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 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. 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 Industrial Zone, wastewater, treatment, pollution, discharge, industry, domestic, etc. Number of pages: 58 Date of submission: January 15, 2015 ii ACKNOWLEDGEMENT I would like to express my gratitude to my supervisors, Assoc. 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 TABLE OF CONTENT List of Tables. 1 List of Figures.
2 List of Abbreviations. Aims of the study. Learning and scientific research significance. Water quality assessment.
Water resources and situation of water pollution in the world. Studies on water quality in Vietnam. Study area review. Natural and socio-economic conditions of Hoa Binh City.
Socio-economic conditions. General assessment of review. Object and scope of study. Location and time of study.
Basic characteristics of Da River Left-bank Industrial Zone – Hoa Binh City. Assessment of current status of water quality of the industry. Proposal of a number of solutions to reduce pollution and effects of wastewater to surrounding environment. Secondary data collection method.
Methods of getting, maintaining and analyzing samples. Question and Interview methods. Analyzing, synthesizing and assessing data methods. Overview of Da River Left-bank Industrial Zone.
Status of operation and implementation of environmental protection of some companies in Da River Left-bank Industrial Zone. The situation of wastewater treatment of Da River Left-bank Industrial Zone. Assessment of current situation of water in Da River Left-bank Industrial Zone and surrounding areas. Current situation of Da River Left-bank Industrial Zone’s wastewater.
Situation of wastewater of Da River Left-bank Industrial Zone in 2013. Situation of wastewater of Da River Left-bank Industrial Zone in 2014. Assessment of wastewater’s impacts of Da River Left-bank Industrial Zone to local people based on survey. Basic information of investigated subject.
Assessment of wastewater’s impacts of the Industrial Zone to local people. Recommendation of solutions to overcome and minimize water pollution of Da River Let-bank Industrial Zone. DISCUSSION AND CONCLUSION. 65 vi 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 1 LIST OF TABLES Table 1: Distribution of land use in Hoa Binh City in 2014.
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 2 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 3 PART I INTRODUCTION 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, 4 silicone rubber; spare parts for cars and motorcycles; automobile engine, sanitary ware products; hardware assessories, barcode printers, beer, sugar, etc. Due to the versatility of the Industrial Zone, wastewater is harmful and impacts on the environment not only the Industry Zone but also surrounding area.
Derived from the reality, through the agreement of Dean of Environmental Faculty and International Training and Development Center - Thai Nguyen University of Agriculture and Forestry, the study researched on subject: “Assessment of wastewater of Da River Left-bank Industrial Zone on the 2013 – 2014 periods”. 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 to the environment. Thus, a number of solutions are proposed to mitigate the effects of wastewater to the environment surrounding the Industrial Zone. Aims of the study - Learn the basic characteristics of Da River Left-bank Industrial Zone - Learn and assess the situation of water quality of the Industrial Zone.
- Propose solutions to reduce water pollution of the Industrial Zone. Research questions - What is an overview of Da River Left-bank Industrial Zone? - What is current situation of water of the Industrial Zone? - What can human do to reduce water pollution of the Industrial Zone and its impacts to human and environment? 1. Practical significance 5 Through the study of wastewater situation of the Industrial Zone, it is significant to know strengths, weaknesses, challenges and shortcomings in the wastewater management and treatment in order to find the solutions for environmental protection in accordance with the conditions of the Industrial Zone, allowing better environmental management. Learning and scientific research significance - Help students apply theory into reality, practice the data synthesis and analysis skills.
- To be a favorable condition for acquiring and learning from practical experience. At the same time, enhance practical knowledge; add more materials for learning and researching after graduation. - Strengthen based knowledge and specialized knowledge to serve environmental work. - The success of this study is a basis to improve working methods scientifically and to help students synthesizing and arranging the schedule and timeline reasonable.
Limitations - Due to limitation of time and resources, this study mainly focuses on the water pollution in Da River Left-bank Industrial Zone. - The survey is examined is relatively small, the findings cannot be generalized to the broader community. - The wastewater data is only taken from 02 companies in the Industrial Zone, it would not achieve absolute accuracy for the Industrial Zone. - The measurement and sampling time is only done 2 times/ year.
So, the samples cannot reflect the entire of pollution. 6 - This study solely mentions to the wastewater of the Industrial Zone in short term of the 2013-2014 periods. 7 PART II LITERATURE REVIEW 2. Theoretical background - Vietnam’s Strategic Environmental Protection Plan towards 2010 and orientation to 2020, - Environmental Protection Law No.
55/2014/ QH13 passed by the 13th National Assembly on June 23, 2014. - Water Resources Act, June 2012 - Decree No.