| 超声波强化制革铬鞣废水处理 |
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| 引用本文： | 方建德,窦秀冬,郭振仁,张光明,张锡辉. 超声波强化制革铬鞣废水处理[J]. 中国皮革, 2003, 32(15): 4-7 |
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| 作者姓名： | 方建德 窦秀冬 郭振仁 张光明 张锡辉 |
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| 作者单位： | 1. 华南环境科学研究所,广州,510655
2. 清华大学深圳研究生院,深圳,518057 |
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| 基金项目： | ARRPET项目“铬鞣废液处理技术的改进”资助 |
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| 摘 要： | 利用超声波强化铬鞣废水的化学沉淀处理 ,考察了超声波作用时间、强度、施加方式对废水中有机物、铬、SS的去除以及铬泥沉降性能的影响。采用以CaO为主的混合药剂对铬鞣废水进行处理 ,Cr去除率达到 99%以上 ,SS和COD的去除率分别为 84 %和 4 8%。在加入碱剂后施加 2min、0 12W/cm3的超声波处理 ,可以将铬泥沉降时间从 3h缩短到 1h ,所得铬泥的体积也有所下降 ,其他性质基本不变。而不适当的超声处理却会恶化处理效果。加药时配合超声波对出水水质影响不大
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| 关 键 词： | 超声波 铬鞣废水 化学沉淀 铬泥 |
| 修稿时间： | 2003-05-13 |
Ultrasonic enhancement of chrome tanning wastewater treatment |
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| Fang Jiande ,Dou Xiudong ,Guo Zhenren ,Zhang Guangming ,Zhang Xihui. Ultrasonic enhancement of chrome tanning wastewater treatment[J]. China Leather, 2003, 32(15): 4-7 |
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| Authors: | Fang Jiande Dou Xiudong Guo Zhenren Zhang Guangming Zhang Xihui |
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| Affiliation: | Fang Jiande 1,Dou Xiudong 1,Guo Zhenren 1,Zhang Guangming 2,Zhang Xihui 2 |
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| Abstract: | Ultrasound was employed to enhance the chemical precipitation of chromium-contained tannery wastewater. The effects of sonication duration, power density, and application time on the effluent and sludge were investigated. The results showed that an alkali mixture based on CaO could remove 99% of Cr, 84% of SS and 48% of COD. Sonication for 2 minutes at 0 12 W/cm 3 could shorten sedimentation time from 3h to 1h with less sludge. However, improper treatment deteriorated the process. Insignificant impact on effluent quality was observed. |
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| Keywords: | ultrasound chrome tanning wastewater chemical precipitation Cr sludge |
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