Integrated Management of Environmental and Social Risks Rela
发布时间：2024-03-01 05:07
当今世界各地的水环境污染问题形势严峻,因此,对雅温得市半集中式污水处理厂的修复和新污水处理厂的建设应运而生。然而,雅温得市污水处理厂的处理技术不够成熟且难以掌控,往往对周边环境造成污染甚至破坏。本文经研究发现,主要涉及管理污泥和围栏筛选工作的员工,每人每年的个人风险超额量(EIR)值均超过1.10-6,从而证明了污水处理厂慢性毒性的风险以及员工患癌的可能性。为了未来所有污水处理厂综合风险管理计划的落实,本研究将当地的居民和污水处理厂(WWTP)员工均考虑在内。经调查发现,超过70%的受访者不了解污水处理厂的作用,超过48%的人口对厕所废物管理不善。此外,运用系统故障分析方法(MASM)、科学分析方法和风险评估等方法,表明主要污染来源于污泥,人群为主要污染目标,并且在污水处理厂入口和出口处进行的物理化学分析证实了周边人口的高风险。由于将废水收集到净水设备的过程存在一些障碍,因此,对污水处理厂出口水样处理后进行分析,可以取得较好的结果。证实了出水口前后以及与出水口相连的河道水质污染情况。由于人们抱怨由水质污染导致疾病的发生,还应注意到这种污染会影响地下水和周围的水井水质。在各类污水处理厂的...
【文章页数】：102 页
【学位级别】：硕士
【文章目录】：
ACKNOWLEDGEMENTS
ABSTRACT
摘要
List of Abbreviations
Chapter 1 Introduction
1.1 General issue
1.2 Objectives
Chapter 2 Literature Review
2.1 Definitions of concepts
2.2 Generality on wastewater
2.2.1 Origin and characteristics of wastewater
2.2.2 Sources of pollution
2.2.3 Impact of wastewater on the environment
2.2.4 Impact of wastewater on human health
2.3 General information on purification stations
2.3.1 Operating principle of wastewater treatment plant(WWTP)
2.3.2 Sludge treatment
2.3.3 Micro-pollutants present in the sludge of a wastewater treatment plant(WWTP)
2.4 Generalities on environmental risks
2.4.1 Overview
2.4.2 Definition and classification of risks
2.4.3 Risk factors
2.4.4 The fundamental principles to control the risk
2.5 The purification stations in Cameroon
2.5.1 State of purification stations in Yaoundé
2.5.2 Normative framework of wastewater discharge
Chapter 3 Methodology of Study and State of Place
3.1 Study methodology and material used
3.2 Home structure
3.3 Material resources used
3.4 Presentation of the grand messa wastewater treatment plant
3.5 Presentation of the wastewater treatment plant of the cite-verte
3.5.1 Cite verte wastewater collection and transportation network
3.5.2 Description of the wastewater treatment process
3.6 Advantages and limits of the two sanitation models of the camps sic cite verte and messa
3.7 Diagnosis of equipment upstream of wastewater treatment plants
3.7.1 Inventory of equipment upstream of the MESSA wastewater treatment plant
3.7.2 Structural dysfunction
3.7.3 Functional dysfunction
3.7.4 Inventory of equipment upstream of the CITE VERTE wastewater treatment plant
3.8 Element allowing to characterize the quality of water resulting from the treatment of the treatment plant
Chapter 4 Analysis of results and discussions
4.1 Quality of water discharged into the receiving environment
4.2 Performance of the messa purification station
4.3 Performance of the purification station of the cite-verte
4.4 Evaluation of pollution parameters
4.4.1 Temperature
4.4.2 Hydrogen potential
4.4.3 Suspended material
4.4.4 Biological oxygen demand(BOD5)and chemical oxygen demand
4.4.5 TKN Nitrogen
4.4.6 The conductivity of water
4.5 The classification of water
4.5.1 Water purified by the Messa wastewater treatment plant
4.5.2 Water purified by the CITE- VERTE wastewater treatment plant
4.6 Summary of results and suggestion
4.7 Risk assessment
4.7.1 Qualitative analysis:risks present in the WWTP
4.7.2 Pareto Diagram
4.7.3 Quantitative analysis:risks present in WWTP
4.7.4 Difficulties encountered
4.7.5 Risk classification
4.7.6 Environmental and social management plan summary
Chapter 5 Conclusion
References
Annex
本文编号：3915466
【文章页数】：102 页
【学位级别】：硕士
【文章目录】：
ACKNOWLEDGEMENTS
ABSTRACT
摘要
List of Abbreviations
Chapter 1 Introduction
1.1 General issue
1.2 Objectives
Chapter 2 Literature Review
2.1 Definitions of concepts
2.2 Generality on wastewater
2.2.1 Origin and characteristics of wastewater
2.2.2 Sources of pollution
2.2.3 Impact of wastewater on the environment
2.2.4 Impact of wastewater on human health
2.3 General information on purification stations
2.3.1 Operating principle of wastewater treatment plant(WWTP)
2.3.2 Sludge treatment
2.3.3 Micro-pollutants present in the sludge of a wastewater treatment plant(WWTP)
2.4 Generalities on environmental risks
2.4.1 Overview
2.4.2 Definition and classification of risks
2.4.3 Risk factors
2.4.4 The fundamental principles to control the risk
2.5 The purification stations in Cameroon
2.5.1 State of purification stations in Yaoundé
2.5.2 Normative framework of wastewater discharge
Chapter 3 Methodology of Study and State of Place
3.1 Study methodology and material used
3.2 Home structure
3.3 Material resources used
3.4 Presentation of the grand messa wastewater treatment plant
3.5 Presentation of the wastewater treatment plant of the cite-verte
3.5.1 Cite verte wastewater collection and transportation network
3.5.2 Description of the wastewater treatment process
3.6 Advantages and limits of the two sanitation models of the camps sic cite verte and messa
3.7 Diagnosis of equipment upstream of wastewater treatment plants
3.7.1 Inventory of equipment upstream of the MESSA wastewater treatment plant
3.7.2 Structural dysfunction
3.7.3 Functional dysfunction
3.7.4 Inventory of equipment upstream of the CITE VERTE wastewater treatment plant
3.8 Element allowing to characterize the quality of water resulting from the treatment of the treatment plant
Chapter 4 Analysis of results and discussions
4.1 Quality of water discharged into the receiving environment
4.2 Performance of the messa purification station
4.3 Performance of the purification station of the cite-verte
4.4 Evaluation of pollution parameters
4.4.1 Temperature
4.4.2 Hydrogen potential
4.4.3 Suspended material
4.4.4 Biological oxygen demand(BOD5)and chemical oxygen demand
4.4.5 TKN Nitrogen
4.4.6 The conductivity of water
4.5 The classification of water
4.5.1 Water purified by the Messa wastewater treatment plant
4.5.2 Water purified by the CITE- VERTE wastewater treatment plant
4.6 Summary of results and suggestion
4.7 Risk assessment
4.7.1 Qualitative analysis:risks present in the WWTP
4.7.2 Pareto Diagram
4.7.3 Quantitative analysis:risks present in WWTP
4.7.4 Difficulties encountered
4.7.5 Risk classification
4.7.6 Environmental and social management plan summary
Chapter 5 Conclusion
References
Annex
本文编号：3915466
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