| 制革工业污泥中Cr~(3+)的回收试验 |
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| 引用本文： | 胡明成. 制革工业污泥中Cr~(3+)的回收试验[J]. 工业用水与废水, 2003, 34(2): 40-42 |
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| 作者姓名： | 胡明成 |
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| 作者单位： | 桂林电子工业学院,广西,桂林,541004 |
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| 基金项目： | 2002年桂林电子工业学院基金资助项目(ZL0138) |
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| 摘 要： | 对制革工业污泥中Cr回收与再利用进行了试验。试验表明:Cr的总回收率的高低主要决定于Cr3+的氧化是否彻底,在n(H2O2):n(Cr3+)为7.5,pH=10,温度为60℃以及反应时间为30min的条件下,污泥中Cr3+氧化率接近90%,总回收率可以达到80%以上。
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| 关 键 词： | 制革污泥 污泥处理 金属铬 铬回收 |
| 文章编号： | 1009-2455(2003)02-0040-03 |
| 修稿时间： | 2002-08-13 |
A Test of Recovery of Cr3+ in Sludge from Tanneries |
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| HU Ming cheng. A Test of Recovery of Cr3+ in Sludge from Tanneries[J]. Industrial Water & Wastewater, 2003, 34(2): 40-42 |
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| Authors: | HU Ming cheng |
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| Abstract: | The recovery and reuse of Cr3+in the sludge from tanneries were tested. The results showed: the total recovery rate of Cr3+depended largely on whether the oxidation of Cr3+was sufficient or not. When n(H2O2)∶n(Cr3+) was 7.5, pH=10, temperature was 60 ℃and reaction time was 30 min, the oxidation rate of the Cr3+in the sludge was close to 90%and the total recovery rate was over 80%. |
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| Keywords: | sludge from tannery sludge treatment metal chromium chromium recovery |
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