电絮凝/电氧化法处理生活污水中污染物质的研究
发布时间：2021-05-06 05:38
污水中存在过量的磷酸盐与氨氮将会加剧水体富营养化,导致藻类无法遏制的增长。这一现象将对湖泊、河流、水库以及沿海地区产生影响,也是近几年造成严重的水污染问题原因之一。因此,去除磷酸盐与氨氮对于控制富营养化是十分必要的。本研究的目的是为了优化电絮凝方法以提高去除模拟污水中磷、氨氮以及化学需氧量的效率并将其应用于实际污水处理。本研究分两个阶段进行:第一阶段采用铁、铝电极进行电化学除磷。在这一阶段中考察了电极间距、初始p H值、初始浓度、电流密度、COD、氨氮和氯化钠添加量等因素的影响。在电极间距分别为1cm、2cm和5cm时,磷的去除率分别为92.2%、92.0%以及89.0%。对于p H值的研究结果发现,当p H等于3时磷的去除效果最好,但是为了避免过酸的环境,我们考虑适宜p H为5,且在此p H下除磷效率在55分钟时可达到89.2%。同时,较小的初始浓度下除磷效率随处理时间延长可提升至93.0%,并且当电流密度从8.68 m A/cm2升至13.88 m A/cm2时,除磷效率相应地从61.0%增加到89.2%。此外,实验结果发现氨氮和COD的增加会使除磷效率微增,从89.2%升至91....
【文章来源】：中国地质大学(北京)北京市 211工程院校 教育部直属院校
【文章页数】：143 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 Sources of phosphorus in wastewater
1.1.1 Discharge due to household laundry detergents and its structure in municipal wastewater
1.1.2 Discharge linked to human metabolism and its structure in municipal wastewater
1.1.3 Discharge due to detergents household dishwashers and its structure in municipal wastewater
1.2 Basic control of phosphorus
1.3 Forms of phosphorus in wastewater
1.3.1 Phosphorus compounds in aqueous solution
1.3.2 Hydrolysis of phosphorus compound
1.3.3 Hydrolysis of low- weight polyphosphates
1.3.4 Hydrolysis of chain high – weight polyphosphate
1.3.5 Hydrolysis of cyclic metaphosphate
1.4 Sources of nitrogen from wastewater
1.5 Forms of nitrogen
1.6 Wastewater treatment technologies
1.6.1 Physical and chemical phosphorus removal
1.6.2 Phosphorus removal by chemical precipitation
1.6.3 Biological phosphorus removal
1.6.4 Influence of parameters of treatment management
1.6.5 Interactions between biological mechanisms and physico-chemical
1.6.6 Nitrogen treatment
1.6.7 Electrocoagulation treatment
1.6.8 Electro-oxidation
1.6.9 Purpose and significance of this study
1.6.10 Innovation
1.6.11 Diagram of the contents of the study
Chapter 2 Optimization of phosphorous by electrocoagulation
2.1 Introduction
2.2 Materials and Methods
2.2.1 Wastewater
2.2.2 Apparatus
2.2.3 Experiment methods
2.2.4 Description of analytical tools and measurements
2.3 Result and Discussion
2.3.1 Phosphorus removal with iron electrode
2.3.2 Phosphorus removal by electrochemical using aluminum plate
2.3.3 Efficiency between Fe and Al electrode on phosphorus removal
2.4 Conclusion
Chapter 3 Electro-oxidation removal of ammonium using Cu, Fe and Cu/Zn
3.1 Introduction
3.2 Materials and Methods
3.2.1 Wastewater
3.2.2 Apparatus
3.2.3 Experiment methods
3.2.4 Analysis
3.3 Results and Discussion
3.3.1 Performance removal of ammonium without NaCl
3.3.2 Performance of ammonium removal with NaCl
3.3.3 Effect of temperature
3.3.4 Treatment of real wastewater under optimal conditions
3.3.5 Comparison among the electrodes
3.3.6 Degradation kinetic of NH4+-N
3.4 Conclusion
Chapter 4 Real wastewater treatment by electrochemical Method
4.1 Introduction
4.2 Materials and Methods
4.2.1 Wastewater
4.2.2 Apparatus
4.2.3 Experiment methods
4.3 Results and Discussion
4.3.1 Fe electrode
4.3.2 Cu electrode
4.4 Conclusion
Chapter 5 Conclusion and Recommendations
5.1 Conclusion
5.2 Recommendations
References
Published in International Scientific Journals indexed
【参考文献】：
期刊论文
[1]Electrochemical oxidation of ammonia-containing wastewater using Ti/RuO2-Pt electrode[J]. Wei-wu HU1,2,Bin GONG3,Chuan-ping FENG1 1.School of Water Resources and Environment,China University of Geosciences(Beijing),Beijing 100083,P.R.China 2.Journal Center of China University of Geosciences(Beijing),Beijing 100083,P.R.China 3.Institute of Eco-environment,Chinese Research Academy of Environmental Sciences,Beijing 100012,P.R.China. Water Science and Engineering. 2009(04)
本文编号：3171343
【文章来源】：中国地质大学(北京)北京市 211工程院校 教育部直属院校
【文章页数】：143 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 Sources of phosphorus in wastewater
1.1.1 Discharge due to household laundry detergents and its structure in municipal wastewater
1.1.2 Discharge linked to human metabolism and its structure in municipal wastewater
1.1.3 Discharge due to detergents household dishwashers and its structure in municipal wastewater
1.2 Basic control of phosphorus
1.3 Forms of phosphorus in wastewater
1.3.1 Phosphorus compounds in aqueous solution
1.3.2 Hydrolysis of phosphorus compound
1.3.3 Hydrolysis of low- weight polyphosphates
1.3.4 Hydrolysis of chain high – weight polyphosphate
1.3.5 Hydrolysis of cyclic metaphosphate
1.4 Sources of nitrogen from wastewater
1.5 Forms of nitrogen
1.6 Wastewater treatment technologies
1.6.1 Physical and chemical phosphorus removal
1.6.2 Phosphorus removal by chemical precipitation
1.6.3 Biological phosphorus removal
1.6.4 Influence of parameters of treatment management
1.6.5 Interactions between biological mechanisms and physico-chemical
1.6.6 Nitrogen treatment
1.6.7 Electrocoagulation treatment
1.6.8 Electro-oxidation
1.6.9 Purpose and significance of this study
1.6.10 Innovation
1.6.11 Diagram of the contents of the study
Chapter 2 Optimization of phosphorous by electrocoagulation
2.1 Introduction
2.2 Materials and Methods
2.2.1 Wastewater
2.2.2 Apparatus
2.2.3 Experiment methods
2.2.4 Description of analytical tools and measurements
2.3 Result and Discussion
2.3.1 Phosphorus removal with iron electrode
2.3.2 Phosphorus removal by electrochemical using aluminum plate
2.3.3 Efficiency between Fe and Al electrode on phosphorus removal
2.4 Conclusion
Chapter 3 Electro-oxidation removal of ammonium using Cu, Fe and Cu/Zn
3.1 Introduction
3.2 Materials and Methods
3.2.1 Wastewater
3.2.2 Apparatus
3.2.3 Experiment methods
3.2.4 Analysis
3.3 Results and Discussion
3.3.1 Performance removal of ammonium without NaCl
3.3.2 Performance of ammonium removal with NaCl
3.3.3 Effect of temperature
3.3.4 Treatment of real wastewater under optimal conditions
3.3.5 Comparison among the electrodes
3.3.6 Degradation kinetic of NH4+-N
3.4 Conclusion
Chapter 4 Real wastewater treatment by electrochemical Method
4.1 Introduction
4.2 Materials and Methods
4.2.1 Wastewater
4.2.2 Apparatus
4.2.3 Experiment methods
4.3 Results and Discussion
4.3.1 Fe electrode
4.3.2 Cu electrode
4.4 Conclusion
Chapter 5 Conclusion and Recommendations
5.1 Conclusion
5.2 Recommendations
References
Published in International Scientific Journals indexed
【参考文献】：
期刊论文
[1]Electrochemical oxidation of ammonia-containing wastewater using Ti/RuO2-Pt electrode[J]. Wei-wu HU1,2,Bin GONG3,Chuan-ping FENG1 1.School of Water Resources and Environment,China University of Geosciences(Beijing),Beijing 100083,P.R.China 2.Journal Center of China University of Geosciences(Beijing),Beijing 100083,P.R.China 3.Institute of Eco-environment,Chinese Research Academy of Environmental Sciences,Beijing 100012,P.R.China. Water Science and Engineering. 2009(04)
本文编号：3171343
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