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Author: Miguel de Celis Rodríguez Publisher: ISBN: Category : Languages : es Pages : 0
Book Description
El funcionamiento de las Estaciones de Depuración de Agua Residual (EDAR) depende de la actividad de la comunidad microbiana para la degradación de la materia orgánica y de los nutrientes presentes en el agua residual. En los procesos de fango activo estos microorganismos se agrupan junto a la materia en suspensión para formar flóculos, que se separarán de la fase líquida para verter el agua tratada al medio de manera segura. Uno de los sistemas más utilizados para realizar esta separación es la utilización de membranas de filtración en biorreactores de membrana (MBR). En esta Tesis Doctoral se estudió la estructura y la dinámica de las comunidades microbianas en un biorreactor de EDAR-MBR a lo largo de dos años. Esta comunidad presentó un patrón de sucesión estacional, determinado por la temperatura, con una cierta deriva que produjo cambios significativos entre ambas anualidades. Una pequeña fracción de los filotipos detectados conformaron gran parte de la comunidad bacteriana, constituyendo un microbioma “core”, cuya estabilidad también está claramente determinada por la temperatura. Los patrones de estabilidad de esta comunidad se pueden inferir y monitorizar para determinar si la comunidad está funcionando correctamente. Mediante el uso de modelos basados en redes microbianas y análisis filogenéticos observamos que la sucesión de la microbiota del biorreactor consistía en la alternancia de dos sub-comunidades con distintas afinidades ambientales, que dominaban alternativamente en los meses cálidos y fríos. Además, la presión selectiva que ejerce el ambiente del biorreactor selecciona y mantiene una comunidad altamente funcional y especializada que responde a los cambios ambientales estacionales. Estos resultados se contrastaron con el análisis de una comunidad microbiana en proceso de adaptación al nuevo biorreactor donde había sido inoculada, observándose un patrón de ensamblaje que refleja la tendencia de la comunidad a ser cada vez más modular y especializada...
Author: Miguel de Celis Rodríguez Publisher: ISBN: Category : Languages : es Pages : 0
Book Description
El funcionamiento de las Estaciones de Depuración de Agua Residual (EDAR) depende de la actividad de la comunidad microbiana para la degradación de la materia orgánica y de los nutrientes presentes en el agua residual. En los procesos de fango activo estos microorganismos se agrupan junto a la materia en suspensión para formar flóculos, que se separarán de la fase líquida para verter el agua tratada al medio de manera segura. Uno de los sistemas más utilizados para realizar esta separación es la utilización de membranas de filtración en biorreactores de membrana (MBR). En esta Tesis Doctoral se estudió la estructura y la dinámica de las comunidades microbianas en un biorreactor de EDAR-MBR a lo largo de dos años. Esta comunidad presentó un patrón de sucesión estacional, determinado por la temperatura, con una cierta deriva que produjo cambios significativos entre ambas anualidades. Una pequeña fracción de los filotipos detectados conformaron gran parte de la comunidad bacteriana, constituyendo un microbioma “core”, cuya estabilidad también está claramente determinada por la temperatura. Los patrones de estabilidad de esta comunidad se pueden inferir y monitorizar para determinar si la comunidad está funcionando correctamente. Mediante el uso de modelos basados en redes microbianas y análisis filogenéticos observamos que la sucesión de la microbiota del biorreactor consistía en la alternancia de dos sub-comunidades con distintas afinidades ambientales, que dominaban alternativamente en los meses cálidos y fríos. Además, la presión selectiva que ejerce el ambiente del biorreactor selecciona y mantiene una comunidad altamente funcional y especializada que responde a los cambios ambientales estacionales. Estos resultados se contrastaron con el análisis de una comunidad microbiana en proceso de adaptación al nuevo biorreactor donde había sido inoculada, observándose un patrón de ensamblaje que refleja la tendencia de la comunidad a ser cada vez más modular y especializada...
Author: Damir Brdjanovic Publisher: IWA Publishing ISBN: 1780404638 Category : Science Languages : en Pages : 472
Book Description
In 1982 the International Association on Water Pollution Research and Control (IAWPRC), as it was then called, established a Task Group on Mathematical Modelling for Design and Operation of Activated Sludge Processes. The aim of the Task Group was to create a common platform that could be used for the future development of models for COD and N removal with a minimum of complexity. As the collaborative result of the work of several modelling groups, the Activated Sludge Model No. 1 (ASM1) was published in 1987, exactly 25 years ago. The ASM1 can be considered as the reference model, since this model triggered the general acceptance of wastewater treatment modelling, first in the research community and later on also in practice. ASM1 has become a reference for many scientific and practical projects, and has been implemented (in some cases with modifications) in most of the commercial software available for modelling and simulation of plants for N removal. The models have grown more complex over the years, from ASM1, including N removal processes, to ASM2 (and its variations) including P removal processes, and ASM3 that corrects the deficiencies of ASM1 and is based on a metabolic approach to modelling. So far, ASM1 is the most widely applied. Applications of Activated Sludge Models has been prepared in celebration of 25 years of ASM1 and in tribute to the activated sludge modelling pioneer, the late Professor G.v.R. Marrais. It consists of a dozen of practical applications for ASM models to model development, plant optimization, extension, upgrade, retrofit and troubleshooting, carried out by the members of the Delft modelling group over the last two decades.
Author: Metcalf & Eddy, Inc., an AECOM Company Publisher: McGraw Hill Professional ISBN: 0071508775 Category : Technology & Engineering Languages : en Pages : 1610
Book Description
An Integrated Approach to Managing the World's Water Resources Water Reuse: Issues, Technologies, and Applications equips water/wastewater students, engineers, scientists, and professionals with a definitive account of the latest water reclamation, recycling, and reuse theory and practice. This landmark textbook presents an integrated approach to all aspects of water reuse _ from public health protection to water quality criteria and regulations to advanced technology to implementation issues. Filled with over 500 detailed illustrations and photographs, Water Reuse: Issues, Technology, and Applications features: In-depth coverage of cutting-edge water reclamation and reuse applications Current issues and developments in public health and environmental protection criteria, regulations, and risk management Review of current advanced treatment technologies, new developments, and practices Special emphasis on process reliability and multiple barrier concepts approach Consideration of satellite and decentralized water reuse facilities Consideration of planning and public participation of water reuse Inside This Landmark Water/Wastewater Management Tool • Water Reuse: An Introduction • Health and Environmental Concerns in Water Reuse • Technologies and Systems for Water Reclamation and Reuse • Water Reuse Applications • Implementing Water Reuse
Author: Mogens Henze Publisher: IWA Publishing (International Water Assoc) ISBN: Category : Science Languages : en Pages : 170
Book Description
For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.
Author: Piet Lens Publisher: IWA Publishing ISBN: 1843391007 Category : Science Languages : en Pages : 545
Book Description
Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
Author: M. H. Fulekar Publisher: CRC Press ISBN: 1498726259 Category : Science Languages : en Pages : 310
Book Description
Environmental nanotechnology is considered to play a key role in shaping of current environmental engineering and science practices. This book titled "Environmental Nanotechnology" covers the advanced materials, devices, and system development for use in the environmental protection. The development of nano-based materials, understanding their chemistry and characterization using techniques like X- Ray diffraction, FT-IR, EDX, scanning electron microscope (SEM), transmission electron microscope (TEM), high resolution-TEM, etc is included. It also highlights the scope for their applications in environmental protection, environmental remediation and environmental biosensors for detection, monitoring and assessment. Key Features: Covers basic to advanced Nano-based materials, their synthesis, development, characterization and applications and all the updated information related to environmental nanotechnology. Discusses implications of nanomaterials on the environment and applications of nanotechnology to protect the environment. Illustrates specific topics such as ethics of nanotechnology development, Nano-biotechnology, and application in wastewater technology. Includes applications of nanomaterials for combating global climate change and carbon sequestration. Gives examples of field applications of environmental nanotechnology. This book covers advanced materials, devices, and system developments for use in environmental protection. The development of nano-based materials, understanding its chemistry and characterization by the use of X-Ray diffraction, FT-IR, EDX, scanning electron microscope (SEM), transmission electron microscope (TEM), and high resolution-TEM give the scope for their application in environmental protection, environmental remediation, and environmental biosensors for detection, monitoring, and assessment. The green chemistry based on nano-based materials prevents pollution and controls environmental contaminants.
Author: Rainer Stegmann Publisher: Springer Science & Business Media ISBN: 9783540417361 Category : Nature Languages : en Pages : 688
Book Description
The treatment of contaminated soil is a permanently relevant subject for ensuirng the quality of the environment. A wide variety of soils contaminated witht a broad range of harmful chemical compounds all around the the world, call for many different treatment strategies. Research activities focus on affordable methods offering the greatest possible effect, whilst limiting the potential side effects. This book sums up the research activities of Research Centre 188 which has cooperated with the Technical University of Hamburg-Harburg, the University of Hamburg and GKSS in Geesthacht over the last 12 years, thus greatly advancing our knowledge in this field.
Author: Zhenhong Yuan Publisher: Walter de Gruyter GmbH & Co KG ISBN: 311042486X Category : Technology & Engineering Languages : en Pages : 568
Book Description
The book provides an overview on various microorganisms and their industrialization in energy conversion, such as ethanol fermentation, butanol fermentation, biogas fermentation and fossil energy conversion. It also covers microbial oil production, hydrogen production and electricity generation. The content is up to date and suits well for both researchers and industrial audiences.
Author: Miguel de Celis Rodríguez
Author: Miguel de Celis Rodríguez
Author: Damir Brdjanovic
Author: Metcalf & Eddy, Inc., an AECOM Company
Author: Mogens Henze
Author: Piet Lens
Author: Mark V. Hughes
Author: M. H. Fulekar
Author: Rainer Stegmann
Author: United States. Office of Foreign Agricultural Relations
Author: Zhenhong Yuan