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Fundamental Mechanistic Studies Of The Photo Fenton Reaction For The Degradation Of Organic Pollutants
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Book Synopsis Fundamental Mechanistic Studies of the Photo-Fenton Reaction for the Degradation of Organic Pollutants by : Amilcar Machulek Jr.
Download or read book Fundamental Mechanistic Studies of the Photo-Fenton Reaction for the Degradation of Organic Pollutants written by Amilcar Machulek Jr. and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental Mechanistic Studies of the Photo-Fenton Reaction for the Degradation of Organic Pollutants.
Book Synopsis Organic Pollutants Ten Years After the Stockholm Convention by : Tomasz Puzyn
Download or read book Organic Pollutants Ten Years After the Stockholm Convention written by Tomasz Puzyn and published by BoD – Books on Demand. This book was released on 2012-02-24 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten years after coming into force of the Stockholm Convention on Persistent Organic Pollutants (POPs), a wide range of organic chemicals (industrial formulations, plant protection products, pharmaceuticals and personal care products, etc.) still poses the highest priority environmental hazard. The broadening of knowledge of organic pollutants (OPs) environmental fate and effects, as well as the decontamination techniques, is accompanied by an increase in significance of certain pollution sources (e.g. sewage sludge and dredged sediments application, textile industry), associated with a potential generation of new dangers for humans and natural ecosystems. The present book addresses these aspects, especially in the light of Organic Pollutants risk assessment as well as the practical application of novel analytical methods and techniques for removing OPs from the environment. Providing analytical and environmental update, this contribution can be particularly valuable for engineers and environmental scientists.
Book Synopsis Mechanistic Study of Pollutant Degradation by :
Download or read book Mechanistic Study of Pollutant Degradation written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental pollution has been a serious concern worldwide. Many degradation methods have been developed to clean sites contaminated with pollutants. More knowledge and better understanding in this field will help to protect our environment. The goal of the research in this thesis is to gain a better understanding of the mechanism of organic pollutant degradation in Fenton reactions and sonochemical reactions. Fenton degradation uses hydroxyl radical to oxidize organic compounds. The radical is produced by catalytic decomposition of hydrogen peroxide with Fe(II). Further research has found that addition of cyclodextrins can enhance degradation efficiency of hydrophobic organic pollutants. To study the mechanism of the enhancement, pollutant-cyclodextrin-Fe(II) aqueous systems were studied by fluorescence and NMR techniques. The results indicated the formation of pollutant/carboxymethyl-beta-cyclodextrin/Fe(II) ternary complexes in the solution. With the ternary complex, the catalyst Fe(II) becomes closer to the pollutant, therefore leading to more efficient hydroxyl radical attack on the pollutant. Additional studies showed that hydropropyl-beta-cyclodextrin, beta-cyclodextrin and -̀cyclodextrin bound pollutant well, but bound Fe(II) poorly. Sulfated-beta-cyclodextrin did not bind well with pollutant although it bound Fe(II) well. Sonochemical degradation is another important pollutant treatment method in practice. It was found that phenol sonolysis can be enhanced by volatile hydrogen atom scavengers such as carbon tetrachloride and perfluorohexane. The non-volatile hydrogen atom scavenger iodate did not enhance phenol degradation. The first order rate constant for aqueous phenol degradation increased by about 2.2-2.8 times in the presence of 150 uM carbon tetrachloride. In the presence of less than 1.5 uM perfluorohexane the first order rate constant increased by about 2.3 times. Hydroquinone was the major observed reaction intermediate both in the presence and absence of hydrogen atom scavengers. Hydroquinone yields were substantially higher in the presence of hydrogen atom scavengers, suggesting that hydroxyl radical pathways for phenol degradation were enhanced by the hydrogen atom scavengers. The additives investigated in this study have potential to improve pollutant degradation efficiency. Other fields may also benefit from the information gained in this study. For example the improvement could be achieved in synthetic processes that rely on hydroxyl radical as a key intermediate.
Book Synopsis Photochemical Technology by : A. M. Braun
Download or read book Photochemical Technology written by A. M. Braun and published by . This book was released on 1991-08 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the diverse industrial applications of preparative photochemistry. The authors treat topics of concern to both user and engineer: energy flux and sources, actinometry and the measurement of luminous power, photochemical reactors and the present and potential industrial applications of photochemical reactions. Domains that are simultaneously important in industrial application as well as rich in instruction are described: photohalogenation, sulfochlorination, photochemical oximation of hydrocarbons, photooxidation, and photopinacolization. Information on industrial processes, production capacities and safety concerns are examined in depth.
Book Synopsis Electro-Fenton Process by : Minghua Zhou
Download or read book Electro-Fenton Process written by Minghua Zhou and published by Springer. This book was released on 2017-11-25 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume discusses the theoretical fundamentals and potential applications of the original electro-Fenton (EF) process and its most innovative and promising versions, all of which are classified as electrochemical advanced oxidation processes. It consists of 15 chapters that review the latest advances and trends, material selection, reaction and reactor modeling and EF scale-up. It particularly focuses on the applications of EF process in the treatment of toxic and persistent organic pollutants in water and soil, showing highly efficient removal for both lab-scale and pre-pilot setups. Indeed, the EF technology is now mature enough to be brought to market, and this collection of contributions from leading experts in the field constitutes a timely milestone for scientists and engineers.
Book Synopsis Mechanistic and Kinetic Studies of Heterogeneous UV/fenton Process for the Oxidation of Aqueous Organic Pollutants by : Qiang Wu
Download or read book Mechanistic and Kinetic Studies of Heterogeneous UV/fenton Process for the Oxidation of Aqueous Organic Pollutants written by Qiang Wu and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Oxidation Processes (AOPs) in Water and Wastewater Treatment by : Aziz, Hamidi Abdul
Download or read book Advanced Oxidation Processes (AOPs) in Water and Wastewater Treatment written by Aziz, Hamidi Abdul and published by IGI Global. This book was released on 2018-08-03 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population growth and industrial development have increased the amount of wastewater generated by urban areas, and one of the major problems facing industrialized nations is the contamination of the environment by hazardous chemicals. Therefore, to meet the standards, suitable treatment alternatives should be established. Advanced Oxidation Processes (AOPs) in Water and Wastewater Treatment is a pivotal reference source that provides vital research on the current, green, and advanced technologies for wastewater treatment. While highlighting topics such as groundwater treatment, environmental legislation, and oxidation processes, this publication explores the contamination of environments by hazardous chemicals as well as the methods of decontamination and the reduction of negative effects on the environment. This book is a vital reference source for environmental engineers, waste authorities, solid waste management companies, landfill operators, legislators, environmentalists, and academicians seeking current research on achieving sustainable management for wastewater treatment.
Book Synopsis Water Pollution Sources and Purification: Challenges and Scope by : R. M. Belekar
Download or read book Water Pollution Sources and Purification: Challenges and Scope written by R. M. Belekar and published by Bentham Science Publishers. This book was released on 2022-09-27 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book helps readers to understand the fundamentals of water purification processes. Chapters in the book cover industrial purification techniques, while also exploring the future scope and current challenges in this field. Key Features - Seven chapters arranged and structured in a clear, coherent manner for understanding the broad topics. - Covers basic water purification techniques for safe drinking water - Covers defluoridation techniques - Explains the parameters affecting photocatalytic degradation of substituted benzoic acids. - Includes a case study for seasonal variations in pond water - Covers the role of nanotechnology in wastewater treatment - Covers the impact of water mismanagement on the environment with suggestions for preventive measures for sustainable water utilization This reference informs advanced readers (sustainable development professionals, post-graduate and research scholars) interested in water treatment processes. It also serves as a resource for courses in environmental chemistry, waste management and sustainability.
Book Synopsis Advanced Oxidation Processes by : Ciro Bustillo-Lecompte
Download or read book Advanced Oxidation Processes written by Ciro Bustillo-Lecompte and published by BoD – Books on Demand. This book was released on 2020-06-10 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes – Applications, Trends, and Prospects constitutes a comprehensive resource for civil, chemical, and environmental engineers researching in the field of water and wastewater treatment. The book covers the fundamentals, applications, and future work in Advanced Oxidation Processes (AOPs) as an attractive alternative and a complementary treatment option to conventional methods. This book also presents state-of-the-art research on AOPs and heterogeneous catalysis while covering recent progress and trends, including the application of AOPs at the laboratory, pilot, or industrial scale, the combination of AOPs with other technologies, hybrid processes, process intensification, reactor design, scale-up, and optimization. The book is divided into four sections: Introduction to Advanced Oxidation Processes, General Concepts of Heterogeneous Catalysis, Fenton and Ferrate in Wastewater Treatment, and Industrial Applications, Trends, and Prospects.
Book Synopsis Handbook of Material Weathering by : George Wypych
Download or read book Handbook of Material Weathering written by George Wypych and published by Elsevier. This book was released on 2018-02-22 with total page 983 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Material Weathering, Sixth Edition, is an essential guide to the effects of weathering on polymers and industrial products, presenting theory, stress factors, methods of weathering and testing and the effects of additives and environmental stress cracking. The book provides graphical illustrations and numerical data to examine the weathering of major polymers and industrial products, including mechanisms of degradation, effect of thermal processes, and characteristic changes in properties. The book also discusses recycling, corrosion and weathering, and the weathering of stone. This sixth edition updates this seminal work with recent developments and the latest data. Polymers and industrial plastics products are widely used in environments where they are vulnerable to the effects of weathering. Weathering stress factors can lead to deterioration or even complete failure. Material durability is therefore vital, and products for outdoor usage or actinic exposure are designed so that the effects of artificial and natural weathering are minimized. This book is an important reference source for those involved in studying material durability, producing materials for outdoor use and actinic exposure, research chemists in the photochemistry field, chemists and material scientists designing new materials, users of manufactured products, those who control the quality of manufactured products and students who want to apply their knowledge to real materials. Offers detailed coverage of theory, stress factors and methods of weathering Provides specific information and numerical data for 52 polymers and 42 groups of industrial products, including characteristic changes and degradation mechanisms Discusses major additional topics, such as weathered materials for recycling and the interrelation between corrosion and weathering Provides graphical illustrations and numerical data to examine the weathering of major polymers and industrial products
Book Synopsis Organic Pollutants Ten Years After the Stockholm Convention by : Tomasz Puzyn
Download or read book Organic Pollutants Ten Years After the Stockholm Convention written by Tomasz Puzyn and published by BoD – Books on Demand. This book was released on 2012-02-24 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten years after coming into force of the Stockholm Convention on Persistent Organic Pollutants (POPs), a wide range of organic chemicals (industrial formulations, plant protection products, pharmaceuticals and personal care products, etc.) still poses the highest priority environmental hazard. The broadening of knowledge of organic pollutants (OPs) environmental fate and effects, as well as the decontamination techniques, is accompanied by an increase in significance of certain pollution sources (e.g. sewage sludge and dredged sediments application, textile industry), associated with a potential generation of new dangers for humans and natural ecosystems. The present book addresses these aspects, especially in the light of Organic Pollutants risk assessment as well as the practical application of novel analytical methods and techniques for removing OPs from the environment. Providing analytical and environmental update, this contribution can be particularly valuable for engineers and environmental scientists.
Book Synopsis Advanced Oxidation Processes for Water Treatment by : Mihaela I. Stefan
Download or read book Advanced Oxidation Processes for Water Treatment written by Mihaela I. Stefan and published by IWA Publishing. This book was released on 2017-09-15 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes (AOPs) rely on the efficient generation of reactive radical species and are increasingly attractive options for water remediation from a wide variety of organic micropollutants of human health and/or environmental concern. Advanced Oxidation Processes for Water Treatment covers the key advanced oxidation processes developed for chemical contaminant destruction in polluted water sources, some of which have been implemented successfully at water treatment plants around the world. The book is structured in two sections; the first part is dedicated to the most relevant AOPs, whereas the topics covered in the second section include the photochemistry of chemical contaminants in the aquatic environment, advanced water treatment for water reuse, implementation of advanced treatment processes for drinking water production at a state-of-the art water treatment plant in Europe, advanced treatment of municipal and industrial wastewater, and green technologies for water remediation. The advanced oxidation processes discussed in the book cover the following aspects: - Process principles including the most recent scientific findings and interpretation. - Classes of compounds suitable to AOP treatment and examples of reaction mechanisms. - Chemical and photochemical degradation kinetics and modelling. - Water quality impact on process performance and practical considerations on process parameter selection criteria. - Process limitations and byproduct formation and strategies to mitigate any potential adverse effects on the treated water quality. - AOP equipment design and economics considerations. - Research studies and outcomes. - Case studies relevant to process implementation to water treatment. - Commercial applications. - Future research needs. Advanced Oxidation Processes for Water Treatment presents the most recent scientific and technological achievements in process understanding and implementation, and addresses to anyone interested in water remediation, including water industry professionals, consulting engineers, regulators, academics, students. Editor: Mihaela I. Stefan - Trojan Technologies - Canada
Book Synopsis Photo- and Electrochemical Water Treatment by : Halan Prakash
Download or read book Photo- and Electrochemical Water Treatment written by Halan Prakash and published by Royal Society of Chemistry. This book was released on 2022-12-21 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Globally, 2.1 billion people live without access to safe water, and about 159 million people collect their drinking water directly from surface water sources. This issue is particularly prominent in water-stressed areas, such as India, which has a rural population of around 700 million, 63 million of whom do not have access to clean water. Contaminants of Emerging Concern (CECs), of both a chemical and biological nature, are increasingly being detected in wastewater effluents around the world. Chemical CECs include pollutants such as pharmaceuticals and personal care products, pesticides, hormones, and endocrine disruptors, and biological CECs include antibiotic resistant bacteria, pathogenic protozoans, and viruses. New technologies to remove the contaminants from water are urgently needed and photochemical approaches offer an exciting array of possibilities. Covering chemical analysis, molecular biology methods and computational approaches important for the elucidation of mechanisms and evaluation of photochemical processes, this book presents advanced photochemical processes for the removal of CECs from water. Readers will find chapters on advanced photochemical treatment prototypes and pilot plants, and discussions on translation from lab to field-scale implementation. Examples include highly transparent materials, integrated membranes, adsorbents, and photocatalysts for enhancing the photochemical processes by direct sunlight induced reactions, photo-Fenton, and photo-electrochemical reactions. Discussing both the advantages and disadvantages of these technologies, this book is a great resource both for academics researching photocatalytic processes and for water treatment professionals.
Book Synopsis Photocatalytic Degradation of Dyes by : Sushma Dave
Download or read book Photocatalytic Degradation of Dyes written by Sushma Dave and published by Elsevier. This book was released on 2021-08-09 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photocatalytic Degradation of Dyes: Current Trends and Future Perspectives covers in detail current trends and future aspects on photocatalytic degradation of organic dyes using novel photocatalytic techniques such as metallic nanoparticles, heterogeneous and hybrid systems using visible light irradiation. It highlights the most recent scientific and technological achievements and importance of degradation of dyes in the textile effluent by simple environmental friendly approaches using eco-friendly catalysts. It is of assistance to everyone interested in bioremediation of effluents: professionals, consulting engineers, academicians, and research scholars as well. Describes the basic photocatalytic techniques and their application in wastewater treatment Covers the key reactive species accounting for the photodegradation of different dyes, providing helpful guidelines that could be applied to foster the development of efficient photodegradation systems Includes Description of a wide variety of catalysts and their application in degradation of dyes in the effluent of variable matrices (such as textile effluent, pharmaceutical industry effluent, food industry effluent) Presents the application of doped semiconductors in the degradation of dyes, hybrid systems and their importance in the dye degradation Describes the biological synthesis of metallic nanostructures and their use in dye degradation using visible range of light irradiation Discusses the mechanistic aspect of the dye degradation using photo catalysts
Book Synopsis Electrochemical Water and Wastewater Treatment by : Carlos Alberto Martínez-Huitle
Download or read book Electrochemical Water and Wastewater Treatment written by Carlos Alberto Martínez-Huitle and published by Butterworth-Heinemann. This book was released on 2018-05-29 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical Water Treatment Methods provides the fundamentals and applications of electrochemical water treatment methods to treat industrial effluents. Sections provide an overview of the technology, its current state of development, and how it is making its way into industry applications. Other sections deal with historical developments and the fundamentals of 18 methods, including coupled methods, such as Electrocoagulation, Peroxi-Coagulation and Electro-Fenton treatments. In addition, users will find discussions that relate to industries such as Pulp and Paper, Pharmaceuticals, Textiles, and Urban/Domestic wastewater, amongst others. Final sections present advantages, disadvantages and ways to combine renewable energy sources and electrochemical methods to design sustainable facilities. Environmental and Chemical Engineers will benefit from the extensive collection of methods and industry focused application cases, but researchers in environmental chemistry will also find interesting examples on how methods can be transitioned from lab environments to practical applications. Offers an excellent overview of the research advances and current applications of electrochemical technologies for water treatment Explains, in a comprehensive way, the fundamentals of different electrochemical uses and applications of different technologies Provides a large number of examples as evidence of practical applications of electrochemistry to environmental protection Explores the combination possibilities with other treatment technologies or emerging technologies for destroying water pollutants
Book Synopsis Photochemical Purification of Water and Air by : Thomas Oppenländer
Download or read book Photochemical Purification of Water and Air written by Thomas Oppenländer and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the treatment of water and exhaust gas using ultraviolet (UV) light offers both ecological and economic advantages, information on photo-initiated advanced oxidation technologies (AOTs) has been dispersed among various journals and proceedings until now. This authoritative and comprehensive handbook is the first to cover both the photochemical fundamentals and practical applications, including a description of advanced oxidation processes (AOPs) and process engineering of suitable photoreactors. The author presents various real-world examples, including economic aspects, while many references to current scientific literature facilitate access to current research topics relevant for water and air industries. Throughout, over 140 detailed figures visualize photochemical and photophysical phenomena, and help in interpreting important research results. From the foreword by James R. Bolton (President of Bolton Photosciences Inc., Executive Director of the International Ultraviolet Association (IUVA)): "Prof. Oppenländer is well qualified to write about the AOPs/AOTs, since he has contributed to this literature in a very significant manner. This book will be of considerable value to graduate students, science and engineering faculty, scientists, process engineers and sales engineers in industry, government regulators and health professionals."
Book Synopsis Advanced Oxidation Processes for Water and Wastewater Treatment by : Simon Parsons
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.
