Download or read book Laboratory Investigations Into Processes Causing Discoloured Potable Water written by R. Sharpe and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although compliance rates are improving, discoloured water is the main area of water quality related customer complaints within the UK water industry. To enable a move from reactive to proactive management research is required to generate better understanding of discolouration. Previous investigations into factors influencing discolouration have been mainly based on bench scale tests or live networks, however these methods have limitations which restrict the progression of aspirations towards further knowledge. It has been observed that higher levels of discolouration complaints are received during warmer months. A link between increased coliforms and temperature has likewise been observed. From such work it is possible to hypothesise a connection between microbial ecology, particularly biofilms, and discolouration with temperature an important influencing variable, but to date such associations have not been proven. Likewise the impact of shear stress on discolouration potential is largely difficult to quantify. Questions remain over the influence of conditioning shear stress; whether it is the average or peak flow that influences discolouration and the pattern of mobilisation of particles. In order to investigate these hypotheses and address limitations of past studies a novel, full size temperature controlled pipe facility was developed offering a compromise between the dynamics of a live network and control of potentially influential factors. Coupons, designed to minimise distortion of boundary layer flow, were positioned along each loop allowing the analysis of material at the pipe surface. Results are reported from four experiments comprising of a 28 day accumulation phase, followed by sequential flushing to examine the impact of conditioning temperature and shear stress on discolouration risk as characterised by bulk water samples (turbidity, iron and manganese) and biofilm pipe wall measurements. Overall the big contribution of this thesis was to for the first time prove a link between discolouration and microbiology. As part of the implications of this relationship big advancements were made through the confirmation that higher temperatures increase discolouration risk. Discolouration was likewise seen to decrease with increased shear with the peak in flow being more influential than the average flow at reducing discolouration risk. Temperature was observed to be the controlling factor over shear stress in this relationship.

Download or read book Laboratory Investigations Into Processes Causing Discoloured Potable Water written by Rebecca Louise Sharpe and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Discolouration in Drinking Water Systems written by Jan Vreeburg and published by IWA Publishing. This book was released on 2010-08-14 with total page 169 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! Discolouration in Drinking Water Systems analyses the particle-related processes involved in the generation of discolouration problems in the network. To this end, new measuring methods have been developed such as continuous monitoring of turbidity and particle count, the Resuspension Potential Method (RPM), and the Time Integrated Large Volume Sampler (TILVS). With these new methods the discolouration problem can be seen as related to loose deposits in the network. The incidental re-suspension of accumulated loose particles is the main cause of discolouration events in the network. The origin of the particles is mainly the treated drinking water, followed by processes in the network like post-flocculation, corrosion and leaching and biological growth and re-growth. Irrespective of the cause of the particles the accumulation to layers of loose deposits can initiate water quality problems. This book looks at how managing the accumulation is possible through controlling the velocity in the pipes and through removing the loose deposits through effective cleaning.

Download or read book Metals and Related Substances in Drinking Water written by Prosun Bhattacharya and published by IWA Publishing. This book was released on 2011-11-25 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of Metals and Related Substances in Drinking Water Set - buy all five books together to save over 30%! Metals and Related Substances in Drinking Water comprises the proceedings of COST Action 637 - METEAU, held in Kristianstad, Sweden, October 13-15, 2010. This book collates the understanding of the various factors which control metals and related substances in drinking water with an aim to minimize environmental impacts. Metals and Related Substances in Drinking Water: Provides an overview of knowledge on metals and related substances in drinking water. Promotes good practice in controlling metals and related substances in drinking water. Helps to determining the environmental and socio-economic impacts of control measures through public participation Introduces the importance of mineral balance in drinking water especially when choosing treatment methods Shares practitioner experience. The proceedings of this international conference contain many state-of-the-art presentations by leading researchers from across the world. They are of interest to water sector practitioners, regulators, researchers and engineers.

Download or read book Detection Methods for Cynobacterial toxins written by G A Codd and published by Elsevier. This book was released on 1994-01-01 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacteria, or blue-green algae, commonly occur in a variety of water types throughout the world. A variable, but, high proportion of the cyanobacterial blooms and scums, which can develop annually in lakes, reservoirs, canals and slow-flowing rivers, contain potent toxins. Although animal poisonings and human health problems associated with the ingestion of, or contact with, cyanobacterial scums have long been recognized, a developing understanding of the health hazards posed by the toxins requires that reliable, sensitive, specific and convenient methods are available for their detection and quantification. Detection methods for cynobacterial toxins looks at the application of biological, toxicological, biochemical and physicochemical techniques in studies of cyanobacterial toxins and at experimental methods that have identified at least 50 cyanobacterial compounds toxic to vertebrates. Academics, public health bodies, environmental protection agencies and water companies are all involved in monitoring cyanobacterial levels and effects, and this book will help to ensure that their research is not duplicated, is standardized and comparable, and that optimal progress can be made in an important area that is still in its developing stages.

Download or read book Integrating Water Systems written by Joby Boxall and published by CRC Press. This book was released on 2009-07-24 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of articles by leading international experts on modeling and control of potable water distribution and sewerage collection systems, focusing on advances in sensors, instrumentation and communications technologies; assessment of sensor reliability, accuracy and fitness; data management including SCADA and GIS; system

Download or read book Compilation of EPA s Sampling and Analysis Methods Second Edition written by Lawrence H. Keith and published by CRC Press. This book was released on 1996-09-26 with total page 1740 pages. Available in PDF, EPUB and Kindle. Book excerpt: The popular first edition of this book contained approximately 600 analyte/method summaries. This new edition contains twice as many new EPA-approved methods for testing and analyzing industrial chemicals, pesticides, herbicides, dioxins, and PCBs and is a printed version of the EPA's Sampling and Analysis Methods Database. Each analyte/method summary contains all of the information required to stand alone as a reference. Thus, in addition to a brief summary of each method, descriptions include required instrumentation, interferences, sampling containers, preservation techniques, maximum holding times, detection levels, accuracy, precision, quality control requirements, EPA reference, and, when available, EPA contacts with phone numbers. Each summarized report is a "stand-alone" document.

Download or read book Manual for the Certification of Laboratories Analyzing Drinking Water written by and published by . This book was released on 1982 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laboratory Tests and Diagnostic Procedures written by Cynthia C. Chernecky and published by Elsevier Health Sciences. This book was released on 2007-06-14 with total page 1233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Look no further for quick, complete answers to questions such as which laboratory tests to order or what the results might mean. Laboratory Tests And Diagnostic Procedures, 5th Edition covers more tests than any other reference of its kind, with over 900 lab tests and diagnostic procedures in all. In Part I, you'll find a unique, alphabetical list of hundreds of diseases, conditions, and symptoms, including the tests and procedures most commonly used to confirm or rule out a suspected diagnosis. Part II presents key information on virtually every laboratory and diagnostic test available. All test entries are up-to-date, concise, complete, and consistently presented, making this resource the perfect choice for students or practitioners who need fast, accurate information on diagnostic tests. Over 600 diseases and symptoms are listed in Part I, with the most relevant tests identified for each. More than 900 laboratory tests and diagnostic procedures are included in Part II, more than any other reference! Organized alphabetically, with printed A-to-Z thumb tabs that make it easy to turn to appropriate sections in the book. Alternative test names and acronyms are cross-referenced to help you quickly find what you're looking for. Tests for toxic substances are included, along with Panic Level Symptoms and Treatment for dangerously elevated levels. Age and gender-specific norms are provided, giving you complete lifespan coverage. Risks and Contraindications are highlighted to help you safeguard your patients and provide effective care. Minimum volumes for blood samples are included, helping you diagnose patients for whom blood preservation is essential. You'll also see whether blood specimens can be drawn during hemodialysis. Special consent form requirements are indicated for appropriate tests. Guidance for client and family teaching helps you offer useful instruction concerning test preparation and follow-up care. 12 new test entries present the latest tests and procedures available, including: Procalcitonin; Calcium scoring; Vascular endothelial growth factor; Cerebral near-infrared spectroscopy; RD1 interferon assays for tuberculosis; and OraQuick rapid HIV test. Larger trim size and improved design make vital information easier to locate.

Download or read book Water resources Investigations Report written by and published by . This book was released on 2000 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Textile World written by and published by . This book was released on 1920 with total page 1516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Procedures to Investigate Waterborne Illness written by International Association for Food Protection and published by Springer. This book was released on 2016-07-12 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a team of international experts, this third edition designed to guide public health personnel or teams in any country that investigates reports of alleged waterborne illnesses. The manual is based on epidemiologic principles and investigative techniques that have been found effective in determining causal factors of disease incidence. The guidelines are presented in the sequence usually followed during investigations and are organized so that an investigator can easily find the information needed in any phase of an investigation. The book services as a guide to: • Develop a waterborne disease surveillance and emergency operations program • Handle illness alerts and water-related complaints that may be related to illness • Interview ill persons, those at risk, and controls • Develop a case definition • Transport water specimens and clinical specimens • Trace sources of contamination • Identify factors responsible for contamination, survival of pathogenic microorganisms or toxic substances, and/or propagation of pathogens • Collate and interpret collected data • Report information about the outbreak This edition has been extensively updated. A section has been added on water not intended for drinking as a source of illness. The chapter on “collection and analysis of data” has been significantly expanded to explain how data is collected and used to suggest possible vehicles, routes, and agents. The book is designed to improve the quality of investigation of outbreaks and disease surveillance. The International Association for Food Protection is a non-profit association of food safety professionals. Dedicated to the life-long educational needs of its Members, IAFP provides Members with an information network through its two scientific journals (Food Protection Trends and Journal of Food Protection), its educational Annual Meeting, international meetings and symposia along with international interaction between food safety professionals.

Download or read book Water Management Challenges in Global Change written by B. Ulanicki and published by CRC Press. This book was released on 2020-11-26 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Management Challenges in Global Change contains the proceedings of the 9th Computing and Control for the Water Industry (CCWI2007) and the Sustainable Urban Water Management (SUWM2007) conferences. The rationale behind these conferences is to improve the management of urban water systems through the development of computerbased methods. Issues such as economic globalisation, climate changes and water shortages call for a new approach to water systems management, which addresses the relevant technical, social and economic aspects. This collection represents the views of academic and industrial experts from a number of countries, who provide technical solutions to current water management problems and present a vision for addressing the global questions. The themes underlying many of the contributions include energy and material savings, water savings and the integration of different aspects of water management. The papers are grouped into three themes covering water distribution systems, sustainable urban water management and modelling of wastewater treatment plants. The water distribution topics cover asset and information management, planning, monitoring and control, hydraulic modelling of steady state and transients, water quality and treatment, demand and leakage management, optimisation, design and decision support systems, as well as reliability and security of water distribution systems. The sustainable urban water management topics include urban drainage systems, water reuse, social aspects of water management and also selected facets of water resources and irrigation. Computer control of wastewater treatment plants has been seen as less advanced than that of clean water systems. To address this imbalance, this book presents a number of modelling techniques developed specifically for these plants. Water Management Challenges in Global Change will prove to be invaluable to water and environmental engineering researchers and academics; managers, engineers and planners; and postgraduate students.

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Methods of Chemical Analysis Special subjects written by Wilfred Welday Scott and published by . This book was released on 1925 with total page 1448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal and Proceedings of the Institute of Sewage Purification written by and published by . This book was released on 1959 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ICE Manual of Geotechnical Engineering Volume 1 written by Tim Chapman and published by Emerald Group Publishing. This book was released on 2023-11-17 with total page 809 pages. Available in PDF, EPUB and Kindle. Book excerpt: ICE Manual of Geotechnical Engineering, Second edition brings together an exceptional breadth of material to provide a definitive reference on geotechnical engineering solutions. Written and edited by leading specialists, each chapter provides contemporary guidance and best practice knowledge for civil and structural engineers in the field.