Ngokuthuthuka okusheshayo kwezimboni, ukukhishwa kwamanzi amdaka ezimbonini kuye kwanda unyaka nonyaka, okubangela usongo olukhulu emvelweni. Ukuze sivikele imvelo, kumele sithathe izinyathelo ezisebenzayo zokuphatha la manzi amdaka. Njenge-i-coagulant ephilayo, i-PolyDADMAC kancane kancane iba yisisombululo esithandwayo sokwelapha amanzi angcolile ezimbonini.
Kungani kufanele kuphathwe amanzi angcolile ezimbonini?
Izingozi zamanzi angcolile asezimbonini azinakwa. Amanzi angcolile aqukethe inani elikhulu lama-ion ensimbi esindayo, amakhemikhali ayingozi, uwoyela, njll. Lezi zinto ziyingozi kakhulu ezimpilweni zasemanzini nakubantu. Ukukhishwa kwamanzi angcolile isikhathi eside kungaphathwanga kuzoholela ekungcolisweni kwamanzi, ekulimaleni kwemvelo, kanye nasezifweni zabantu.
Njengoba ukukhiqizwa kwezimboni kuqhubeka nokwanda, inani elikhulu lamanzi angcolile likhishwa ngqo emvelweni ngaphandle kokwelashwa, okulimaza kakhulu ibhalansi yemvelo futhi kusongela impilo yabantu. Ngakho-ke, kumelwe sithathe izinyathelo zokuphatha amanzi angcolile ezimbonini ukuze sinciphise umthelela wawo omubi emvelweni.
Kungani ukhethaI-PolyDADMACukwelapha amanzi angcolile ezimbonini?
Ukuze kubhekanwe nezingozi zamanzi amdaka asezimbonini, izindlela zokwelapha ezisetshenziswa kakhulu zifaka phakathi ukukala i-alum noma i-PAC. Kodwa-ke, lezi zindlela zendabuko zivame ukuba nezinkinga ezifana nomthamo omkhulu wodaka, ukusebenza okuyinkimbinkimbi, kanye nezindleko eziphezulu. Ngakho-ke, sidinga ukuthola indlela yokwelapha esebenza kahle, engabizi, futhi enobungani nemvelo. Njenge-organic coagulant, i-PolyDADMAC inezakhiwo ezinhle kakhulu zokugoba kanye nokujiya futhi ingasusa ngokushesha nangokuphumelelayo izinto eziqinile ezimisiwe (ngokuvamile eziqukethe ama-ion ensimbi esindayo namakhemikhali ayingozi) emanzini amdaka. Uma kuqhathaniswa nezindlela zokucubungula zendabuko, i-PolyDADMAC inezinzuzo zokusebenza okulula, ukusebenza kahle kokucubungula okuphezulu, umthamo ophansi wodaka, kanye nezindleko eziphansi. I-PolyDADMAC isetshenziswa futhi njenge-ejenti yokususa amanzi odaka ukuze kuncishiswe okuqukethwe kwamanzi kodaka okubangelwa ezinye izinqubo zezimboni.
I-PolyDADMAC iphatha kanjani amanzi angcolile ezimbonini?
Okokuqala, engeza isixazululo esixutshwe ne-PolyDADMAC emanzini amdaka ngesilinganiso esithile bese usixuba kahle ngokuhlanganisa. Ngaphansi kwesenzo se-coagulant, izinto eziqinile ezilengisiwe emanzini amdaka zizohlangana ngokushesha zakhe ama-floc amakhulu. Ngemuva kwalokho, ngezinyathelo ezilandelayo zokwelapha ezifana nokuthungwa noma ukuhlunga, i-floc ihlukaniswa namanzi amdaka ukuze kufezwe injongo yokuhlanza amanzi amdaka.
Uma usebenzisa i-PolyDADMAC ukwelapha amanzi angcolile asezimbonini, udinga ukunaka izinto ezilandelayo. Okokuqala, kufanele ukhethe umhlinzeki onekhwalithi ethembekile ukuqinisekisa ukuthi i-coagulant ethengiwe isezingeni elifanele. Okwesibili, ngokwemvelo kanye nokuhlushwa kwamanzi angcolile, umthamo we-coagulant kufanele ukhethwe ngokufanele ukuze kugwenywe ukumunca ngokweqile noma ukwelashwa okunganele okuholela emiphumeleni yokwelashwa engemihle. Ngesikhathi esifanayo, ikhwalithi yamanzi angcolile aphathwe kufanele ihlolwe njalo ukuqinisekisa ukuthi amazinga okukhipha amanzi ayahlangatshezwa. Ngaphezu kwalokho, opharetha kufanele bathole ukuqeqeshwa kochwepheshe futhi bajwayelane nezici nokusetshenziswa kwama-coagulant kanye nezinyathelo zokuqapha ukuqinisekisa ukuphepha nokuzinza kwenqubo yokwelapha.
Ngamafuphi, i-PolyDADMAC, njenge-coagulant ephilayo esebenza kahle futhi engabizi, inezinzuzo ezibalulekile ekwelapheni amanzi angcolile asezimbonini. Ngokusebenzisa okunengqondo kwe-PolyDADMAC, singanciphisa ngempumelelo umonakalo wamanzi angcolile asezimbonini emvelweni futhi sivikele ibhalansi yemvelo kanye nempilo yabantu. Esikhathini esizayo, ngokuthuthukiswa okuqhubekayo kokuqwashisa ngemvelo kanye nentuthuko yezobuchwepheshe, i-PolyDADMAC izodlala indima ebaluleke kakhulu emkhakheni wokwelashwa kwamanzi angcolile asezimbonini.
Isikhathi sokuthunyelwe: Ephreli-17-2024