Umgomo nokusetshenziswa kwe-polyaluminium chloride (PAC) njenge-ejenti yokususa i-fluoride esebenza kahle kakhulu

1. Isimisokanye nendlela yamakhemikhali yokususwa kwe-fluoride

I-Polyaluminium chloride(i-PAC) iyinhlanganisela ye-polymer ye-inorganic, futhi ukukhishwa kwayo kwe-fluoride kutholakala ikakhulukazi ngalezi zindlela ezimbili ezilandelayo:

I-Chemisorption: I-PAC incibilike emanzini ikhiphe i-aluminium ion (Al³), futhi ihlanganiswe ne-fluoride ion (F) ukuze kwakheke i-hydrofluoric acid (HF) emaphakathi, bese yenza imvula engancibiliki i-aluminium fluoride (AlF ₃).

Umthelela we-co-precipitation: i-aluminium hydroxide colloid ekhiqizwe i-PAC hydrolysis imboza i-ion ye-fluorine yamahhala ngokusebenzisa i-adsorption ephezulu kanye nokuthwebula kwe-mesh, futhi ekugcineni iyisuse ngokuhlukana koketshezi oluqinile.

2. Isiceloizimo kanye nemiphumela

GroundUkuhlanzwa kwamanzi: Ezindaweni eziphakeme ze-fluoride (i-fluoride concentration> 1.5 mg/L), i-PAC inganciphisa okuqukethwe kwe-fluoride kufinyelele ezingeni likazwelonke lamanzi okuphuza (

Ukuhlanza amanzi angcolile ezimbonini: afanele amanzi angcolile aqukethe i-fluorine (njenge-semiconductor, imboni yokufaka ingilazi), angahlanganiswa nezinye izinto ezikhipha i-fluoride (njengosawoti we-calcium) ukuze kuthuthukiswe ukusebenza kahle.

Uhlelo lokuphakelwa kwamanzi kamasipala: njengesixhumanisi sokwelapha ngaphambi kwesikhathi noma esijulile, ukuze kuqinisekiswe ukuphepha kwamanzi okuphuza, ikakhulukazi ebusika obusenyakatho, izinga lokushisa lamanzi kufanele lilawulwe ngu> 20℃ ukuze kugcinwe ukusebenza kabusha.

3. umnyomboinzuzo

Ukusebenza kahle okuphezulu: Uma kuqhathaniswa nosawoti we-aluminium wendabuko (ofana ne-aluminium sulfate), i-PAC inomthamo ophezulu wokushaja kanye nesivinini sokugeleza okusheshayo, futhi ukusebenza kahle kokukhipha i-fluorine kukhuphuka ngo-30% ngaphansi kwesamba esifanayo sokwengezwa.

Umnotho: izindleko zokwelashwa zingaphansi kuka-40% kune-alumina ecushiwe, i-osmosis ehlehlayo nobunye ubuchwepheshe, futhi akukho mishini eyinkimbinkimbi edingekayo.

Ukuvumelana nezimo okubanzi: i-pH Uhlu olubanzi lokusetshenziswa (5.0-9.0), lungasusa ngokuhambisanayo i-turbidity, izinsimbi ezisindayo nokunye ukungcola.

4. Sebenzisaamaphuzu abalulekile futhi usebenzise isiqondiso sokuthuthukisa

Engeza ukulawula: kuyatuswa ukunquma isilinganiso esifanele sokudla (imvamisa i-11-13kg / amathani ayizinkulungwane zamanzi) ngokuhlolwa kwebhika, futhi ukusebenzisa ngokweqile kungase kuholele ekuseleni kwe-aluminium ngokweqile.

Ukuthuthukiswa kwezimo zokusabela: inani le-pH lilungile ku-6.5-7.6, futhi izinga lokushisa lingaphansi kuka-20℃ lapho izinga lokushisa lenyuswa.

Ukuthuthukiswa kwenqubo eyinhlanganisela: i-CaF ₂ -AlF ₃ isistimu yemvula ephindwe kabili ingakhiwa uma ihlanganiswa nosawoti we-calcium (ofana nomcako), futhi izinga lokukhipha i-fluoride lingafinyelela ngaphezu kwama-95%.

5. Ezemveloukuvikelwa kanye nenani lezomnotho

Njengesisetshenziswa esibalulekile sokuvikela imvelo esithuthukisiwe esikhathini soHlelo Lweminyaka Emihlanu, i-PAC inciphisa ingozi ye-fluorosis futhi ikhuthaze ukuthuthukiswa kwemboni yokuhlanza amanzi ekuqondeni kwezindleko eziphansi kanye nokusetshenziswa kwamandla okuphansi. Ukukhiqizwa kwayo ngezinga elikhulu (umkhiqizo wasekhaya waminyaka yonke wamathani angaphezu kuka-180,000) kanye nokuthuthukiswa kobuchwepheshe (okufana nenqubo ye-aluminium hydroxide yempahla eluhlaza) kuqhubekisela phambili ukuhlanganisa isikhundla esivelele emakethe.

Ngokusebenzisa izindlela eziningi zokwenza izinto nokusetshenziswa okubanzi, i-polyaluminium chloride isibe esinye sezixazululo ezonga kakhulu nezisebenza kahle kakhulu zokususa i-fluoride njengamanje. Ngokusetshenziswa kwe-nano-modification nobunye ubuchwepheshe esikhathini esizayo, ukusebenza kwayo kulindeleke ukuthi kuzuze impumelelo enkulu.