Development of the Inorganic Coagulants Using Red Mud and Evaluation of Its Coagulation Performance 


Vol. 8,  No. 2, pp. 85-92, Jun.  2002


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  Abstract

Red mud is generated as a by-product during the production of aluminum hydroxide from bauxite ore. In this study the red mud coagulants were prepared by reacting 100 ml of 5 M H2SO4 solution with 10g of red mud at 85 ℃ or by reacting 100ml of 9M HCl solution with 10g of red mud at 25 ℃. The prepared red mud coagulants were tested for their coagulation performance of pollutants in the municipal and industrial wastewater. In addition, the coagulation performance was compared with that of a commercially available coagulant (FeCl3). As a result, the red mud coagulants were found to have a good removal efficiency of pollutants in the municipal wastewater (turbidity, phosphate phosphorus) and in the plating wastewater (turbidity, Pb(2+), Cd(2+), Cu(2+), Zn(2+), Cr(3+)). In the experiment to remove COD in the petrochemical wastewater, the COD removal efficiency by the red mud coagulants was a little poor, but it was better than that by FeCl3.

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  Cite this article

[IEEE Style]

L. JR, H. IG, B. JH, "Development of the Inorganic Coagulants Using Red Mud and Evaluation of Its Coagulation Performance," Clean Technology, vol. 8, no. 2, pp. 85-92, 2002. DOI: .

[ACM Style]

Lee JR, Hwang IG, and Bae JH. 2002. Development of the Inorganic Coagulants Using Red Mud and Evaluation of Its Coagulation Performance. Clean Technology, 8, 2, (2002), 85-92. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

한국연구재단 등재학술지