Okwangoku, i-COD eqhelekileyo yamanzi amdaka idlula umgangatho ikakhulu ibandakanya i-electroplating, ibhodi yesekethe, ukwenza iphepha, amayeza, i-textile, ukuprinta kunye nokudaya, iikhemikhali kunye namanye amanzi amdaka, zithini ke iindlela zokunyanga amanzi amdaka e-COD?Masihambe siye kubona kunye.
Ukuhlelwa kweCOD yamanzi amdaka.
Imithombo yokuvelisa amanzi amdaka yahlulahlulwe yaba: amanzi amdaka emizi-mveliso, amanzi amdaka ezolimo, kunye namanzi amdaka ezonyango.
Amanzi amdaka asekhaya abhekisa kumxube ontsonkothileyo weentlobo ezahlukeneyo zezinto eziphilayo ezenziwe ngezinto ezingaphiliyo kunye nezinto eziphilayo, kubandakanywa:
① Amasuntswana aqinileyo namancinci amakhulu ajingayo
②Ii-colloidal kunye ne-gel-ezifana ne-diffusers
③Isisombululo esisulungekileyo.
Iindlela zokunyanga amanzi amdaka e-COD ziquka:
Ukususwa kwe-COD nge-coagulation method: indlela yokudibanisa imichiza inokususa ngokufanelekileyo izinto eziphilayo kumanzi amdaka kunye nokunciphisa i-COD kumlinganiselo omkhulu.Inkqubo ye-coagulation yamkelwa, ngokudibanisa i-flocculant, usebenzisa i-adsorption kunye ne-bridging ye-flocculant, umaleko ophindwe kabini wombane uxinzelelwe, ukuze i-colloid kunye nento exhonyiweyo emanzini ingabikho, idibanise, kwaye ifakwe kwi-floc, kwaye emva koko i-sedimentation okanye umoya. Inkqubo ye-flotation isetyenziselwa ukususa iiNtsholongwane zihlulwe emanzini, ukuze kuphunyezwe injongo yokucoca umzimba wamanzi.
Indlela ye-Biological yokususa i-COD: Indlela ye-Biological yindlela yokucoca amanzi amdaka exhomekeke kwi-microbial enzymes ukuze i-oxidize okanye inciphise izinto eziphilayo ukutshabalalisa iibhondi ezingaxutywanga kunye ne-chromophores ukufezekisa injongo yonyango.Kwiminyaka yakutshanje, ii-microorganisms zisetyenziswe ngokubanzi kunyango lokukhuhla amanzi amdaka ngenxa yesantya sazo sokuvelisa ngokukhawuleza, ukuguquguquka okunamandla kunye neendleko eziphantsi.
Ukususwa kweCOD ye-Electrochemical: Undoqo wonyango lwamanzi amdaka e-electrochemical kukusebenzisa i-electrolysis ngokuthe ngqo okanye ngokungathanga ngqo ukususa ungcoliseko emanzini, okanye ukuguqula izinto eziyityhefu zibe zizinto ezingeyotyhefu nezinetyhefu ephantsi.
Ukususwa kwe-COD nge-micro-electrolysis: Itekhnoloji ye-Micro-electrolysis okwangoku iyindlela efanelekileyo yokunyanga amanzi amdaka adityanisiweyo aphezulu, awaziwa ngokuba yi-electrolysis yangaphakathi.Ukuveliswa kusebenzisa i-micro-electrolysis imathiriyeli ukugcwalisa amanzi amdaka phantsi kwemeko yokungabikho kombane, kwaye ivelise i-1.2V enokubakho umahluko ngokwayo ukuze i-electrolyze amanzi amdaka ukufezekisa injongo yokuthotywa kwezinto ezingcolileyo eziphilayo.
Ukususwa kwe-COD ngendlela yokufunxa: i-carbon activated, i-macroporous resin, i-bentonite kunye nezinye izinto ezisebenzayo ze-adsorption zingasetyenziselwa ukubhengeza kunye nokuphatha i-particulate organic matter kunye ne-chroma emanzini amdaka.Ingasetyenziswa njengonyango lwangaphambili ukunciphisa iCOD ekulula ukuyiphatha.
Indlela ye-Oxidation yokususa i-COD: Kwiminyaka yakutshanje, ukusetyenziswa kweteknoloji ye-photocatalytic oxidation kwintsimi yokucocwa kwamanzi amdaka kunamathuba amahle emarike kunye neenzuzo zezoqoqosho, kodwa kusekho iingxaki ezininzi kuphando kule ntsimi, njengokufumana izixhobo eziphezulu zokusebenza kakuhle. , ukuhlukana kunye nokubuyiselwa kwee-catalysts kulinda.
Ixesha lokuposa: Apr-17-2023
