Download or read book As III Oxidation by Different Oxidizers written by Na Li and published by . This book was released on 2006 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic (III) is much more toxic and difficult in removal than Arsenic (V) by conventional arsenic removal technologies. However, As(III) may be more prevalent in groundwater than As(V). Furthermore, as of 23 January 2006 the EPA will require all public water facilities to meet the new standard of 10 ppb maximum for arsenic in drinking water. Therefore, a method for removing As(III) is urgently needed. A precondition for better As(III) removal is to oxidize it to As(V). In this study, hydrogen peroxide, air, potassium ferrate, and potassium permanganate were used as oxidizers, and it was found that both Fe(VI) and Mn(VII) are effective As(III) oxidizers. The impacts of pH, As(III) initial concentration, and the amount of oxidizers on the As(III) oxidation efficiency of Fe(VI) and Mn(VII) were also investigated. The results show that the pH value of tested water is a significant factor affecting the As(III) oxidation efficiency of Fe(VI). However, the As(III) oxidation efficiency of Mn(VII) does not depend much on pH. Although theoretical redox analyses suggest that Fe(VI) should be a better oxidizer than Mn(VII) throughout the entire pH range, experimental results show that Mn(VII) performs better than Fe(VI) for As(III) oxidation under acidic conditions due to the acid-catalyzed redox reaction between Fe(VI) and H2O. This study also investigates subsequent As(V) removal efficiency after As(III) oxidation by Fe(VI). The removal efficiency obtained in this research is very low. This is probably because of the low concentration of Fe(VI) in the solution and because the water was not flocculated.
Download or read book Oxidizing and Reducing Agents written by Steven D. Burke and published by Handbook of Reagents for Organ. This book was released on 1999-07-09 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidizing and Reducing Agents S. D. Burke University of Wisconsin at Madison, USA R. L. Danheiser Massachusetts Institute of Technology, Cambridge, USA Recognising the critical need for bringing a handy reference work that deals with the most popular reagents in synthesis to the laboratory of practising organic chemists, the Editors of the acclaimed Encyclopedia of Reagents for Organic Synthesis (EROS) have selected the most important and useful reagents employed in contemporary organic synthesis. Handbook of Reagents for Organic Synthesis: Oxidizing and Reducing Agents, provides the synthetic chemist with a convenient compendium of information concentrating on the most important and frequently employed reagents for the oxidation and reduction of organic compounds, extracted and updated from EROS. The inclusion of a bibliography of reviews and monographs, a compilation of Organic Syntheses procedures with tested experimental details and references to oxidizing and reducing agents will ensure that this handbook is both comprehensive and convenient.
Download or read book The Oxidation of Various Sugars and the Oxidizing Power of Different Tissues and Solutions written by Hugh McGuigan and published by . This book was released on 1907 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Situ Chemical Oxidation for Groundwater Remediation written by Robert L. Siegrist and published by Springer Science & Business Media. This book was released on 2011-02-25 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides comprehensive up-to-date descriptions of the principles and practices of in situ chemical oxidation (ISCO) for groundwater remediation based on a decade of intensive research, development, and demonstrations, and lessons learned from commercial field applications.
Download or read book Advanced Oxidation Processes for Water and Wastewater Treatment written by Simon Parsons and published by IWA Publishing. This book was released on 2004-03-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The suitability of Advanced Oxidation Processes (AOPs) for pollutant degradation was recognised in the early 1970s and much research and development work has been undertaken to commercialise some of these processes. AOPs have shown great potential in treating pollutants at both low and high concentrations and have found applications as diverse as ground water treatment, municipal wastewater sludge destruction and VOCs control. Advanced Oxidation Processes for Water and Wastewater Treatment is an overview of the advanced oxidation processes currently used or proposed for the remediation of water, wastewater, odours and sludge. The book contains two opening chapters which present introductions to advanced oxidation processes and a background to UV photolysis, seven chapters focusing on individual advanced oxidation processes and, finally, three chapters concentrating on selected applications of advanced oxidation processes. Advanced Oxidation Processes for Water and Wastewater Treatment will be invaluable to readers interested in water and wastewater treatment processes, including professionals and suppliers, as well as students and academics studying in this area. Dr Simon Parsons is a Senior Lecturer in Water Sciences at Cranfield University with ten years' experience of industrial and academic research and development.
Download or read book Rates of Soil Chemical Processes written by Donald L. Sparks and published by . This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinetics of soil chemical reactions. Methods of obtaining and analyzin kinetic data. Relaxation methods for studying kinetics of soil chemical phenomena. Kinetics of ion sorptionon humic substances. Kinetics of sorption/desorption processes in soils. Modelling nonequilibrium reactions of inorganic solutes in soil columns. Sorption kinetics of organic chemicals: methods, models, and mechanisms.
Download or read book Iodine Chemistry and Applications written by Tatsuo Kaiho and published by John Wiley & Sons. This book was released on 2014-10-09 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively covers iodine, its chemistry, and its role in functional materials, reagents, and compounds. • Provides an up-to-date, detailed overview of iodine chemistry with discussion on elemental aspects: characteristics, properties, iodides, and halogen bonding • Acts as a useful guide for readers to learn how to synthesize complex compounds using iodine reagents or intermediates • Describes traditional and modern processing techniques, such as starch, cupper, blowing out, and ion exchange resin methods • Includes seven detailed sections devoted to the applications of iodine: Characteristics, Production, Synthesis, Biological Applications, Industrial Applications, Bioorganic Chemistry and Environmental Chemistry, and Radioisotopes • Features hot topics in the field, such as hypervalent iodine-mediated cross coupling reactions, agrochemicals, dye sensitized solar cells, and therapeutic agents
Download or read book Environmental Arsenic in a Changing World written by Yongguan Zhu and published by CRC Press. This book was released on 2019-08-23 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for research and innovation aimed towards a holistic solution to the problem posed by the environmental toxin arsenic, with significant societal impact. The Congress has focused on cutting edge and breakthrough research in physical, chemical, toxicological, medical, agricultural and other specific issues on arsenic across a broader environmental realm. The Biennial Congress "Arsenic in the Environment" was first organized in Mexico City (As2006) followed by As2008 in Valencia (Spain), As2010 in Tainan (Chinese Taiwan), As2012 in Cairns (Australia), As2014 in Buenos Aires (Argentina) and As2016 in Stockholm (Sweden). The 7th International Congress As2018 was held July 1-6, 2018, in Beijing, P. R. China and was entitled Environmental Arsenic in a Changing World. The Congress addressed the broader context of arsenic research aligned on the following themes: Theme 1: Arsenic Behaviour in Changing Environmental Media Theme 2: Arsenic in a Changing Agricultural Ecosystem Theme 3: Health Impacts of Environmental Arsenic Theme 4: Technologies for Arsenic Immobilization and Clean Water Blueprints Theme 5: Sustainable Mitigation and Management Arsenic in drinking water (mainly groundwater) has emerged as an issue of global health concern. During last decade, the presence of arsenic in rice, possibly also other food of plant origins, has attained increasing attention. This is particularly true in the Asian countries, where the use of high arsenic groundwater as source of irrigation water and drinking water has been flagged as severe health concern. This has been accentuated by elevating arsenic concentrations in deep groundwater recharged from shallow high arsenic groundwater, which may have further detrimental effects on public health. Notably, China has been in the forefront of research on arsenic biogeochemical cycling, health effects of arsenic, technologies for arsenic removal, and sustainable mitigation measures. The Congress has attracted professionals involved in different segments of interdisciplinary research on arsenic in an open forum, and strengthened relations between academia, research institutions, government and non-governmental agencies, industries, and civil society organizations to share an optimal ambience for exchange of knowledge.
Download or read book Reaction Mechanisms in Environmental Engineering written by James G. Speight and published by Butterworth-Heinemann. This book was released on 2018-08-13 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction Mechanisms in Environmental Engineering: Analysis and Prediction describes the principles that govern chemical reactivity and demonstrates how these principles are used to yield more accurate predictions. The book will help users increase accuracy in analyzing and predicting the speed of pollutant conversion in engineered systems, such as water and wastewater treatment plants, or in natural systems, such as lakes and aquifers receiving industrial pollution. Using examples from air, water and soil, the book begins with a clear exposition of the properties of environmental and inorganic organic chemicals that is followed by partitioning and sorption processes and sorption and transformation processes. Kinetic principles are used to calculate or estimate the pollutants' half-lives, while physical-chemical properties of organic pollutants are used to estimate transformation mechanisms and rates. The book emphasizes how to develop an understanding of how physico-chemical and structural properties relate to transformations of organic pollutants. Offers a one-stop source for analyzing and predicting the speed of organic and inorganic reaction mechanisms for air, water and soil Provides the tools and methods for increased accuracy in analyzing and predicting the speed of pollutant conversion in engineered systems Uses kinetic principles and the physical-chemical properties of organic pollutants to estimate transformation mechanisms and rates
Download or read book On the Behavior of Various Aldehydes Ketones and Alcohols Towards Oxidizing Agents written by Willey Glover Denis and published by . This book was released on 1907 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Thermal Oxidation Systems for Volatile Organic Compounds written by David A Lewandowski and published by CRC Press. This book was released on 2017-12-14 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlling the emission of volatile organic compounds (VOC) became a very prominent environmental issue with the passage of the 1990 Clean Air Act Amendments, and will continue to be an environmental priority through the next decade. No single technology has played as important a role in the control of VOC emissions as thermal oxidation. It has the ability to destroy VOCs in a one-step process that produces innocuous by-products. Design of Thermal Oxidation Systems for Volatile Organic Compounds provides all the information needed for developing a thermal oxidation design in a single reference. It covers design, operation, and maintenance as well as the principles behind the classification of volatile organic compounds as hazardous waste. The author explores the primary purpose of thermal oxidizers and discusses their limitations. The book provides: practical, complete, and concise thermal oxidizer design principles an outline of state-of-the-art design principles a practical rather than theoretical approach real industrial examples in each chapter With the new regulations that affect VOC emissions, engineers from such diverse fields as oil refining, chemical distillation and separation processes, and pharmaceutical industries will need to design and implement thermal oxidation systems. Design of Thermal Oxidation Systems for Volatile Organic Compounds provides a reference to the entire design process, from conceptualization to operation and maintenance.
Download or read book Adsorption at Natural Minerals Water Interfaces written by Shaoxian Song and published by Springer Nature. This book was released on 2020-10-10 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the latest research regarding the adsorption of heavy metals, toxic ions, and organic compounds at the interfaces of water/minerals, such as mineralogical characterizations, surface chemistry, and modification of natural minerals as adsorbents, as well as the adsorption of cations, anions, and organic compounds in water. Presenting findings by the authors and their co-workers, the book helps readers grasp the principals and benefits of using minerals for water treatment, as well as the advanced technologies in the area developed over last 30 years, especially the last 10 years.
Download or read book Ozone Reaction Kinetics for Water and Wastewater Systems written by Fernando J. Beltran and published by CRC Press. This book was released on 2003-12-29 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in ozonation for drinking water and wastewater treatment has soared in recent years due to ozone's potency as a disinfectant, and the increasing need to control disinfection byproducts that arise from the chlorination of water and wastewater. Ozone Reaction Kinetics for Water and Wastewater Systems is a comprehensive reference that
Download or read book Acceleration of Cr III and Co II Oxidation by Mn II oxidizing Bacteria written by Karen Jeanne Murray and published by . This book was released on 2005 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur Biogeochemistry written by Jan P. Amend and published by Geological Society of America. This book was released on 2004 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Oxidation of Sucrose and Its Hydrolytic Splitting Products Glucose and Fructose by Means of Neutral and Alkaline Potassium Permanganate written by Cloyd Delson Looker and published by . This book was released on 1923 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Descriptive Inorganic Chemistry written by Geoff Rayner-Canham and published by Macmillan. This book was released on 2009-12-28 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bestselling text introduces descriptive inorganic chemistry in a less rigorous, less mathematical way. The book uses the periodic table as basis for understanding chemical properties and uncovering relationships between elements in different groups. Rayner-Canham and Overton’s text also familiarizes students with the historical background of inorganic chemistry as well as with its crucial applications (especially in regard to industrial processes and environmental issues), resulting in a comprehensive appreciation and understanding of the field and the role it will play in their fields of further study
