Poly Aluminum Chloride inobvisa sei tsvina mumvura?

Poly Aluminum Chloride(PAC) ikemikari inoshandiswa zvakanyanya mukurapa mvura nemvura yakasviba nekuda kwekushanda kwayo mukubvisa tsvina. Maitiro ayo anosanganisira matanho akati wandei anobatsira mukuchenesa mvura.

Chekutanga, PAC inoshanda semushonga unosunga mvura. Kusunga mvura inzira yekukanganisa zvidimbu zvecolloidal uye kumiswa kwemvura, zvichiita kuti zviungane pamwe chete zvoita zvidimbu zvikuru zvinonzi flocs. PAC inoita izvi nekuderedza machaji asina kunaka pamusoro pezvikamu zvecolloidal, izvo zvinoita kuti zviungane pamwe chete zvoita flocs kuburikidza nenzira inonzi charge neutralization. Aya maflocs anobva abviswa nyore nyore kuburikidza nenzira dzinotevera dzekusefa.

Kuumbwa kweflocs kwakakosha pakubvisa tsvina dzakasiyana-siyana mumvura. PAC inobvisa zvinobudirira zvinhu zvakasungirirwa, zvakaita sezvimedu zvevhu, silt, uye organic matter, nekuzviisa muflocs. Izvi zvinhu zvakasungirirwa zvinogona kukonzera kusvibiswa mumvura, zvichiita kuti iite seyakakora kana kuti isina kuchena. Nekuunganidza zvidimbu izvi muflocs hombe, PAC inobatsira kubviswa kwazvo panguva yekusefa uye kusvibiswa, zvichiita kuti mvura ive yakajeka.

Uyezve, PAC inobatsira kubvisa zvinhu zvakanyungudutswa zve organic nezvinhu zvinokonzera mavara mumvura. Zvinhu zvakanyungudutswa zve organic, zvakaita se humic ne fulvic acids, zvinogona kupa mvura kunaka uye kunhuhwirira kusingafadzi uye zvinogona kuita nemishonga inouraya utachiona kuti zvigadzire zvimwe zvinhu zvinokuvadza zvinouraya utachiona. PAC inobatsira kuomesa nekunyungudutsa organic compounds idzi pamusoro pema flocs akagadzirwa, nokudaro zvichideredza kuwanda kwazvo mumvura yakarapwa.

Pamusoro pezvinhu zvipenyu, PAC inogonawo kubvisa zvinobudirira tsvina dzakasiyana-siyana dzisingasanganisirwe mumvura. Zvinosvibisa izvi zvinogona kusanganisira simbi dzinorema, dzakadai searsenic, lead, uye chromium, pamwe nemamwe maanion akadai sephosphate nefluoride. PAC inoshanda nekugadzira metal hydroxide precipitates isinganyunguduke kana nekukwevera maion esimbi pamusoro payo, nokudaro ichideredza huwandu hwadzo mumvura yakabatwa kusvika padanho rinosvika padanho repamutemo.

Uyezve, PAC inoratidza zvakanakira kupfuura mamwe macoagulants anowanzo shandiswa mukuchenesa mvura, akadai sealuminium sulfate (alum). Kusiyana nealum, PAC haichinji zvakanyanya pH yemvura panguva yekuomesesa, izvo zvinobatsira kuderedza kudiwa kwemakemikari ekugadzirisa pH uye zvinoderedza mutengo wese wekurapa. Pamusoro pezvo, PAC inogadzira madhaka mashoma zvichienzaniswa nealum, zvichikonzera kudzikira kwemitengo yekurasa marara uye kukanganisa nharaunda.

Kazhinji, Poly Aluminium Chloride (PAC) imushonga unoshanda zvikuru unobvisa tsvina yakawanda mumvura. Kugona kwayo kukurudzira kuvharika, kupwanyika, kupwanyika, uye kunyungudutsa mvura kunoita kuti ive chinhu chakakosha mumasisitimu ekurapa mvura pasi rese. Nekubatsira kubviswa kwemvura yakasimba, zvinhu zvakanyungudutswa, zvinhu zvinokonzera mavara, uye zvinhu zvisina kuchena, PAC inobatsira kugadzira mvura yakachena, yakajeka, uye yakachengeteka inogutsa zvinodiwa nemutemo. Kushanda kwayo zvakanaka, nyore kushandisa, uye kusakanganisa pH yemvura kunoita kuti ive sarudzo inofarirwa nefekitori dzekurapa mvura dzinotsvaga mhinduro dzakavimbika uye dzinogara kwenguva refu dzekuchenesa mvura.