Kugadziriswa kwemvura yakasviba: sarudzo pakati pe polyaluminium chloride uye aluminium sulfate

Mundima yekuchenesa mvura yetsvina, ese ari maviri polyaluminium chloride (PAC) uye aruminiyamu sulfate anoshandiswa zvakanyanya secoagulants. Pane misiyano muchimiro chemakemikari yeaya maajenti maviri, zvichikonzera kuita kwavo kwakasiyana uye kushandiswa. Mumakore achangopfuura, PAC yave ichifarirwa zvishoma nezvishoma nekuda kwekurapa kwayo kwakanyanya uye nekukurumidza. Muchinyorwa chino, tichakurukura mutsauko uripo pakati pePAC nealuminium sulfate mukurapwa kwemvura yetsvina kuti ikubatsire kuita sarudzo ine ruzivo.

Chekutanga, ngatidzidzei nezve polyaluminum chloride (PAC). Se inorganic polymer coagulant, PAC ine yakanakisa solubility uye inogona kukurumidza kuumba flocs. Inotamba basa rekubatanidza kuburikidza nemagetsi neutralization uye net trapping, uye inoshandiswa pamwe chete neflocculant PAM kunyatsobvisa tsvina mumvura yakasviba. Kuenzaniswa nealuminium sulfate, PAC ine simba rakasimba rekugadzirisa uye kunaka kwemvura mushure mekucheneswa. Zvichakadaro, mari yekuchenesa mvura yePAC ndeye 15% -30% yakaderera pane aluminium sulfate. Panyaya yekudya alkalinity mumvura, PAC ine yakaderera kushandiswa uye inogona kuderedza kana kudzima jekiseni re alkaline agent.

Inotevera aluminium sulfate. Sechinyakare coagulant, aluminium sulfate adsorbs uye coagulates zvinosvibisa kuburikidza nealuminium hydroxide colloids inogadzirwa nehydrolysis. Kunyungudika kwayo kunenge kwakashata, asi kwakakodzera kurapwa kwemvura yetsvina ine pH ye6.0-7.5. Kuenzaniswa nePAC, aluminium sulfate ine yakaderera kurapwa kugona uye yakacheneswa mhando yemvura, uye mutengo wekuchenesa mvura wakakwira.

Panyaya yezviyero zvekushanda, PAC uye aluminium sulfate ine zvishoma zvakasiyana mafomu; PAC inowanzo kuve nyore kubata uye inoita flocs nekukurumidza, izvo zvinovandudza mashandiro ekurapa. Aluminium sulfate, kune rumwe rutivi, inononoka kuita hydrolyze uye inogona kutora nguva yakareba kuti ibatane.

Aluminium sulfateinoderedza pH uye alkanility yemvura yakarapwa, saka soda kana lime inodiwa kuti isaite mhedzisiro. PAC mhinduro iri padyo nekusarerekera uye hapana chinodiwa kune chero neutralizing agent (soda kana lime).

Panyaya yekuchengetedza, PAC nealuminium sulfate inowanzogadzikana uye iri nyore kuchengeta nekutakura. Nepo PAC ichifanirwa kuvharwa kudzivirira kunyudzwa kwemwando uye kuratidzwa kuchiedza chezuva.

Mukuwedzera, kubva pakuona kwekuora, aluminium sulfate iri nyore kushandisa asi inowedzera kuora. Paunosarudza coagulants, iyo inogona kuitika yezvose zviri zviviri pamidziyo yekurapa inofanirwa kutariswa zvizere.

Muchidimbu,Polyaluminium Chloride(PAC) uye aruminiyamu sulfate vane zvakanakira nekuipira mukurapwa kwetsvina. Pakazere, PAC iri kuita zvishoma nezvishoma coagulant nekuda kwehunyanzvi hwayo hwepamusoro, kugona kurapa kwemvura yetsvina nekukurumidza uye yakafara pH kuchinjika. Nekudaro, aruminiyamu sulfate ichine zvakanakira zvisingadzoreki mune mamwe mamiriro ezvinhu. Naizvozvo, pakusarudza coagulant, zvinhu zvakaita sekuda chaiko, maitiro ekurapa uye mutengo unofanirwa kutariswa. Kusarudza iyo coagulant yakakodzera kuchabatsira kuvandudza kushanda kwemarara emvura.