TAILIEUCHUNG - Summary of Environmental engineering doctoral thesis: Research and development of the internal circulation (IC) high rate anaerobic treatment technology

This thesis focuses on simulating the internal circulation process (gas pulling water) to determine: The amount of water (QN) was pulled up by the amount of gas (QK); and mixing ability of generated gas and circulating water flow, from which to calculate the periodic structure in the IC system. | MINISTRY OF VIETNAM ACADEMY OF EDUCATION AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY Tran Manh Hai RESEARCH AND DEVELOPMENT OF THE INTERNAL CIRCULATION IC HIGH RATE ANAEROBIC TREATMENT TECHNOLOGY Major Environmental Engineering Code SUMMARY OF ENVIRONMENTAL ENGINEERING DOCTORAL THESIS Hanoi - 2019 This thesis done at - Department for Technology Application and Tranfer - Institute of Environmental Technology Vietnam Academy of Science and Technology - Department of Enviromental Technology - Center for Environmental Technology amp Sustainable Development CETASD Hanoi University of Science HUS . - Graduate University of Science and Technology - Vietnam Academy of Science and Technology. Supervisor 1 . Dr. Cao The Ha Supervisor 2 . Dr. Nguyen Hoai Chau The dissertation will be defended at Graduate University of Science and Technology - Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street Hanoi. Time . . 2019 This thesis could be found at - National Library of Vietnam - Library of Graduate University of Science and Technology. 1 INTRODUCTION 1. Rationale In the history of development there are 4 types of anaerobic treatment techniques that have been applied 1 The continuous stirred-tank reactor - CSTR 2 Anaerobic contact - AC 3 Up-flow Anaerobic Sludge Blanket UASB and 4 Expanded Granular Sludge Bed - EGSB and Internal Circulation - IC. In the past 40 years many high-rate anaerobic techniques have been applied with different designs 2 . The references show that IC and EGSB system are the most advanced and efficient one the IC technology has the highest loading rate and productivity in current techniques 3 . Therefore the growth rate of IC systems is very high. In 1997 the world had 32 IC systems up to 2007 there were 2266 all over the world and by 2015 the estimated number of installed high-load anaerobic systems exceeded 4 . An important feature of microbiological treatment .

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