Removal of Cu, Ni and Zn from Wastewaters by the Ferrite Process
Removal of Cu, Ni and Zn from Wastewaters by the Ferrite Process
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DOI：
10.1080/09593332008616891
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发表时间：
1999-09
影响因子：
2.8
通讯作者：
B. Demirel;O. Yenigün;M. Bekbolet
中科院分区：
文献类型：
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作者：
B. Demirel;O. Yenigün;M. Bekbolet
研究了铁氧体工艺在工业废水处理中的适用性。初步实验进行了合成废水样品，轴承铜，镍，锌阳离子，以确定最佳的实验条件，提供铁氧体的形成和满意的金属去除率从解决方案。然后将这些条件应用于具有相同重金属阳离子的铜工业废水，具有更高的浓度。实验结果表明，在pH 11、50°C、1000 ml min-1曝气和2小时氧化下，铜和锌的去除率约为100%，镍的去除率为99.0%，对于这种特定的废水，Cu 2+：Fe 2 +=1：4，Ni 2+：Fe 2 +=1：9; Zn 2+：Fe 2 +=1：10。以及pH值，接触时间和溶液中的Fe 2+浓度也显着影响铁氧体的形成，从而去除金属的效率。只要满足最佳条件，铁氧体工艺可成功地应用于重金属的去除。
Applicability of the ferrite process in industrial wastewater treatment was investigated in this study. Preliminary experiments were carried out on synthetic wastewater samples, bearing copper, nickel, and zinc cations, to determine the optimum experimental conditions providing ferrite formation and satisfactory metal removal rates from solutions. These conditions were then applied to copper industry wastewater with the same heavy metal cations, with higher concentrations. Experiments resulted in about 100 % removal of both copper and zinc, and 99.0 % removal of nickel at pH 11, 50°C, 1000 ml min−1 aeration, and 2 hours of oxidation, with the ratios of Cu2+:Fe2+=1:4, Ni2+:Fe2+=1:9; and Zn2+:Fe2+=1:10 for this particular wastewater. As well as pH, contact time and Fe2+ concentration in solution were also significant in affecting ferrite formation and hence removal efficiencies of metals. Providing that the optimum conditions are satisfied, the ferrite process can successfully be applied to remove heavy met...