title: A new approach for remediation of As-contaminated soil: ball mill-based technique.
abstract: In this study, a physical ball mill process instead of chemical extraction using toxic chemical agents was applied to remove arsenic (As) from contaminated soil. A statistical analysis was carried out to establish the optimal conditions for ball mill processing. As a result of the statistical analysis, approximately 70% of As was removed from the soil at the following conditions: 5 min, 1.0 cm, 10 rpm, and 5% of operating time, media size, rotational velocity, and soil loading conditions, respectively. A significant amount of As remained in the grinded fine soil after ball mill processing while more than 90% of soil has the original properties to be reused or recycled. As a result, the ball mill process could remove the metals bound strongly to the surface of soil by the surface grinding, which could be applied as a pretreatment before application of chemical extraction to reduce the load.
authors.affiliation: Department of Environmental Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabukdo, Republic of Korea.
authors.forename: Yeon-Jun
authors.initials: YJ
authors.lastname: Shin
authors.affiliation: Department of Environmental Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabukdo, Republic of Korea.
authors.forename: Sang-Min
authors.initials: SM
authors.lastname: Park
authors.affiliation: Department of Environmental Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabukdo, Republic of Korea.
authors.forename: Jong-Chan
authors.initials: JC
authors.lastname: Yoo
authors.affiliation: JIU EnE Co. Ltd., B-816, 401 Yangcheon-ro, Gangseo-gu, Seoul, Republic of Korea.
authors.forename: Chil-Sung
authors.initials: CS
authors.lastname: Jeon
authors.affiliation: JIU EnE Co. Ltd., B-816, 401 Yangcheon-ro, Gangseo-gu, Seoul, Republic of Korea.
authors.forename: Seung-Woo
authors.initials: SW
authors.lastname: Lee
authors.affiliation: Department of Environmental Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabukdo, Republic of Korea. kbaek@jbnu.ac.kr.|Department of Bioactive Material Sciences, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabukdo, Republic of Korea. kbaek@jbnu.ac.kr.
authors.forename: Kitae
authors.initials: K
authors.lastname: Baek
mesh_terms: D001151:Arsenic; D052918:Environmental Restoration and Remediation / Q000379:methods*; D055595:Mechanical Phenomena; D012989:Soil Pollutants / Q000737:chemistry / Q000378:metabolism
chemical_list: D012989:Soil Pollutants; D001151:Arsenic
keywords: Arsenic; Ball mill; Fractionation; Particle size; Remediation; Wet grinding