Geochemical Study of Engineering Shield of Uranium, Strontium and Cesium at a very Low Level Waste Disposal Site

Abstract:

Advantages and disadvantages of natural shields in a very low level waste (VLLW) disposal area were studied with regard to the adsorption and fixation capability of the natural shields against radioactive elements Uranium, Strontium and Cesium, with the understanding of the hydrogeological and geochemical characteristics of the surrounding area. Necessity of establishing geochemical engineering shield in the disposal area is discussed based on the understanding of the inadequacy of the natural shields against Uranium and Strontium. A physical chemistry model involving three-fold of shields suitable for the disposal area is proposed with integrated consideration of the results from efficacy and endurance experiments on the natural shield.

• Periodical: Advanced Materials Research (Volumes 781-784)
• Pages: 2029-2035
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.781-784.2029
• Online since: September 2013
• Authors: Pei Cong Zhang, Shi Jun Ni, Ke Hui Qiu, Jun Feng Li, Miao Deng, Yu Chong Qiu, Ke Yi Wang
• Keywords: Geochemical Engineering Shield, Physical Chemistry Model, Strontium, Uranium, Very Low Level Waste

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