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The Study on Treatment of Waste Water Containing Cr6+ by Roasted Pyrite
Author(s): LUO Hui-hua, CHENG Jing, LIU Peng, XIE Jian-feng
Pages: 62-
64
Year: 2007
Issue:
10
Journal: CHEMISTRY & BIOENGINEERING
Keyword: 黄铁矿; 含铬废水; 废水处理;
Abstract: 天然黄铁矿对废水中Cr6+的去除能力较低,通过焙烧之后,产生大量的还原性物质,表现出较强的还原性,能有效还原废水中的Cr6+成Cr3+,沉淀于黄铁矿的表面.考察了焙烧温度、焙烧时间、焙烧黄铁矿的用量以及处理时间对焙烧黄铁矿去除废水Cr6+效果的影响.结果表明,焙烧后,黄铁矿去除Cr6+能力提高到6~7 mg·g-1.
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