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首页> 外文会议>2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring >Steel Slag as Multi-functional Material for Removal of Heavy Metal Ions in Wastewater
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Steel Slag as Multi-functional Material for Removal of Heavy Metal Ions in Wastewater

机译：钢渣作为去除废水中重金属离子的多功能材料

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Removal of Cu2+, Cd2+, Pb2+ and Zn2+ in wastewater was investigated using steel slag as a treatment material£¬andthen mechanism of removal was discussed according to main crystalline phases in steel slag and Zeta potential of steel slag. The results showed the steel slag was a very suitable multi-functional material for the treatment of wastewater containing Zn2+, Cu2+, Cd2+ and Pb2+. Under treatment conditions of the slag size of -1.0+0.5mm, slag usage of 30 g/Land stirring speed of 150rpm, initial wastewater pH value 3, reaction time of 30 min, the removal rate of Zn2+, Cu2+, Cd2+and Pb2+ were 99.24%, 99.08%, 98.75% and 98.73%, respectively. The residual concentration of Zn2+, Cu2+, Cd2+and Pb2+ were reduced to 0.19mg/L, 0.23mg/L, 0.32mg/L and0.32mg/L from 25 mg/L concentration each in multi-metal wastewater respectively, meeting the requirements of GB8978-1996 ¡° Integrated wastewater discharge standard¡±.Precipitation and adsorption were considered to be two important contributions for the removal of Cu2+, Cd2+, Pb2+and Zn2+ in multi-metal wastewater using steel slag particles.
机译：使用钢渣研究废水中的除去Cu 2 +，CD2 +，Pb2 +和Zn2 +作为处理材料，根据钢渣和钢渣的Zeta电位的主要结晶相，讨论了去除机制。结果表明，钢渣是一种非常合适的多功能材料，用于处理含有Zn2 +，Cu2 +，CD2 +和PB2 +的废水。在治疗条件下，炉渣尺寸为-1.0 + 0.5mm，渣用量为30克/陆搅拌速度为150rpm，初始废水pH值3，反应时间为30分钟，除去Zn2 +，Cu2 +，CD2 +和Pb2 +的去除率分别为99.24％，99.08％，98.75％和98.73％。 Zn2 +，Cu2 +，CD2 +和Pb2 +的残留浓度分别将浓度降至0.19mg / L，0.23mg / L，0.32mg / L和0.32mg / L和0.32mg / L，分别为25mg / L浓度，分别为多金属废水，满足要求GB8978-1996°综合废水排放标准±.2。浸润和吸附被认为是使用钢渣颗粒在多金属废水中除去Cu2 +，CD2 +，Pb2 +和Zn2 +的两个重要贡献。

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