PolyDADMAC, onye aha ya n'uju bụ polydimethyldiallylammonium chloride, bụ cationic polima na-agbaze mmiri nke a na-ejikarị eme ihe n'ubi ọgwụgwọ mmiri. N'ihi njupụta ụgwọ cationic pụrụ iche na oke mmiri solubility, PolyDADMAC bụ coagulant na-arụ ọrụ nke ọma nke nwere ike wepu turbidity, agba na adịghị ọcha ndị ọzọ na mmiri. Otú ọ dị, na ngwa bara uru, a na-ejikarị ya eme ihe dị ka aflocculantna ngwakọta na ndị ọzọ coagulant na-emeso nsị ụlọ ọrụ.
Njirimara na usoro omume nke PolyDADMAC
PolyDADMAC na-agbasa ngwa ngwa ma na-achịkọta ụmụ irighiri ihe colloidal na-adịghị mma yana kwụsịtụrụ n'ime mmiri n'ihi nnukwu ụgwọ cationic ya. Usoro ya na-adabere na mmasị electrostatic, nke na-eme ka ụmụ irighiri ihe ndị a na-agbakọta n'ime nnukwu ihe, ka e wee wepụ ha nke ọma n'oge ọdịda mmiri ma ọ bụ usoro nhazi.
Usoro flocculation nke PolyDADMAC
Flucculation bụ otu n'ime usoro nke usoro coagulation. Ọ na-ezo aka na usoro nke
"obere okooko osisi alum" nke etolite n'oge usoro coagulation na-etolite flocs nwere oke irighiri ihe site na mgbasa ozi, neutralization eletriki, ijikọ na net-capture.
N'ime ụlọ ọrụ ọgwụgwọ mmiri, a na-ekewa adsorption na neutralization eletrik dị ka coagulation, ebe a na-ekewa njigide na ụgbụ dị ka flocculation. A na-akpọ kemịkalụ kwekọrọ na coagulants na flocculants n'otu n'otu.
A na-ekwenyekarị na PolyDADMAC nwere usoro ọrụ atọ: mgbasa ozi, neutralization eletriki na nchikota. Abụọ ndị mbụ bụ ndị bụ isi. Ọ bụ ya mere e ji ekewa PolyDADMAC dị ka coagulant. Otú ọ dị, ọtụtụ ndị mmadụ na-ewere coagulation na flocculation dị ka otu usoro, ya mere PolyDADMAC na-akpọkwa flocculant.
N'ime usoro ọgwụgwọ mmiri, a na-ejikarị PolyDADMAC eme ihe dị ka flocculant iji melite ogo mmiri. Kpọmkwem, otu cationic quaternary ammonium nnu nke PolyDADMAC nwere ike iwepụta mmachi electrostatic na ihe ndị a kwụsịtụrụ anionic ma ọ bụ ụmụ irighiri ihe colloidal n'ime mmiri, na-ebute neutralization, na-akpụ flocs nke nnukwu ahụ ma dozie ha. A na-enyocha flocs ndị a n'oge usoro sedimentation ma ọ bụ nzacha na-esote iji mee ka ịdị ọcha nke mmiri dị ọcha.
Uru nke PolyDADMAC
E jiri ya tụnyere flocculants ọdịnala (alum, PAC, wdg), PolyDADMAC nwere uru ndị a dị ịrịba ama:
Ọ dị mma: PolyDADMAC nwere ike wepụ ihe adịghị ọcha na mmiri ngwa ngwa ma melite ogo mmiri.
Ọ dị mfe ịrụ ọrụ: Ojiji ya dị mfe, tinye ya n'okpuru ọnọdụ kwesịrị ekwesị.
Nkwado: PolyDADMAC nwere ezigbo nkwụsi ike yana ọ naghị agbaji ngwa ngwa dị ka polyacrylamide.
Mmetụta flocculation siri ike: Otu nnu cationic quaternary ammonium na-enye PDMDAAC ike flocculation siri ike, si otú ahụ na-emeso àgwà mmiri dị iche iche nke ọma;
Ezi nnu eguzogide, acid na alkali eguzogide: PDMDAAC adabara mgbagwoju mmiri àgwà ọnọdụ, na ọ ka nwere ike flocculation arụmọrụ n'okpuru elu salinity, acidic ma ọ bụ alkaline ọnọdụ;
Ọnụ ego dị ala: PolyDADMAC nwere arụmọrụ flocculation dị elu yana obere usoro onunu ogwu, nke nwere ike ibelata ụgwọ ọgwụgwọ mmiri.
Sludge dị ala: PolyDADMAC na-emepụta sludge dị ntakịrị karịa coagulant inorganic na flocculants ma chekwaa ụgwọ ọrụ nhazi.
PolyDADMAC usoro onunu ogwu na akpachapụ anya
Mgbe ị na-eji PolyDADMAC, ekwesịrị ịgbaso usoro ịwa ahụ nke ọma iji hụ na nsonaazụ ọgwụgwọ kacha mma ma zere mmetụta ọ ga-ekwe omume. Ọtụtụ mgbe, mgbe ịgbakwunye flocculants dị ka polyaluminium chloride, a na-agbakwunye PolyDADMAC iji nweta mmetụta coagulation kacha mma. Tụkwasị na nke ahụ, a ga-edozi usoro ọgwụgwọ ahụ nke ọma dịka àgwà mmiri na ọgwụgwọ chọrọ. Enwere ike ikpebi usoro ọgwụgwọ kwesịrị ekwesị site na nyocha ite.
Na mkpokọta,PolyDADMACna-arụ ọrụ dị mkpa n'ọhịa ọgwụgwọ mmiri. Nghọta miri emi nke ihe onwunwe ya na ngwa ya ga-enyere aka iji ngwaahịa a mee ihe n'ụzọ dị irè iji meziwanye àgwà mmiri ma chebe gburugburu ebe obibi.
Oge nzipu: Nov-14-2024