Ukwelashwa kwamanzi kuyingxenye ebalulekile yokuvikelwa kwemvelo kanye nempilo yomphakathi, futhi inhloso yakho ukuqinisekisa ikhwalithi yamanzi aphephile kanye nokuhlangabezana nezidingo zezicelo ezihlukahlukene. Phakathi kwezindlela eziningi zokwelashwa kwamanzi,i-polyaluminium chloride(i-PAC) ikhethwa kabanzi ngenxa yezakhiwo zayo ezihlukile kanye nomthelela osebenza kahle wokuhlanganisa.
Umphumela osebenza kahle wokuhlanganisa: I-PAC inokusebenza okuhle kakhulu kokuhlangana futhi ingasusa ngempumelelo ukungcola okufana nezinto eziqinile ezimisiwe, ama-colloid nezinto eziphilayo ezingancibiliki emanzini futhi ithuthukise ikhwalithi yamanzi.
Indlela ye-polyaluminium chloride (PAC) njenge-coagulant ikakhulukazi ihlanganisa ukucindezelwa kongqimba oluphindwe kabili kagesi, ukungathathi hlangothi kweshaji kanye nokucupha inetha. Ukucindezelwa kongqimba lukagesi oluphindwe kabili kusho ukuthi ngemva kokwengeza i-PAC emanzini, ama-ion e-aluminium nama-ion e-chloride akha ungqimba lwe-adsorption ebusweni bezinhlayiya ze-colloidal, ngaleyo ndlela kucindezela ungqimba lukagesi oluphindwe kabili ebusweni bezinhlayiya ze-colloidal, kubangele ukuthi ziphazamise futhi condense; I-adsorption bridging ithi Ama-cations kuma-molecule e-PAC adonselana futhi amashaji angemahle ebusweni bezinhlayiya ze-colloidal, akha isakhiwo “sebhuloho” ukuze sixhume izinhlayiya eziningi ze-colloidal; umphumela wokunetha ungomphumela wokukhanga kanye nokuvala ama-molecule we-PAC kanye nezinhlayiya ze-colloidal, ezihlanganisa izinhlayiya ze-colloidal. Ibanjwe kunethiwekhi yama-molecule e-coagulant.
Ukusetshenziswa kwamanzi kwe-Polyaluminium chloride
Uma kuqhathaniswa ne-inorganic flocculants, ithuthukise kakhulu umphumela wokukhipha umbala wodayi. Indlela yayo yokusebenza ukuthi i-PAC ingaphromotha ama-molecule odayi ukuze akhe ama-flocs amahle ngokuminyanisa noma ngokungathathi hlangothi kwesendlalelo esiphindwe kabili sikagesi.
Lapho i-PAM isetshenziswa ihlanganiswe ne-PAC, ama-anionic organic polymer molecules angasebenzisa umphumela wokuhlanganisa wamaketanga awo amade wemolekyuli ukuze akhe ama-flocs aminyene ngokubambisana kwe-ejenti eqeda amandla. Le nqubo isiza ukuthuthukisa umphumela wokuxazulula futhi yenza ama-ion ensimbi esindayo kube lula ukuwasusa. Ngaphezu kwalokho, inani elikhulu lamaqembu e-amide aqukethwe emaketangeni aseceleni ama-molecule e-anionic polyacrylamide angakha izibopho ze-ionic ne-SON kuma-molecule odayi. Ukwakheka kwalesi sibopho samakhemikhali kunciphisa ukuncibilika kwe-organic flocculant emanzini, ngaleyo ndlela kukhuthaze ukwakheka okusheshayo kanye nemvula yama-flocs. Lo mshini wokubopha ojulile wenza kube nzima kakhulu ukuthi ama-ion ensimbi esindayo abaleke, kuthuthukiswe ukusebenza kahle kanye nomthelela wokwelapha.
Mayelana nokususwa kwe-phosphorus, ukusebenza kahle kwe-polyaluminium chloride akunakunakwa. Uma yengezwe emanzini angcolile aqukethe i-phosphorus, ingadonsa amanzi ukuze ikhiqize ama-ion ensimbi e-aluminiyamu ama-trivalent. Le ion ibophezela kuma-phosphates ancibilikayo emanzini angcolile, iguqule lena yakamuva ibe i-insoluble phosphate precipitates. Le nqubo yokuguqula isusa ngempumelelo i-phosphate ions emanzini angcolile futhi inciphisa umthelela omubi we-phosphorus emizimbeni yamanzi.
Ngaphezu kokusabela okuqondile nge-phosphate, umphumela wokuhlanganisa we-polyaluminium chloride nawo udlala indima ebalulekile enqubweni yokususa i-phosphorus. Ingafinyelela ukukhangisa kanye nokuhlanganisa ngokucindezela isendlalelo sokushaja phezu kwama-ion e-phosphate. Le nqubo ibangela ukuthi ama-phosphates nezinye izinto eziphilayo ezingcolisa amanzi emanzini angcolile zihlangane ngokushesha zibe yizigaxa, zenze ama-flocs okulula ukuzinza.
Okubaluleke nakakhulu, okuqinile okuyimbudumbudu okulengisiwe okukhiqizwe ngemva kokwengeza i-ejenti yokukhipha i-phosphorus, i-PAC isebenzisa indlela yayo eyingqayizivele yokubamba inetha kanye nomthelela oqinile wokunciphisa ukushaja ukuze kuthuthukiswe ukukhula kancane kancane kanye nokujiya kwalezi zinto eziqinile ezimisiwe, bese ziyajiya, zihlanganise, futhi zigeleze phakathi. izinhlayiya ezinkulu. Lezi zinhlayiya zibe sezihlala ongqimbeni olungezansi, futhi ngokuhlukana koketshezi oluqinile, uketshezi olunamandla kakhulu lungakhishwa, ngaleyo ndlela kuzuzwe ukukhishwa kwe-phosphorus ngokuphumelelayo. Lolu chungechunge lwezinqubo eziyinkimbinkimbi zomzimba nezamakhemikhali luqinisekisa ukusebenza kahle nokuzinza kokulungiswa kwamanzi angcolile, okuhlinzeka ngesiqinisekiso esiqinile sokuvikelwa kwemvelo kanye nokusetshenziswa kabusha kwemithombo yamanzi.
Isikhathi sokuthumela: Jul-10-2024