Water Quality Engineering

Author: Mark M. Benjamin
Publisher: John Wiley & Sons
ISBN: 1118632273
Format: PDF
Download Now
Explains the fundamental theory and mathematics of water and wastewater treatment processes By carefully explaining both the underlying theory and the underlying mathematics, this text enables readers to fully grasp the fundamentals of physical and chemical treatment processes for water and wastewater. Throughout the book, the authors use detailed examples to illustrate real-world challenges and their solutions, including step-by-step mathematical calculations. Each chapter ends with a set of problems that enable readers to put their knowledge into practice by developing and analyzing complex processes for the removal of soluble and particulate materials in order to ensure the safety of our water supplies. Designed to give readers a deep understanding of how water treatment processes actually work, Water Quality Engineering explores: Application of mass balances in continuous flow systems, enabling readers to understand and predict changes in water quality Processes for removing soluble contaminants from water, including treatment of municipal and industrial wastes Processes for removing particulate materials from water Membrane processes to remove both soluble and particulate materials Following the discussion of mass balances in continuous flow systems in the first part of the book, the authors explain and analyze water treatment processes in subsequent chapters by setting forth the relevant mass balance for the process, reactor geometry, and flow pattern under consideration. With its many examples and problem sets, Water Quality Engineering is recommended as a textbook for graduate courses in physical and chemical treatment processes for water and wastewater. By drawing together the most recent research findings and industry practices, this text is also recommended for professional environmental engineers in search of a contemporary perspective on water and wastewater treatment processes.

Physical Chemical Treatment of Water and Wastewater

Author: A. P. Sincero
Publisher: IWA Publishing
ISBN: 9781843390282
Format: PDF, ePub
Download Now
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

Water Chemistry

Author: Mark M. Benjamin
Publisher: Waveland Press
ISBN: 1478627018
Format: PDF
Download Now
Aquatic chemistry students need a solid foundation in fundamental concepts as well as numerical techniques for solving the variety of problems they will encounter as practicing engineers. For over a decade, Mark Benjamin’s Water Chemistry has brought to the classroom a balanced coverage of fundamentals and analytical algorithms in a student-friendly, accessible way. The text distinguishes itself with longer and more detailed explanations of the relevant chemistry and mathematics, allowing students to understand not only which techniques work best for a given application, but also why those techniques should be applied and what their limitations are. The end result is a solid, thorough framework for comprehending equilibrium in complex aquatic systems. The second edition includes a thorough introductory explanation of chemical reactivity and a new chapter on reaction kinetics, providing much-needed context, as well as full treatments of the tableau method and TOTH equation. The discussion of the thermodynamic perspective on chemical reactivity has been extensively revised. The entire book now integrates Visual Minteq—the most popular software for analyzing chemical equilibria—into the problem-solving approach. Additional exercises range more widely in difficulty, giving instructors more flexibility and diversity in their assignments.

Optimization of Micro Processes in Fine Particle Agglomeration by Pelleting Flocculation

Author: Benjamin Oyegbile
Publisher: CRC Press
ISBN: 1315671875
Format: PDF, ePub
Download Now
Efficient particle separation in order to meet stringent regulatory standards represent one of the biggest challenges facing the process industry operators today. Emerging environmental problems such as climate change, population growth and natural resource depletion make it more compelling to undertake research into alternative phase separation techniques and optimization of existing ones. Meeting this challenge requires innovative, revolutionary and integrated approach in the design and optimization of various unit processes in fine particle separation. Flocculation is widely used as an effective phase separation technique across many process industries such as water and wastewater treatment and in minerals processing. In this work, a new pre-treatment technique was developed using a patented bench scale reactor unit as a technical proof of concept. Furthermore, the book provides a valuable insight into the hydrodynamics and fluid-particle interactions within the agglomeration units. The relatively high solids content of the stable pellets (approximately 30 %) and very low residual turbidity of the post-sedimentation supernatant (7 NTU) clearly demonstrate the potential of this technique. In addition to significantly improving the subsequent solid-liquid separation efficiency, this study also showed that the effluent can be recycled back into the sewer network or utilized for non-portable reuse. The findings obtained from this research will be extremely useful in the scaling up and optimization of the reactor system.

Physical Chemical and Biological Treatment Processes for Water and Wastewater

Author: Tushar Kanti Sen
Publisher:
ISBN: 9781634833967
Format: PDF, ePub, Docs
Download Now
Water pollution occurs when toxic pollutants of varying kinds (organic, inorganic, radioactive and so on) are directly or indirectly discharged into water bodies without adequate treatment to remove such potential pollutants. Todays sources of these potential pollutants, which cause high deterioration of freshwater quality, are city sewage and industrial waste discharge, human agricultural practices, industrial waste disposal practices, mining activities, civil and structural work activities and obviously natural contamination with climate change. When our water is polluted, it is not only devastating to the environment but also to human health. Therefore, development of water and wastewater treatment processes to alleviate water pollution has been a challenging and demanding task for engineers, scientists and researchers. Perhaps this is even more challenging for underdeveloped and developing countries, where water and wastewater treatment facilities, knowledge and infrastructure are limited. Water and wastewater treatment processes are broad and often multidisciplinary in nature, comprising a mixture of research areas including physical, chemical and biological methods to remove or transform various potential pollutants. This is in hopes to achieve acceptable water quality and satisfy governmental and environmental protection agencies laws and regulations. With these objectives, this book has been written in order to provide various research results and compilation and up-to-date development on the current states of knowledge and techniques in the broad field of water and wastewater treatment processes. Basically, this book will give a comprehensive understanding and advancement and application of various physical, chemical and biological treatment methods in the reduction of potential pollutants (inorganics/organics) from water and wastewater. There are a total 18 book chapters contributed by large number of expert authors around the world, covering the following main research areas: Physical, chemical and biological water treatment processes such as adsorption, biosorption, coagulation/flocculation, electrocoagulation, denitration, membrane filtration/separation, photo-catalytic reduction, advanced oxidation, nutrients removal by struvite crystallisation and nanotechnology; Physical, chemical and biological methods for municipal wastewater and industrial wastewater treatment plants such as primary-secondary sludge treatments, anaerobic digestions, aerobic treatment, activated sludge processes, dewaterability by flocculants, pre-treatments of sludge and rheology of sludge in wastewater treatment; Various operational units/equipment and process control of wastewater treatment plant.

Applications of New Concepts of Physical Chemical Wastewater Treatment

Author: W.W. Eckenfelder
Publisher: Elsevier
ISBN: 1483187071
Format: PDF
Download Now
Applications of New Concepts of Physical-Chemical Wastewater Treatment deals with novel concepts of physical-chemical wastewater treatment, with particular reference to their engineering applications. Topics covered range from ultrahigh rate filtration of municipal wastewater to the applicability of carbon adsorption in the treatment of petrochemical wastewaters, along with regeneration of activated carbon and dewatering of physical-chemical sludges. Comprised of 31 chapters, this volume begins with a discussion on the use of physical-chemical methods for the treatment of municipal wastes and for direct wastewater treatment. The following chapters focus on the interrelationships between biological treatment and physicochemical treatment; some problems associated with the treatment of sewage by non-biological processes; treatment of wastes generated by metal finishing and engineering industries; and the principles and practice of granular carbon reactivation. The precipitation of calcium phosphate in wastewaters is also considered, together with the use of surface stirrers for ammonia desorption from ponds. This book will be a valuable resource for chemists, engineers, government officials, and environmental policymakers.

Stahlbetonbr cken

Author: Eugen Brühwiler
Publisher: Springer-Verlag
ISBN: 3709160707
Format: PDF, Mobi
Download Now
Die dritte Auflage des Klassikers Stahlbetonbrücken behandelt in umfassender Form die Grundlagen des konzeptionellen Entwurfs sowie der Projektierung, Ausführung und Erhaltung von Brücken aus Stahl- und Spannbeton. Diese Grundlagen sind entscheidend für die Ästhetik, Tragsicherheit, Dauerhaftigkeit und Wirtschaftlichkeit einer Brücke. Mit einfachen Modellen wird ein Höchstmaß an Klarheit und Verständlichkeit erreicht. Auf Detailberechnungen wird verzichtet, da sie meist von sekundärer Bedeutung sind und weder auf die Qualität noch auf die Wirtschaftlichkeit einer Brücke einen nennenswerten Einfluss haben. Für Qualität und Dauerhaftigkeit von Stahlbetonkonstruktionen spielen die Anordnung der Bewehrung und die konstruktive Ausbildung eine entscheidende Rolle, weshalb grundsätzliche Lösungsmöglichkeiten dargestellt werden. Die Themen Entwurf, Baustoffe, Einwirkungen, Ausrüstungsteile, Schrägkabelbrücken und Erhaltung wurden grundlegend überarbeitet und erweitert.

Technische Chemie

Author: Manfred Baerns
Publisher: John Wiley & Sons
ISBN: 3527674098
Format: PDF, ePub, Docs
Download Now
Das grundlegende Lehrbuch der Technischen Chemie mit hohem Praxisbezug jetzt in der zweiten Auflage: ?? beschreibt didaktisch äußerst gelungen die Bereiche – chemische Reaktionstechnik, Grundoperationen, Verfahrensentwicklung sowie chemische Prozesse ?? alle Kapitel wurden komplett überarbeitet und aktualisiert ?? NEU: umfangreiches Kapitel über Katalyse als Schlüsseltechnologie in der chemischen Industrie. Homogene und Heterogene Katalyse, aber auch Biokatalyse werden ausführlich behandelt ?? zahlreiche Fragen als Zusatzmaterial für Studenten online auf Wiley-Vch erhältlich ?? unterstützt das Lernen durch zahlreiche im Text eingestreute Rechenbeispiele, inklusive Lösung ?? setzt neben einem grundlegenden chemischen Verständnis und Grundkenntnissen der Physikalischen Chemie und Mathematik kein Spezialwissen voraus Ideal für Studierende der Chemie, des Chemieingenieurwesens und der Verfahrenstechnik in Bachelor- und Masterstudiengängen. Begleitmaterial für Dozenten verfügbar unter www.wiley-vch.de/textbooks Aus Rezensionen zur Vorauflage: „Endlich gibt es ein neues Lehrbuch auf Deutsch, das den Kernbereich der technischen Chemie umfassend abdeckt. Das Buch vereinigt auf einzigartige Weise das grundlegende Wissen aus den tragenden Säulen der technischen Chemie ... Technische Chemie deckt somit den Inhalt mehrerer älterer Lehrbücher ab...Hervorragend sind Sicherheitsaspekte in die Kapitel des Buches eingeflochten... Bei der Erarbeitung des Stoffs sind die zahlreichen Rechenbeispiele äußerst hilfreich, deren Musterlösungen leicht nachzuvollziehen sind... Insgesamt ist das Buch äußerst ansprechend und gelungen und hat das Potential, das grundlegende Standardwerk für das Studium in technischer Chemie sowie ein wichtiges Nachschlagewerk für die berufliche Praxis zu werden.“ Nachrichten aus der Chemie „...Neben der Darstellung der Grundlagen bestand ein Ziel der Autoren auch darin, Verknüpfungen zwischen den verschiedenen Sachgebieten aufzuzeigen. Dies ist bestens gelungen. Das gesamte Gebiet der technischen Chemie und der Verfahrenstechnik wird grundlegend, jedoch in komprimierter Form dargeboten.“ Filtrieren und Separieren