Download or read book Analyzing and Removing Haloacetic Acids in Drinking Water written by Haojiang Zhou and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disinfection Byproducts in Drinking Water written by Yuefeng Xie and published by CRC Press. This book was released on 2003-08-27 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EPA has established regulations which classify four types of disinfection byproducts - TTHMs, haloacetic acids, bromate, and chlorite - and requires public water systems limit these byproducts to specific levels. Most of the information required to comply with these standards is either scattered throughout the literature or derived from confere
Download or read book Haloacetic Acid Removal Using Granular Activated Carbon written by Yuefeng F. Xie and published by International Water Assn. This book was released on 2005-01-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the proposed research were (1) t
Download or read book Analysis and Formation of Disinfection Byproducts in Drinking Water written by and published by Elsevier. This book was released on 2021-04-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drinking water disinfection has markedly reduced diseases causes by waterborne pathogenic microorganisms. However, an unintended consequence of disinfection and/or oxidation processes is the generation of disinfection byproducts (DBPs) which are formed from the reactions of disinfectants/oxidants with water matrix components. This volume of the Comprehensive Analytical Chemistry Handbook presents recent advances about the formation, identification, and quantification of inorganic and organic DBPs during oxidative processes. The book begins with a first chapter reviewing the most recent non-targeted screening approaches and workflows to characterize DBPs using low-, high-, and ultra-high-resolution mass spectrometry. The second chapter discusses the analysis of inorganic chloramines in waters using on-site and/or in-lab analytical methods. The third chapter provides an overview of the current knowledge about the mechanisms of chlorine dioxide reactions and byproducts formation. The fourth chapter presents some fundamental and practical aspects about ozonation processes in water treatment and provides an overview about ozone reaction mechanisms and byproducts formation. The fifth chapter focuses on the reactivity of halide ions, particularly bromide and iodide, with common oxidants and the role they play in determining the speciation of DBPs in treated waters. The chapter also presents strategies to mitigate the formation of DBPs during oxidation processes. Finally, the last chapter tackles the topic of DBPs formation during potable water reuse. It discusses the formation of DBPs of major concern in both memebrane-based and non-membrane-based potable water reuse treatment schemes.Researchers, water treatment specialists, and regulators will find in this book a valuable and compact resource on several key topics regarding the formation, identification, quantification, and mitigation of DBPs. - Identification and quantification of known and unknown DBPs - Formation of DBPs during different disinfection/oxidation processes - DBPs of concern in new technologies and/or new applications of existing technologies in water treatment
Download or read book Removal of Precursors to Disinfection ByProducts in Drinking Water written by and published by DIANE Publishing. This book was released on with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relative Dominance of Haloacetic Acids and Trihalomethanes in Treated Drinking Water written by and published by American Water Works Association. This book was released on 2002 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objectives of this project were to investigate the relative occurrence of HAAs and THMs in treated drinking waters and to determine water quality, treatment, and distribution system conditions that influence their relative concentrations. ... In all phases of this study, all four bromine- and chlorine-containing THMs and all nine bromine- and clorine-containing HAAs were measured." -- Executive summary.
Download or read book Development of a Novel Method for the Analysis of Haloacetic Acids in Drinking Water written by Li Zhang and published by International Water Assn. This book was released on 2005-01-01 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research was to develop a new approach for HAA analysis that was accurate, reproducible, sufficiently sensitive, and relatively safe and simple to perform. This method involved the use a CE ion analyzer for separation and detection of HAAs. Preliminary results from our laboratory using distilled and deionized water spiked with HAAs indicated that this approach was capable of separating and detecting all nine chlorinated and brominated HAAs. The method detection limit (MDL) for monochloroacetic acid measured in our laboratory was 32 ppb using a bubble cell without any sample pretreatment (i.e. direct aqueous sample injection). Given this unacceptably high MDL, more work was needed to fully develop and test the CE-based method especially with regard to improving method sensitivity.
Download or read book Disinfection By Products in Drinking Water written by M Fielding and published by Elsevier. This book was released on 1999-01-01 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together contributors from water regulators, and water suppliers in Europe and North America to discuss the main issues associated with reaching a cost-effective balance between microbial and chemical risks. Overviews of research are presented alongside illuminating case studies of the practical approaches taken by water companies and regulators on both sides of the Atlantic.
Download or read book Haloacetic Acids written by Li Zhang and published by . This book was released on 2004 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disinfection By products in Drinking Water written by M.N.V. Prasad and published by Butterworth-Heinemann. This book was released on 2020-02-18 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disinfection Byproducts in Drinking Water: Detection and Treatment presents cutting-edge research on how to understand the procedures, processes and considerations for detecting and treating disinfection by-products from drinking water, swimming pool water, and wastewater. The book begins with an overview of the different groups of Disinfection Byproducts (DBPs), such as: Trihalomethanes (THM), Halo acetic acids, and Haloacetonitrile (HAN). This coverage is quickly followed by a clear and rigorous exposition of the latest methods and technologies for the characterization, occurrence, formation, transformation and removal of DBPs in drinking water. Other chapters focus on ultraviolet-visible spectroscopy, electron spin resonance, and gas chromatography-mass spectrometry. Researchers will find a valuable resource to a breath of topics for DBP detection and treatment, including various recent techniques, such as microfiltration, nanofiltration membrane and nanotechnology. - Explains the latest research in detection, treatment processes and remediation technologies - Includes sampling, analytical and characterization methods and approaches - Covers cutting-edge research, including membrane based technologies, nanotechnology treatment technologies and bioremediation treatment technologies - Provides background information regarding contamination sources
Download or read book Method 552 3 determination of haloacetic acids and dalapon in drinking water by liquidliquid microextraction derivatization and gas chromatography with electron capture detection written by and published by DIANE Publishing. This book was released on with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drinking Water Disinfection By products Detection Formation and the Precursors Removal Study written by Runmiao Xue and published by . This book was released on 2017 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Haloacetic acids (HAAs) and trihalomethanes (THMs) are two groups of commonly found disinfection by-products (DBPs). Iodinated THMs and HAAs were observed after disinfection of water containing high level of iodide and are proved to be more toxic than their corresponding chlorinated and brominated species. In the presented dissertation, a novel rapid and sensitive high performance ion chromatography-tandem mass spectrometry (HPIC-MS/MS) method has been developed for simultaneous analysis of all these HAAs, bromate, bromide, iodide, and iodate, seventeen compounds in total, without any tedious sample preparation. Besides an efficient analytical method for the detection of DBPs, seeking for a green disinfectant with a low formation of DBPs is necessary. Peracetic acid (PAA) has been demonstrated to be a possible green disinfectant that has the potential to reduce the formation of THMs, HAAs and other DBPs. The formation potential of HAAs and THMs, especially the iodinated forms, from PAA disinfection has been investigated and compared with that from FC treatment. Another efficient way to control DBPs is to remove their precursors. When using breakpoint chlorination to disinfect the source water containing high concentration of ammonia, high levels of THMs and HAAs will form. In addition, if N-nitrosamine precursors are present, highly toxic N-nitrosamines may form during water treatment process. In the third part of this dissertation, zeolites and activated carbon were examined for ammonia and N-nitrosamine precursors removal when incorporated into drinking water treatment processes"--Abstract, page iv.
Download or read book Natural Organic Matter in Drinking Water written by Billy H. Kornegay and published by American Water Works Association. This book was released on 2000 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Chemicals Present in Industrial and Consumer Products Food and Drinking water written by IARC Working Group on the Evaluation of Carcinogenic Risks to Humans and published by IARC Monographs on the Evaluat. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the IARC Monographs provides an assessment of the carcinogenicity of 18 chemicals present in industrial and consumer products or food (natural constituents, contaminants, or flavorings) or occurring as water-chlorination by-products. The compounds evaluated include the widely used plasticizer di(2-ethylhexyl) phthalate and the food contaminant 4-methylimidazole. In view of the limited agent-specific information available from epidemiological studies, the IARC Monographs Working Group relied mainly on carcinogenicity bioassays, and mechanistic and other relevant data to evaluate the carcinogenic hazards to humans exposed to these agents.
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 Control of Disinfection By products in Drinking Water Systems written by Anastasia Nikolau and published by Nova Publishers. This book was released on 2007 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: The occurrence of disinfection by-products (DBPs) in drinking water has been an issue of major concern during several decades. The formation of many DBPs species during water disinfection has been documented, while new by-products are still being detected, as the analytical instrumentation available becomes more accurate and sensitive. Most of the DBPs have been proven to have toxic effects on living organisms; therefore they pose risks to human health during drinking water consumption. The factors affecting their formation have been extensively investigated, their transport and fate have been studied, modelling efforts for several of them have been performed, in order to understand better their behaviour and therefore try to minimise their occurrence in waters. Techniques for their removal from water have also been applied, and a variety of disinfection methods or combinations of disinfecting agents have been investigated with the aim to produce safe drinking water containing the minimum possible concentrations of DBPs. This book deals with the advances in control of DBPs in drinking water systems. Further than an providing an overview of existing disinfection techniques and by-products, up-to-date information on the parameters affecting the procedures of DBPs formation, analytical methods for their determination, toxicity, regulation, it pays special emphasis on the advanced treatment methods applied recently for DBPs control and presents recent promising findings as well as case studies in this field, as the relevant research is proceeding, producing more knowledge and practical solutions in regard to the disinfected drinking water quality.
Download or read book Haloforms and Related Compounds in Drinking Water written by Anastasia Nikolaou and published by Springer. This book was released on 2012-12-06 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drinking water quality has been a matter of concern for several decades. Disinfection of drinking water improves its microbiological quality and prevents disease outbreaks. However, continuously increasing scientific research concerns the presence of organic and inorganic contaminants in water. Many of these compounds, named haloforms, originate from the procedure of disinfection, being formed during reactions of disinfectants with natural organic matter present in water. Haloforms may possess carcinogenic or mutagenic properties; therefore minimization of their concentrations in drinking water is a critical issue. Regulatory measures are becoming more and more stringent, as new health effects become known and optimized high-sensitivity analytical methodologies are being developed. Up-to-date research findings concerning all these aspects have been collected, critically reviewed, summarized, and are presented and discussed in the present book.
