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Cation exchange resin: pauv kev paub cob

Qhov kev xaiv ntawm ion txauv cob yog cuam tshuam nrog cov hauv qab no:
1. Tus nqi ntau dua ion band yog, nws yooj yim dua yuav raug adsorbed los ntawm anion txauv resin. Piv txwv li, divalent ions tau yooj yim dua adsorbed dua li monovalent ions.
2. Rau cov ions nrog rau tus nqi tib yam, cov ions nrog kev txiav txim siab loj dua yog qhov yooj yim dua kom nqus tau.
3. Sib piv nrog cov tshuaj dilute, cov ions hauv paus hauv cov tshuaj sib xyaw tau yooj yim kom tau adsorbed los ntawm cov tshuaj. Feem ntau hais lus, rau H-hom muaj zog acid cation anion txauv cob, xaiv qhov kev xaiv ntawm ions hauv dej. Rau Oh hom muaj zog yooj yim anion pauv cob, xaiv qhov kev txiav txim ntawm anions hauv dej zoo dua. Qhov kev xaiv ntawm anion txauv resin yog qhov muaj txiaj ntsig zoo rau kev tshuaj xyuas thiab sib txawv ntawm cov txheej txheem ntawm kev kho dej tshuaj.
Tswj qhov zoo ntawm cov dej nkag hauv dej:
1. Turbidity ntawm cov dej: nqes AC ≤ 5mg / L, convective AC ≤ 2mg / L. Ion pauv cob
2. Cov tshuaj chlorine tseem tshuav: dawb chlorine ≤ 0.1mg/l.
3. Tshuaj oxygen xav tau (COD) ≤ 1mg / L.
4. Cov ntsiab lus hlau: sib xyaw txaj AC ≤ 0.3mg/l, sib xyaw txaj AC ≤ 0.1mg/l.
Tom qab 10-20 lub lis piam ntawm kev ua haujlwm, cov pa phem ntawm cation txauv resin tau tshuaj xyuas. Yog tias pom muaj kuab paug, nws yuav tsum tau daws nrog lub sijhawm.


Sijhawm Tshaj Tawm: Jun-09-2021