Flocculation - Aluminium sulfate vs Poly aluminum chloride

Guhuza amazi ni inzira ituma uduce duto duto dufite ingufu nkeya tuba mu mazi ahagaze neza tugahungabanywa. Ibi bigerwaho hakoreshejwe uburyo bwo kongeramo umwuka uhumeka neza. Umuvuduko mwiza uri muri uwo mwuka uhumeka ugabanya ingufu nkeya ziba mu mazi (ni ukuvuga utuma adahumeka neza). Iyo uduce duto duhumeka cyangwa tugahungabanywa, inzira yo guhuza amazi iba. Uduce duto duhumeka twivanga mu duce duto n'utundi kugeza igihe turemereye bihagije kugira ngo dushobore kwimuka binyuze mu gushonga cyangwa tunini bihagije kugira ngo dufate utubumbe tw'umwuka hanyuma tureremba.

Uyu munsi turareba neza imiterere y’udusimba tubiri dusanzwe dukoresha mu gukurura: poly aluminium chloride na aluminium sulfate.

Sulfate ya aluminiyumu: Sulfate ya aluminiyumu ifite aside mu miterere yayo. Ihame ry'imikorere ya sulfate ya aluminiyumu ni iri rikurikira: sulfate ya aluminiyumu ikora hydroxide ya aluminiyumu, Al (0H) 3. Hydroxide za aluminiyumu zifite pH nkeya, hejuru yazo ntabwo zigomba gushonga neza cyangwa hydroxide za aluminiyumu za hydrolyzed zigashira vuba kuri pH iri hejuru (ni ukuvuga pH iri hejuru ya 8.5), bityo pH ikora igomba kugenzurwa neza kugira ngo igume ku rugero rwa 5.8-8.5. Alkalinity mu mazi igomba kuba ihagije mu gihe cyo gushonga kugira ngo hydroxide idashonga ikore neza kandi ihume. Ikuraho ibara n'ibikoresho bya colloidal binyuze mu guhuza uburyo bwo kunyuzwamo no gushonga kuri hydroxide z'icyuma. Kubwibyo, pH ikoreshwa ya sulfate ya aluminiyumu ni 5.8-8.5 gusa, bityo ni ngombwa cyane kugenzura pH neza mu gihe cyose cyo gukoresha sulfate ya aluminiyumu.

Polyaluminum chloride(PAC) ni imwe mu miti ikoreshwa mu gutunganya amazi neza cyane muri iki gihe. Ikoreshwa cyane mu gusukura amazi no mu mazi yanduye kubera ubushobozi bwayo bwo gufungana cyane ndetse n'uburyo bwinshi bwo gukoresha pH n'ubushyuhe ugereranije n'indi miti ikoreshwa mu gusukura amazi. PAC iboneka mu byiciro bitandukanye hamwe n'ingano ya alumina iri hagati ya 28% na 30%. Igipimo cya alumina si cyo cyonyine umuntu agomba kwitondera mu guhitamo igipimo cya PAC cyo gukoresha.

PAC ishobora gufatwa nk'ikintu gitera umwuka wa hydrolysis. Amatsinda ya aluminiyumu ya hydrolysis afite ubwinshi bwinshi bw'amashanyarazi, bigatuma PAC iba cationic kurusha alum. Ibi bigatuma irushaho kuba igikoresho gitera umwuka wa hydrolysis mu mazi.

PAC ifite ibyiza bikurikira ugereranyije na sulfate ya aluminiyumu

1. Ikora ku gipimo gito cyane. Nk’uko bisanzwe, igipimo cya PAC ni kimwe cya gatatu cy’igipimo gisabwa kuri alum.

2. Bisiga aluminiyumu nkeya mu mazi yavuwe

3. Bitanga umwanda muke

4. Ikora ku rugero rwagutse rwa pH

Hari ubwoko bwinshi bwa flocculants, kandi iyi nkuru iragaragaza ebyiri muri zo gusa. Mu guhitamo coagulant, ugomba gutekereza ku bwiza bw'amazi urimo gutunganya ndetse n'ingengo y'imari yawe bwite. Ndizera ko ufite uburambe bwiza mu gutunganya amazi. Nk'umucuruzi w'imiti itunganya amazi ufite uburambe bw'imyaka 28. Nishimiye gukemura ibibazo byawe byose (ku bijyanye n'imiti itunganya amazi).