| 活性炭吸附和两级Fenton氧化组合工艺处理高盐对氨基苯酚生产废水 |
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| 引用本文： | 杨鹏, 张伟军, 刘园园, 王东升, 崔凤国. 活性炭吸附和两级Fenton氧化组合工艺处理高盐对氨基苯酚生产废水[J]. 环境工程学报, 2015, 9(5): 2232-2236. doi: 10.12030/j.cjee.20150533 |
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| 作者姓名： | 杨鹏 张伟军 刘园园 王东升 崔凤国 |
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| 作者单位： | 1. 东北电力大学建筑工程学院, 吉林 132012; 2. 中国科学院生态环境研究中心环境水质学国家重点实验室, 北京 100085 |
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| 基金项目： | 北京市重点实验室科技创新基地培育与发展工程专项项目(Z131109002813040) 国家杰出青年科学专项基金(51025830) 基金委创新研究群体水处理微界面过程项目(51221892) 国家自然科学基金资助项目(51178360) |
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| 摘 要： | 采用活性炭吸附和两级Fenton氧化组合工艺对高盐度对氨基苯酚生产废水进行了处理实验研究。结果表明,pH值对活性炭去除有机物的影响较小。当活性炭投加量为4 g/L时,TOC去除率61%。分级加药可以有效提高Fenton氧化对有机物的去除效率。在温度为25℃、pH为3、30% H2O2投加量为3%(V/V)、Fe2+/H2O2摩尔比为0.05时,两级Fenton氧化处理后,出水TOC降至150 mg/L以下。此外,Fenton氧化后形成氢氧化铁污泥颗粒粒径为4.5 μm,经过聚丙烯酰胺(PAM)絮凝之后,污泥的粒径明显增加,过滤特性改善。PAM絮凝效果依赖于溶液的pH值,当pH超过10后会失去作用,故在使用过程中需要严格控制溶液的pH值。
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| 关 键 词： | 高盐废水 活性炭 Fenton氧化 化学絮凝 |
| 收稿时间： | 2014-06-28 |
Treatment of wastewater with high salinity from p-aminophenol production by combined adsorption and two-staged Fenton oxidation |
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| Yang Peng, Zhang Weijun, Liu Yuanyuan, Wang Dongsheng, Cui Fengguo. Treatment of wastewater with high salinity from p-aminophenol production by combined adsorption and two-staged Fenton oxidation[J]. Chinese Journal of Environmental Engineering, 2015, 9(5): 2232-2236. doi: 10.12030/j.cjee.20150533 |
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| Authors: | Yang Peng Zhang Weijun Liu Yuanyuan Wang Dongsheng Cui Fengguo |
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| Affiliation: | 1. School of Civil and Architecture Engineer, Northeast Dianli University, Jilin 132012, China; 2. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China |
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| Abstract: | Combination of activated carbon adsorption and two-staged Fenton oxidation was applied to treat high salinity p-aminophenol production wastewater. The results indicated that pH has rather limited effect on removal of organic substances by activated carbon adsorption. When dosage of activated carbon was 4 g/L, 61% of TOC was removed. Organic removal efficiency of Fenton oxidation was greatly enhanced by two-staged reaction mode. TOC in effluent was reduced to below 150 mg/L, when reaction temperature, pH, 30% H2O2 dosage, Fe2+/H2O2 molar ratio were 25℃, 3, 3%(V/V), 0.05, respectively. The particle size of Fenton sludge was approximately 4.5 μm and increased significantly after PAM flocculation. However, PAM flocculation process was strongly dependent on solution pH, and PAM didn't work at pH above 10. Consequently, the solution pH needed to be prudently controlled in practical application. |
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| Keywords: | high saline wastewater activated carbon Fenton oxidation chemical flocculation |
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