Umuntu ovundayo
Ensimini yamakhemikhali, i-floccution yinqubo lapho izinhlayiya ze-colloidal ziphuma khona kusuka kufomu le-fleccent noma eflethini kusuka ekumisweni ngokuzenzakalelayo noma ngokungezwa kwesicacisi. Le nqubo ihlukile ekuvutheni kwezulu kulokho i-colloid imiswe kuphela ku-ketshezi njengohlaka oluzinzile ngaphambi kokufakelwa phansi futhi empeleni ayichithwa kusisombululo.
Ukuhlangana nokuFlocculation kuyizinqubo ezibalulekile ekwelashweni kwamanzi. Isenzo se-cooationaition ukususa kanye nezinhlayiya ezihlanganisa ukuhlangana nokuxhumana kwamakhemikhali phakathi kwamabombo futhi i-colloid, futhi i-floccurciate kanye ne-fleaticiate izinhlayiya ezingazinzile ngokuzilungiselela zibe yi-floccution.
Ukuchazwa kwethemu
Ngokusho kwe-IUPAC, i-Floccution "inqubo yokuxhumana nokunamathela lapho izinhlayiya zefomu lefomu lokuhlakazeka likhulu".
Ngokuyisisekelo, i-floccation inqubo yokwengeza i-flocculant ukuze izinhlayiya ezinzile ezinzile. Ngasikhathi sinye, i-floccution inqubo yokuxuba ekhuthaza ukuhlangana futhi inomthelela ekusetshenzisweni kwezinhlayiyana. I-coagulant ejwayelekile yi-Al2 (So4) 3 • 14h2o.
Inkambu yesicelo
Ubuchwepheshe bokwelashwa kwamanzi
I-Flocculation kanye nezulu kusetshenziswa kabanzi ekuhlanzweni kwamanzi okuphuza futhi ekwelapheni indle, amanzi aphethwe yi-Storm namanzi angcolile wezimboni. Izinqubo zokwelashwa ezijwayelekile zifaka ukuneliswa, ukuqina, ukugcwala, imvula, ukuhlungwa kwezinhlayiyana kanye nokubulala amagciwane.
I-Surface Chemistry
Ku-colloidal chemistry, i-floccutional yinqubo lapho izinhlayiya ezinhle zihlanganiswa khona. I-Floc ingabe isintanta phezulu kwe-ketshezi (Opalescent), ihlele phansi koketshezi (i-precipitate) noma ukuhlunga kalula ngaphandle koketshezi. Ukuziphatha kwe-flocculation yenhlabathi colloid kuhlobene kakhulu nekhwalithi yamanzi ahlanzekile. Ukuhlakazwa okuphezulu kwenhlabathi akubangela ukulungiswa ngokuqondile kwamanzi okuzungezile, kodwa futhi kubangela ubuthongo ngenxa yokutholwa kwezakhi zomzimba emifuleni, emachibini nasendaweni engaphansi komhlaba.
I-chemistry engokomzimba
Nge-Emulsions, i-Floccation ichaza okuhlangene kwamaconsi ahlakazekile ahlakazekile ukuze amaconsi ngamunye angalahli izakhiwo. Ngakho-ke, i-floccution isinyathelo sokuqala (i-Droplet Coalescence kanye nokwahlukaniswa kwesigaba sokugcina) okuholela ekuqhubekeni nasekugugeni kwe-emulsion. Ama-Flocculatant asetshenziswa ekuzuzeni izimbiwa, kepha futhi angasetshenziswa ekwakhiweni kwezindawo ezibonakalayo zokudla kanye nezidakamizwa.
Deflocculite
Ukuhlanekezela emuva kungukuphambene ngqo kokuFloccation futhi kwesinye isikhathi kubizwa ngokuthi yi-gelling. I-Sodium Silication (NA2SIO3) isibonelo esijwayelekile. Izinhlayiya ze-colloidal zivame ukuhlakazeka ezindaweni eziphakeme ze-PH, ngaphandle kwamandla we-ionic aphansi wesisombululo kanye nokubusa kwamanani wensimbi eMonoval. Izengezo ezivimbela i-colloid kusuka ekwakheni i-flocculent ibizwa nge-antiflocculants. Ukuze ukwaziswa kabusha ngokusebenzisa izithiyo ze-electrostatic, umphumela we-flocculant reverse ungalinganiswa ngekhono le-zeta. Ngokusho kwesichazamazwi se-Encyclopedia sama-polymers, i-antifloccution "iyisimo noma isimo sokuhlakazwa kwesiqu esiqinile kuketshezi lapho kuhlala khona izinhlayiyana eziqinile futhi zingabanjwa nomakhelwane (njenge-emulsifier). Ukusondela okungekho emthethweni kunamanani we-zero noma aphansi kakhulu ".
Ukubuyela emuva kungaba yinkinga ezitshalweni zokwelashwa kwendle ngoba kuvame ukuholela ekuxazululeni izinkinga nokuwohloka kwekhwalithi ye-effluent.
Isikhathi sePosi: Mar-03-2023