| 纳米Ni/Fe用于去除染料生产废水二级生物处理出水中AOX和色度的研究 |
| 摘要点击 2606 全文点击 1751 投稿时间：2015-07-09 修订日期：2015-09-30 |
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| 中文关键词 纳米Ni/Fe 染料生产废水 可吸附性有机卤代物 还原脱卤 色度 |
| 英文关键词 nanoscale Ni/Fe chemical dyestuff wastewater absorbable organic halogens (AOX) reductive dehalogenation chroma |
| 作者 | 单位 | E-mail | | 舒小铭 | 常州大学环境与安全工程学院, 常州 213164
浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 | 1159568779@qq.com | | 徐灿灿 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 | | | 刘锐 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 | liuruitsinghuazj@gmail.com | | 赵远 | 常州大学环境与安全工程学院, 常州 213164 | | | 陈吕军 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006
清华大学环境学院, 北京 100084 | chenlj@tsinghua.edu.cn |
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| 中文摘要 |
| 用纳米Ni/Fe材料深度处理染料生产废水的生物处理出水,考察了不同Ni负载量(质量分数0~5%)、 废水初始pH值(4.1~10.0)、 Ni/Fe投加量(1~5 g ·L-1)、 反应时间(0.5~96 h)下对可吸附性有机卤代物(absorbable organic halogens, AOX)的去除率和脱色率. 结果表明,AOX和色度去除率随Ni负载量的增加先升高后减少,随废水初始pH值的降低和Ni/Fe投加量的增加而持续提高. 最优化条件为Ni负载量1%、 废水初始pH 4.1和Ni/Fe投加量3 g ·L-1,该条件下AOX和色度的24 h去除率分别为29.2%和79.6%,96 h去除率分别为50.6%和80.7%. GC-MS分析表明经材料处理后废水中氯代苯胺类、 对硝基苯胺、 4-甲氧基-2-硝基苯胺及卤代烷烃等有毒有害物质得到高效去除. |
| 英文摘要 |
| Nanoscale Ni/Fe was applied to biologically treated effluent of chemical dyestuff wastewater. The removal rates of absorbable organic halogens(AOX)and chroma were investigated at different Ni loadings (0-5%), initial wastewater pH (4.1-10.0), Ni/Fe dosage (1-5 g ·L-1) and reaction time (0.5-96 h). The results showed that the removal rates of AOX and chroma firstly increased and then decreased with the increase of the Ni loading, while continuously increased with the decrease of the initial wastewater pH and the increase of Ni/Fe dosage. The optimal condition was Ni loading of 1%, initial wastewater pH of 4.1 and Ni/Fe dosage of 3 g ·L-1, under which 29.2% of AOX and 79.6% of chroma were removed after 24 h reaction, and 50.6% of AOX and 80.7% of chroma were removed after 96 h reaction. GC-MS analysis revealed that toxicants such as chlorinated anilines, p-nitroaniline, 4-methoxy-2-nitroaniline and halogenated hydrocarbons were efficiently removed. |
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