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Author : Shanshan Jin
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.:/5 (539 download)
Download or read book Fluence Measurement for Polychromatic UV Disinfection Systems written by Shanshan Jin and published by . This book was released on 2003 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : American Water Works Association
ISBN 13 : 1583214364
Total Pages : 76 pages
Book Rating : 4.5/5 (832 download)
Download or read book Fluence Monitoring in UV Disinfection Systems written by and published by American Water Works Association. This book was released on 2006 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research described in this report focused on the photolysis of a chemical substance giving a linear relation between the formation level of the photo product and the applied dose. Objectives were to: develop an online fluence meter based on a Uvsensitive chemical for which the formation level of the photo product has a clear relation with the applied UV dose, and to find naturally occurring substances or chemicals to be dosed that would be sensitive towards UVC light (200-285 nm) and would give accurately measurable photo products in the 0-1,000 J/m2 dose range. Based on an initial study, nitrate as a naturally occurring compound and the ferric ion/ ferrous ion (Fe3+/Fe2+) and hydrogen peroxide (H2O2)/benzoate systems as chemicals to be dosed were selected for further research.
Author : Karl G. Linden
Publisher : IWA Publishing
ISBN 13 : 1843398400
Total Pages : 140 pages
Book Rating : 4.8/5 (433 download)
Download or read book Disinfection Efficiency and Dose Measurement of Polychromatic UV Light written by Karl G. Linden and published by IWA Publishing. This book was released on 2004-01-01 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is currently intense interest in the use of ultraviolet technology for helping to meet future regulations relating to improved microbial inactivation and decreased disinfection byproducts (DBPs). Much of this interest has been fueled by recent research indicating the effectiveness of UV technologies for the inactivation of Cryptosporidium. This scientific discovery, combined with proposed regulations concerning DBPs in the United States, has resulted in a need to evaluate the feasibility and effectiveness of UV irradiation for use as a disinfectant for drinking water.The objectives of this project were to:(1) develop and evaluate physical, chemical, and biological methods for calculating effective germicidal UV dose from medium-pressure (MP) and Pulsed-UV (P-UV) lamps;(2) establish a UV dose/log inactivation relationship for specific bacterial and viral indicators for MP and P-UV lamps;(3) determine the extent of photoreactivation and dark repair of heterotrophic bacteria after treatment by MP and P-UV lamps; and(4) compare the ability of MP and P-UV lamps to inactivate Cryptosporidium. Originally published by AwwaRF for its subscribers in 2003 This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Author :
Publisher : American Water Works Association
ISBN 13 : 9781583213414
Total Pages : 112 pages
Book Rating : 4.2/5 (134 download)
Download or read book Inactivation of Pathogens with Innovative UV Technologies written by and published by American Water Works Association. This book was released on 2004 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research studied low pressure(LP), low pressure-high-output (LPHO, medium pressure(MP) and pulsed (PUV) UV Systems and their effects on various pathogens. Among the findings were: bacteria is more susceptible to UV light than viruses; some strains of E.coli had different dose responses without explanation; adenovirus serotypes 40 and 41 are highly resistant to UV inactivation and a residual disinfection process is recommended to follow UV disinfection. All details of the study and models are discussed thoroughly.
Author : Ian Mayor-Smith
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Polychromatic Fluence written by Ian Mayor-Smith and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wim A. M. Hijnen
Publisher : IWA Publishing
ISBN 13 : 184339376X
Total Pages : 205 pages
Book Rating : 4.8/5 (433 download)
Download or read book Quantitative Methods to Assess Capacity of Water Treatment to Eliminate Micro-Organisms written by Wim A. M. Hijnen and published by IWA Publishing. This book was released on 2010-12-16 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special Offer: KWR Drinking Water Treatment Set - Buy all five books together and save a total £119! Ever since the recognition of the important role of water in the transmission of pathogenic micro-organisms in the 19th century, microbiological safety of drinking water has been a major research issue for microbiologists in the drinking water industry. The main objective of this book is to develop a general strategy to assess elimination capacity of water treatment processes for pathogens. It investigates: The potential use of faecal indicators Coli44, (including E. coli) and SSRC, (including C. perfringens) as process indicators to assess pathogen elimination in full-scale water treatment plants. The value of comparative challenge tests with pre-cultured organisms for the assessment of elimination capacity of full-scale processes, to study the effect of process conditions and to validate the use of process indicators. The use of literature data to assess elimination capacity of water treatment processes for pathogens and the effect of process conditions on this. Visit the IWA WaterWiki to read and share material related to this title: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/WaterbornePathogens
Author : Thomas Oppenländer
Publisher : John Wiley & Sons
ISBN 13 : 3527610898
Total Pages : 383 pages
Book Rating : 4.5/5 (276 download)
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."
Author : Khoi Trung Nguyen
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (229 download)
Download or read book Analysis of Ultraviolet Energy Distribution in UV Disinfection Systems Using Monte Carlo Ray-trace Method written by Khoi Trung Nguyen and published by . This book was released on 2007 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society of Civil Engineers
Publisher :
ISBN 13 :
Total Pages : 1264 pages
Book Rating : 4.3/5 (91 download)
Download or read book Transactions of the American Society of Civil Engineers written by American Society of Civil Engineers and published by . This book was released on 2006 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 29-30 contain papers of the International Engineering Congress, Chicago, 1893; v. 54, pts. A-F, papers of the International Engineering Congress, St. Louis, 1904.
Author : Lawrence K. Wang
Publisher : Springer Science & Business Media
ISBN 13 : 1597450294
Total Pages : 697 pages
Book Rating : 4.5/5 (974 download)
Download or read book Advanced Physicochemical Treatment Processes written by Lawrence K. Wang and published by Springer Science & Business Media. This book was released on 2007-11-10 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past thirty years have witnessed a growing worldwide desire that po- tive actions be taken to restore and protect the environment from the degr- ing effects of all forms of pollution—air, water, soil, and noise. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for “zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been id- tified: (1) How serious is the pollution? (2) Is the technology to abate it ava- able? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers f- mulate answers to the last two questions above. The traditional approach of applying tried-and-true solutions to specific pollution problems has been a major contributing factor to the success of en- ronmental engineering, and has accounted in large measure for the establi- ment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.
Author : Ernest R. Blatchley, III
Publisher : John Wiley & Sons
ISBN 13 : 1119871352
Total Pages : 612 pages
Book Rating : 4.1/5 (198 download)
Download or read book Photochemical Reactors written by Ernest R. Blatchley, III and published by John Wiley & Sons. This book was released on 2022-11-03 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intuitively organized and incisive exploration of UV radiation and its modern applications In Photochemical Reactors: Theory, Methods, and Applications of Ultraviolet Radiation, distinguished civil engineer and researcher Dr. Ernest R. Blatchley III delivers a comprehensive exploration of the theory, methods, and contemporary and emerging applications of ultraviolet (UV) radiation. The author describes the fundamentals of the history of photochemistry and photochemical reactions before moving on to consider the dynamic behavior of UV-based reactor systems and the physical concepts that govern natural and man-made sources of UV radiation. The book also covers the numerical and empirical methods used to evaluate photochemical kinetics, photobiological kinetics, and the dynamics of UV photoreactors. Common and emerging applications of UV radiation—like the disinfection of water, wastewater, air, and surfaces—are discussed, and UV-induced transformation processes are also explored. Readers will also find: Thorough introductions to methods and principles that are universal to UV processes, as well as comparisons between those processes Critical explorations of the physics of natural and artificial sources of ultraviolet radiation Practical discussions of modern applications of UV radiation, including the disinfection of water, air, wastewater, and surfaces, as well as the use of UV photoreactors to promote photolysis and photo-initiated, radical-mediated reactions Perfect for UV professionals, academics, and scientists, Photochemical Reactors: Theory, Methods, and Applications of Ultraviolet Radiation will also earn a place in the libraries of professionals working in companies that manufacture UV reactors, as well as engineering consultants with a professional interest in ultraviolet radiation.
Author :
Publisher :
ISBN 13 :
Total Pages : 596 pages
Book Rating : 4.3/5 (555 download)
Download or read book Applied and Environmental Microbiology written by and published by . This book was released on 2007 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christine Jeyaseelan
Publisher : I K International Pvt Ltd
ISBN 13 : 9390620880
Total Pages : 455 pages
Book Rating : 4.3/5 (96 download)
Download or read book Instrumental Methods Of Analysis written by Christine Jeyaseelan and published by I K International Pvt Ltd. This book was released on 2022-11-21 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instrumentation Techniques refer to the development of methods and tools used in applied physics, materials science and nanotechnology for design, synthesis, manufacturing, imaging or analytics for analytical chemists in special and all the material scientists in general. They form a basis for qualitative description of as well as quantitative estimation of various types of materials, samples, reaction intermediates and final products. The fundamental principles underlying these techniques, instrumentation involved in it, applications for routine analysis and current status of these techniques in research field have been covered in each chapter. The authors have taken all the efforts to make the language and topics simple to understand for the UG as well as PG students.
Author :
Publisher : Elsevier
ISBN 13 : 0128157828
Total Pages : 2482 pages
Book Rating : 4.1/5 (281 download)
Download or read book Innovative Food Processing Technologies written by and published by Elsevier. This book was released on 2020-08-18 with total page 2482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food process engineering, a branch of both food science and chemical engineering, has evolved over the years since its inception and still is a rapidly changing discipline. While traditionally the main objective of food process engineering was preservation and stabilization, the focus today has shifted to enhance health aspects, flavour and taste, nutrition, sustainable production, food security and also to ensure more diversity for the increasing demand of consumers. The food industry is becoming increasingly competitive and dynamic, and strives to develop high quality, freshly prepared food products. To achieve this objective, food manufacturers are today presented with a growing array of new technologies that have the potential to improve, or replace, conventional processing technologies, to deliver higher quality and better consumer targeted food products, which meet many, if not all, of the demands of the modern consumer. These new, or innovative, technologies are in various stages of development, including some still at the R&D stage, and others that have been commercialised as alternatives to conventional processing technologies. Food process engineering comprises a series of unit operations traditionally applied in the food industry. One major component of these operations relates to the application of heat, directly or indirectly, to provide foods free from pathogenic microorganisms, but also to enhance or intensify other processes, such as extraction, separation or modification of components. The last three decades have also witnessed the advent and adaptation of several operations, processes, and techniques aimed at producing high quality foods, with minimum alteration of sensory and nutritive properties. Some of these innovative technologies have significantly reduced the thermal component in food processing, offering alternative nonthermal methods. Food Processing Technologies: A Comprehensive Review, Three Volume Set covers the latest advances in innovative and nonthermal processing, such as high pressure, pulsed electric fields, radiofrequency, high intensity pulsed light, ultrasound, irradiation and new hurdle technology. Each section will have an introductory article covering the basic principles and applications of each technology, and in-depth articles covering the currently available equipment (and/or the current state of development), food quality and safety, application to various sectors, food laws and regulations, consumer acceptance, advancements and future scope. It will also contain case studies and examples to illustrate state-of-the-art applications. Each section will serve as an excellent reference to food industry professionals involved in the processing of a wide range of food categories, e.g., meat, seafood, beverage, dairy, eggs, fruits and vegetable products, spices, herbs among others.
Author : Wladyslaw Kowalski
Publisher : Springer Science & Business Media
ISBN 13 : 3642019994
Total Pages : 504 pages
Book Rating : 4.6/5 (42 download)
Download or read book Ultraviolet Germicidal Irradiation Handbook written by Wladyslaw Kowalski and published by Springer Science & Business Media. This book was released on 2010-01-12 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference covers technical information on ultraviolet germicidal irradiation and its application to air and surface disinfection and the control of pathogens and allergens. Its main focus is airborne microbes and surface contamination applications.
Author : Tatiana Koutchma
Publisher : CRC Press
ISBN 13 : 1000649989
Total Pages : 360 pages
Book Rating : 4.0/5 (6 download)
Download or read book Ultraviolet Light in Food Technology written by Tatiana Koutchma and published by CRC Press. This book was released on 2019-05-20 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: UV light is one of a number of emerging non-thermal food processing technologies that can be used in a broad range of applications producing food products with longer shelf-life, more safe, and with higher nutritional quality. The new edition of Ultraviolet Light in Food Technology: Principles and Applications will present recent understanding of the fundamentals of UV light along with new applied knowledge that has accumulated during the 7 years since the first edition published in 2009. The new edition of the book will have 11 chapters including 2 new chapters--on chemical destruction with UV light and food plant safety—along with 6 chapters greatly expanded and updated.
Author : James R. Bolton
Publisher : American Water Works Association
ISBN 13 : 1613000774
Total Pages : 167 pages
Book Rating : 4.6/5 (13 download)
Download or read book The Ultraviolet Disinfection Handbook written by James R. Bolton and published by American Water Works Association. This book was released on 2011-01-12 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
