Download or read book Evaluation of the Ultraviolet Ozone and Ultraviolet Oxidant Treatment of Pink Water Scholar s Choice Edition written by U S Environmental Protection Agency and published by . This book was released on 2015-02-16 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Evaluation of the ultraviolet ozone and ultraviolet oxidant treatment of pink water written by Milton Roth and published by . This book was released on 1979 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Ultraviolet ozone and Ultraviolet oxidant Treatment of Pink Water written by Milton Roth and published by . This book was released on 1979 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Ozone and Ultraviolet Oxidant Treatment of Pink Water written by Milton Roth and published by . This book was released on 1978 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pink water, a solution of trinitrotoluene (TNT and other nitro-bodies) is a major pollutant at AAP's which manufacture TNT and load, assemble and pack bombs and other ammunition. Two of the new technologies being investigated as alternatives to carbon adsorption, which is currently used to purify pink water, are covered in this report. One method involves the use of ultraviolet (uv) ozone; the other, uv-oxidant. In the uv-ozone study, a pilot system with a volume of 3.79 cubic meters per day was evaluated. This system reduced dissolved TNT and RDX to less than one milligram per liter with no by-products requiring disposal. A larger, 18.9 cubic meter per day plant, is proposed. In evaluating the uv-oxidant process, commercially available uv-light, water-purification units were used in conjunction with oxidants such as hydrogen peroxide or oxone, a blend of potassium persulfate oxidants. Variables such as film depth, dilutions, uv wavelength, and operation of the units in series rather than in parallel, were examined in optimizing the system. (Author).

Download or read book Ultraviolet ozone and Ultraviolet oxident Treatment of Pink Water written by Milton Roth and published by . This book was released on 1978 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet chemical Oxidation Treatment of RDX contaminated Waters at Picatinny Arsenal written by Elizabeth C. Fleming and published by . This book was released on 1995 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Ozone and Ultraviolet Light written by R. Hulsey and published by International Water Assn. This book was released on 2006-01-01 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project were to: *evaluate the benefits of ultraviolet light (UV) and ozone and determine how to integrate the two disinfection systems efficiently; *compare medium pressure UV light (MP-UV) with the combination of ozone and MP-UV to determine their effectiveness in meeting CT requirements for inactivation of Giardia, Cryptosporidium, and viruses, especially in cold water; and *compare the effects of MP-UV and the combination of ozone and MP-UV on the formation of disinfection by-products, DBP precursors, and the biostability/bacterial regrowth potential. Protozoan parasites are a major public health concern as evidenced by waterborne outbreaks of Cryptosporidium in the early 1990s. USEPA regulators have proposed new regulations which require site-specific means corresponding to the source water for the removal or inactivation of Cryptosporidium. For water systems with vulnerable sources, UV disinfection offers a cost effective approach. Utilities that have already installed ozone systems and those considering a multiple barrier approach to disinfection are interested in the effectiveness of UV alone and UV combined with ozone.

Download or read book Oxidation of Water Supply Refractory Species by Ozone with Ultraviolet Radiation written by William Glaze and published by . This book was released on 1980 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Light in Water and Wastewater Sanitation written by Willy J. Masschelein and published by CRC Press. This book was released on 2002-04-26 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several general books are available on ultraviolet light and its applications. However, this is the first comprehensive monograph that deals with its application to water and wastewater treatment. There is a rapidly growing interest in using UV light in water sanitation due to the increased knowledge of the potential health and environmental impacts of disinfection byproducts. Ultraviolet Light in Water and Wastewater Sanitation integrates the fundamental physics applicable to water and wastewater sanitation, the engineering aspects, and the practical experience in the field. The text analyzes the concerns associated with this application of UV light and brings together comprehensive information on the presently available UV technologies applicable to water and wastewater treatment including: lamp technologies, criteria of evaluation and choice of technology; fundamental principles; performance criteria for disinfection; design criteria and methods; synergistic use of UV and oxidants (advanced oxidation); and functional requirements and potential advantages and drawbacks of the technique. Ultraviolet Light in Water and Wastewater Sanitation is the only treatise currently available combining fundamental knowledge, recommendations for design, evaluations of performance, and future prospects for this application. Water and wastewater treatment professionals, water utility employees, governmental regulators, and chemists will find this book an essential and unique reference for a technology which has received growing regulatory acceptance.

Download or read book A Critical Evaluation of the Ozone UV Technology for Treatment of Water Contaminated with Organic Pollutants written by Maria Barbara Skorska and published by . This book was released on 1992 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Ozone and Ultraviolet Light written by and published by . This book was released on 2005 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The primary goal of this research was to evaluate ozone application followed by ultraviolet light (UV) to determine how to best operate the two disinfection systems efficiently for protection of the public health"--Executive summary.

Download or read book A Comprehensive Assessment of the Effects of Ozone and UV Radiation on the Molecular Weight and Optical Properties of Natural Water and Wastewater Effluent Dissolved Organic Matter written by Allison Lee Paul and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The work presented concentrations on better understanding the physical and chemical properties of dissolved organic matter (DOM) in two distinctly different aquatic environments. More specifically, examining the degradation of DOM before and after oxidation treatments with ozone, ultra violet radiation (UVR), and combination of the two. DOM consists of low and high molecular weight species such as humic substances, hydrophilic acids, carboxylic acids, amino acids, carbohydrates, and hydrocarbons [1]. DOM is a component of the carbon cycle, serves as a nutrient source, impacts treatment processes, and plays an important role in the transportation of aquatic contaminates. However, the exact structure of DOM is still not fully understood because of its complex nature and origin. Chapter 1 is a brief introduction to DOM, including its role in natural and wastewater systems. This chapter also discusses the different types of oxidation processes and the interactions of oxidation with DOM. Chapter 2 is a brief introduction to the four analytical techniques that will be used in the analysis of natural water DOM (NDOM) and wastewater effluent DOM (efDOM). The four analytical techniques include: size exclusion chromatography (SEC), time-of-flight mass spectrometry (TOF MS), ultra-violet visible (UV-Vis) absorption spectroscopy, and excitation-emission matrix fluorescence spectroscopy (EEMS). Chapter 3 is understanding DOM in a natural water system. DOM is a key component in freshwater ecosystems, and strongly influences the optical, chemical, and biological environment. Therefore, it becomes important to understand the nature of DOM within this system. Many natural water systems are treated for drinking water purposes at water treatment facilities with the use of chlorine. The formation of hazardous disinfection by-products (DBPs) from the interaction of chlorine with DOM has lead to finding alternative methods for disinfection. The use of ozone, UVR, and the combination of these two will be examined on the degradation and removed of DOM in a natural water system. Chapter 4 is understanding the degradation DOM in a wastewater system after oxidation treatment. Natural water systems are known to be more of terrestrial origin, whereas wastewater is of microbally-derived origin. Therefore, it is important to understand the effects of oxidants in terrestrially-derived and microbally-derived systems. Chapter 5 aims at comparing NDOM and efDOM before and after advanced oxidation treatment (AOP). AOP is the combination of ozone and UVR. More specifically, this research examines two types of AOP treatments: (1) ozone and UVR from an artificial radiation source and (2) ozone and UVR from a natural radiation source. The will be determined which type of AOP is best suited for the degradation and removal of DOM in both systems and to determine if AOP has the same or different effect of DOM of two distinctly different systems. Four analytical techniques will be used in combination in order to better understand DOM characteristics for the studies performed in chapters 3, 4, and 5. Multimethod analysis will be used to develop a broad view of the DOM characteristics and will aid in revealing similarities and differences in NDOM and efDOM before and after advanced oxidation treatments. These four techniques include: (1) size exclusion chromatography (SEC) to qualitatively and quantitatively understand the molecular weight distribution of DOM, (2) time-of-flight mass spectrometry (TOF MS) to separate DOM based on the mass-to-charge ratio, (3) ultraviolet-visable (UV-Vis) absorption spectroscopy to understand the chromophoric character of DOM, and (4) exitation-emission matrix fluorescence spectroscopy to understand the fluorophoric origin of DOM. Chapter 6 is understanding the effects of microalgae bioremediation on wastewater DOM. Microalgae serve a dual role: they are environmentally-friendly alternatives to disinfection/oxidation of wastewater and produce biomass that can be used as biofuels and feeds. The most suitable conditions for maximum microalgae growth, and therefore maximum biomass and feed production is still largely unknown because microalgae growth depends on factors such as pH and temperature, concentration of essential nutrients, including nitrogen, phosphorus, and organic carbon, availability of light, oxygen, and carbon dioxide. Therefore, it is important to determine where in the treatment process would be suitable for maximum algae growth and greatest degradation of DOM. Two analytical techniques will be used collectively to better understand the interactions of microalgae and DOM-size exclusion chromatography and excitation emission matrix fluorescence spectroscopy.

Download or read book Ozone in Water and Waste Water Treatment written by Water Resources Scientific Information Center and published by . This book was released on 1974 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impact of UV and UV H2O2 AOP on EDC Activity in Water written by K. Linden and published by International Water Assn. This book was released on 2009-08 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to assess, through u

Download or read book Ozone in Water Treatment written by Bruno Langlais and published by Routledge. This book was released on 2019-07-16 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of the Safe Drinking Water Act Amendments of 1986, many water utilities are reexamining their water treatment practices. Upcoming new regulations on disinfection and on disinfection by-products, in particular, are the primary driving forces for the big interest in ozone. It appears that ozone, with its strong disinfection capabilities, and apparently lower levels of disinfection by-products (compared to other disinfectants), may be the oxidant/disinfectant of choice. Many utilities currently using chlorine for oxidation may need to switch due to chlorine by-product concerns. Utilities using chloramines may need to use ozone to meet CT requirements. This book, prepared by 35 international experts, includes current technology on the design, operation, and control of the ozone process within a drinking water plant. It combines almost 100 years of European ozone design and operating experience with North American design/operations experience and the North American regulatory and utility operational environment. Topics covered include ozone chemistry, toxicology, design consideration, engineering aspects, design of retrofit systems, and the operation and economics of ozone technology. The book contains a "how to" section on ozone treatability studies, which explains what information can be learned using treatability studies, at what scale (bench, pilot, or demonstration plant), and how this information can be used to design full-scale systems. It also includes valuable tips regarding important operating practices, as well as guidance on retrofits and the unique issues involved with retrofitting the ozone process. With ozone being one of the hottest areas of interest in drinking water, this book will prove essential to all water utilities, design engineers, regulators, and plant managers and supervisors.

Download or read book Ozone in Water and Waste Water Treatment written by Water Resources Scientific Information Center and published by . This book was released on 1978 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ozone and Ultraviolet Radiation Disinfection for Small Community Water Systems written by Linden E. Witherell and published by . This book was released on 1979 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: