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I want know about reverse ion exchange processes and how to...
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Norman Bateman
I want know about reverse ion exchange processes and how to...
Dear Selvakumar Hello, During saltwater intrusion, this reaction happens ( Na+1/2Ca-clay---------> Na-Clay +1/2Ca ). So, the Na will absorb by ex-changer and replace by Ca. consequently, the concentration of Na in solution will decrease and Ca will increase. So, the potential of Halite dissolution will be increase. this process named Reverse Cation Exchange. During freshening. this reaction happens ( Na-clay+1/2Ca---------> Na+1/2Ca-Clay ). So, the Ca will absorb by ex-changer and replace by Na. consequently, the concentration of Ca in solution will decrease and Na will increase. So, the potential of Halite dissolution will be decrease or the potential of Calcite and Dolomite dissolution will be increase. this process named Cation Exchange.
Dear Selvakumar Hello, During saltwater intrusion, this reaction happens ( Na+1/2Ca-clay---------> Na-Clay +1/2Ca ). So, the Na will absorb by ex-changer and replace by Ca. consequently, the concentration of Na in solution will decrease and Ca will increase. So, the potential of Halite dissolution will be increase. this process named Reverse Cation Exchange. During freshening. this reaction happens ( Na-clay+1/2Ca---------> Na+1/2Ca-Clay ). So, the Ca will absorb by ex-changer and replace by Na. consequently, the concentration of Ca in solution will decrease and Na will increase. So, the potential of Halite dissolution will be decrease or the potential of Calcite and Dolomite dissolution will be increase. this process named Cation Exchange.
Dear Selvakumar. To give you a short answer, when saltwater enters into an aquifer, some of the cations in dissolved form could be exchange with cations attached to the particles in the aquifer. This exchange is constrain by electric charges. Two Na+ dissolved atoms could exchange with one Ca2+ adsorbed on particles (generally on clays). Or one K+ could exchange with one Na+. So, the most abundant cations in seawater will progressively exchange with those adsorbed onto the solid particles (or grains), and the chemistry of the groundwater will progressively change along the pathway of the intrusion.
Dear Selvakumar. To give you a short answer, when saltwater enters into an aquifer, some of the cations in dissolved form could be exchange with cations attached to the particles in the aquifer. This exchange is constrain by electric charges. Two Na+ dissolved atoms could exchange with one Ca2+ adsorbed on particles (generally on clays). Or one K+ could exchange with one Na+. So, the most abundant cations in seawater will progressively exchange with those adsorbed onto the solid particles (or grains), and the chemistry of the groundwater will progressively change along the pathway of the intrusion.
Dear Selvakumar
Hello,
During saltwater intrusion, this reaction happens ( Na+1/2Ca-clay---------> Na-Clay +1/2Ca ). So, the Na will absorb by ex-changer and replace by Ca. consequently, the concentration of Na in solution will decrease and Ca will increase. So, the potential of Halite dissolution will be increase. this process named Reverse Cation Exchange.
During freshening. this reaction happens ( Na-clay+1/2Ca---------> Na+1/2Ca-Clay ). So, the Ca will absorb by ex-changer and replace by Na. consequently, the concentration of Ca in solution will decrease and Na will increase. So, the potential of Halite dissolution will be decrease or the potential of Calcite and Dolomite dissolution will be increase. this process named Cation Exchange.
Dear Selvakumar
Hello,
During saltwater intrusion, this reaction happens ( Na+1/2Ca-clay---------> Na-Clay +1/2Ca ). So, the Na will absorb by ex-changer and replace by Ca. consequently, the concentration of Na in solution will decrease and Ca will increase. So, the potential of Halite dissolution will be increase. this process named Reverse Cation Exchange.
During freshening. this reaction happens ( Na-clay+1/2Ca---------> Na+1/2Ca-Clay ). So, the Ca will absorb by ex-changer and replace by Na. consequently, the concentration of Ca in solution will decrease and Na will increase. So, the potential of Halite dissolution will be decrease or the potential of Calcite and Dolomite dissolution will be increase. this process named Cation Exchange.
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Dear Selvakumar. To give you a short answer, when saltwater enters into an aquifer, some of the cations in dissolved form could be exchange with cations attached to the particles in the aquifer. This exchange is constrain by electric charges. Two Na+ dissolved atoms could exchange with one Ca2+ adsorbed on particles (generally on clays). Or one K+ could exchange with one Na+. So, the most abundant cations in seawater will progressively exchange with those adsorbed onto the solid particles (or grains), and the chemistry of the groundwater will progressively change along the pathway of the intrusion.
Dear Selvakumar. To give you a short answer, when saltwater enters into an aquifer, some of the cations in dissolved form could be exchange with cations attached to the particles in the aquifer. This exchange is constrain by electric charges. Two Na+ dissolved atoms could exchange with one Ca2+ adsorbed on particles (generally on clays). Or one K+ could exchange with one Na+. So, the most abundant cations in seawater will progressively exchange with those adsorbed onto the solid particles (or grains), and the chemistry of the groundwater will progressively change along the pathway of the intrusion.
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