Download or read book The Investigation of Hydrogen Peroxide Photolysis as a Water Treatment Process written by Chih-Hsiang Liao and published by . This book was released on 1994 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Combined Use of Ozone and Hydrogen Peroxide peroxone as Disinfectant in Bangken Water Treatment Plant written by Candelaria L.. Sales and published by . This book was released on 1992 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Hydrogen Peroxide as an Alternative Oxidant to Chlorine in the Removal of Soluble Manganese Using the Oxide Coated Filter Media Technique written by Brad Allpike and published by . This book was released on 1998 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Download or read book Catalyzed Degradation of Hydrogen Peroxide written by Christopher Sommer and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficient water treatment, a process that has been revolutionized in recent decades, is in high demand as population growth and climate change create worsening global water scarcity. As a result, developments in nanofiltration and reverse osmosis filtration membranes have allowed for water treatment capabilities for challenging streams with high salinities and dissolved contaminants. However, persistent and ubiquitous issues of fouling and concentration polarization (CP) reduce efficiency and increase operational costs within treatment facilities. Thus, an entire field of research has been developed in order to determine long-term, holistic solutions to these issues to be implemented in future water treatment systems. This thesis discusses the current and predicted future state of global water scarcity and the current capabilities, applications, and limitations of membrane water treatment systems as well as some common implementations and practices used to mitigate the persistent issues of fouling and concentration polarization. This thesis also discusses in detail a study conducted by several researchers in the Penn State University Department of Chemical Engineering, which finds definitive conclusion for in-situ metallic salt nanoparticle catalytic coatings as a solution to energy losses due to fouling and CP. Finally, the catalase enzyme will be discussed as a possible catalytic coating in future reactive micromixing experiments.
Download or read book Hydrogen Peroxide written by Gilberto Aguilar and published by Nova Science Pub Incorporated. This book was released on 2012-10-15 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen peroxide (H2O2) is a highly reactive compound produced by cells after secondary reactions as a result of the leakage of electrons from the electron transport chain in mitochondria or as a consequence of other enzymatic reactions. This book examines the detection, applications and health implications of hydrogen peroxide. Topics discussed include the ambient conditions of hydrogen peroxide advanced oxidation processes for wastewater treatment; the electrochemical approach to quantify cellular hydrogen peroxide and monitor its release process from living cells; H2O2 signalling and role in inflammation; H2O2 as a useful oxidative stressor to investigate various intracellular events under pathological conditions; uses of hydrogen peroxide in aquaculture; H2O2 in regulating fungal viability and pathogenicity; massive production of H2O2 upon ATP synthase activiation; and H2O2 based green oxidation reactions.
Download or read book The Impacts of UV Direct Photolysis and UV hydrogen Peroxide Advanced Oxidation Processes on the Formation of Nitrosamines and Organic Chloramines from Subsequent Chlor am ination written by Monica Harvey and published by . This book was released on 2009 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultraviolet direct photolysis (UV) and the advanced oxidation process UV/H2O2 are new technologies in the water treatment industry. Both treatments can cause the transformation of organic compounds. Nitrosamines and organic chloramines are disinfection by-products (DBPs) formed from the reaction of organic nitrogen compounds during chlorination or chloramination (chlor(am)ination) disinfection. It is therefore possible for UV and UV/H 2O2 to affect the organic compound precursors for nitrosamines and organic chloramines and thus their formation from subsequent chlor(am)ination. The precursor compounds, UV and H2O2 doses used for UV or UV/H2O2, and alkalinity were found to have an effect on the formation of nitrosamines and organic chloramines during bench-scale experiments. Full scale studies found UV and UV/H2O2 had different effects on the formation of different nitrosamine species and organic chloramine concentrations, and that a potential correlation existed between the formation of organic chloramines from chlorination and the formation of N-nitrosodimethylamine from chloramination.
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 Hydrogen Peroxide written by Gilberto Aguilar and published by Nova Science Publishers. This book was released on 2014-05-14 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen peroxide (H2O2) is a highly reactive compound produced by cells after secondary reactions as a result of the leakage of electrons from the electron transport chain in mitochondria or as a consequence of other enzymatic reactions. This book examines the detection, applications and health implications of hydrogen peroxide. Topics discussed include the ambient conditions of hydrogen peroxide advanced oxidation processes for wastewater treatment; the electrochemical approach to quantify cellular hydrogen peroxide and monitor its release process from living cells; H2O2 signalling and role in inflammation; H2O2 as a useful oxidative stressor to investigate various intracellular events under pathological conditions; uses of hydrogen peroxide in aquaculture; H2O2 in regulating fungal viability and pathogenicity; massive production of H2O2 upon ATP synthase activiation; and H2O2 based green oxidation reactions.
Download or read book Fenton Process for Contaminant Control written by Julien Ogier and published by . This book was released on 2008 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrogeneration of Hydrogen Peroxide for Applications in Water wastewater Treatment written by Robertson Reid and published by . This book was released on 2017 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen peroxide (H2O2) is an effective, environmentally friendly oxidant used directly and in advanced oxidation processes for water and wastewater treatment. Although most H2O2 is currently manufactured offsite, concentrated, and trucked to sites where it must be safely stored and handled, it may also be generated on site electrochemically, commonly over a gas diffusion electrode (GDE). This technology has the potential to make processes more economical, feasible, available, and flexible depending on the application and the site. H2O2 electrogeneration has been heavily studied but there are particular knowledge gaps around performance of commercially available, unmodified, metal-free GDEs, contradictory evidence about optimum pH and cathode potential, a lack of studies using continuous mode reactors, weak quantification mass flows inside reactors, and a lack of studies looking at in situ treatment that take advantage of anodic oxidation and that do not require advanced oxidation. The present work addresses these gaps in two phases of experimentation (Chapters 3 and 4) and provides a brief comment on economic viability (Chapter 5) Firstly, effects of hydraulic retention time, cathode potential, reactor geometry, and pH in a continuous mode dual chamber reactor, including kinetic quantification and mass balance modelling are studied in Chapter 3. Performance shows a tradeoff where concentrations up to ~6500 mg L-1 may be generated but at a CE approaching 0% while CE near 100% can be maintained when H2O2 is produced at ~22 mg L-1. Additionally, a microbial electrochemical cell (MEC) is demonstrated to have a comparable current density to abiotic tests. Secondly, in Chapter 4, sulfur(IV) is demonstrated to be treated by both electrogenerated H2O2 and anodic oxidation in a single chamber electrolysis cell. CE is improved 3-8 times compared to H2O2 production alone, and near complete removal (at a low CE of 61.1%) or near 200% CE (at a low removal rate of only 27%) are achieved under various operating conditions, with intermediate values obtained by changing operating conditions. In summary, this work is establishes the maximum performance H2O2 electrogeneration under realistic conditions and shows how in situ treatment improves system efficiency by reducing H2O2 loss and taking advantage of anodic oxidation. The advantages of in situ production (and treatment) are complemented by a predicted comparable operating cost to traditional H2O2 technologies, suggesting that this technology is ready for scaling up and commercialization and has to potential to help secure safe water resources for the future.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Treatment with the Fenton Process written by Dominika Bury and published by CRC Press. This book was released on 2023-12-11 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of refractory organic compounds in wastewater is a global problem. Advanced oxidation processes, in general, and the Fenton oxidation process are alternative technologies for wastewater and water treatment. This book gives an overview of Fenton process principles, explains the main factors influencing this technology, includes applications, kinetic and thermodynamic calculations and presents a strong overview on the heterogeneous catalytic approach. It demonstrates that the iron-based heterogeneous Fenton process, including nanoparticles, a new complex solution, is highly efficient, environmentally friendly and can be suitable for wastewater treatment and industrial wastewater. FEATURES Describes in detail the heterogeneous Fenton process and process applications Analyzes the advantages and disadvantages of different catalysts available and their suitability to specific processes Provides economic analysis of the Fenton process in a ready-to-use package for industrial practitioners for adaptation into already existing industrially viable technologies Promotes a modern solution to the problem of degradation of hazardous compounds through ecological and environmentally friendly processes and the use of a catalyst that can be recycled Explains highly complex data in an understandable and reader-friendly way Intended for professionals, researchers, upper-level undergraduate and graduate students in environmental engineering, materials science, chemistry, and those who work in wastewater management. Chapters 3, 4, and 9 of this book are freely available as a downloadable Open Access PDF at http://www.taylorfrancis.com under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 4.0 license.
Download or read book Applications of Advanced Oxidation Processes AOPs in Drinking Water Treatment written by Antonio Gil and published by Springer. This book was released on 2018-07-03 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews the drinking water treatments in which AOPs display a high application potential. Firstly it reveals the typical supply sources and limitations of conventional technologies and critically reviews natural organic matter characterization and removal techniques, focusing mainly on AOP treatments. It then explores using AOPs for simultaneous inactivation/disinfection of several types of microorganisms, including highly resistant Cryptosporidium protozoa. Lastly, it discusses relevant miscellaneous topics, like the most promising AOP solid catalysts, the regime change of Fenton-like processes toward continuous reactors, the application of chemometrics for process optimization, the impact on disinfection byproducts and the tracing of toxicity during AOP treatments. This work is a useful reference for researchers and students involved in water technologies, including analytical and environmental chemistry, chemical and environmental engineering, toxicology, biotechnology, and related fields. It is intended to encourage industrial and public-health scientists and decision-makers to accelerate the application of AOPs as technological alternatives for the improvement of drinking water treatment plants.
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."
Download or read book Antimicrobial Resistance in Wastewater Treatment Processes written by Patricia L. Keen and published by John Wiley & Sons. This book was released on 2017-09-26 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antimicrobial resistance is arguably the greatest threat to worldwide human health. This book evaluates the roles of human water use, treatment and conservation in the development and spread of antimicrobial resistance. Designed as a companion volume to Antimicrobial Resistance in the Environment (Wiley-Blackwell, 2012), this book is a multi-disciplinary synthesis of topics related to antimicrobial resistance and wastewater treatment processes. Antimicrobial Resistance in Wastewater Treatment Processes assembles detailed discussions written by many of the world's best-known experts in microbiology, civil engineering, chemistry, environmental science, public health and related fields. The book presents a collection of subjects that includes: Current knowledge of the role of the environment in development and spread of antimicrobial resistance Chemical analysis of antibiotics in environmental samples Molecular methods for analysis of antimicrobial resistance genes Advanced wastewater treatment processes and antimicrobial resistance effects Public perception of risk related to health consequences of antimicrobial resistance Public health implications of antimicrobial resistance with focus on wastewater treatment processes Antimicrobial resistance has gained a foothold in the global consciousness as a serious public health threat. There is a much greater appreciation for the role of the environment in the dissemination of antimicrobial resistance and the effects of pollutants that can potentially promote development of resistance in bacteria. Contaminants released from wastewater treatment plants are a concern. In Antimicrobial Resistance in Wastewater Treatment Processes, readers will be guided through examinations of the current science related to this important health issue.
Download or read book Development in Wastewater Treatment Research and Processes written by Maulin P. Shah and published by Elsevier. This book was released on 2024-01-20 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes for Tannery Effluent provides a detailed overview of currently applied and tested sewage treatment technologies and he integration of advanced processes to remove trace organic contaminants and micro-organisms. The book discusses the potential of improved biological treatment to produce reusable wastewater, new municipal wastewater disinfection processes and the reduction of bacteria resistant to antibiotics as well as the effects of advanced oxidation processes on microbial and chemical contaminants. Advanced Oxidation Processes for Tannery Effluent features membrane bioreactors, moving bed bioreactors, light and solar technology, ozonation and immobilized heterogeneous photocatalysis, and provides an assessment of the potential of built wetlands integrated with advanced oxidation technologies to ensure wastewater recycling for reuse. The book discusses issues and standards for water reuse, the state of application of membrane bioreactors and the treatment of reverse osmosis concentrate for better water use in wastewater treatment. It presents the latest developments in the field of drinking water reuse and addresses various important issues in this context, such as proper public health protection, reliability and monitoring. Includes advanced oxidation processes for wastewater treatment Describes various methodologies to treat tannery effluent Outlines applications of different types of treatment strategies to cope up with tannery effluent Applies tertiary advanced oxidation process to remove toxic contaminants from wastewater Provides biochemical pathways of degraded contaminants through various oxidation processes
