No.71 湿式排煙脱硫廃水からの有害微量元素の除去(灰・微量金属(3))

概要

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The removal of hazardous trace elements, such as Hg, Se, and B, from a flue gas desulfurization wastewater obtained from a pulverized coal combustion system was examined. B and Hg were effectively removed from the wastewater (simulated wastewater) by use of a glucamine type chelate resin or fiver. However, Se was hard to remove from the wastewater by using the adsorption method. The removal of Se from the wastewater by use of TiO_2 photocatalytic reduction was also attempted. Se(VI) in the wastewater was reduced to Se(0) and effectively removed from the wastewater.
2009-11-26