Download or read book Micropollutant Removal for Wastewater Reuse Using UV H2O2 Advanced Oxidation Process written by Zengquan Shu and published by . This book was released on 2012 with total page 97 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 Advanced Oxidation Processes for Micropollutant Remediation written by Mohammad Khalid and published by CRC Press. This book was released on 2023-08-17 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes for Micropollutant Remediation covers current state-of-the-art in advanced oxidation processes (AOP) for removal of micropollutants from industrial and pharmaceutical wastewater. It covers various AOP-based techniques like Fenton process, ozonation, hydrogen peroxide, ultraviolet radiation, electrochemical oxidation, ultrasonic irradiation, and other hybrid technologies. It focuses on aspects like impact of micropollutants on the ecosystems, different types of AOPs, their principles, applications, and challenges in implementing these techniques and their future perspectives. Features: Presents state-of-the-art in advanced oxidation processes (AOP) techniques along with hybrid technologies Covers latest advances in technological know-how for remediation of wastewater soiled with micropollutants Discusses pressing environmental pollution issues associated with AOPs needed for wastewater remediation Presents future perspective as well as techno-economic analysis in implementing various AOPs Reviews strategies to limit the micropollutants in water bodies This book is aimed at graduate students and researchers in chemical and industrial engineering, environmental science, and wastewater treatment.

Download or read book Emerging Application of Advanced Oxidation Processes for the Potable Reuse of Municipal Wastewater written by Zhong Zhang and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Municipal wastewater is being increasingly emphasized as a local, reliable source water supply for potable water. Potable reuse facilities frequently employ Full Advanced Treatment (FAT) trains, most often including microfiltration (MF), reverse osmosis (RO) and the UV/hydrogen peroxide (UV/H2O2) advanced oxidation process (AOP). However, the widespread implementation of FAT treatment is hindered by two major challenges: high cost and the disposal of RO concentrate (ROC). In this dissertation, we evaluated the potential of emerging AOPs, including ozonation followed by biological activated carbon (O3/BAC), the UV/chloramines AOP, and the UV/free chlorine AOP to deal with these two major challenges for FAT trains. We evaluated the application of O3/BAC to remove nitrate and organic contaminants from ROC to facilitate disposal to marine waters. We characterized the ability of the UV/chloramines and the UV/free chlorine AOPs to serve as more efficient alternatives to the UV/H2O2 AOP for the treatment of RO permeate. Chapter 1 introduces the FAT treatment process train, two of the major challenges facing these FAT trains, emerging AOPs to address these challenges, existing knowledge gaps and the objectives of this dissertation. Chapter 2 evaluates the feasibility of O3/BAC to treat RO concentrate at pilot-scale. The results suggest the potential for substantial synergy between potable reuse, and the removal of nitrogen and organic contaminants, enabling utilities to meet regulatory limits while partially offsetting the costs of producing a potable water supply. Chapter 3 develops a kinetic model for the UV/chloramines AOP when applied to RO permeate. The model is able to simultaneously predict the loss of chloramines and contaminants, such as 1,4-dioxane by determining quantum yields for chloramines and incorporating the subsequent reactions of NH2 radical. Initial cost estimates based on bench-scale results indicate UV/chloramines AOP using the residual chloramines in RO permeate could be a cost-effective alternative to the current UV/H2O2-chloramines AOP in some cases depending on the background chloramines concentrations and other constituents in RO permeate. Chapter 4 evaluates UV/free chlorine and UV/chloramines AOPs as alternatives to the UV/H2O2 AOP for treatment of RO permeate at pilot-scale. First, we characterized the speciation of the oxidants during AOP treatment and validated the ability of our kinetic models to accurately predict oxidant speciation. Second, we evaluated the ability of the different AOPs to degrade important target contaminants, such as 1,4-dioxane. Initial cost estimates indicate the UV/free chlorine AOP treatment to achieve 0.5-log 1,4-dioxane removal would be nearly half the cost for UV/H2O2 AOP. The cost for UV/chloramines AOP treatment could be comparable to UV/H2O2 AOP. Third, we demonstrated that after AOP treatment and chloramination for distribution systems, total halogenated DBP formation was comparable between these three AOPs. Chapter 5 summarizes the findings and contributions of this dissertation and proposes the issues that need to be addressed in future research to better understand the feasibility of these emerging AOPs in practice and to enable scale-up.

Download or read book Advanced Oxidation Processes for Wastewater Treatment written by Maulin P Shah and published by CRC Press. This book was released on 2022-03-09 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes for Wastewater Treatment: An Innovative Approach: This book highlights the importance of various innovative advanced oxidation technology to clean up the environment from pollution caused by human activities. It assesses the potential application of several existing bioremediation techniques and introduces new emerging technologies. This book is an updated vision of the existing advanced oxidation strategies with their limitations and challenges and their potential application to remove environmental pollutants. It also introduces the new trends and advances in environmental bioremediation technology with thorough discussion of recent developments in this field. This book highlights the importance of different innovative advanced oxidation process to deal with the ever-increasing number of environmental pollutants. Features: Illustrates the importance of various advance oxidation processes in effluent treatment plant Points out the reuse of the treated wastewater through emerging advance oxidation technologies for effluent treatment plant Highlights the recovery of resources from wastewater Pays attention to the occurrence of novel micro-pollutants Emphasizes the role of nanotechnology in bioremediation of pollutants Introduces new trends in environmental bioremediation

Download or read book UV advanced Oxidation Treatment of Micropollutants in Secondary Wastewaters written by Jacque-Ann Natacia Grant and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Advanced Oxidation Processes for Wastewater Treatment written by Suresh C. Ameta and published by Academic Press. This book was released on 2018-02-19 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes for Waste Water Treatment: Emerging Green Chemical Technology is a complete resource covering the fundamentals and applications of all Advanced Oxidation Processes (AOPs). This book presents the most up-to-date research on AOPs and makes the argument that AOPs offer an eco-friendly method of wastewater treatment. In addition to an overview of the fundamentals and applications, it details the reactive species involved, along with sections on reactor designs, thus helping readers understand and implement these methods. - Presents in-depth coverage of all types of Advanced Oxidation Processes, including Super Critical Water Oxidation, Photo-Fenton and Like Processes - Includes a fundamental review, applications, reactive species and reactor designs - Reviews applications across waste types, including industrial waste, domestic and municipal sewage, and hospital wastes

Download or read book Advanced Oxidation Processes for Micropollutant Remediation written by Mohammad Khalid and published by CRC Press. This book was released on 2023-08-17 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Oxidation Processes for Micropollutant Remediation covers current state-of-the-art in advanced oxidation processes (AOP) for removal of micropollutants from industrial and pharmaceutical wastewater. It covers various AOP-based techniques like Fenton process, ozonation, hydrogen peroxide, ultraviolet radiation, electrochemical oxidation, ultrasonic irradiation, and other hybrid technologies. It focuses on aspects like impact of micropollutants on the ecosystems, different types of AOPs, their principles, applications, and challenges in implementing these techniques and their future perspectives. Features: Presents state-of-the-art in advanced oxidation processes (AOP) techniques along with hybrid technologies Covers latest advances in technological know-how for remediation of wastewater soiled with micropollutants Discusses pressing environmental pollution issues associated with AOPs needed for wastewater remediation Presents future perspective as well as techno-economic analysis in implementing various AOPs Reviews strategies to limit the micropollutants in water bodies This book is aimed at graduate students and researchers in chemical and industrial engineering, environmental science, and wastewater treatment.

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.

Download or read book Removal and Degradation of Pharmaceutically Active Compounds in Wastewater Treatment written by Sara Rodriguez-Mozaz and published by Springer Nature. This book was released on 2021-08-01 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews water treatment technologies for the removal of pharmaceutically active compounds (PhACs). It provides the reader with an overview of state-of-the-art techniques and recent efforts to develop more sustainable approaches. After nearly two decades of research into the presence and impact of PhACs in the environment, they remain one of the hottest topics in the fields of environmental chemistry, toxicology and engineering. Accordingly, intensive research efforts are currently being devoted to water treatment technologies that can reduce the presence of these emerging contaminants in water bodies. This book examines various types of contaminated water from industry, hospitals and urban wastewater. It provides the reader with a range of potential solutions for water treatment and reuse, and addresses the advancement of analytical tools for evaluating the performance and efficiency of treatment technologies.

Download or read book Effectiveness of Engineered and Natural Wastewater Treatment Processes for the Removal of Trace Organics in Water Reuse written by Long Cheng and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their potential health impact on human beings and ecosystems, persistent trace organic compounds (TOrCs) have aroused concern from both the public and professionals. In particular, the discharge of pharmaceuticals, endocrine disrupters, disinfection byproducts and other TOrCs from wastewater treatment plants into the environment is an area of extensive current research. This work studies the fate and treatments of TOrCs, with emphases on advanced oxidation processes (AOPs). This work presents predicted removal efficiencies of a variety of engineered and natural processes for 55 frequently encountered TOrCs in treated wastewater, based on previously reported data and using existing predictive models. Correlations between physicochemical and biological properties of TOrCs and treatment performance were explored. Removal of TOrCs in all processes investigated in this study was found to be sensitive to matrix effects. Heuristic guidelines for selection of sequenced treatment processes for TOrCs management were established. A field reconnaissance of natural process of TOrCs was conducted by analyzing the occurrence and fate of a suite of TOrCs, as well as estrogenic activity in water and sediments in the Santa Cruz River, an effluent-dependent stream in Tucson, Arizona. Some TOrCs, including contributors to estrogenic activity, were rapidly attenuated with distance of travel in the river. TOrCs that have low biodegradability and low octanolwater partitioning coefficients were less removed. Results of independent experiments indicated potential indirect photodegradation of estrogenic compound by reactive species generated from photolysis of effluent organic matter. Utilizing advanced oxidation processes (AOPs) as tertiary water and wastewater treatment is an option to prevent discharge of TOrCs into the environment. Compared to conventional AOPs, the ability of generating hydroxyl radicals (•OH) without additional doses of hydrogen peroxide (H2O2) or ozone makes ultraviolet (UV) photolysis of ferric hydroxo complexes a novel AOP, especially in acidic environments. A Fe(III)/UV254 kinetic model, which combines Fenton-like mechanism, and photolyses of Fe3+, FeOH2+ and H2O2 was proposed and experimentally validated to predict Fenton-like and H2O2 direct UV254 photolysis scenarios, individually. Nevertheless, the model underestimated the ferrous ion development during Fe(III)/UV254 photolysis, perhaps due to the overprediction of the oxidation of Fe2+ by •OH. The UV/H2O2 AOP was also studied in this work. A predictive kinetic model was developed to evaluate process efficiency of oxidation of p-cresol by UV/H2O2 photolysis based on a complete reaction mechanism, including reactions of intermediates with •OH. Results of this study highlight the significance of consideration of radical scavenging effects by the byproducts from oxidation of organic matter in model prediction performance.

Download or read book Toxicity of Micropollutants During Advanced Oxidation Processes written by Jessica Richard and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main source for the detection of organic micropollutants in surface water is their incomplete removal during conventional waste water treatment processes. The use of advanced oxidation processes might therefore be a useful method to overcome this problem, and to degrade micropollutnats by the formation of highly reactive hydroxyl radicals. This study was therefore designed to investigate the toxicological properties (cytotoxic, genotoxic, mutagenic and estrogenic) of several substances before and after ozonation or UV/H2O2 treatment in either waste water treatment plant effluents or HPLC-water using toxicological in vitro methods. In general it can be said that ozonation as well as the oxidation using a combination of UV radiation and hydrogen peroxide are two useful methods for the removal of the here tested substances from the effluents of waste water treatment plants in regard to their degradation and to prevent the formation of toxic oxidation by-products. The successful use of toxicological in vitro methods for the detection of biological effects of waste water treatment plant effluents in combination with advanced oxidation processes has also been shown.

Download or read book Advanced Membrane Technology and Applications written by Norman N Li and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 1105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced membranes-from fundamentals and membrane chemistry to manufacturing and applications A hands-on reference for practicing professionals, Advanced Membrane Technology and Applications covers the fundamental principles and theories of separation and purification by membranes, the important membrane processes and systems, and major industrial applications. It goes far beyond the basics to address the formulation and industrial manufacture of membranes and applications. This practical guide: Includes coverage of all the major types of membranes: ultrafiltration; microfiltration; nanofiltration; reverse osmosis (including the recent high-flux and low-pressure membranes and anti-fouling membranes); membranes for gas separations; and membranes for fuel cell uses Addresses six major topics: membranes and applications in water and wastewater; membranes for biotechnology and chemical/biomedical applications; gas separations; membrane contractors and reactors; environmental and energy applications; and membrane materials and characterization Includes discussions of important strategic issues and the future of membrane technology With chapters contributed by leading experts in their specific areas and a practical focus, this is the definitive reference for professionals in industrial manufacturing and separations and research and development; practitioners in the manufacture and applications of membranes; scientists in water treatment, pharmaceutical, food, and fuel cell processing industries; process engineers; and others. It is also an excellent resource for researchers in industry and academia and graduate students taking courses in separations and membranes and related fields.

Download or read book Development of UVC Advanced Oxidation Photolysis Combined with Membrane Electro Bioreactor for Simultaneous Removal for Emerging Contaminants and Reduction of By products written by Sasan Fazeli and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of UVC advanced oxidation photolysis combined with membrane electro- bioreactor for simultaneous removal for emerging contaminants and reduction of by-products The continuous discharge of emerging contaminants (ECs) to the aquatic ecosystem generate concerns due to their unpredictable risks to human and environment. The presence of ECs in source water attributed to the conventional wastewater treatment facilities which are not fundamentally designed to completely eliminate these micropollutants at low concentrations. The aim of this research was to enhance the wastewater treatment to the level of its potential reuse as a source of water. The investigations were conducted at lab and pilot scale in 8 phases and several stages. Initially, the removal of selected ECs was optimized. Subsequently, the by-product formation and their identification were conducted. Then, the study focused on the by-product removal. In subsequent phases, the optimal technological parameters were verified in natural conditions, at the pilot scale in AOP (advance oxidation process) and AO-MEBR (membrane electro-bioreactor) facilities. Such approach permitted to study the removal of sulfamethoxazole (SMX), 17- alpha ethynyl estradiol (EE2), caffeine (CAF) and paracetamol (PCM) from various aqueous solutions (DI water, river water, effluent after wastewater treatment, and wastewater). A developed model investigated the effect of technological parameters on pharmaceuticals' removal efficiency and on by-product abatement. The results showed superior removal efficiency (99%) by both UV/H2O2 AOP and UV/O3 AOP of SMX, PCM, CAF and EE2 in comparison to sole UVC photolysis (30-40%). UV/O3 AOP demonstrated an elevated rate and removal by 10-15% higher than ozonation alone. The target ECs such as SMX, PCM were removed by more than 80% in effluent and more than 90% in river water during 60 minutes. The differences in the ECs and their byproducts removal from various aqueous matrices were discussed from the matrix properties perspectives, particularly non-target constituents (EfOM, NOM and sacavengers) present at different amounts in target matrices. The influence of operational parametrs (oxidant and UV doses, exposure time, pH) was defined, where particular usefulness of Surface Response Methodology was underlined. Overall, the SMX and by-products' abatement (99.99%) in different matrices by AO-MEBR hybrid system was evident. Four major SMX by-products (BP-99, BP-270, BP-288, BP-172) identified by LC-MS-MS, revealed longer lifetime and stability even after parent SMX ion removal. By applying optimal technological parameters, i.e. pH, oxidant dose and aeration rate, the by-products amounts were successfully controlled. Degradation mechanisms, reaction pathway and evolution of by-products during treatment in various aqueous solutions were conducted. Particular attention was paid on the effect of OH scavenging, the role of non-target constituencies, operation parameters, as well as aeration and superoxide radicals. Furthermore, the toxicity was decreased and energy consumption for target pollutant removal was minimized (20-25%). The AO-MEBR system not merely improved the quality of effluent with respect to refractory organic pollutants, but also likely promoted by-products and toxicity mitigation as well as saving energy leading to improved potential of water recovery from sewage.

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 Applications of the Microwave enhanced Advanced Oxidation Process written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Municipal wastewater treatment using biological nutrient removal generates large amounts of waste sludge. An effort is made to solubilize nutrients from sludge and reuse them in subsequent processes. The microwave-enhanced advanced oxidation (MW/H2O2-AOP) process using hydrogen peroxide as the oxidant was applied to the treatment of different organic slurries including wasted sludge, blood meal, and fish silage. The factors controlling phosphates, ammonia, and COD release into solution included inorganic acid addition, hydrogen peroxide dosage, treatment times and temperatures. Higher dosages and treatment temperatures yielded better solubilization of phosphates and ammonia. It was found that approximately all of the COD was solubilized at a treatment temperature of 80°C. Volatile fatty acid (VFA) concentrations were also found to have increased with the amount of inorganic acid added into treatment. Up to 25% of soluble COD was composed of acetic acid. Higher irradiation levels tended to be more effective in the solubilization of nutrients. In terms of trends of particle size distribution, detectable particles increased in size in acidic conditions, with the largest fraction of larger particles in a given sample being the treatment with highest irradiation power. In neutral condition treatments, the higher the irradiation power provided to the samples, the more spread out the particle sizes range. In alkaline condition treatments, an increase in smaller particles were found after treatment; higher power irradiation yielded significantly higher numbers of smaller particles. This study provided an insight into the athermal effects of theMW/H2O2-AOP. Blood meal solubilization for the purpose of its application as an organic feritilizer was investigated using theMW/H2O2-AOP. It was found that over the treatment temperature range of 60 to l20C, solids particle reduction, ammonia and orthophosphate production were achieved. Maximum solubility of chemical oxygen demand (C.