Environment and Ecology Research Vol. 5(6), pp. 461 - 466
DOI: 10.13189/eer.2017.050607
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Determination of Cesium Adsorption Breakthrough Curves Using Carbonized Rice Hull and Beech Sawdust as Adsorbents


Asa Miura *
Faculty of Education and Regional Studies, University of Fukui, Japan

ABSTRACT

To determine the adsorption breakthrough curves of carbonized rice hull and beech sawdust, which were selected as candidate natural materials for Cesium (Cs) adsorption in our previous study, fixed-bed adsorption experiments were conducted. These experiments were performed using a glass column with a continuous flow system and a variable packed-bed height of the above materials. For carbonized rice hull, the breakthrough point appeared relatively early, although a long adsorption time was required to reach the end point. In addition, for beech sawdust, the maximum Cs concentration at the column outlet was approximately 1.2 times that at the inlet. Regarding the Cs mass balance in the packed-bed layer, the amount of Cs adsorbed per unit weight of adsorbent was greater for carbonized rice hull than for beech sawdust. Furthermore, the adsorption ratio in the packed-bed was higher for beech sawdust than for carbonized rice hull. However, following estimation of the length of the adsorption zone formed in the packed bed using the model formula commonly employed in the design of the fixed-bed adsorption apparatus, it was not possible to calculate the real length of the adsorption zone.

KEYWORDS
Cesium, Carbonized Rice Hull, Beech Sawdust, Fixed-bed Layer, Breakthrough Curve

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Asa Miura , "Determination of Cesium Adsorption Breakthrough Curves Using Carbonized Rice Hull and Beech Sawdust as Adsorbents," Environment and Ecology Research, Vol. 5, No. 6, pp. 461 - 466, 2017. DOI: 10.13189/eer.2017.050607.

(b). APA Format:
Asa Miura (2017). Determination of Cesium Adsorption Breakthrough Curves Using Carbonized Rice Hull and Beech Sawdust as Adsorbents. Environment and Ecology Research, 5(6), 461 - 466. DOI: 10.13189/eer.2017.050607.