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车冉, 郝志, 叶正芳. 减压蒸馏耦合微电解处理六硝基二段洗水[J]. 环境工程学报, 2013, 7(4): 1405-1410.
引用本文: 车冉, 郝志, 叶正芳. 减压蒸馏耦合微电解处理六硝基二段洗水[J]. 环境工程学报, 2013, 7(4): 1405-1410.
shu
Che Ran, Hao Zhi, Ye Zhengfang. Treatment of hexanitrostilbene wastewater by vacuum distillation coupling in micro-electrolysis[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1405-1410.
Citation: Che Ran, Hao Zhi, Ye Zhengfang. Treatment of hexanitrostilbene wastewater by vacuum distillation coupling in micro-electrolysis[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1405-1410.
shu

减压蒸馏耦合微电解处理六硝基二段洗水

  • 1.

    北京大学环境工程系,北京,100871

  • 2.

    北京大学深圳研究生院环境与能源学院,深圳 518055

  • 3.

    中国北方工业集团公司,北京 100821

  • 基金项目:

    "十一五"国防科技基础产品创新计划火炸药专项

  • 中图分类号: X703.1

Treatment of hexanitrostilbene wastewater by vacuum distillation coupling in micro-electrolysis

  • 1.

    Department of Environmental Engineering, Peking University, Beijing 100871, China

  • 2.

    School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China

  • 3.

    China North Industries Group Corporation, Beijing 100821, China

  • Fund Project:

摘要

  • 摘要: 通过对六硝基茋(HNS)生产过程中第二段工艺的产品洗涤废水进行水质分析,针对该段废水含有大量吡啶和多种溴代和硝基芳香类化合物的特点,探究了减压蒸馏耦合锌碳微电解法处理二段洗水的效果并优化工艺参数。结果显示,70℃条件下,二段洗水蒸馏至原体积的86.9%时,蒸馏剩余废水TOC去除率为44%,并且此前收集的馏分中吡啶浓度为10%~31.9%(V/V)。减压蒸馏工艺起到收集吡啶同时降低废水TOC的双重作用。减压蒸馏后,残留在废水中的有机物以溴代和硝基芳香化合物为主,采用微电解工艺,其条件优化实验的结果显示,在废水初始pH=1.0,锌投加量为25 g/L,锌碳投加比为1∶1,反应60 min后,废水TOC去除率为33%,采用多级微电解工艺可提高去除效果。
    Abstract: The hexanitrostilbene (HNS) wastewater quality was analyzed, which was the product washing wastewater from the second HNS producing process. The result showed that it contained massive pyridine and variety of bromo and nitro-aromatic compounds. The treatment of HNS wastewater by vacuum distillation coupling in micro-electrolysis was carried out, and the process parameters were optimized. When it was distillated at 70℃, the TOC removal rate was 44% when the volume rate of the residual liquid was reduced to 86.9% of the original volume of the wastewater. And the pyridine concentration of the distillate collected before was between 10%~31.9%(V/V). The vacuum distillation could collect pyridine and reduce the TOC in the wastewater at the same time. After vacuum distillation, the majority of the bromo and nitro-aromatic compounds were left in the residual liquid, and it was treated by micro-electrolysis. The TOC removal efficiency of the wastewater reached 33% under the condition of a 25 g/L zinc dosage, 1∶1 mass ratio of zinc and active carbon, after 60 min reaction when its initial pH was 1.0. The quality of effluent could be improved after multi-stage micro-electrolysis process.
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出版历程
  • 收稿日期:  2012-03-27
  • 刊出日期:  2013-04-09
车冉, 郝志, 叶正芳. 减压蒸馏耦合微电解处理六硝基二段洗水[J]. 环境工程学报, 2013, 7(4): 1405-1410.
引用本文: 车冉, 郝志, 叶正芳. 减压蒸馏耦合微电解处理六硝基二段洗水[J]. 环境工程学报, 2013, 7(4): 1405-1410.
shu
Che Ran, Hao Zhi, Ye Zhengfang. Treatment of hexanitrostilbene wastewater by vacuum distillation coupling in micro-electrolysis[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1405-1410.
Citation: Che Ran, Hao Zhi, Ye Zhengfang. Treatment of hexanitrostilbene wastewater by vacuum distillation coupling in micro-electrolysis[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1405-1410.
shu

减压蒸馏耦合微电解处理六硝基二段洗水

  • 1.  北京大学环境工程系,北京,100871
  • 2.  北京大学深圳研究生院环境与能源学院,深圳 518055
  • 3.  中国北方工业集团公司,北京 100821
  • 收稿日期:  2012-03-27
基金项目:

"十一五"国防科技基础产品创新计划火炸药专项

摘要: 通过对六硝基茋(HNS)生产过程中第二段工艺的产品洗涤废水进行水质分析,针对该段废水含有大量吡啶和多种溴代和硝基芳香类化合物的特点,探究了减压蒸馏耦合锌碳微电解法处理二段洗水的效果并优化工艺参数。结果显示,70℃条件下,二段洗水蒸馏至原体积的86.9%时,蒸馏剩余废水TOC去除率为44%,并且此前收集的馏分中吡啶浓度为10%~31.9%(V/V)。减压蒸馏工艺起到收集吡啶同时降低废水TOC的双重作用。减压蒸馏后,残留在废水中的有机物以溴代和硝基芳香化合物为主,采用微电解工艺,其条件优化实验的结果显示,在废水初始pH=1.0,锌投加量为25 g/L,锌碳投加比为1∶1,反应60 min后,废水TOC去除率为33%,采用多级微电解工艺可提高去除效果。

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