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i THAI NGUYEN UNIVERSITY UNIVERSITY OF AGRICULTURAL AND FORESTRY TRAN THI LAN HUONG TOPIC TITLE ASSESSMENT ON SITUATION OF WASTEWATER OF DA RIVER LEFT BANK INDUSTRIAL ZONE, HOA BINH CITY IN THE 2013 –[.]
THAI NGUYEN UNIVERSITY UNIVERSITY OF AGRICULTURAL AND FORESTRY TRAN THI LAN HUONG TOPIC TITLE: ASSESSMENT ON SITUATION OF WASTEWATER OF DA RIVER LEFT-BANK INDUSTRIAL ZONE, HOA BINH CITY IN THE 2013 – 2014 PERIODS BACHELOR THESIS Study Mode: Full-time Major: Environmental Sciences and Management Faculty: International Training and Development Center Batch: 2010 - 2015 Thai Nguyen, 17/01/2015 i n Thai Nguyen University of Agriculture and Forestry Degree Program Bachelor of Environmental Science and Management Student name Tran Thi Lan Huong Student ID DTN 1053180056 Thesis title Assessment of wastewater of Da River Left-bank Industrial Zone - Hoa Binh City on the 2013-2014 period Supervisor(s) Assoc Prof Dr Do Thi Lan MA Truong Thi Anh Tuyet Abstract: The purpose of this study is to assess wastewater of Da River Left-bank Industrial Zone- Hoa Binh City in the 2013-2014 periods The main focus is in two aspects: to assess the status of wastewater treatment of Da River Left-bank Industrial Zone and to propose solutions for decreasing the water pollution Regarding to the state of wastewater treatment, Da River Left-bank Industrial Zone is a place that has largest amount of wastewater discharge in Hoa Binh City In the Industrial Zone, a number of companies discharged wastewater directly into Dung stream (flowing to Da River) an extremely large amount of domestic and industrial wastewater, that seriously exceed the permissible standards Besides, many companies had administrative violations in the discharge of wastewater or did not have enough legal documents following regulation in wastewater management Currently, Da River Left-bank Industrial Zone starts to build the wastewater treatment system in order to have effective wastewater treatment and simple discharge management After assessing the situation in the Industrial Zone, the essential solutions are proposed In term of management, local authorities need to take coercive measures against companies which discharged the untreated or unsatisfactory treated wastewater directly into environment With technological solution, the Industrial Zone has to select appropriate production technologies, innovative technology of wastewater treatment system Overall, the options considered and evaluated in the thesis indicated that Da River Left-bank Industrial Zone can implement those options to prevent and manage the quality of wastewater in order to protect environment in a legal, logical and financially practical way Keywords Number of pages: Date of submission: Industrial Zone, wastewater, treatment, pollution, discharge, industry, domestic, etc 58 January 15, 2015 ii n ACKNOWLEDGEMENT I would like to express my gratitude to my supervisors, Assoc Prof Dr Do Thi Lan and MA Truong Thi Anh Tuyet for their invaluable useful comments, remarks, encouragement and engagement through the learning process of this graduated thesis I sincerely thank the lecturers who enthusiastically imparted useful knowledge on water treatment during the University program to all class attendants I also thank the support of Thai Nguyen University of Agriculture and Forestry, the coordinators and program managers for their support and assistance I am using this opportunity to express my gratitude to my classmates, who supported me throughout this course, by their aspiring guidance, invaluably constructive criticism and friendly advice I am sincerely grateful to them for sharing their truthful and illuminating views on a number of issues related to my thesis Also, I like to thank the participants in my survey, who have willingly shared their precious time during the process of interviewing I would like to thank my loved ones, who have supported me throughout entire process, both by keeping me harmonious and helping me putting pieces together Thank you all very much! Sincerely yours, iii n TABLE OF CONTENT List of Tables List of Figures List of Abbreviations PART I INTRODUCTION 1.1 Rationale 1.2 Definitions 1.3 Aims of the study 1.4 Research questions 1.5 Research significance 1.5.1 Practical significance 1.5.2 Learning and scientific research significance 1.6 Limitations PART LITERATURE REVIEW 2.1 Theoretical background 2.2 Scientific background 2.2.1 Related definitions 2.2.2 Water quality assessment 10 2.3 Empirical background 14 2.3.1 Water resources and situation of water pollution in the world 14 2.3.2 Studies on water quality in Vietnam 15 2.4 Study area review 18 2.4.1 Natural and socio-economic conditions of Hoa Binh City 18 2.4.1.1 Natural conditions 18 iv n 2.4.1.2 Socio-economic conditions 21 2.5 General assessment of review 25 PART III METHODS 26 3.1 Object and scope of study 26 3.2 Location and time of study 26 3.3 Research content 26 3.3.1 Basic characteristics of Da River Left-bank Industrial Zone – Hoa Binh City 26 3.3.2 Assessment of current status of water quality of the industry 26 3.3.3 Proposal of a number of solutions to reduce pollution and effects of wastewater to surrounding environment 26 3.4 Research methods 27 3.4.1 Secondary data collection method 27 3.4.2 Methods of getting, maintaining and analyzing samples 27 3.4.3 Question and Interview methods 29 3.4.4 Analyzing, synthesizing and assessing data methods 29 PART IV RESULTS 30 4.1 Overview of Da River Left-bank Industrial Zone 30 4.1.1 Status of operation and implementation of environmental protection of some companies in Da River Left-bank Industrial Zone 30 4.1.2 The situation of wastewater treatment of Da River Left-bank Industrial Zone 38 4.2 Assessment of current situation of water in Da River Left-bank Industrial Zone and surrounding areas 40 4.2.1 Current situation of Da River Left-bank Industrial Zone’s wastewater 41 4.2.1.1 Situation of wastewater of Da River Left-bank Industrial Zone in 2013 41 v n 4.2.1.2 Situation of wastewater of Da River Left-bank Industrial Zone in 2014 43 4.2.2 Assessment of wastewater’s impacts of Da River Left-bank Industrial Zone to local people based on survey 48 4.2.2.1 Basic information of investigated subject 49 4.2.2.2 Assessment of wastewater’s impacts of the Industrial Zone to local people 49 4.3 Recommendation of solutions to overcome and minimize water pollution of Da River Let-bank Industrial Zone 54 4.3.1 Management solutions 54 4.3.2 Technological solutions 55 PART V DISCUSSION AND CONCLUSION 60 5.1 Discussion 60 5.2 Conclusion 61 REFERENCES 62 APPENDICES 65 vi n LIST OF FIGURES Figure 1: Diagram of wastewater treatment technology of Left Side Da River Industrial Zone .39 Figure 2: Concentration of BOD5, COD and TSS in 2013, 2014 in wastewater at discharged point into environment of wastewater treatment plant - Huu Nghi JSC for Agricultural and Forestry Products .44 Figure 3: The concentration of Absorbable Organic Halogens, 2013 and 2014 in wastewater sample at the discharged point into environment of wastewater treatment system , Huu Nghi JSC for Agricultural and Forestry Products 45 Figure 4: The concentration of BOD5 in 2013 and 2014 in the domestic wastewater sample at the discharged point into environment, R technical research Vietnam Co, Ltd 47 Figure 5: The concentration of Total Coliform in 2013 and 2014 in domestic wastewater at the discharged point into environment, R technical research Vietnam Co, Ltd 48 Figure 6: The proportion of men and women of investigated groups 49 Figure 7: The proportion of careers of investigated groups 49 Figure 8: Diagram of wastewater treatment technology 57 n LIST OF TABLES Table 1: Distribution of land use in Hoa Binh City in 2014 24 Table Fuel and water consumption of some operating companies in Left Side Da River Industrial Zone 31 Table 3: Result of analysis of wastewater samples at discharge point into the environment - Huu Nghi JSC for Agricultural and Forestry Products 41 Table 4: Result of analysis of domestic wastewater sample at discharge point - R technical research Vietnam Co, Ltd in 2013 42 Table 5: The result of analysis of industrial wastewater at discharge point into environment - Huu Nghi JSC for Agricultural and Forestry Products 43 Table 6: The result of analysis of domestic wastewater sample at the discharged point - R technical research Vietnam Co, Ltd in 2014 46 Table 7: The impact of wastewater of the Industrial Zone to agriculture production and the health of people living around there 51 n LIST OF ABBREVIATIONS AND ACRONYMS AOX : Absorbable Organic Halogens BOD : Biochemical Oxygen Demand COD : Chemical Oxygen Demand EPA : Environmental Protection Agency DNRE : Department of Natural Resources and Environment JSC : Joint Stock Company LEP : Law on Environmental Protection MNRE : Ministry of Natural Resource and Environment TSS : Total Suspended Solids VEA : Vietnam Environment Administration n PART I INTRODUCTION 1.1 Rationale Environment is a system of natural and artificial material factors which impact on the survival and the development of humans and animals (Environmental Protection Act, 2014) Those factors are considered as basic components of the environment; they formed and developed under the law of nature One of the most crucial and necessary factors for all life on earth in general and human in particular is water It does not only affect human’s health, dietary needs, daily activities, but it is also a factor to ensure the prosperity of mankind Nowadays, the development of science and technology has accelerated the pace of socio-economic development, creating a giant volume of material goods for meeting the growing demands of human However, the socio-economic development, especially the rapid development of the industry in recent years has discharged a huge amount of wastewater This is the direct cause of the environmental pollution in general and water quality decline in particular, that makes clean water on Earth become increasingly scarce and exhausted As a country with a growing economy, Vietnam has become the heavily polluted water on the world Among them, the Da River Left-bank Industrial Zone which located on Huu Nghi Ward, Hoa Binh City is one of the hot spots of wastewater pollutants, especially industrial wastewater The Industrial Zone is consisted of many companies operating in different fields such as productions of plastic sheet, insulator, plastic tube with hydrocarbon polymer, n ... of Da River Left- bank Industrial Zone- Hoa Binh City in the 2013- 2014 periods The main focus is in two aspects: to assess the status of wastewater treatment of Da River Left- bank Industrial Zone. .. Da River Left- bank Industrial Zone and surrounding areas 40 4.2.1 Current situation of Da River Left- bank Industrial Zone? ??s wastewater 41 4.2.1.1 Situation of wastewater of Da River Left- bank. .. on the 2013 – 2014 periods” 1.2 Definitions This study assesses the status of wastewater of Da River Left- bank Industrial Zone on the 2013 – 2014 periods in order to determine the impact of wastewater