Ukuze kukhishwe noma kusetshenziswe kabusha indle ngemva kokwelashwa, kudingeka kusetshenziswe amakhemikhali ahlukahlukene enkambisweni yokwelashwa kwendle. Namuhla,Abahlinzeki be-PAM (Polyacrylamide)ngizokutshela ngama-flocculant:
I-Flocculant: Ngezinye izikhathi ibizwa nangokuthi i-coagulant, ingasetshenziswa njengendlela yokuqinisa ukuhlukaniswa kwe-solid-liquid, futhi ingasetshenziswa ethangini lokuqala lokusetha, ethangini lesibili lokusetha, ethangini lokuflotha, ekwelashweni kwesithathu noma ekwelashweni okuthuthukisiwe kanye nezinye izixhumanisi zenqubo.
Ama-flocculant asetshenziswa njengendlela yokuqinisa ukuhlukaniswa koketshezi oluqinile emkhakheni wokwelashwa kwendle. Angasetshenziswa ukuqinisa ukuthuthwa kwendle okuyinhloko, ukwelashwa kokuntanta kanye nokuthuthwa kwendle okwesibili ngemva kwenqubo yokusetshenziswa kodaka, futhi angasetshenziswa futhi ekuphathweni kwendle okwesithathu noma ekuphathweni kwendle okuthuthukisiwe. Uma esetshenziselwa ukulungisa ngaphambi kokuphelelwa amanzi kodaka oluningi, ama-flocculant kanye nama-coagulant aba ama-sludge conditioner noma ama-dehydrating agents.
Uma usebenzisa ama-flocculant endabuko, indlela yokwengeza izinsiza ze-coagulant ingasetshenziswa ukuthuthukisa umphumela we-flocculation. Isibonelo, ukusebenzisa i-activated silicic acid njenge-coagulant aid yama-flocculant angaphili njenge-ferrous sulfate kanye ne-aluminium sulfate bese uzifaka ngokulandelana kungafeza i-flocculation enhle. Ngakho-ke, ngokwemibandela evamile, i-inorganic polymer flocculant IPF empeleni ilungiswa ngokuhlanganisa i-coagulant aid kanye ne-flocculant bese ingezwa ndawonye ukuze kube lula ukusebenza komsebenzisi.
Ukwelashwa kokuqina kolwelo kuvame ukubekwa phambi kwesikhungo sokuhlukanisa ulwelo oluqinile, futhi kuhlanganiswe nesikhungo sokuhlukanisa, kungasusa ngempumelelo izinto eziqinile ezimisiwe kanye nezinto ze-colloidal ezinobukhulu bezinhlayiya obungu-1nm kuya ku-100μm emanzini angavuthiwe, kunciphise ukugcwala kokungcola kanye ne-CODCr, futhi kungasetshenziswa ekwelapheni izinqubo zokwelashwa kwendle. Ukwelashwa, ukwelashwa okuthuthukisiwe, kungasetshenziswa futhi ekwelapheni ukungcola okusele. Ukwelashwa kokuqina kolwelo kungasusa ngempumelelo ama-microorganisms kanye namagciwane abangela izifo emanzini, futhi kususe uwoyela ohlanganisiwe, i-chroma, ama-ion ensimbi esindayo kanye nezinye izinto ezingcolisayo emanzini angcolile. Izinga lokususwa kwe-phosphorus equkethwe emanzini angcolile lingafinyelela ku-90% lapho ukuqina kolwelo kusetshenziswa ukwelapha i-phosphorus. ~95%, yindlela eshibhile futhi ephumelela kakhulu yokususa i-phosphorus.
Enkambisweni yokuhlanza indle, kuzosetshenziswa ezinye izinto ezisetshenziswayo. Namuhla,Umkhiqizi we-PAMwethule eyodwa kuphela yazo. Useyaqonda? Naka iYuncang bese uphendula ulwazi olwengeziwe lokuhlanza indle!
Isikhathi sokuthunyelwe: Disemba-01-2022