Chung, IJ Choi, YS Hong, SW Park, HM 2024-01-21T12:10:03Z 2024-01-21T12:10:03Z 2021-09-04 2001-07 0959-3330 https://pubs.kist.re.kr/handle/201004/140380 Under environmental conditions, arsenic (As) reveals anionic behavior and is converted into various forms in accordance with the Eh/pH condition. This causes the difficulty of treating As with other heavy metals in tailing. This study was carried out to develop the immobilization method of arsenic in tailing as ferric arsenate (FeAsO4) using hydrogen peroxide. According to experimental results, the extracted concentrations of arsenic and iron (Fe) from tailing were reduced up to 84% and 93%, respectively. In the experiment using pure Pyrite (FeS2) and As solution, As concentration decreased with an increase of hydrogen peroxide dosage. The experimental results of re-extraction showed that only 10% of As and 20% of Fe were extracted in the case of using hydrogen peroxide. As a result, the long-term stability of this method was clarified. English SELPER LTD, PUBLICATIONS DIV Immobilization of arsenic in tailing by using iron and hydrogen peroxide Article 10.1080/095933322086180325 1 ENVIRONMENTAL TECHNOLOGY, v.22, no.7, pp.831 - 835 ENVIRONMENTAL TECHNOLOGY 22 7 831 835 N scie scopus 000170195000008 2-s2.0-0034922472 Environmental Sciences Environmental Sciences & Ecology Article arsenic iron immobilization hydrogen peroxide tailing