MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION CAPSTONE PROJECT ENVIRONMENTAL ENGINEERING TECHNOLOGY APPLYING BIOFILM HYBRID SYSTEM (ANAEROBIC - AEROBIC) USING CORAL MEDIA AND MICROBE-LIFT IND ON AUTOMOBILE WASTEWATER TREATMENT ADVISOR: Dr. NGUYEN MY LINH STUDENT: NGUYEN THI KIM XUYEN NGUYEN PHUOC LOC SKL009979 Ho Chi Minh City, July 2017 HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION -----------***----------- CAPSTONE PROJECT APPLYING BIOFILM HYBRID SYSTEM (ANAEROBIC - AEROBIC) USING CORAL MEDIA AND MICROBE-LIFT IND ON AUTOMOBILE WASTEWATER TREATMENT STUDENT: NGUYEN PHUOC LOC NGUYEN THI KIM XUYEN SUPERVISOR: NGUYEN MY LINH GVHD: Th. HUỲNH PHƯỚC SƠN TP. Hồ Chí Minh, July/2017 SOCIALIST REPUBLUC OF VIETNAM Independence – Freedom – Happiness ----***---- HCM.
City, / /2017 MISSION OF GRADUATION THESIS Name: Nguyen Phuoc Loc Student ID: 13150132 Nguyen Thi Kim Xuyen 13150181 Major: Environmental Engineering and Technology Class: 13150CLC Supervisor: Dr. Nguyen My Linh Receive date: 01/2017 Submit date: 7/2017 1. Topic: Applying biofilm hybrid system (Anaerobic – Aerobic) using coral media and Microbe-Lift IND on automobile wastewater treatment. Content impletemation - Design a lab-scale model of hybrid (anaerobic – aerobic) using coral media.
- Use automobile wastewater in Mercedes-Benz company. - Evaluate the efficiency of nitrogen, phosphorus, COD, removal of the model during the adaptive phase and operated phase. - Evaluate the stability of the model after supplementation with Microbial preparation Microbe-Lift IND. HEAD OF ENVIRMONMENT SUPERVISOR DEPARTMENT i SOCIALIST REPUBLIC OF VIETNAM Independence – Freedom – Happiness ******* COMMENT OF SUPERVISOR Name of student:.
Name of Supervisor:. Content impletemation & Amount of work:. Defense: Yes/No. Evaluate of kind:.
/2017 Supervisor (Sign & write your name) ii SOCIALIST REPUBLIC OF VIETNAM Independence – Freedom – Happiness ******* COMMENT OF REVIEWER Name of student:. Name of Reviewer: .Content impletemation & Amount of work:. Defense: Yes/No. Evaluate of kind:.
/2017 Reviewer (Sign & write your name) iii ACKNOWLEDGEMENTS This thesis could not have been done without the valuable help from many people. First and foremost, we want to thank my supervisor, Dr. Nguyen My Linh. Thanks for all your patience, understanding, help, advices, planning and encourage- ment throughout the whole period doing thesis graduation.
Thanks also for giving us the opportunity to be work with you. It has been a great inspiration to learn to know your character, both in academic and human terms. We would like to send many thanks to Mr. Tran Kiet Huy, for providing me with the best time we have ever had at the Mercedes – Benz company.
Your experien- ce, opinion, view, comments and thoughts have been great and useful. It was a great pleasure to be part of the laboratory of Mercedes – Benz company. We want to spec- ially mention Huy to open me the doors of practical experiences and some questions gave me when we had the pleasure to discuss several times with you. We really appre- ciate the high standards you have set for me, which we would never have reached without your help.
A special thank goes to the Ms. Dong Thi Tu Anh (Dat Hop Company) and Board of Directors of Mercedes – Benz for their unfailing support. We would particularly like to thank All teachers in the Department of High Quality for creating the most favorable conditions for this thesis. Moreover, we would like to thank Ms.
Le Thi Bach Hue for supporting us equipments in laboratory was essential for the success of the thesis. Last but no the least, we should say thanks from the deep of our heart to our beloved family, teachers, friends. They never ending love, help, and support in so many ways through all this time. Thank you so much.
Ho Chi Minh City, 07/2017 Nguyen Phuoc Loc Nguyen Thi Kim Xuyen iv ABSTRACT In this research, automobile wastewater treatment was performed using the Hybrid system (Anaerobic-Aerobic) with coral media. The coral media is not only cheap, available but also gives high efficiency of COD, Total Kjeldahl Nitrogen, and total phosphorus removal. The results were analyzed daily. The Microbe-Lift IND was added in the last stage of the process to enhance the capacity of the whole system.
The research was conducted in two phases: adaptive and operative phase. During the adaptive phase, operate for 2 weeks to form microfilm on the coral media. At the operated phase with divided into three periods corresponding to the organic loading rate of 0. In these stages, the efficiency of COD, TKN, TP treatment is high and stable.
With a COD removal efficiency of 74.4% and TP were 67.7% and TKN is 66.2% relatively in three different organic loading rates. Keywords: automobile wastewater treatment, coral media, biofilm kinetic, hybrid system… v TABLE OF CONTENTS MISSION OF GRADUATION THESIS. I COMMENT OF SUPERVISOR. II COMMENT OF REVIEWER.
V TABLE OF CONTENTS. VI LIST OF FIGURES. VIII LIST OF TABLES. IX LIST OF ABBREVIATIONS.
INTRODUCTION OF WASTE WATER PRODUCTION. INTRODUCE THE AUTOMOBILE INDUSTRY. MAIN STAGES OF WASTEWATER GENERATION. CURRENT MERCEDES – BENZ AUTOMOBILE WASTEWATER TREATMENT TECHNOLOGY SYSTEM DIAGRAM.
INTRODUCTION TO WASTEWATER TREATMENT TECHNOLOGY. PHYSICAL AND CHEMICAL METHODS. THEORETICAL BASIS OF AEROBIC BIOLOGICAL PROCESS. AEROBIC BIOLOGICAL PROCESS.
FACTORS AFFECTING AEROBIC BIOLOGICAL PROCESSES. SUSPENDED GROWTH PROCESS - ACTIVATED SLUDGE. THE GROWTH OF BIOFILM. THEORETICAL BASIS OF ANAEROBIC BIOLOGICAL PROCESS.
ANAEROBIC BIOLOGICAL PROCESS. INTRODUCTION TO HYBRID TECHNOLOGY AND HYBRID TECHNOLOGY APPLICATION IN BIOLOGY WASTEWATER TREATMENT ………………………………………………………………………………. A SUMMARY OF HYBRID BIOLOGY. THE ANAEROBIC HYBRID SYSTEM COMBINES AEROBIC.
UANF and UAF hybrid systems. The hybrid system combines anaerobic and aerobic tube. Anaerobic and aerobic hybrid system – SAA. Hybrid partition system.
MBR hybrid system combines anaerobic – aerobic. THE REMOVAL OF NITROGEN AND PHOSPHORUS BY BIOLOGICAL METHOD. MECHANISM OF NITROGEN TREATMENT. MECHANISM OF PHOSPHORUS TREATMENT .27 CHAPTER 2 : METHOD OF RESEARCH.
CAR MANUFACTURING WASTEWATER. ACTIVATED SLUDGE AND CORAL MEDIA. SEQUENCE OF EXPERIMENT. SAMPLING AND ANALYSIS .35 CHAPTER 3 : RESULTS AND DISCUSSION.
THE CHANGE OF MLSS. REMOVAL EFFICIENCY OF COD. REMOVAL EFFICIENCY OF TP. REMOVAL EFFICIENCY OF TKN.
REMOVAL EFFICIENCY OF BOD5. THE CHANGE OF PH. EFFECT OF PH TO PHOSPHORUS REMOVAL IN ANAEROBIC. EFFICIENCY OF MICROBE-LIFT IND.
The relationship between TP decrease and Microbial preparation Microbe- Lift IND. The relationship between microbial preparation Microbe-Lift IND and % COD. THE CHANGING OF CONCENTRATION IN ALL SAMPLING TAPS .55 CHAPTER 4 : CONCLUSION AND FUTURE WORK .62 vii LIST OF FIGURES Figure 1.1: The process of producing and assembling cars .2: Wastewater generation stages in the production phase .3: Mercedes – Benz automobile wastewater treatment technology system diagram .5: The stages of anaerobic digestion.6: Tubular Hybrid model .7: Hybrid model SAA [Y.J Chan et al.8: Biomedical hybrid model [Y.J Chan et al.9: Combined MBR model - Aerobic [Y.J Chan et al.10: Schematic representation of concentration profiles for EBPR under anaerobic - aerobic conditions .1: Diagram of research method .4: Microbial preparation Microbe-Lift IND .5: Experimental model in drawing .6: Experiment model in practicing .7: Diagram in Operative phase .1: Coral media before and after use for treatment .2: Scanning Electron Micrographs of attached microorganism .3: The changing of MLSS in second tanks .4: Influent and effluent concentrations and removal efficiencies of COD vs. time in the whole experiment (three stages) .6: The release of phosphorus in three stages .7: Influent and effluent concentrations and removal efficiencies of TKN vs.
time in the whole experiment .8: Influent, Anaerobic, Aerobic, Effluent concentrations and removal efficiencies of BOD5 vs. time in the whole experiment .9: The change of input and output pH .10: The change of pH in Anaerobic.11: The change of pH in Aerobic .12: Relationship between pH and P release.13:The relationship between TP decrease and dose of Microbe-Lift IND .14: The relationship between %COD and dose of Microbe-Lift IND .54 viii LIST OF TABLES Table 1.1: Some major microbial species in the activated sludge population .2: Mechanism of phosphorus treatment in anaerobic phase and aerobic phase .1: The composition and characteristics of automobile wastewater .2: Feature number of microbial preparation .4: Operating parameter in adaptive phase .5: Operating parameter in operative phase .6: Frequency of sampling and analysis wastewater .7: Methods of analysis sample .1: Effectiveness of COD treatment in three stages .2: TP removal efficiencies in three phases .3: The efficiencies of treating TKN in three stages .4: BOD5 removal efficiencies in 3 phases .5: Change of input and output pH .6: Frequency of preparation added. 53 ix LIST OF ABBREVIATIONS BOD : Biological Oxygen Demand BTNMT : Department of Environment and Resource COD : Chemical Oxygen Demand MBR : Membrane Bioreactor MLSS : Mixed Liquor Suspended Solid NO2--N : Nitrite Nitrogen NO3--N : Nitrate Nitrogen NH4+-N : Ammonium Nitrogen QCVN : Standard of Vietnam RAS : Return Activated sludge SRT : Sludge Retention Time SS : Suspended Solid SVI : Sludge Volume Index TKN : Total Nitrogen Kjeldahl TP : Total Phosphorous x PREFACE Motivation The automobile industry is one of the industries which have significant role in the world. Today, in Vietnam, the car industry is being built and developed with the strategic objectives to respond promptly modern and in line with consumer trends of today.
The automotive has had a major role in the economy. The development of this field not only solved the transportation problem, contributed to the development of production and commercial business but also a highly profitable industry by producing products of superior value brought. With the advanced development of science and technology, it has helped to increase production capacity and create high – quality vehicles to meet human needs. But the industry has caused a lot of harms to the environment and to human health as a result of the toxic substances released from the manufacturing process.
Wastewater after the car production process has high phosphorus and COD, therefore, without a suitable treatment process, it may cause environmental pollution to the surface water. The high phosphorus content of the water will cause eutrophication affecting the imbalance in the microbial life, whereas high COD indicates the concentration of toxic chemicals in the water from the processes. Production such as the use of chemicals in car dyes, grease from the cleaning process has largely increased the concentration of COD in the wastewater. This causes the discharge of water into the environment, causing serious environmental pollution, affecting human life.
"Applying biofilm hybrid system (Anaerobic – Aerobic) using coral media and Microbe-lift IND on automobile wastewater treatment” offers a combined processing technology that report gives the viewer the most objective comment about the processing efficiency when using this method. From there, the advantages and disadvantages of the application, and the introduction of a new application in the biological treatment of wastewater. Object - Design a research model of hybrid (anaerobic – aerobic) using applying biofilm membrane technology with coral media. - Evaluate the efficiency of nitrogen, phosphorus, COD, removal of the model during the adaptive phase and operated phase.
- Evaluate the stability of the model before and after supplementation with Microbial preparation Microbe-Lift IND. 1 Content Content 1: An overview of automotive wastewater and hybrid technology - An overview of the production of automobile wastewater. - Presentation of theoretical foundations of aerobic and anaerobic biological processes, suspended growth, adhesion. - Introduction to Hybrid Technologies.
- Presentation of the mechanism of nitrogen and phosphorus treatment by biological method. Content 2: Set up research model at laboratory scale - Planning and study diagrams. - Manufacturing models at laboratory scale. - Synthesize and collect materials for research: wastewater, growth mud, adhesives and coral media.
- Carry out sampling and analysis of wastewater samples and initial sludge samples before starting the model. Content 3: Operate the model at different loads and assess the ability to removal with pollutants.