XIAO Xiong1,2, ZHANG Run-yu1*, LONG Jian2, CHEN Jing-an1, ZOU Yin-hong1,3
(1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China;
2. Key Laboratory of Mountain Environment of Guizhou Normal University, Guizhou, Guiyang 550001, China;
3.University of Chinese Academy of Sciences, Beijing 100049, China )
Abstract: Red mud is a solid waste produced in the process of refining alumina from the aluminum industry. At present, worldwide bauxite residue disposal areas contain an estimated 2.7 billion tons of residue, increasing by approximately 120 million tons per annum. It mainly relies on yard or reclamation disposal, not only takes up a lot of land resources, consumes more maintenance costs, but also causes great pollution to the surrounding environment. Hence, it is urgent to utilize red mud comprehensively. It has been widely used in pollution control and environmental remediation in recent years because of its good particle dispersion, large specific surface area, excellent adsorption properties and high stability in solution. This paper presented the categories, mineral composition and physicochemical characteristics of red mud, summarized the research progress of its application in the phosphorus control of sewage and surface sediment, focused on different modification methods and the mechanism of phosphorus removal and its effect, and pointed out the future development direction of research.
Keywords: red mud; sewage; sediment; phosphorus; modification
E-mail: xiaoxiong_wfk@126.com
ACTA MINERALOGICA SINICA Vol. 37, No. 6, 2017, Page 764-770
