硝基苯甲醚的生物强化处理

摘要本论文阐述了2,4-二硝基苯甲醚生产废水（主要物质为2,4-二硝基苯甲醚、2,4-二硝基氯苯和2,4-二硝基苯酚）的性质及危害，并总结了现有常用处理方法及其特点。通过实验确定了“零价铁（ZVI）/上流式厌氧反应器(UASB)-好氧处理”耦合工艺对2,4-二硝基苯甲醚生产废水进行处理的可行性，分析了2,4-二硝基苯甲醚、2,4-二硝基氯苯和2,4-二硝基苯酚在整个生物降解体系中的降解途径，并对该工艺的处理效果进行了评价。研究发现，ZVI/UASB将废水中的硝基芳香族化合物还原为苯胺类物质，大大改善了废水的可生化性。处理工艺体系系统稳定后，出水的COD在400mg/L左右、去除率达到96%以上。实验结果表明“ZVI/UASB-好氧处理”耦合工艺对2,4-二硝基苯甲醚生产废水有较为理想的生化性改善和降解的效果。63810

毕业论文关键词 2,4-二硝基苯甲醚 2,4-二硝基氯苯2,4-二硝基苯酚零价铁还原

毕业设计说明书（论文）外文摘要

Title Bioaugmentation Technology of 2,4-Dinitroanisole

Abstract This paper described the nature and hazards of 2,4-Dinitroanisole wastewater and summarizes the treatment methods and their characteristics. The main substance of 2,4-Dinitroanisole wastewater were 2,4-Dinitroanisole 2,4-Dinitrochlorobenzene and 2,4-Dinitrophenol.The feasibility of treatment method of the 2,4-Dinitroanisole wastewater by ZVI/UASB-Aerobic method was proved by experiments. And analysis the degradation pathway of 2,4-Dinitroanisole 2,4-Dinitrochlorobenzene 2,4-Dinitrophenol in the biodegradation system, evaluation the treatment effect of the process. It was founded that the nitro groups in the aromatic ring were reduced to amine with ZVI/UASB, the biodegradability of the wastewater was improved largely．After the process system was stable, the COD of effluence was 400mg/L and COD removal rate was more than 96%.The results of experiment indicated that ZVI/UASB-Aerobic method response to 2,4-Dinitroanisole wastewater could achieved a result with ideal degradation and biological treatability improvement.

Keywords 2,4-Dinitroanisole 2,4-Dinitrochlorobenzene 2,4-Dinitrophenol zero-valent iron reduction

1 引言 1

1.1 芳香族硝基化合物的污染现状 1

1.2 芳香族硝基化合物的处理方法 1

1.3 研究课题的提出 6

1.3.1 课题背景 6

1.3.2 研究思路 7

1.3.3 研究方法 8

1.3.4 研究内容 9

2 实验部分 10

2.1 材料与方法 10

2.1.1 实验仪器与药品 10

2.1.2 模拟废水组成 11

2.2 实验方法 12

2.3 测定和分析方法 13

3 结果与讨论 15

3.1 “ZVI/UASB-好氧处理”耦合工艺的降解途径分析 15

3.1.2 各级反应器出水的紫外分析 15

3.1.2 各级反应器出水的液相及GC-MS分析 15

3.2 “ZVI/UASB-好氧处理”耦合工艺的评价硝基苯甲醚的生物强化处理:http://www.751com.cn/shengwu/lunwen_70584.html