Luận văn thạc sĩ investigation of the wastewater treatment capacity after the mineral exploitation

i

THAI NGUYEN UNIVERSITY

UNIVERSITY OF AGRCULTURE AND FORESTRY

TRAN THI NHU

INVESTIGATION OF THE WASTEWATER TREATMENT CAPACITY AFTER THE

MINERAL EXPLOITATION BY USING AGRICULTURAL WASTES (SUGAR-CANE

BAGASSE, PEANUT SHELLS AND COCONUT FIBERS)

BACHELOR THESIS

Study Mode: Full-time

Major: Environmental Science and Management

Faculty: International Training and Development Center

Batch: 2012-2016

Thai Nguyen, 15/09/2016

n

ii

DOCUMENTATION PAGE WITH ABSTRACT

Thai Nguyen University of Agriculture and Forestry

Degree Program Bachelor of Environment Science and Management

Student name Tran Thi Nhu

Student ID DTN1253080006

Thesis Title Investigation of the wastewater treatment capacity after the

mineral exploitation by using agricultural wastes (sugar￾cane bagasse, peanut shells and coconut fibers)

Supervisor (s) Assoc.Prof. Dam Xuan Van, Thai Nguyen University of

Agriculture and Forestry

ABSTRACT

This research used agricultural wastes (sugar-cane bagasse, peanut shells and

coconut fibers) as a low cost materials in order to remove the heavy metal in the

wastewater after the mineral exploitation and in laboratory water which was mixed

with a fix concentration of heavy metals (500 mg/l and 1000 mg/l). The results showed

that sugar-cane bagasse, peanut shells and coconut fibers have a very well heavy

metals adsorption capacity. When the amount of adsorption materials increases, the

adsorption capacity of Cu, Pb also increases immediatetly. For example, with sugar￾cane bagasse, the ability to absorb heavy metals is highest when sugar-cane bagasse

entered is 900g, sugar-cane bagasse can absorb about 71.452% (Treatment 3 Pb F3Pb

with the amount of sugar-cane bagasse is 900g), it increases about 1.66 times

compared with the amount of Pb that it absorbed in treatment 1 Pb ( F1Pb with the

amount of sugar-cane bagasse is 300g). Similarly, the highest amount of peanut sheels

n

iii

and coconut fibers to absorb the heavy metals is 900g and declining due to reducing

the amount of peanut shells and coconut fibers.

The heavy metals adsorption productivity achieved 30%-80% by comparing with

the initial concentration. It is concluded that agricutural wastes can remove heavy

metals (Pb, Cu)in the wastewater, coconut fibers showed the best heavy metals

absorption capacity followed by sugar-cane bagasse and peanut shells.

Keywords 1. Sugar-cane bagasse

2. Peanut shells

3. Coconut fibers

4. Water pollution

5. Heavy metals

Numbers of Pages 44

Date of Submission September , 2016

Supervisor’s signature

n

iv

ACKNOWLEDGEMENT

From bottom of my heart, I would like to express my deepest appreciation to all

those who provided me the opportunity to complete this research.

First and foremost, I would like to express my deepest gratitude and special thanks

to School Leadership and teachers at International Training and Development Center -

Thai Nguyen University of Agriculture and Forestry those imparted for me the knowledge

as well as facilitating learning and help me during the learning process in schools. In

particularly, Iwould like to express my sincere gratitude and deep regards tomy

supervisorAssoc.Prof.Dam Xuan Vanin Faculty of Management Resources - who

took time out to hear, guide, support and encourage me on the correct path and

allowing me to carry out my study to have successful results. Especially, hispriceless

advices are not a small contributein orienting my careers and future.

Besides my supervisors, I would like to thank Dr. Tran Thi Pha in Faculty of

Environment, who gave the permission to use all required equipment and the

necessary materials to conduct my reseach in Laboratory of Environment Resources.

Especially, I would like to thanks for her advice, encouragement and guidance during

my thesis.

Moreover, Ialso want toexpress my thanks to the Faculty of Environmentfor

helping and providing me a good laboratory with modern equipment and good

infrastructure that plays an important part in the success of my thesis.

I would also like to thanks to Do Minh Hong, Do Manh Dung, Nguyen Thi Van,

Nguyen Vu Tuan Anh – my classmates, who provided their ongoing support, questions

and suggestions.

n

v

Last but not least, I would like to express my love and gratitude to my beloved

parents for their support and endles love.

I would like to sincerely thank!

Thai Nguyen, September , 2016

Sincerely,

Tran Thi Nhu

n