ENVIRONMENTAL PROTECTION AND TREATMENT OF RADIO ACTIVE WASTE SOLUTIONS IN THE CASPIAN SEA USING LOCAL CLAY MINERALS

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Shaham Afshin; Dadfar Hilda

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS) PORTS & MARITIME ORGANIZATION
Year:2006 | Issue:7

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Title

ENVIRONMENTAL PROTECTION AND TREATMENT OF RADIO ACTIVE WASTE SOLUTIONS IN THE CASPIAN SEA USING LOCAL CLAY MINERALS

Author(s)

Shaham Afshin | Dadfar Hilda

Keywords

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Abstract

THE AIM OF THIS WORK IS TO ESTABLISH THE OPTIMUM CONDITIONS FOR THE REMOVAL OF SOME RADIOACTIVE ELEMENTS FROM THEIR WASTE SOLUTIONS IN THE SOUTH WEST OF THE CASPIAN SEA. IN THIS RESPECT AN EXPLORATORY INVESTIGATION IS CARRIED OUT USING THE CLAY MINERALS (KAOLINITE AND VERMICULITE) TO TEST THE FEASIBILITY OF ITS USING FOR DECONTAMINATION PURPOSES AND VOLUME REDUCTION. THE DIFFERENT PARAMETERS AFFECTING THE SORPTION CAPACITY OF THE RADIOACTIVE ELEMENTS OF CS-134, CO-60 AND EU-(152+154) BY THE INVESTIGATED CLAY MINERALS HAVE BEEN STUDIED. THE UPTAKE OF THE METAL ION WAS DETERMINED FOR CLAY MINERAL-CATION SOLUTION SYSTEM AS A FUNCTION OF CONTACT TIME, PH, METAL ION CONCENTRATION AND PRESENCE OF SOME COMPETING CATIONS. SORPTION DATA HAVE BEEN INTERPRETED IN TERMS OF FREUNDLICH EQUATION. THE PRESENCE OF SOME ORGANIC COMPLEXING AGENTS ALSO AFFECT THE SORPTION PROCESS. THE DESORPTION OF THE INVESTIGATED METAL IONS WAS ALSO STUDIED USING DIFFERENT DESORPTION SOLUTIONS. THE OBTAINED DATA SHOW THAT THE CLAY MINERAL VERMICULITE CAN BE CONSIDERED AS AN EFFICIENT SORBENT FOR METAL CATIONS FROM THEIR AQUEOUS SOLUTIONS SINCE THE UPTAKE EFFICIENCY IS MORE THAN FOR THE THREE ELEMENTS STUDIED.

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APA: Copy

Shaham, Afshin, & Dadfar, Hilda. (2006). ENVIRONMENTAL PROTECTION AND TREATMENT OF RADIO ACTIVE WASTE SOLUTIONS IN THE CASPIAN SEA USING LOCAL CLAY MINERALS. INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS). SID. https://sid.ir/paper/907130/en

Vancouver: Copy

Shaham Afshin, Dadfar Hilda. ENVIRONMENTAL PROTECTION AND TREATMENT OF RADIO ACTIVE WASTE SOLUTIONS IN THE CASPIAN SEA USING LOCAL CLAY MINERALS. 2006. Available from: https://sid.ir/paper/907130/en

IEEE: Copy

Afshin Shaham, and Hilda Dadfar, “ENVIRONMENTAL PROTECTION AND TREATMENT OF RADIO ACTIVE WASTE SOLUTIONS IN THE CASPIAN SEA USING LOCAL CLAY MINERALS,” presented at the INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS). 2006, [Online]. Available: https://sid.ir/paper/907130/en

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