Evaluation of current status of environmental quality in river basin, which flow through thai nguyen

THAI NGUYEN UNIVERSITY

UNIVERSITY OF AGRICULTURAL AND FORESTRY

LY TIEN LOI

EVALUATION OF CURRENT STATUS OF ENVIRONMENTAL QUALITY

IN RIVER BASIN, WHICH FLOW THROUGH THAI NGUYEN CITY,

THAI NGUYEN PROVINCE

BACHELOR THESIS

Study mode : Full time

Major : Environmental Science and Management

Factualy : Advanced Program Education

Batch : 2015 – 2019

Thai Nguyen, 09/2019

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DOCUMENTATION PAGE WITH ABSTRACT

Thai Nguyen University of Agriculture and Forestry

Degree Program Bachelor of Environmental Science and Management

Student name Lý Tiến Lợi

Student ID DTN1554290016

Thesis Title

Evaluation of current status of environmental quality in

river basin, which flow through Thai Nguyen city, Thai

Nguyen province

Supervisor (s) Dr. Nguyen Thanh Hai

Supervisor’s

Signature

Abstract:

Our water environment is increasingly seriously polluted, so the evaluation and

monitoring of river water quality are of great concern. This study aims to assess

the quality of water in Cau River. through Thai Nguyen city on the basis of

applying GIS technology in building database to build pollution map of Cau

river water flow through Thai Nguyen city. Using the internal query function

IDW failure (Inverse Distance Weight), location and level of water pollution in

the mapping area. Results of the study through chemical groups (pH, COD,...)

physical group TSS microbiological group The results show that the water

quality of Cau river flows in the city is polluted and from the results We can

make assessments and identify the sources of pollution, thereby offering

appropriate solutions to solve existing problems in the river basin and bridge

section running through Thai Nguyen City.

Keywords water pollution control, GIS application

Number of pages 52

Date of submission 8/9/2019

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ACKNOWLEDGEMENT

Graduation practice is the last and extremely important step of every

student in the learning process. Thereby helping students conditionally

consolidate the knowledge learned in the school and practical applications, while

improving the professional qualifications derived from their own aspirations and

the assignment of the office. Advanced Program of Thai Nguyen University of

Agriculture and Forestry

Through this. I would like to thank my relatives and family for supporting

me and helping me during my graduation thesis Through this, I would like to

express my deep gratitude to the teachers during the learning process, especially

Mr. Nguyen Thanh Hai who directly guided me to complete the course. At the

same time, I would like to express my thanks to Mr. Nguyen Van Hieu and Mr.

Mui Minh Tung of the Center for Geoinformatics Application Research, Thai

Nguyen University of Agriculture and Forestry for their support throughout the

process. graduation thesis I would like to thank my relatives and family for their

support h I support and help me during the graduation thesis

In the course of implementing graduation thesis, I still have many mistakes,

so I hope to receive the help of teachers so that my topic can be further improved.

Thank you sincerely !

Thai Nguyen in September 2019

Student

LÝ TIẾN LỢI

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TABLE OF CONTENT

TABLE OF CONTENT ........................................................................................iii

LIST OF FIGURES ................................................................................................ v

LIST OF TABLES ................................................................................................ vi

LIST OF ABBREVIATIONS .............................................................................. vii

PART I. INTRODUCTION ................................................................................... 4

1.1. Research rationale ........................................................................................... 4

1.2. Research objectives ......................................................................................... 5

1.3. Research question ............................................................................................ 5

1.4. Limitations ....................................................................................................... 6

PART II. LITERATURE REVIEW ....................................................................... 7

2.1. Overview of surface water resources and water pollution .............................. 7

2.2. Sources that pollute surface water ................................................................... 7

2.2.1. From humans ................................................................................................ 7

2.2.2. From agricultural production ........................................................................ 8

2.2.3. From industrial production ........................................................................... 9

2.3. Waste water and waste water classification .................................................... 9

2.4. DO and BOD ................................................................................................. 10

2.5. COD ............................................................................................................... 10

2.6. pH .................................................................................................................. 11

2.7. Coliform and TSS .......................................................................................... 11

2.8. Situation of pollution of river bridge water in Thai Nguyen ......................... 12

2.9. Introduction to GIS ........................................................................................ 13

PART III. METHOD ............................................................................................ 15

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3.1. Location and time of sampling ...................................................................... 15

3.2. Methods of sampling and analysis ................................................................ 16

3.3. Methods of collecting secondary documents ................................................ 17

3.4. Method of building a map ............................................................................. 18

3.5. Methods of synthesis and data processing .................................................... 19

PART IV. RESULTS AND DISCUSSION ......................................................... 20

4.1. Natural and socio-economic conditions of Thai Nguyen city ....................... 20

4.2. Geographical location .................................................................................... 21

4.3. Geomorphological topography ...................................................................... 21

4.4. Assess the status of environmental quality of water in Cau river basin section

running through Thai Nguyen city ....................................................................... 23

4.5. Factors affecting surface water quality.......................................................... 27

4.6. Proposing some solutions to improve the surface water environment in Thai

Nguyen city in the coming time ........................................................................... 33

4.6.1. In terms of management ............................................................................. 33

4.6.2. Educational propaganda activities .............................................................. 34

4.6.3. Technical solutions ..................................................................................... 36

PART V. CONCLUSION .................................................................................... 37

5.1. Conclusion ..................................................................................................... 37

5.2. Request .......................................................................................................... 38

REFERENCES ..................................................................................................... 39

APPENDICES ...................................................................................................... 42