela kumabhafa amathangi njengoba kudingeka. Lokhu kungagwema ukulayisha ngokweqile ibhayoloji futhi kuyibuyisele enqubweni ngokuhamba kwesikhathi, okuvumela ukusebenza okuphephile nokuzinzile kwesitshalo. Ukulinganisa i-TOC ngaphambi nangemva kwesinyathelo sokuxazulula futhi kuvumela opharetha ukuthi balawule umthamo we-coagulant ngokuthuthukisa ukufakwa kwekhabhoni ukuze bangabulawa indlala noma badle ngokweqile amagciwane emathangini okukhipha umoya kanye/noma phakathi nezigaba ze-anoxic.
Ukuqapha kwe-TOC kunikeza ulwazi ngamazinga ekhabhoni endaweni yokukhipha kanye nokusebenza kahle kokukhipha. Ukuqapha i-TOC ngemva kokuthululwa kwe-sedimentation yesibili kunikeza izilinganiso zesikhathi sangempela sekhabhoni ekhishelwe endaweni ezungezile futhi kufakazela ukuthi imikhawulo iyafinyelelwa. Ngaphezu kwalokho, ukuqapha kwezinto eziphilayo kunikeza ulwazi ngamaleveli ekhabhoni ukuze kuthuthukiswe ukwelashwa okuphakeme ngezinjongo zokuphinda zisetshenziswe futhi kungasiza ekuthuthukiseni umthamo wamakhemikhali, ukwelashwa kwangaphambili kwe-membrane, kanye nomthamo we-ozone kanye ne-UV.
Isikhathi sokuthumela: Oct-17-2024