Extraction, recovery, and removal technology for radioactive cesium and strontium using adsorbents.
S11213
★This is a seminar that allows for a concrete understanding of the effects, challenges, and practicality of a new recovery technology using Prussian blue and a new adsorbent!
**Instructor** **Part 1:** Mr. Toru Kawamoto, Group Leader, Green Technology Research, Nano System Research Division, National Institute of Advanced Industrial Science and Technology (AIST) **Part 2:** Associate Professor Hiroshi Nishioka, Nanodomain and Environmental Materials Chemistry Research Group, Department of Materials Science and Engineering, University of Hyogo **Target Audience:** Researchers and personnel interested in radioactive cesium and strontium recovery technologies using pigments **Venue:** [Tokyo, Nihonbashi] Tokyo Chuo City Industrial Hall, 4th Floor, Meeting Room 1 5 minutes from B4 exit via the underground passage from Bakuroyokoyama Station on the Toei Shinjuku Line (Directions 2) 5 minutes from C1 exit via the East Exit ticket gate of Bakurocho Station on the JR Sobu Rapid Line (Directions 3) and others **Date and Time:** Tuesday, December 20, 2011, 10:30 AM - 1:15 PM **Capacity:** 20 participants. *Please apply early as there may be a rush of applications.* **Participation Fee:** **[Early Bird Discount Price]** 46,200 yen (tax included, including text costs) for up to 2 participants from one company. *Limited to Tech-Zone members who apply by December 6. Membership registration is free.* *After December 6, the [Regular Price] will be 49,350 yen (tax included, including text costs) for up to 2 participants from one company.*
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basic information
**Lecture Summary** Since the Fukushima nuclear accident following the Great East Japan Earthquake, the spread of radioactive cesium has become a significant issue. Cesium is an easily ionizable element, which readily dissolves and spreads in water, contaminating water and soil. To efficiently recover and remove such harmful substances that are widely and thinly distributed in the environment, effective adsorbents are required. This lecture will introduce adsorbents designed for the rapid adsorption and removal of cesium ions, aimed at the fast purification of water and soil contaminated by radioactive cesium. Specifically, the synthesis of adsorbents made from inorganic waste materials and the characteristics of these adsorbents will also be discussed.
Price range
P2
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P2
Applications/Examples of results
1. Characteristics of Cesium and Radioactive Cesium 2. Prussian Blue as a Cesium Adsorbent 2-1. Metal Hexacyanoferrate (MHCF) 2-2. Decontamination System for Fukushima Daiichi Nuclear Power Plant 2-3. Ion Adsorption and Hydration Radius 2-4. PB as an Internal Exposure Drug for Cesium and Thallium 2-5. Achievements of Prussian Blue 2-6. Development of Adsorbents Based on Organic Materials 2-7. Adsorption Capacity and Rate of Adsorbents 2-8. Various Forms of Prussian Blue Adsorbents 3. Cesium Extraction and Recovery Techniques from Soil 3-1. Previous Cases of Radioactive Cesium Removal from Soil 3-2. Extraction of Cesium Ions from Soil and Recovery with Adsorbents 3-2-1. Result 1: Improvement of Cesium Extraction Efficiency from Soil 3-2-2. Result 2: High-Efficiency Recovery Using Prussian Blue Nanoparticles 3-2-3. Result 3: Increased Efficiency through Sequential Processing 3-3. Requirements for Adsorbents Necessary for Cs Extraction/Recovery from Soil 4. Conclusion
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