Kurapa mvura yakasviba: sarudzo pakati pepolyaluminum chloride nealuminium sulfate

Mukurapa mvura yakasviba, polyaluminum chloride (PAC) nealuminium sulfate zvinoshandiswa zvakanyanya semacoagulants. Kune musiyano muchimiro chemakemikari emishonga iyi miviri, zvichikonzera kushanda kwayo uye mashandisirwo ayo. Mumakore achangopfuura, PAC yave ichifarirwa zvishoma nezvishoma nekuda kwekushanda kwayo kwepamusoro uye nekukurumidza kwayo pakurapa. Muchinyorwa chino, tichakurukura musiyano uripo pakati pePAC nealuminium sulfate mukurapa mvura yakasviba kuti tikubatsire kuita sarudzo ine ruzivo rwakakura.

Kutanga, ngatidzidzei nezve polyaluminum chloride (PAC). Semusanganiswa wepolymer wezvinhu zvisina kugadzirwa, PAC ine kunyungudika kwakanaka uye inogona kuumba maflocs nekukurumidza. Inotamba basa rekuonda kuburikidza nemagetsi neutralization uye net trapping, uye inoshandiswa pamwe chete ne flocculant PAM kubvisa tsvina mumvura yakasviba zvinobudirira. Kana ichienzaniswa nealuminium sulfate, PAC ine kugona kwakasimba kwekugadzirisa uye kunaka kwemvura mushure mekucheneswa. Panguva imwecheteyo, mutengo wekuchenesa mvura wePAC wakaderera ne15%-30% pane aluminium sulfate. Panyaya yekushandisa alkalinity mumvura, PAC ine kushandiswa kwakaderera uye inogona kuderedza kana kudzima jekiseni realkaline agent.

Chinotevera ialuminium sulfate. Sechinosanganisa mvura, aluminum sulfate inonyungudutsa nekusunga tsvina kuburikidza nealuminium hydroxide colloids inogadzirwa nehydrolysis. Mwero wayo wekunyunguduka wakaderera, asi yakakodzera kurapwa kwemvura yakasviba ine pH ye6.0-7.5. Kana ichienzaniswa nePAC, aluminum sulfate haina simba rekurapa uye kunaka kwemvura yakacheneswa, uye mutengo wekuchenesa mvura wakakwira.

Panyaya yehukuru hwekushanda, PAC nealuminium sulfate zvine mashandisirwo akasiyana zvishoma; PAC inowanzo nyore kubata uye inogadzira maflocs nekukurumidza, izvo zvinoita kuti kurapwa kushande zvakanaka. Aluminum sulfate, kune rumwe rutivi, inononoka hydrolyze uye inogona kutora nguva yakareba kuti iome.

Aruminiyamu sulfatezvinoderedza pH uye alkanility yemvura yakarapwa, saka soda kana lime zvinodiwa kuti zvisashande. Mushonga wePAC haudi kupindirana uye hapana chinodiwa chechinhu chinodzivisa kupindirana (soda kana lime).

Panyaya yekuchengetera, PAC nealuminium sulfate zvinowanzo gara zvakanaka uye zviri nyore kuchengeta nekutakura. Kunyange zvazvo PAC inofanira kuvharwa kudzivirira kunyungudika kwehunyoro uye kusvibiswa nezuva.

Pamusoro pezvo, kubva pakuona kwekuora, aluminium sulfate iri nyore kushandisa asi ine ngura yakawanda. Pakusarudza macoagulants, kukanganisa kunogona kuitika pamichina yekurapa kunofanira kufungwa zvizere.

Muchidimbu,Polyaluminum Chloride(PAC) nealuminium sulfate zvine zvazvakanakira nezvazvakaipira mukugadzirisa tsvina. Kazhinji, PAC iri kuva coagulant inonyanya kushandiswa nekuda kwekushanda kwayo kwepamusoro, kugona kwayo kurapa mvura yakasviba nekukurumidza uye kugona kwayo kuchinjika nepH yakawanda. Zvisinei, aluminium sulfate ichiri nezvakanaka zvisingatsivike pasi pemamwe mamiriro ezvinhu. Saka, pakusarudza coagulant, zvinhu zvakaita sekudiwa chaiko, mhedzisiro yekurapa uye mutengo zvinofanirwa kufungwa nezvazvo. Kusarudza coagulant chaiyo kuchabatsira kuvandudza kushanda kwekurapa mvura yakasviba.