In maindasitiri etsvina kurapwa, kubviswa kwezvakarembera zvakasimba ndicho chinhu chinokosha. Izvi hazvingobatsiri chete kuvandudza kunaka kwemvura, zvakare zvinoderedza kupera uye kubvarura pamidziyo uye kuvhara. Parizvino, nzira dzekubvisa dzakamira dzakamira dzinosanganisira sedimentation, filtration, flotation uye flocculation. Pakati pavo, iyo flocculation nzira inoshandiswa zvakanyanya nekuda kwekuita kwayo kwakanyanya uye hupfumi. Nenzira iyi, polymer inonzi PolyDADMAC inoita basa rakakosha.
PolyDADMAC, ine zita rizere rePoly diallyl dimethyl ammonium chloride, ndeyepamusoro molecular polymer. Iyo inonyanya kuumbwa ne polymerizing diallyldimethylammonium chloride monomer kuburikidza neketani yekukura polymerization. Iyi polymerization reaction inowanzoitwa pasi pe catalysis yeasidhi kana munyu, uye mutsara chimiro polymer inogona kuwanikwa. Kazhinji imvura yero kana kuti chena kusvika kuhupfu hweyero kana magranules. Iine kunyungudika kwakanaka uye inogona kuparadzirwa zvakaenzana mumhinduro dzine aqueous.
PolyDADMACine high charge density uye inowanzoita senge cationic polymer. Izvi zvinoreva kuti inogona adsorb zvakashata zvakaturikwa zvimedu uye colloidal particles mumvura kuita flocs hombe, nokudaro kuwana zvinobudirira kubvisa yakaturikwa yakaoma. PolyDADMAC inowanzo shandiswa se flocculant uye coagulant uye inoshandiswa zvakanyanya munzvimbo dzakasiyana siyana dzekuchenesa mvura, kusanganisira maindasitiri emarara emarara uye marara emudhorobha. Inogona kukurumidza kuumba flocs hombe uye dense mumvura tsvina uye zvinobudirira kubvisa yakaturikwa yakasimba, heavy metal ions uye organic zvinosvibisa.
Mukurapa kwemvura yetsvina kubva mupulp uye mapepa ezvigayo, maitiro ekuita kwePolyDADMAC anonyanya kuratidzwa mune zvinotevera zvinhu:
Charge neutralization: Nekuda kwekuti PolyDADMAC ine high charge density, inokwanisa kukurumidza kushambadza pane zvisina kunaka zvakamiswa zvakamiswa zvimedu uye colloidal particles, zvichiita kuti varasikirwe nekugadzikana kuburikidza nechaji neutralization, uyezve aggregate kuita flocs dzezvimedu zvakakura.
Chiito chekutsvaira: Sezvo floc inoumbwa, inodhonza zvakamiswa zvakasimba uye colloidal particles mumvura ine tsvina kupinda mu floc, inobudirira-yakasimba-mvura yekuparadzaniswa kuburikidza nekuita kwemuviri.
Net-capture effect: High-molecular polymers inogona kuumba dense network chimiro, ichiteya zvakamiswa zvakasimba uye colloidal particles mairi semambure ekuredza, nekudaro kuwana kupatsanurwa kwakanaka.
Kuenzaniswa nedzimwe nzira dzekuchenesa mvura yetsvina, kushandisa PolyDADMAC kurapa pulp uye mapepa chigayo tsvina ine zvinotevera zvakanakira:
High charge density: PolyDADMAC's high charge density inoita kuti inyatso tora zvisina kunaka zvakamiswa zvakamiswa solids uye colloidal particles, kunatsiridza kurapa kwakanaka.
Kuchinjika kwakasimba: PolyDADMAC ine maitiro akanaka ekurapa pamhando dzakasiyana dzepulp uye mapepa emarara emvura uye haina kukanganiswa nekushanduka kwemhando yemvura.
Kushanda kwepamusoro uye kushandiswa kwakaderera: Kushandisa PolyDADMAC seFlocculantuye coagulant inogona kuderedza zvakanyanya kuyerwa kwemakemikari, uku ichivandudza kurapwa kwakanaka uye kuderedza mari yekushandisa.
Yakasununguka: PolyDADMAC ndeye cationic polymer. Iyo floc inogadzirwa mushure mekushandisa haisi nyore kunyungudutswa kuita zvinhu zvinokuvadza uye inoshamwaridzana nenharaunda.
Mukupedzisa, PolyDADMAC, seaHigh Molecular Polymer, ine zvakanakira zvekushandisa zvakanyanya, kuderera kwekushandisa, uye kushamwaridzana kwezvakatipoteredza, uye inoita basa rakakosha mukurapa tsvina kubva mupulp uye mapepa ezvigayo. Panguva iyo maitiro ekuchengetedza kwezvakatipoteredza akaoma kuramba, PolyDADMAC yakakurumbira kemikari chigadzirwa chinosangana nehunhu hwezvakatipoteredza zvigadzirwa.
Nguva yekutumira: Sep-12-2024