Sewer Processes

Sewer Processes
Author: Thorkild Hvitved-Jacobsen
Publisher: CRC Press
Total Pages: 403
Release: 2013-04-23
Genre: Technology & Engineering
ISBN: 1439881774

Since the first edition was published over a decade ago, advancements have been made in the design, operation, and maintenance of sewer systems, and new problems have emerged. For example, sewer processes are now integrated in computer models, and simultaneously, odor and corrosion problems caused by hydrogen sulfide and other volatile organic compounds, as well as other potential health issues, have caused environmental concerns to rise. Reflecting the most current developments, Sewer Processes: Microbial and Chemical Process Engineering of Sewer Networks, Second Edition, offers the reader updated and valuable information on the sewer as a chemical and biological reactor. It focuses on how to predict critical impacts and control adverse effects. It also provides an integrated description of sewer processes in modeling terms. This second edition is full of illustrative examples and figures, includes revisions of chapters from the previous edition, adds three new chapters, and presents extensive study questions. Presents new modeling tools for the design and operation of sewer networks Establishes sewer processes as a key element in preserving water quality Includes greatly expanded coverage of odor formation and prediction Details the WATS sewer process model Highlights the importance of aerobic, anoxic, and anaerobic processes Sewer Processes: Microbial and Chemical Process Engineering of Sewer Networks, Second Edition, provides a basis for up-to-date understanding and modeling of sewer microbial and chemical processes and demonstrates how this knowledge can be applied for the design, operation, and the maintenance of wastewater collection systems. The authors add chemical and microbial dimensions to the design and management of sewer networks with an overall aim of improved sustainability for the system itself and the surrounding environment.

Physical-Chemical Treatment of Water and Wastewater

Physical-Chemical Treatment of Water and Wastewater
Author: A. P. Sincero
Publisher: IWA Publishing
Total Pages: 866
Release: 2002-07-31
Genre: Science
ISBN: 9781843390282

The books currently available on this subject contain some elements of physical-chemical treatment of water and wastewater but fall short of giving comprehensive and authoritative coverage. They contain some equations that are not substantiated, offering empirical data based on assumptions that are therefore difficult to comprehend. This text brings together the information previously scattered in several books and adds the knowledge from the author's lectures on wastewater engineering. Physical-Chemical Treatment of Water and Wastewater is not only descriptive but is also analytical in nature. The work covers the physical unit operations and unit processes utilized in the treatment of water and wastewater. Its organization is designed to match the major processes and its approach is mathematical. The authors stress the description and derivation of processes and process parameters in mathematical terms, which can then be generalized into diverse empirical situations. Each chapter includes design equations, definitions of symbols, a glossary of terms, and worked examples. One author is an environmental engineer and a professor for over 12 years and the other has been in the practice of environmental engineering for more than 20 years. They offer a sound analytical mathematical foundation and description of processes. Physical-Chemical Treatment of Water and Wastewater fills a niche as the only dedicated textbook in the area of physical and chemical methods, providing an analytical approach applicable to a range of empirical situations Contents Introduction Characteristics of Water and Wastewater Quantity of Water and Wastewater Constituents of Water and Wastewater Unit Operations of Water and Wastewater Treatment Flow Measurements and Flow and Quality Equalizations Pumping Screening, Settling, and Flotation Mixing and Flocculation Conventional Filtration Advanced Filtration and Carbon Adsorption Aeration, Absorption, and Stripping Unit Processes of Water and Wastewater Treatment Water Softening Water Stabilization Coagulation Removal of Iron and Manganese by Chemical Precipitation Removal of Phosphorus by Chemical Precipitation Removal of Nitrogen by Nitrification-Denitrification Ion Exchange Disinfection

Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse - Second Edition

Membrane Biological Reactors: Theory, Modeling, Design, Management and Applications to Wastewater Reuse - Second Edition
Author: Faisal I. Hai
Publisher: IWA Publishing
Total Pages: 598
Release: 2018-10-15
Genre: Science
ISBN: 1780409168

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.

Modelling, Simulation and Control of Urban Wastewater Systems

Modelling, Simulation and Control of Urban Wastewater Systems
Author: Manfred Schütze
Publisher: Springer Science & Business Media
Total Pages: 371
Release: 2011-06-27
Genre: Technology & Engineering
ISBN: 144710157X

by Professor Poul Harremoes Environmental engineering has been a discipline dominated by empirical approaches to engineering. Historically speaking, the development of urban drainage structures was very successful on the basis of pure empiricism. Just think of the impressive structures built by the Romans long before the discipline of hydraulics came into being. The fact is that the Romans did not know much about the theories of hydraulics, which were discovered as late as the mid-1800s. However, with the Renaissance came a new era. Astronomy (Galileos) and basic physics (Newton) started the scientific revolution and in the mid-1800s Navier and Stokes developed the application of Newtons laws to hydrodynamics, and later, St. Venant the first basic physics description of the motion of water in open channels. The combination of basic physical understanding of the phenomena involved in the flow of water in pipes and the experience gained by "trial and error", the engineering approach to urban drainage improved the design and performance of the engineering drainage infrastructure. However, due to the mathematical complications of the basic equations, solutions were available only to quite simple cases of practical significance until the introduction of new principles of calculation made possible by computers and their ability to crunch numbers. Now even intricate hydraulic phenomena can be simulated with a reasonable degree of confidence that the simulations are in agreement with performance in practice, if the models are adequately calibrated with sample performance data.

Wastewater Quality Monitoring and Treatment

Wastewater Quality Monitoring and Treatment
Author: Philippe Quevauviller
Publisher: John Wiley & Sons
Total Pages: 408
Release: 2007-01-11
Genre: Science
ISBN: 0470058730

The issue of water quality monitoring is becoming a huge area as the EU requirements for cleaner water increase. On-line monitoring involves measuring a body of water constantly and in-situ as opposed to analysing samples in the lab. Currently filling the gap in the market, Wastewater Quality Monitoring: On-line Methods provides information on how to produce the best analyses of wastewater in order to meet the above mentioned requirements. This reference will prove invaluable to all local water companies, industrial companies producing wastewater, as well as environment agencies and researchers.

Solids in Sewers

Solids in Sewers
Author: Richard M. Ashley
Publisher: IWA Publishing
Total Pages: 362
Release: 2004-04-30
Genre: Science
ISBN: 1900222914

This Report presents information on the current state of knowledge of the origins, occurrence, nature and effects of sewer solids for use by engineers, scientists, administrators and water quality planners for the planning, design and operation of sewerage systems. The report addresses both sewer maintenance requirements and environmental protection issues. Increasing environmental standards, coupled with public expectations, have led to stringent water quality standards. In response to this, it has been necessary to develop new methodologies and computer based analytical techniques to model and understand the performance of all aspects of waste water systems. Fundamental to these techniques is the understanding of the way in which sewer solids contribute to the poor performance of wastewater systems and consequential environmental damage. The information presented in this Report about the origins, nature, movement, hydraulic and polluting effects of solids in sewers has enabled strategies and rules to be developed for the management of sewerage systems to minimise the deleterious effects of these solids and associated pollutants. Scientific & Technical Report No. 14

Wastewater-Based Epidemiology for the Assessment of Human Exposure to Environmental Pollutants

Wastewater-Based Epidemiology for the Assessment of Human Exposure to Environmental Pollutants
Author: Mohammad Hadi Dehghani
Publisher: Elsevier
Total Pages: 286
Release: 2023-07-30
Genre: Science
ISBN: 0443161461

Wastewater-based Epidemiology for the Assessment of Human Exposure to Environmental Pollutants discusses wastewater-based epidemiology (WBE) and its use in risk assessment and monitoring of human exposure to hazardous pollutants and pathogens. The book explores the health impacts of organic and inorganic pollutants from pesticides, heavy metals, pharmaceuticals, phthalates, personal care products, and endocrine disruptors in the wastewater environment. The book examines the application of wastewater-based epidemiology in determining health risk and exposure to infectious diseases caused by viruses, such as SARS-CoV-2, parasites, and bacteria. Other topics include detection techniques, sampling techniques, analytical methods, biomarkers, and the use of biosensors in wastewater-based epidemiology studies. - Presents evidence mapping to identify emerging areas in wastewater-based epidemiology studies - Offers expansion and diversification strategies in pandemic conditions to serve immediate public health goals - Explains the surveillance of the spread of pathogens through wastewater

Assessing Infiltration and Exfiltration on the Performance of Urban Sewer Systems

Assessing Infiltration and Exfiltration on the Performance of Urban Sewer Systems
Author: Bryan Ellis
Publisher: IWA Publishing
Total Pages: 193
Release: 2010-02-10
Genre: Science
ISBN: 184339149X

Sewer systems constitute a very significant heritage in European cities. Their structural quality and functional efficiency are key parameters to guarantee the transfer of domestic and industrial wastewater to treatment plants without infiltration nor exfiltration. Infiltration of groundwater is particularly detrimental to treatment plant efficiency, while exfiltration of wastewater can lead to groundwater contamination. The European research project APUSS (Assessing infiltration and exfiltration on the Performance of Urban Sewer Systems) was devoted to sewer infiltration and exfiltration questions. It was structured in three main Work Areas dealing respectively with i) the development of new measurement methods based on tracer experiments and accounting for detailed uncertainty analyses, ii) the implementation of models and software tools to integrate structural and experimental data and to facilitate data display, operational management and decision-making processes and iii) the integration of economic and operational questions by means of cost estimation, economic evaluation, performance indicators and multi-criteria methods applied to investment/rehabilitation strategies. This final report describes the objectives, methods and main results for each Work Area. References to detailed methods, protocols, reports and tools are given in this final report which will be an invaluable source of information for all those concerned with the performance of urban sewer systems.

Principles of Membrane Bioreactors for Wastewater Treatment

Principles of Membrane Bioreactors for Wastewater Treatment
Author: Hee-Deung Park
Publisher: CRC Press
Total Pages: 436
Release: 2015-04-17
Genre: Medical
ISBN: 1466590386

Membrane bioreactor (MBR) technology is a wastewater treatment method combining biological pollutant treatment with physical membrane separation. It has gained increasing commercial significance over the last decade, with applications in municipal and industrial wastewater treatment becoming increasingly widespread. This book covers a wide variety of MBR topics, including filtration theory, membrane materials and geometry, fouling phenomena and properties, and strategies for minimizing fouling. Also covered are practical aspects such as operation, maintenance, design, and application.