In kurapwa kwemvura yakasviba mumaindasitiri, kubviswa kwezvinhu zvakasungirirwa chinhu chakakosha. Izvi hazvingobatsiri chete kuvandudza kunaka kwemvura, asi zvinoderedzawo kupera kwemidziyo uye kuvharika kwayo. Parizvino, nzira dzekubvisa zvinhu zvakasungirirwa dzinosanganisira sedimentation, filtration, flotation uye flocculation. Pakati pazvo, nzira yeflocculation inoshandiswa zvakanyanya nekuda kwekushanda kwayo kwepamusoro uye kuchengetedza mari. Munzira iyi, polymer inonzi PolyDADMAC inoita basa rakakosha.
PolyDADMAC, ine zita rakazara rekuti Poly diallyl dimethyl ammonium chloride, ipolymer ine mamorekuru akawanda. Inonyanya kugadzirwa nekugadzira polymer ye diallyldimethylammonium chloride monomer kuburikidza nekugadzira polymer ye chain growth. Iyi polymerization reaction inowanzoitwa pasi pe catalysis ye acid kana munyu, uye polymer ine linear structure inogona kuwanikwa. Inowanzova yellow liquid kana chena kusvika yellow powder kana granules. Ine solubility yakanaka uye inogona kupararira zvakaenzana mumvura.
PolyDADMACine simba rakawanda rekuchaja uye inowanzoita se cationic polymer. Izvi zvinoreva kuti inogona kusveta zvinhu zvakasimba zvakamiswa zvisina chaji uye zvikamu zve colloidal mumvura kuti igadzire ma flocs makuru, nokudaro ichibvisa zvinobudirira zvinhu zvakasimba zvakamiswa. PolyDADMAC inowanzoshandiswa se flocculant uye coagulant uye inoshandiswa zvakanyanya munzvimbo dzakasiyana-siyana dzekuchenesa mvura, kusanganisira kurapwa kwemvura yakasviba mumaindasitiri uye kurapwa kwetsvina yemumaguta. Inogona kuumba ma flocs makuru uye akawandisa mumvura yakasviba uye kubvisa zvinobudirira zvinhu zvakasimba zvakamiswa, ma ions esimbi inorema uye tsvina ye organic.
Mukurapa kwemvura yakasviba kubva kumapump nemapepa, mashandiro ePolyDADMAC anonyanya kuratidzwa mune zvinotevera:
Kuderedza simba rechaja: Nekuti PolyDADMAC ine huwandu hwakawanda hwekuchaja, inogona kukurumidza kunyudza zvinhu zvakasimba zvakamiswa zvisina chaja uye zvikamu zvecolloidal, zvichiita kuti zvirasikirwe nekugadzikana kuburikidza nekudzora simba rechaja, uye zvozoungana kuti zvigadzire maflocs ezvikamu zvikuru.
Kutsvaira: Sezvo floc ichiumbwa, inokwevera zvinhu zvakasimba zvakasungirirwa uye zvidimbu zvecolloidal mumvura yakasviba mufloc, zvichiita kuti pave nekuparadzaniswa kwemvura yakasimba nekushanda kwemuviri.
Kubatwa kweNet: Mapolymer ane mamorekuru akawanda anogona kugadzira network yakakora, achibata zvinhu zvakasimba zvakasungirirwa uye zvidimbu zvecolloidal mairi semambure ekuredza, nokudaro zvichiita kuti pave nekupatsanurwa kwakanaka.
Zvichienzaniswa nedzimwe nzira dzekurapa mvura yakasviba, kushandisa PolyDADMAC kurapa mvura yakasviba yepulp nepaper mill kune zvakanakira zvinotevera:
Kuwanda kwechaji: Kuwanda kwechaji yePolyDAMAC kunoita kuti ikwanise kupinza zvinhu zvakasimba zvakamiswa zvisina mhosva uye zvikamu zvecolloidal zvinobudirira, zvichivandudza kushanda zvakanaka kwekurapa.
Kuchinjika kwakasimba: PolyDADMAC ine mhedzisiro yakanaka pakurapa mhando dzakasiyana dzemvura inoraswa nepepa uye haikanganisike nekuchinja-chinja kwehunhu hwemvura.
Kushanda zvakanyanya uye kushandiswa kwakaderera: Kushandisa PolyDADMAC seFlocculantuye coagulant zvinogona kuderedza zvakanyanya chiyero chemakemikari, ukuwo zvichivandudza kushanda zvakanaka kwekurapa uye zvichideredza mari yekushandisa.
Inochengetedza nharaunda: PolyDADMAC ipolymer yecationic. Floc inogadzirwa mushure mekushandiswa haiore nyore kuita zvinhu zvinokuvadza uye inochengetedza nharaunda.
Mukupedzisa, PolyDADMAC, semunhuPolima yeMorekuru Yakawanda, ine zvakanakira zvekushanda nesimba, kushandiswa kushoma, uye kuchengetedzwa kwezvakatipoteredza, uye inoita basa rakakosha mukurapa mvura yakasviba kubva muzvigayo zvemapump nemapepa. Panguva iyo maitiro ekuchengetedza zvakatipoteredza akaoma kuramba, PolyDADMAC chigadzirwa chemakemikari chakakurumbira chinosangana nehunhu hwezvigadzirwa zvine hushamwari kune zvakatipoteredza.
Nguva yekutumira: Gunyana-12-2024