txheej txheem Zeolite thiab txheej txheem pauv ion yog cov txheej txheem dej softening. Qhov sib txawv tseem ceeb ntawm zeolite thiab ion txauv txheej txheem yog cov txheej txheem zeolite siv cov ntxhia zeolite raws li kev sib pauv cov resin rau cations hauv cov dej tawv thaum cov txheej txheem ion pauv yuav suav nrog ntau yam sib txawv rau kev sib pauv ion. Tsis tas li ntawd, cov txheej txheem zeolite yog ib daim ntawv ntawm ion pauv txheej txheem ntawm softening dej nyuaj.
Cov dej tawv yog cov dej uas muaj calcium lossis magnesium cations. Lub xub ntiag ntawm cov cations hauv dej tuaj yeem ua rau muaj teeb meem xws li txo qhov ua tau zoo ntawm yuav luag txhua txoj haujlwm tu los ntawm kev cuam tshuam nrog cov cua sov, cov kav dej hlau lossis cov tshuaj ntxuav tes. Yog li ntawd, nws yog qhov zoo dua los tshem cov ions ntawm cov dej tawv; peb hu ua dej softening. Peb tuaj yeem ua qhov no tshem tawm ntawm cov txheej txheem ion pauv. Zeolite txheej txheem yog ib qho txheej txheem zoo li no.
Zeolite Process yog dab tsi?
Zeolite txheej txheem yog txheej txheem ntawm softening dej nyuaj ntawm ion txauv txheej txheem siv cov tshuaj compound zeolite. Nws yog ib qho tshuaj compound uas muaj hydrated sodium aluminosilicate. Qhov no ua rau lub npe txheej txheem no ua cov txheej txheem zeolite. Zeolite tuaj yeem pauv nws cov sodium cations reversibly nrog calcium thiab magnesium ions hauv cov txheej txheem dej softening.
Muaj ob hom zeolite li ntuj thiab hluavtaws zeolite. Lub ntuj daim ntawv yog ntxeem tau thiab hluavtaws daim ntawv yog ib tug non-porous zeolite. Tsis tas li ntawd, daim ntawv hluavtaws muaj qhov sib pauv siab ntawm ib chav tsev hnyav dua li daim ntawv ntuj.
Daim duab 01: Lub tog raj kheej muaj lub txaj Zeolite
txheej txheem
Nyob rau hauv cov txheej txheem dej softening, peb dhau cov dej nyuaj los ntawm ib lub txaj ntawm zeolite (hauv lub tog raj kheej) ntawm tus nqi teev. Tom qab ntawd cov cations uas ua rau cov dej-hardening yuav khaws cia ntawm zeolite txaj vim tias cov cations pauv nrog sodium cations ntawm zeolite. Yog li ntawd, cov dej tawm ntawm lub tog raj kheej no muaj sodium cations es tsis yog calcium thiab magnesium cations.
Tom qab qee lub sijhawm, lub txaj zeolite tau qaug zog. Tom qab ntawd peb yuav tsum nres cov dej ntws thiab kho lub txaj nrog cov tshuaj brine (10%) kom rov tsim cov zeolite. Thaum peb kho lub txaj nrog cov tshuaj brine, nws ntxuav tag nrho cov calcium thiab magnesium ions, los ntawm kev sib pauv nrog sodium ions hauv cov tshuaj brine. Yog li ntawd, qhov kev kho no rov tsim cov zeolite.
Ion Exchange Process yog dab tsi?
Ion txauv txheej txheem yog txheej txheem dej softening uas peb siv cations los yog anions thiaj li soften dej. Peb tuaj yeem ua qhov no los ntawm kev sib pauv cations lossis anions nrog calcium thiab magnesium ions hauv dej tawv. Cov txheej txheem no suav nrog cov tshuaj tiv thaiv rov qab. Txawm li cas los xij, peb tuaj yeem siv cov txheej txheem no tsuas yog rau cov kev daws teeb meem. Cov khoom siv uas peb siv rau lub hom phiaj no yog ion exchangers.
Type
Muaj ob hom;
- Cation exchangers - siv zeolite, greensand, sulfonated thee, thiab lwm yam raws li kev sib pauv khoom.
- Anion exchangers - siv hlau oxides, hluavtaws resins, thiab lwm yam.
Cov ntaub ntawv uas peb siv hauv cation exchangers muaj xws li cov acids tsis muaj zog lossis muaj zog acids. Muaj zog acid cation exchangers feem ntau muaj sulfate functional pawg. Tsis muaj zog acid cation exchangers feem ntau muaj carboxyl pawg. Cov ntaub ntawv uas peb siv nyob rau hauv anion exchangers muaj xws li tsis muaj zog bases los yog muaj zog bases. Ntxiv mus, muaj ntau pawg ntawm ion txauv txheej txheem uas suav nrog softening, dealkalization thiab demineralization. Cov ions uas koom nrog hauv cov txheej txheem pauv (cov ions uas pauv nrog cov calcium thiab magnesium cations hauv cov dej nyuaj) suav nrog sodium ions, hydrogen cations, chloride anions thiab hydroxyl anions.
Qhov txawv ntawm Zeolite thiab Ion Txauv Txheej Txheem yog dab tsi?
txheej txheem zeolite yog txheej txheem ntawm softening dej nyuaj ntawm ion txauv txheej txheem siv cov tshuaj lom neeg zeolite whereas cov txheej txheem ion txauv yog cov dej softening uas peb siv cations los yog anions thiaj li soften dej. Qhov no yog qhov sib txawv tseem ceeb ntawm zeolite thiab ion txauv txheej txheem. Txawm li cas los xij, cov txheej txheem zeolite yog ib hom kev sib pauv ion vim tias cov txheej txheem no cuam tshuam nrog kev sib pauv cov sodium ions hauv zeolite nrog calcium thiab magnesium ions hauv cov dej tawv. Ntxiv mus, cov txheej txheem zeolite cuam tshuam nrog kev sib pauv ntawm sodium ions nkaus xwb thaum cov txheej txheem pauv ion koom nrog cov anions sib txawv thiab cations xws li chloride ion, hydroxyl ion, hydrogen ion thiab sodium ion.
Cov hauv qab no qhia txog qhov sib txawv ntawm zeolite thiab ion pauv txheej txheem hauv daim ntawv teev npe.
Summary – Zeolite vs Ion Txauv txheej txheem
Cov txheej txheem pauv ion cuam tshuam nrog kev sib pauv ntawm calcium thiab magnesium ions hauv cov dej tawv nrog cov anions sib txawv lossis cations hauv exchangers. Cov txheej txheem no tseem ceeb heev rau kev tshem tawm cov tawv tawv ntawm cov dej. Zeolite txheej txheem kuj yog ib pawg ntawm cov txheej txheem ion pauv. Qhov sib txawv ntawm zeolite thiab ion txauv txheej txheem yog cov txheej txheem zeolite siv cov ntxhia zeolite raws li kev sib pauv cov resin rau cations hauv cov dej nyuaj whereas cov txheej txheem ion pauv yuav suav nrog ntau yam sib txawv rau kev sib pauv ion.
