Download or read book Characterization of Dissolved Organic Matter DOM to Help Optimize Drinking Water Treatment written by Marc-André Philibert and published by . This book was released on 2011 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Characterisation of Dissolved Organic Matter DOM written by Declan Page and published by . This book was released on 2010-04 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in the Physicochemical Characterization of Dissolved Organic Matter written by Fernando Rosario-Ortiz and published by ACS Symposium. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of dissolved organic matter (DOM) has fascinated scientists and engineers for at least 60 years - from the initial efforts focused on measuring the concentrations of carbon in marine and aquatic systems, to the discovery of the role of DOM in the formation of disinfection byproducts, all the way to the new emphasis on the detailed understanding of the different functional groups and basic structural features which are the basis for the physicochemical properties of the material. After 50 years of work in the area, there are still many questions regarding DOM. The study of dissolved organic matter (DOM) has fascinated researchers in different fields of science and engineering for many decades. The impact that DOM has on a wide array of environmental processes has resulted in the development of a multidisciplinary community of researchers all focusing on using different analytical techniques and experimental design to better understand DOM. This book offers select case studies focusing on the advanced characterization of DOM in different environments and with respect to different processes. It results from the conclusion of a symposium that E. M. Thurman and I had organized for the 245th meeting of the American Chemical Society, which was held on April 7-11, 2013 in New Orleans, Louisiana.

Download or read book Natural Organic Matter in Water written by Mika Silanpää and published by Butterworth-Heinemann. This book was released on 2014-10-07 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 77 percent of the freshwater used in the United States comes from surface-water sources and is subject to natural organic matter contamination according to the United States Geological Survey. This presents a distinct challenge to water treatment engineers. An essential resource to the latest breakthroughs in the characterization, treatment and removal of natural organic matter (NOM) from drinking water, Natural Organic Matter in Waters: Characterization and Treatment Methods focuses on advance filtration and treatment options, and processes for reducing disinfection byproducts. Based on the author’s years of research and field experience, this book begins with the characterization of NOM including: general parameters, isolation and concentration, fractionation, composition and structural analysis and biological testing. This is followed by removal methods such as inorganic coagulants, polyelectrolytes and composite coagulants. Electrochemical and membranes removal methods such as: electrocoagulation, electrochemical oxidation, microfiltration and ultrafiltration, nanofiltration and membrane fouling. Covers conventional as well as advanced NOM removal methods Includes characterization methods of NOM Explains removal methods such as: removal by coagulation, electrochemical, advanced oxidation, and integrated methods

Download or read book Biodegradable Organic Matter in Drinking Water Treatment and Distribution written by Michèle Prévost and published by . This book was released on 2005 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation covers all aspects of biodegradable organic matter in drinking water by addressing the improvement made to water treatment and quality during the last 20 years. This book is a must for researchers and a valuable reference and guidance tool for all water producers.

Download or read book Organic geochemistry of natural waters written by E.M. Thurman and published by Springer Science & Business Media. This book was released on 1985-04-30 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written as a reference on organic substances in natural waters and as a supplementary text for graduate students in water chemistry. The chapters address five topics: amount, origin, nature, geochemistry, and characterization of organic carbon. Of these topics, the main themes are the amount and nature of dissolved organic carbon in natural waters (mainly fresh water, although seawater is briefly discussed). It is hoped that the reader is familiar with organic chemistry, but it is not necessary. The first part of the book is a general overview of the amount and general nature of dissolved organic carbon. Over the past 10 years there has been an exponential increase in knowledge on organic substances in water, which is the result of money directed toward the research of organic compounds, of new methods of analysis (such as gas chromatography and mass spectrometry), and most importantly, the result of more people working in this field. Because of this exponential increase in knowledge, there is a need to pull together and summarize the data that has accumulated from many disciplines over the last decade.

Download or read book The Effects of Dissolved Organic Matter on Pollutant Removal and Formation in Aquatic Environment written by Meng-Horng Hsu and published by . This book was released on 2012 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrophobic organic pollutants (HOPs), such as polyaromatic hydrocarbons primarily from automobile exhausts and dissolved organic matter (DOM) are ubiquitous in the aquatic environment. The association between DOM and HOPs as a bound interaction of DOM-HOPs minimizes the bioavailability of free HOPs and their potential health effects. In addition, DOM is also the precursor of disinfection by-products involving the disinfection treatment processes. It is very important to understand the relationship between free and bound HOPs, disinfection by-products, and DOM in drinking water treatment, stormwater runoff and dry weather flow of aquatic environment. This thesis will explore the binding phenomenon between HOPs and DOM in raw and treated water from water treatment plants, after powdered activated carbon treatment, and in stormwater runoff and dry weather flow. This thesis also introduced the analytical methodologies for characterizing DOM and the hazardous potential of HOPs and thus understanding their relationship. DOM characteristics were measured for: 1) total concentration of organic carbon by dissolved organic carbon (DOC), 2) aromaticity by UV absorbance and specific UV absorbance (SUVA), and 3) size distribution by ultrafiltration (UF), 4) polarity by polarity rapid assessment method (PRAM), 5) UV and fluorescent chemical components by UV spectrometer and fluorescence excitation-emission matrix (EEM) and fluorescence regional integration (FRI). Hazardous potential of HOPs was measured by fluorescence quenching determined partition coefficient KDOM. Studies have been completed and showed that monitoring both the free and bound forms of HOPs as well as disinfection by-products (such as, trihalomethanes) and their relationship to DOM during drinking water treatment processes is necessary to better understand drinking water quality and give more effective suggestions to optimize treatment processes. In addition, this work showed the relationship between DOM and HOPs in equilibrium with DOM-HOPs needs definition on a seasonal basis to understand the bioavailability of HOPs in dry weather flow and stormwater runoff events. The determination of free and total HOPs has not been considered in the California "State Implementation Plan" for water quality-based effluent limits of HOPs. A method using a standard probe- perylene has been developed to be able to evaluate these situations on a site specific basis since DOM is site specific. Key findings of this study were: 1) DOM characteristics are different from site to site and affect pollutants removal and formation. 2) Bulk SUVA shows a positive correlation with Log KDOM (R2=74%). Thus, DOM with more aromatic structure can result in higher binding between HOPs and DOM. 3) DOM with higher concentration, aromaticity, and molecular weight can have more ability to form THMs. 4) Under the conditions studied, PAC (20 mg/L) is an effective method to control both THMs and the hazard potential of HOPs. 5) DOM in urban runoff with higher molecular weight and aromaticity can associate with more HOPs. As a result, the distribution of HOPs affected by DOM in urban runoff needs definition on a seasonal basis and runoff types.

Download or read book Natural Organic Matter in Water written by Mika Sillanpaa and published by Butterworth-Heinemann. This book was released on 2022-10-17 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Organic Matter in Water: Characterization, Treatment Methods, and Climate Change Impact, Second Edition focuses on advanced filtration and treatment options, as well as processes for reducing disinfection by-products, making it an essential resource on the latest breakthroughs in the characterization, treatment and removal of natural organic matter (NOM) from drinking water. Based on the editor’s years of research and field experience, the book covers general parameters, isolation and concentration, fractionation, composition and structural analysis, and biological testing, along with removal methods such as inorganic coagulants, polyelectrolytes and composite coagulants. In addition, sections cover electrochemical and membranes removal methods such as electrocoagulation, electrochemical oxidation, microfiltration and ultrafiltration, nanofiltration, and membrane fouling. This book is a valuable guide for engineers and researchers looking to integrate methods, processes and technologies to achieve desired affects. Provides a summary of up-to-date information surrounding NOM Presents enhanced knowledge on treatment strategies for the removal of NOM Covers conventional as well as advanced NOM removal methods

Download or read book Aquatic Organic Matter Fluorescence written by Paula G. Coble and published by Cambridge University Press. This book was released on 2014-07-14 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: A core text on principles, laboratory/field methodologies, and data interpretation for fluorescence applications in aquatic science, for advanced students and researchers.

Download or read book Natural Organic Matter and Disinfection By products Characterization and Control in Drinking Water written by Sylvia E. Barrett and published by . This book was released on 2000 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many by-products of water disinfection that are still not fully understood and can be potentially harmful. In this volume all the current research in this area is discussed, along with an examination of the role of NOM (natural organic matter) and its relationship to DBP (disinfection by-product) formation and control in drinking water. Understanding the relationship of NOM to DBP may well lead to new techniques for analyzing and treating water and enable reasonable choices to be made for source-water protection, treatment plant process optimization, and distribution system operation to control DBP's. This volume emphasizes the characterization and reactivity of polar natural organic matter. It examines analytical methods which better characterize NOM and determines some of the polar and nonvolatile DBP forms. It presents innovative new methods, sich as capillary electrophoresis for haloacetic aceids and LC/MS for the identification of polar dinking water DBPs.

Download or read book Characterization of Dissolved Organic Matter in Wastewater Using Liquid Chromatography high Resolution Mass Spectrometry written by Yaroslav Verkh and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Individual hazardous chemicals and substance mixtures with synergistic toxicity ef-fects occur in the dissolved organic matter (DOM) of wastewater and negatively im-pact human health. Yet a large number of chemicals and their treatment by-products in wastewater makes the tracking of individual compounds nearly impossible and de-mands new analytical strategies. The thesis describes the development and evaluation of non-targeted and suspect anal-ysis methods aimed at the transformation of DOM and micro-contaminants of interest during wastewater treatment using liquid chromatography-high-resolution mass spec-trometry (LC-HRMS) data. On one hand, a non-targeted method to track transformations of DOM in a multiphase wastewater treatment using LC-HRMS data was developed. LC-MS signals were ex-tracted, aligned, and had their isotopologues clustered and elemental composition pre-dicted using open license software MZmine 2 in a way that conceptually prioritized the detection of anthropogenic compounds.

Download or read book Characterization and Removal of Natural Organic Matter NOM in Drinking Water Treatment Processes written by 尤寧洛 and published by . This book was released on 2017 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterisation of Dissolved Organic Matter in Water Treatment Using Ultra high Resolution Techniques written by Alan James Smith and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization and Identification of Dissolved Organic Matter Sources in a Drinking Water Reservoir Using Fluorescence Spectroscopy Methods written by 王家緯 and published by . This book was released on 2018 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Insights Into Disinfection Byproduct Formation and Control written by Ashley Dale Pifer and published by . This book was released on 2012 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods were developed for application of asymmetric flow field-flow fractionation (AF4) and fluorescence parallel factor (PARAFAC) analysis to raw and treated samples from drinking water sources to improve characterizations of dissolved organic matter (DOM) and discover DOM properties correlated to disinfection byproduct (DBP) formation potential (FP). Raw water samples were collected from a reservoir, adjusted to pH 6, 7, and 8 and subjected to (1) jar tests using aluminum sulfate (alum) and (2) treatment with magnetic ion exchange (MIEX®) resin. Both treatments were followed by DBPFP tests at pH 7. AF4 was used to size DOM in raw and alum treated samples at pH 6 and 8. AF4 fractograms showed that DOM removal was more effective at pH 6 than at pH 8, and preferential removal of larger-sized DOM occurred at pH 6 but not at pH 8. A fluorescence-PARAFAC model was constructed using excitation-emission matrices (EEMs) from all samples. A strong linear correlation (r 2 = 0.87) between chloroform FP and a humic-like PARAFAC component (C1) was developed. This correlation was a significant improvement over the correlation (r 2 = 0.03) between chloroform FP and specific ultraviolet absorbance at 254 nm (SUVA254), a DBPFP surrogate commonly used in drinking water treatment plants to optimize DOM removal processes. This indicated that chloroform FP-C1 correlations were not treatment-specific. Alum coagulation at pH 6, 7, and 8 and DBPFP tests at pH 7 were performed on a set of raw waters from eleven drinking water treatment plants from across the United States. AF4 was used to size DOM before and after alum coagulation, and showed similar results to the earlier study, i.e., increased removal at pH 6 compared to pH 8. A fluorescence-PARAFAC model was constructed and total trihalomethane (TTHM) FP was strongly correlated (r 2 = 0.91) to C1 for eight water sources. TTHMFP-SUVA254 correlations for ten locations were weak (r 2 = 0.15), which indicated that C1 was an improved DBPFP surrogate relative to SUVA254 and could be used as a surrogate to select and optimize DBP precursor removal processes.

Download or read book Characterization and Remediation of Dissolved Organic Matter in Produced Oilfield Waters written by Xiaojing Wang and published by . This book was released on 2011 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dissolved Organic Matter (DOM) has been studied intensively in many water sources such as lakes and seas due to its recalcitrance, its reactivity with other pollutants in water, its role in global carbon cycling, and the fact that DOM is a precursor of carcinogenic disinfection byproducts. The composition of DOM is complex and contains thousands of chemicals. Compared to DOM in other types of water bodies (fresh and sea waters), little research has been conducted on DOM in produced oilfield waters, and its detailed composition remains largely unknown. This works aims to understand DOM in oilfield waters through a thorough chemical characterization and examination on mechanisms for its removal through both biotic and abiotic methods, including: (1) Solid Phase Extraction of DOM; (2) FTIR and high resolution mass characterization of DOM; (3) remediation of DOM through photodegradation, clay adsorption, chemical flocculation, biodegradation, and volatilization.

Download or read book Characterization of Natural Organic Matter in Drinking Water written by Jean-Phillipe Croue and published by American Water Works Association. This book was released on 2000 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research reported on here sought to characterize natural organic matter (NOM) in dilute solutions and to isolate it without altering its properties, so that the effect of NOM in drinking water may be considered. Several NOM isolation methods were evaluated, including evaporation, reverse osmosis, nanofiltration, and adsorption. The effects of such isolation procedures on NOM's chemical composition and reactivity were considered. Based on these studies, the report presents conclusions regarding the feasibility and adequacy of in situ and ex situ techniques. Croue is affiliated with Laboratoire de Chimie de l'Eau de l'Environment, Universite de Poiters. Annotation copyrighted by Book News, Inc., Portland, OR.