Kurapa kwemvura chikamu chakakosha chekuchengetedzwa kwezvakatipoteredza uye hutano hweveruzhinji, uye chinangwa chayo ndechekuvimbisa hutano hwemvura yakachengeteka uye kusangana nezvinodiwa zvekushandisa kwakasiyana. Pakati penzira dzakawanda dzekurapa mvura,polyaluminium chloride(PAC) inosarudzwa zvakanyanya kune yayo yakasarudzika zvivakwa uye inoshanda coagulation mhedzisiro.
Inoshanda coagulation mhedzisiro: PAC ine yakanakisa coagulation performance uye inogona kunyatso bvisa tsvina yakaita seyakamiswa solids, colloids uye isinganyungudika organic zvinhu mumvura uye kunatsiridza kunaka kwemvura.
Iyo michina yepolyaluminium chloride (PAC) se coagulant inonyanya kusanganisira kudzvanya kwemagetsi maviri layer, charge neutralization uye net trapping. Kudzvinyirirwa kwekaviri yemagetsi layer kunoreva kuti mushure mekuwedzera PAC kumvura, aluminium ion uye chloride ions zvinogadzira adsorption layer pamusoro peiyo colloidal particles, nekudaro kudzvanya iyo yakapetwa yemagetsi layer iri pamusoro peiyo colloidal particles, zvichiita kuti irege kugadzikana uye. condense; adsorption bridging is The cations in the PAC molecules inokwezva imwe neimwe uye yakaipa mhosva pamusoro peiyo colloidal particles, ichigadzira "bhiriji" chimiro chekubatanidza akawanda colloidal particles; mambure maitiro ari kuburikidza neadsorption uye bridging maitiro ePAC mamorekuru uye colloidal particles, iyo inombundira iyo colloidal particles. Yakabatwa mune network ye coagulant mamorekuru.
Polyaluminium chloride inoshandiswa kugadzirisa mvura
Kuenzaniswa neinorganic flocculants, yakavandudza zvakanyanya decolorization maitiro edhayi. Maitiro ayo ekuita ndeokuti PAC inogona kusimudzira mamorekuru edhayi kuti aumbe ma flocs akanaka kuburikidza nekudzvanywa kana kusarerekera kwemagetsi kaviri layer.
Kana PAM ikashandiswa musanganiswa nePAC, iyo anionic organic polymer mamorekuru anogona kushandisa bhiriji mhedzisiro yemacheni avo marefu mamorekuru kugadzira flocs dzakakora pamwe nekubatana kweanovhiringidza agent. Iyi nzira inobatsira kugadzirisa kugadzirisa uye inoita kuti heavy metal ions zvive nyore kubvisa. Pamusoro pezvo, huwandu hukuru hwemapoka emamide ari mumacheni eparutivi eanionic polyacrylamide mamorekuru anogona kugadzira ma ionic bond ne -SON mumamorekuru edhayi. Kuumbwa kweichi chemikemikari chisungo kunoderedza kunyungudika kweiyo organic flocculant mumvura, nekudaro ichikurudzira kukurumidza kuumbwa uye kunaya kwemaflocs. Iyi yakadzika yekusunga michina inoita kuti zvinyanye kuomera kuti heavy metal ions itize, ichivandudza kushanda nekuita kwekurapa.
Mukutaura kwekubvisa phosphorus, kushanda kwe polyaluminium chloride hakugoni kuregererwa. Kana yawedzerwa kumvura ine tsvina ine phosphorus, inogona kuita hydrolyze kugadzira trivalent aluminum metal ions. Iyi ion inosungirira kune yakanyungudika phosphates mumvura ine tsvina, ichishandura iyo yekupedzisira kuita insoluble phosphate precipitates. Iyi nzira yekushandura inonyatsobvisa phosphate ions kubva mumvura yakasvibiswa uye inoderedza kuipa kwephosphorus pamitumbi yemvura.
Pamusoro pekuita kwakananga nephosphate, iyo coagulation mhedzisiro ye polyaluminium chloride inoitawo basa rakakosha mukubvisa phosphorus. Inogona kuwana adsorption uye bhiriji nekudzvanya iyo yekuchaja layer pamusoro peiyo phosphate ions. Izvi zvinokonzeresa kuti ma phosphates uye zvimwe zvinosvibisa zvipenyu mumvura ine tsvina kuti zvikurumidze kubatirana kuita clumps, kugadzira flocs dziri nyore kugadzirisa.
Kunyanya kukosha, kune yakanaka granular yakamiswa yakasimba inogadzirwa mushure mekuwedzera phosphorus yekubvisa agent, PAC inoshandisa yayo yakasarudzika mambure ekubata uye yakasimba charge neutralization mhedzisiro kusimudzira zvishoma nezvishoma kukura uye kukora kweaya akaturikwa yakaoma, uye ipapo condense, aggregate, uye flocculate mukati. zvimedu zvakakura. Zvimedu izvi zvinobva zvagara pasi pasi, uye kuburikidza nekuparadzana kwakasimba-mvura, iyo supernatant fluid inogona kubudiswa, nekudaro inobudirira kubviswa kwephosphorus. Iyi nhevedzano yemaitiro akaomarara emuviri uye emakemikari anovimbisa kushanda uye kugadzikana kwekugadziriswa kwemvura yakasviba, ichipa vimbiso yakasimba yekuchengetedzwa kwezvakatipoteredza uye kushandiswazve kwemvura.
Nguva yekutumira: Jul-10-2024