Chiou Chyow-San, Chang Chiung-Fen, Chang Chang-Tang, Shie Je-Lueng, Chen Yi-Hung
Department of Environmental Engineering, National I-Lan University, 1, Sec. 1, Shen-Lung Road, I-Lan 260, Taiwan.
Chemosphere. 2006 Feb;62(5):788-95. doi: 10.1016/j.chemosphere.2005.04.072. Epub 2005 Jun 20.
Basic oxygen furnace slag (BOF slag) is a solid waste arisen from the steel making process. FeO is one of the major components of BOF slag. The FeO-containing property of BOF slag makes it possible to catalyze the Fenton reaction. Reactive Black 5 (RB5) dye is chosen as the target compound in this study. This study has investigated the catalytic performance of BOF slag on the Fenton reaction to decompose RB5 in aqueous solution. A first-order kinetic model with respect to TOC was adopted to explain the mineralization of RB5 by the H(2)O(2)/BOF slag process. The experimental results in this study suggested that dosage with 1.49 x 10(-4)M min(-1) H(2)O(2) and 12.5 g l(-1) BOF slag in the solution at pH 2 provided the optimal operation conditions for the mineralization of RB5 yielding a 51.2% treatment efficiency at 100 min reaction time, and complete decoloration can be achieved within 30 min reaction time. The H(2)O(2)/Fe(2+) ratio was then determined to be 6.06:1.
碱性氧气转炉炉渣（BOF渣）是炼钢过程产生的一种固体废弃物。FeO是BOF渣的主要成分之一。BOF渣的含铁氧化物特性使其能够催化芬顿反应。本研究选用活性黑5（RB5）染料作为目标化合物。本研究考察了BOF渣对芬顿反应分解水溶液中RB5的催化性能。采用关于总有机碳（TOC）的一级动力学模型来解释H₂O₂/BOF渣工艺对RB5的矿化作用。本研究的实验结果表明，在pH值为2的溶液中，加入1.49×10⁻⁴M min⁻¹的H₂O₂和12.5 g l⁻¹的BOF渣，为RB5的矿化提供了最佳操作条件，在100分钟反应时间内处理效率达到51.2%，并且在30分钟反应时间内可实现完全脱色。然后确定H₂O₂/Fe²⁺的比例为6.06:1。
