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第47卷-第3期

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1
野溪高土砂災害之模組化防砂壩管理
47(3):111-121
陳樹群[1]* 安軒霈[1] 國領ひろし[2] 林永欣[3]
* Corresponding Author. E-mail : scchen@nchu.edu.tw
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2
潛在大規模崩塌地對鄰近聚落衝擊之調查與評估方法
47(3):122-134
鍾明劍[1]* 陳建新[1] 李璟芳[2] 黃韋凱[2] 譚志豪[1]
* Corresponding Author. E-mail : mcchung@sinotech.org.tw
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3
山區林道挖方邊坡背拉式擋土排樁穩定工法力學參數研究
47(3):135-146
林德貴 王勝賢* 張國欽 陳威翔
* Corresponding Author. E-mail : d099042007@mail.nchu.edu.tw
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4
拋石保護控制固床工趾部局部淘刷之研究
47(3):147-155
吳嘉俊* 黃炳錡 吳雅筠
* Corresponding Author. E-mail : ccwu@mail.npust.edu.tw
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5
高屏溪流域崩塌地之地形特徵分析
47(3):156-164
吳俊毅 蔡喬文 陳樹群
* Corresponding Author. E-mail : scchen@nchu.edu.tw
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6
Evaluation of Trivalent and Hexavalent Chromium Retention on Ain Oussera Soil by the Batch Method and Radiotracer Technique.
47(3):165-170
Rebhi A.M.[1]* Bouzidi A.[2] Lahrech M. B.[3] Mouhouche F.[4] Ararem A.[2] Rebhi F.[2] Lounici H.[5]
* Corresponding Author. E-mail : rebghani@hotmail.com
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Evaluation of Trivalent and Hexavalent Chromium Retention on Ain Oussera Soil by the Batch Method and Radiotracer Technique.
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Rebhi A.M.[1]* Bouzidi A.[2] Lahrech M. B.[3] Mouhouche F.[4] Ararem A.[2] Rebhi F.[2] Lounici H.[5]

Abstract
Major toxicology studies have concluded that Cr (VI) is a highly toxic carcinogen to living organisms,and cause deaths if ingested in large doses. The trivalent form plays an important role in glucose and lipid metabolism
for human and animal diets.Industrial activities present in the study area investigated in this paper, such as tanning, production of paints, and cement,are the main sources of chromium in the soil and air, causing chromium pollution.The aim of this study is to investigate the behavior of Cr (III) and Cr (VI) in soil samples from the Ain Oussera area,using the batch method and radiotracer technique. This assessment of chromium adsorption in the soil allows us to examine its impact. The pH effects of initial concentration, adsorbent dose and temperature were investigated. Particle size, X-ray diffraction and neutron activation analysis methods were used to characterize the soil samples. Results of the Freundlich, and Langmuir isotherm models were compared to the obtained experimental data. The thermodynamic
parameters ΔH°, ΔS° and ΔG° for the adsorption were determined by using four temperatures, 10, 30, 40 and 60°C.The adsorption process was spontaneous and favoured at a low temperature.The maximum adsorption percentage reached for Cr (III) and Cr (VI) in soil was 90 and 24, respectively, with a spontaneous reaction (ΔH°< 0). These results show that hexavalent chromium seeps through soil layers, and reaches the groundwater easily.
Keywords : Heavy metals, chromium, batch sorption, gamma spectrometry, radiotracers.
〔1〕Ecole Nationale Polytechnique d’Alger (Algérie) 〔2〕Centre de Recherche Nucléaire de Birine (Algérie) 〔3〕Laboratoire de Chimie Organique et des Substances Naturelles, Université de Djelfa (Algérie) 〔4〕Ecole Nationale Supérieure d’Agronomie (Algérie) 〔5〕Université de Bouira (Algérie)
* Corresponding Author. E-mail : rebghani@hotmail.com
Received: 2015/06/11
Revised: 2016/01/13
Accepted: 2016/06/13
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