Flocculation - Aluminium sulfate vs Poly aluminium chloride

Flocculation ninzira itangirwamo uduce duto twahagaritswe tuboneka muguhagarika neza mumazi. Ibi bigerwaho hiyongereyeho coagulant yuzuye neza. Amashanyarazi meza muri coagulant atesha agaciro amafaranga mabi aboneka mumazi (nukuyihungabanya). Iyo ibice bimaze guhungabana cyangwa kutabogama, inzira ya flocculation ibaho. Ibice bidahungabana bihurira mubice binini kandi binini kugeza igihe biremereye bihagije kugirango bikemurwe nubutaka cyangwa binini bihagije kugirango umutego uhumeka kandi ureremba.

Uyu munsi tuzarebera hafi kumiterere ya flocculation yibintu bibiri bisanzwe: poly aluminium chloride na sulfate ya aluminium.

Aluminium Sulfate: Aluminium Sulfate ni acide muri kamere. Ihame ryakazi rya aluminium sulfate niyi ikurikira: sulfate ya aluminium itanga hydroxide ya aluminium, Al (0H) 3. Hydroxide ya aluminium ifite pH ntarengwa, hejuru yayo ntishobora gukora hydrolysis neza cyangwa, hydroxide ya hydroxide ya hydroxide yatuye vuba kuri pH ndende (ni ukuvuga pH iri hejuru ya 8.5), bityo pH ikora igomba kugenzurwa neza kugirango ikomeze kuba hagati ya 5.8-8.5. . alkalineite mumazi igomba kuba ihagije mugihe cya flokculasiyo kugirango hydroxide idashobora gushonga iba yuzuye kandi iguye. Kuraho ibara nibikoresho bya colloidal ukoresheje guhuza adsorption na hydrolysis kuri / muri hydroxide yicyuma. Kubwibyo, idirishya ryimikorere ya pH ya aluminium sulfate ni 5.8-8.5, kubwibyo rero ni ngombwa cyane kugenzura neza pH mugihe cyose ukoresheje sulfate ya aluminium.

Choride ya polyaluminium(PAC) ni umwe mu miti itunganya amazi ikoreshwa muri iki gihe. Ikoreshwa cyane mumazi yo kunywa no gutunganya amazi mabi kubera imikorere yayo ya coagulation hamwe nubunini bwagutse bwa pH nubushyuhe ugereranije nindi miti itunganya amazi. PAC iraboneka mubyiciro byinshi bitandukanye hamwe na alumina yibanze kuva kuri 28% kugeza 30%. Kwibanda kwa Alumina ntabwo aribyo byonyine bisuzumwa muguhitamo icyiciro cya PAC cyo gukoresha.

PAC irashobora gufatwa nka coagulant mbere ya hydrolysis. Imbere ya hydrolysis ya aluminiyumu ifite ubwinshi bwubwinshi bwumuriro, bigatuma PAC itondekanya kurusha alum.kugira ngo ihungabanye imbaraga zikomeye zanduye zahagaritswe mumazi.

PAC ifite ibyiza bikurikira kurenza sulfate ya aluminium

1. Ikora kumurongo wo hasi cyane. Nkuko bisanzwe bigenda, igipimo cya PAC ni kimwe cya gatatu cyumuti ukenewe kuri alum.

2. Irasiga aluminiyumu isigaye mumazi yatunganijwe

3. Itanga umwanda muke

4. Ikora hejuru ya pH yagutse

Hariho ubwoko bwinshi bwa flocculants, kandi iyi ngingo itangiza bibiri gusa. Mugihe uhisemo coagulant, ugomba gusuzuma ubwiza bwamazi urimo kuvura hamwe ningengo yimari yawe. Nizere ko ufite uburambe bwiza bwo gutunganya amazi. Nkumuti utunganya amazi utanga imiti afite uburambe bwimyaka 28. Nishimiye gukemura ibibazo byanyu byose (kubyerekeye imiti itunganya amazi).