Ukuhlanjululwa kobuchwephetsha njengetekhnoloji yesiko yokuqaba mhlophe, amanzi amdaka akhutshwa kwinkqubo yokufaka iblitshi anezinto ezingcolisayo ezinjengeediyoksini, kwaye ii-organic chloride kunzima ukuzithoba kwaye zingcolise imeko-bume.
Itekhnoloji yeOzone isetyenziswa kwishishini lephepha ukwenza i-pulp bleaching kunye nokwahlulahlula umbala, ukucoceka kwamanzi amdaka, kunye nonyango lwamanzi amdaka. I-Ozone isisisombululo esithandwayo kwishishini lephepha ngenxa yexabiso eliphantsi, ungcoliseko lokusingqongileyo kunye nokusetyenziswa ngokubanzi.
1. I-ozone pulp bleaching
I-ozone yiarhente yokufaka umbala kwi-oxidizing. Kwinkqubo ye-pulp bleaching, i-ozone iphendula nge-pulp lignin nge-oxidation, ebangela ukuba i-chromophore iphulukane nobuchule bayo "bokufaka imibala" kunye nokufezekisa umbala. Ukongeza ekususeni izinto ezinemibala, iphinda isuse intsalela yelignin kunye nezinye izinto ezingcolileyo, iphucula ubumhlophe nokucoceka kwempuphu, kwaye yenza ubumhlophe buhlale.
Izinto eziluncedo ze-ozone mhlophe:
1. I-ozone bleaching yinkqubo engenachlorine kwaye ayinangcoliseko kwindalo esingqongileyo;
2. I-ozone sisixhobo esomeleleyo, esinokuphinda sisebenze kwakhona kunye nokusebenza kakuhle;
3. Buyisela iklorini kwinkqubo yokugungxula amanzi ukuze kuncitshiswe ukukhutshwa kwekloride;
4. Ukusabela kwe-ozone oxidation kuyakhawuleza, kunciphisa iindleko zokwenza mhlophe;
5, i-ozone i-oxidation ikhono lokucoca, ukuphucula ubumhlophe bephepha kunye nokunciphisa ubumthubi bompuphu.
Unyango lwamanzi amdaka e-ozone pulp
I-ozone sisixhobo esomeleleyo esisetyenziswa ekunyangeni kwangaphambili kunye nonyango oluphambili lwamanzi amdaka avela kwimizi-mveliso. Inemisebenzi emininzi kunyango lwamanzi: inzalo, ukucola umbala kunye nokubola kwe-oxidative. I-ozone isetyenziselwa ubukhulu becala ukucocwa korhulumente kunyango lwamanzi amdaka. Ukuthotywa kwemicimbi yendalo kunye nokunciphisa amaxabiso e-COD kunye ne-BOD.
Isiphumo seOzone esomeleleyo seoksijini sinokubolisa umbandela we-macromolecule kwizinto ezincinci eziphilayo, utshintshe ityhefu yongcoliseko, kunye nokuwohloka kwemichiza. Ngexesha elifanayo lokuthotywa kwezinto eziphilayo, i-COD kunye ne-BOD kufanelekile ukuba kuncitshiswe ukuphucula ngakumbi umgangatho wamanzi.
Xa ujongene nengxaki ye-chromaticity enkulu yamanzi amdaka, i-ozone oxidation inokubangela ukuba umbala wedayi uncede umbala okanye ibhondi ebambekayo yohlobo lwe-chromogenic ukuba yaphulwe, kwaye kwangaxeshanye itshabalalise umjikelo weqela elenza iqela le-chromophore, Ngokwenza njalo, ucocelela amanzi amdaka.
Xa kuthelekiswa nenkqubo yemveli yeklorine, i- ozone inezibonelelo ezibonakalayo kwimveliso yephepha. Inepropathi eyomeleleyo ye-oxidizing, isantya esiphezulu kwaye akukho kungcoliseka kwendalo. Ayinakho ukunciphisa kuphela iindleko zempuphu yokukhanya, kodwa inciphise nokukhutshwa kongcoliseko. Kule mihla, ukhuselo lokusingqongileyo lubaluleke ngakumbi, iteknoloji ye-ozone idlale indima enkulu.
Ixesha Post: Sep-07-2019