Comparison Between Thermophilic And Mesophilic Membrane Aerated Biofilm Reactors A Modeling Study
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Comparison Between Thermophilic And Mesophilic Membrane Aerated Biofilm Reactors A Modeling Study
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Author : Duowei Lu
language : en
Publisher:
Release Date : 2018
Comparison Between Thermophilic And Mesophilic Membrane Aerated Biofilm Reactors A Modeling Study written by Duowei Lu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Membrane aerated biofilm reactor (MABR), as a novel biological waste treatment technology, has received much attention in recent years, due to its advantages, as compared to conventional biofilm. Considerable amount of research and development of MABR technology were conducted in lab-scale, pilot-scale studies and even full-scale applications for various types of waste treatment and air pollution control. Though many researches have mentioned that operation factors would result in different system performance, few researches are focused on temperature changing impacts. While thermophilic aerated biological treatment already became a hot issue for waste water treatment. Thus, combined with thermophilic aerated biological treatment, the concept of thermophilic membrane-aerated biofilm reactor (ThMABR) is proposed in this research. This concept has a great potential to develop a new type of ultracompact, highly efficient bioreactor for high strength wastewater. In order to prove the high temperature has positive effect on MABR system, a mathematic modeling was established. Mathematical modeling was conducted to investigate the impact of temperature (mesophilic vs. thermophilic) on oxygen and substrate concentration profiles, membrane-biofilm interfacial oxygen concentration, oxygen penetration distance, and oxygen and substrate fluxes into biofilms. In the first part of this thesis, it focuses on a state-of-the-art literature review (2007-present) on the research progress and technology development of the MABR technology. The biological and membrane performances of MABRs for chemical oxygen demand (COD) and nitrogen removal in wastewaters, air pollution control, and modeling studies are systematically reviewed and discussed. However, few articles mentioned the temperature changing effect on MABR system. So in the second part, the concept of thermophilic membrane-aerated biofilm reactor (ThMABR) is proposed. This concept combines the advantages and overcomes the disadvantages of conventional MABR and thermophilic aerobic biological treatment, and has a great potential to develop a new type of ultra-compact, highly efficient bioreactor for high strength wastewater and waste gas treatments. Mathematical modeling was conducted to investigate the impact of temperature (mesophilic vs. thermophilic) on oxygen and substrate concentration profiles, membrane-biofilm interfacial oxygen concentration, oxygen penetration distance, and oxygen and substrate fluxes into biofilms. The general trend of oxygen transfer and substrate flux into biofilm between ThMABR and MMABR was verified by the experimental results in the literature. The results from modeling studies indicate that the ThMABR has significant advantages over the conventional mesophilic MABR in terms of improved oxygen and pollutant flux into biofilms and biodegradation rates and an optimal biofilm thickness exists for maximum oxygen and substrate fluxes into biofilm.
Membrane Biological Reactors Theory Modeling Design Management And Applications To Wastewater Reuse Second Edition
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Author : Faisal I. Hai
language : en
Publisher: IWA Publishing
Release Date : 2018-10-15
Membrane Biological Reactors Theory Modeling Design Management And Applications To Wastewater Reuse Second Edition written by Faisal I. Hai and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-15 with Science categories.
The MBR market continues to experience a massive growth. The best practice in the field is constantly changing and unique quality requirements and management issues are regularly emerging. The second edition of Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse comprehensively covers the salient features and emerging issues associated with the MBR technology. The book provides thorough coverage starting from biological aspects and fundamentals of membranes, via modeling and design concepts, to practitioners’ perspective and good application examples. In the second edition, the chapters have been updated to cover the recently emerged issues. Particularly, the book presents the current status of the technology including market drivers/ restraints and development trend. Process fundamentals (both the biological and membrane components) have received in-depth coverage in the new edition. A new chapter has been added to provide a stronger focus on reuse applications in general and the decisive role of MBR in the entire reuse chain. The second edition also comes with a new chapter containing practical design problems to complement the concepts communicated throughout the book. Other distinguishing features of the new edition are coverage of novel developments and hybrid processes for specialised wastewaters, energy efficiency and sustainability of the process, aspects of MBR process automation and recent material on case studies. The new edition is a valuable reference to the academic and professional community and suitable for undergraduate and postgraduate teaching in Environmental Engineering, Chemical Engineering and Biotechnology.
Index Medicus
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Author :
language : en
Publisher:
Release Date : 2004
Index Medicus written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Medicine categories.
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Current Advances In Applied Microbiology Biotechnology
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Author :
language : en
Publisher:
Release Date : 1993-07
Current Advances In Applied Microbiology Biotechnology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-07 with Biotechnology categories.
Microbiology Abstracts
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Author :
language : en
Publisher:
Release Date : 1995
Microbiology Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Industrial microbiology categories.
Chemical Abstracts
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Author :
language : en
Publisher:
Release Date : 2002
Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Chemistry categories.
Water Environment Technology
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Author :
language : en
Publisher:
Release Date : 2006-07
Water Environment Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-07 with Water categories.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1998
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Agriculture categories.
The Mbr Book
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Author : Simon Judd
language : en
Publisher: Elsevier
Release Date : 2011-04-18
The Mbr Book written by Simon Judd and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-18 with Technology & Engineering categories.
The MBR Book
Pollution Abstracts
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Author :
language : en
Publisher:
Release Date : 1996
Pollution Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Pollution categories.
Indexes material from conference proceedings and hard-to-find documents, in addition to journal articles. Over 1,000 journals are indexed and literature published from 1981 to the present is covered. Topics in pollution and its management are extensively covered from the standpoints of atmosphere, emissions, mathematical models, effects on people and animals, and environmental action. Major areas of coverage include: air pollution, marine pollution, freshwater pollution, sewage and wastewater treatment, waste management, land pollution, toxicology and health, noise, and radiation.