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Evaluation Of The Suitability Of Real Time Continuous Water Quality Monitoring In A Chloraminated Drinking Water Distribution System
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Book Synopsis Evaluation of the Suitability of Real-time Continuous Water Quality Monitoring in a Chloraminated Drinking Water Distribution System by : Jing Ling
Download or read book Evaluation of the Suitability of Real-time Continuous Water Quality Monitoring in a Chloraminated Drinking Water Distribution System written by Jing Ling and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant contamination events that have occurred in drinking water distribution systems over the last decade have raised public concern and the attention of regulators seeking to protect the safety of municipal drinking water systems. In response, municipalities are interested in using online, real-time continuous sensors to monitor water quality in locations throughout their distribution systems. Despite the significant effort being devoted to developing low-cost and energy-efficient water quality sensors, the reliability and utility of commercial water quality sensors for monitoring municipal drinking water systems have not been validated. In this study, the performance of a real-time, commercial sensor system was compared to conventional laboratory analysis of grab samples collected from fire hydrants in a chloraminated drinking water distribution system. Relationships between sensor output and direct/indirect laboratory analysis were established in both laboratory experiments and field applications. Finally, the stability of the water quality sensor was examined by analyzing the temporal and spatial changes in output over a three-week fire hydrant trial. The results of the study found that the ORP sensors are insensitive to changes in chloramine changes between 1.5 and 2.5 mg/L Cl2 in an oxic system. Overall, the optical sensors in the commercial systems performed poorly for monitoring water quality in the DWDS when the samples were drawn from fire hydrants. Transient pressure changes in the barrel of the fire hydrant released particles that fouled the optical sensor units. Recommendations for real-time water quality sensors installation, performance validation, and data interpretation for municipalities interested in using fire hydrants as DWDS sampling points are provided based on a case study conducted in a chloraminated drinking water distribution system
Book Synopsis Water Distribution System Monitoring by : Abigail F. Cantor
Download or read book Water Distribution System Monitoring written by Abigail F. Cantor and published by CRC Press. This book was released on 2018-01-08 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated throughout for this new edition, Water Distribution System Monitoring describes the latest water quality monitoring approaches, techniques, and equipment that will assist water utilities for compliance with the "Lead and Copper Rule" as well as address numerous other water quality issues. Water quality data are obtained using the appro
Book Synopsis Water Distribution System Monitoring by : Abigail F. Cantor
Download or read book Water Distribution System Monitoring written by Abigail F. Cantor and published by CRC Press. This book was released on 2018-01-08 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated throughout for this new edition, Water Distribution System Monitoring describes the latest water quality monitoring approaches, techniques, and equipment that will assist water utilities for compliance with the "Lead and Copper Rule" as well as address numerous other water quality issues. Water quality data are obtained using the appro
Author :Subhas C Mukhopadhyay Publisher :Springer Science & Business Media ISBN 13 :3642370063 Total Pages :292 pages Book Rating :4.6/5 (423 download)
Book Synopsis Smart Sensors for Real-Time Water Quality Monitoring by : Subhas C Mukhopadhyay
Download or read book Smart Sensors for Real-Time Water Quality Monitoring written by Subhas C Mukhopadhyay and published by Springer Science & Business Media. This book was released on 2013-03-17 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensors are being utilized to increasing degrees in all forms of industry. Researchers and industrial practitioners in all fields seek to obtain a better understanding of appropriate processes so as to improve quality of service and efficiency. The quality of water is no exception, and the water industry is faced with a wide array of water quality issues being present world-wide. Thus, the need for sensors to tackle this diverse subject is paramount. The aim of this book is to combine, for the first time, international expertise in the area of water quality monitoring using smart sensors and systems in order that a better understanding of the challenges faced and solutions posed may be available to all in a single text.
Author :Nilgun B. Harmancioglu Publisher :Springer Science & Business Media ISBN 13 :9780792355069 Total Pages :308 pages Book Rating :4.3/5 (55 download)
Book Synopsis Water Quality Monitoring Network Design by : Nilgun B. Harmancioglu
Download or read book Water Quality Monitoring Network Design written by Nilgun B. Harmancioglu and published by Springer Science & Business Media. This book was released on 1998-12-31 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the adequacy of collected water quality data and the performance of existing monitoring networks have been seriously evaluated for two basic reasons. First, an efficient information system is required to satisfy the needs of water quality management plans and to aid in the decision-making process. Second, this system has to be realized under the constraints of limited financial resources, sampling and analysis facilities, and manpower. Problems observed in available data and shortcomings of current networks have led researchers to focus more critically on the design procedures used. The book is intended to present an up-to-date overview of the current network design procedures and develop basic guidelines to be followed in both the design and the redesign of water quality monitoring networks. The book treats the network design problem in a comprehensive and systematic framework, starting with objectives of monitoring and elaborating on various technical design features, e.g. selection of sampling sites, sampling frequencies, variables to be monitored, and sampling duration. The design procedures presented are those that the authors have recently applied in a number of national and international projects on the design and redesign of water quality monitoring networks. Thus, the book covers real case studies where not only the methods described in the earlier titles are used but also new techniques are introduced. Where earlier methods are used, they are assessed with respect to their efficiency and applicability to real case problems. Audience: Essentially, the framework adopted in the book applies as well to other hydrometric data collection networks besides those of water quality. In this respect, it is expected that planners, designers, scientists, and engineers who are involved in hydrometric network design will benefit from the in-depth approach assumed in this book. It will also be of interest to research and data centers, international programs and organizations related to environmental monitoring. The book may also be used as a reference text in graduate courses of water resources and environmental engineering programs.
Book Synopsis A Residual Chlorine Removal Method to Allow Drinking Water Monitoring by Biological Early Warning Systems by :
Download or read book A Residual Chlorine Removal Method to Allow Drinking Water Monitoring by Biological Early Warning Systems written by and published by . This book was released on 2005 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic biomonitors can provide continuous, real-time monitoring for toxicity in source water supplies, but they cannot be used to directly monitor chlorinated drinking waters because of aquatic organism sensitivity to residual chlorine. The threshold for a toxicity alarm by a biomonitor using bluegills (Lepomis macrochirus) was between 0.015 and 0.066 mg/L total residual chlorine (TRC). A portable dechlorinator that injected 6 mg/L sodium bisulfite into water containing 1.5 to 2.0 mg/L TRC was effective in removing TRC-related toxicity during a nine month evaluation at a water treatment plant. Three biomonitor alarms that occurred were not caused by dechlorinator malfunctions. In one-hour laboratory exposures to sodium bisulfite alone, the biomonitor did not respond until concentrations exceeded 48 mg/L. This study demonstrated the feasibility of using a biomonitor in conjunction with a portable dechlorinator for continuous monitoring of chlorinated drinking waters. Future studies should evaluate dechlorinator suitability in waters with total organic carbon levels exceeding 2 mg/L or that have been disinfected with chloramines.
Book Synopsis A Systems Analysis of a Continuous Water Quality Monitoring Project by : Rae E. Cronmiller
Download or read book A Systems Analysis of a Continuous Water Quality Monitoring Project written by Rae E. Cronmiller and published by . This book was released on 1974 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Drinking Water Distribution Systems by : National Research Council
Download or read book Drinking Water Distribution Systems written by National Research Council and published by National Academies Press. This book was released on 2007-01-22 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protecting and maintaining water distributions systems is crucial to ensuring high quality drinking water. Distribution systems-consisting of pipes, pumps, valves, storage tanks, reservoirs, meters, fittings, and other hydraulic appurtenances-carry drinking water from a centralized treatment plant or well supplies to consumers' taps. Spanning almost 1 million miles in the United States, distribution systems represent the vast majority of physical infrastructure for water supplies, and thus constitute the primary management challenge from both an operational and public health standpoint. Recent data on waterborne disease outbreaks suggest that distribution systems remain a source of contamination that has yet to be fully addressed. This report evaluates approaches for risk characterization and recent data, and it identifies a variety of strategies that could be considered to reduce the risks posed by water-quality deteriorating events in distribution systems. Particular attention is given to backflow events via cross connections, the potential for contamination of the distribution system during construction and repair activities, maintenance of storage facilities, and the role of premise plumbing in public health risk. The report also identifies advances in detection, monitoring and modeling, analytical methods, and research and development opportunities that will enable the water supply industry to further reduce risks associated with drinking water distribution systems.
Book Synopsis The Strategy for Improving Water-quality Monitoring in the United States by : Intergovernmental Task Force on Monitoring Water Quality (U.S.)
Download or read book The Strategy for Improving Water-quality Monitoring in the United States written by Intergovernmental Task Force on Monitoring Water Quality (U.S.) and published by . This book was released on 1995 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to increased technological advances and burgeoning demands on available water supplies, the federal government and the private sector are joining efforts to reshape the network and broaden the focus of water quality monitoring efforts in the United States.
Book Synopsis Smart System for Water Quality Control by : Christine Saab
Download or read book Smart System for Water Quality Control written by Christine Saab and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This works presents the real-time control of drinking water quality using the smart technology. The deployment of water quality sensors in the distribution networks provides indication of contamination risks. However, the use of these innovative devices is recent and yet requires field experimentations. This thesis enhances the feedback in this domain. It presents a field study of online supervision of water quality, within SunRise project. This work is also a part of the European project “SmartWater4Europe”. The literature review highlights the impact of water contamination on human health as well as the drawbacks of conventional water supervision methods. A large-scale experimentation is conducted at the Scientific Campus of Lille University, where two types of sensors (S::CAN and EventLab) are implemented. The detailed analysis of recorded water quality signals showed the occurrence of some events, generally correlated with the variation of hydraulic parameters or the network interventions. Different methodologies for the detection of water anomaly are presented and applied to S::CAN data. Statistical and Artificial Intelligence (Support Vector Machine) methods discriminate between normal and unexpected measurements. An Event Detection System (EDS), developed within Canary software, showed a good performance in the identification of water abnormalities. The last part proposes a combination between the risk assessment approach and the smart monitoring. The improved risk assessment methodology allows a real-time detection and classification of water anomaly risk as well as an identification of the priority attention required.
Book Synopsis Online Monitoring for Drinking Water Utilities by : CRS PROAQUA.
Download or read book Online Monitoring for Drinking Water Utilities written by CRS PROAQUA. and published by American Water Works Association. This book was released on 2002 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussions in this book center on proper management for quantity and quality of drinking water based on sophisticated surveillance and communication systems that help water utilities manage, treat, and deliver drinking water to consumers.
Book Synopsis Monitoring Water Quality by : Dan Kroll
Download or read book Monitoring Water Quality written by Dan Kroll and published by Elsevier Inc. Chapters. This book was released on 2013-01-02 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Chloramine and Chlorine Residual Decay in the Distribution System by : Zaid K. Chowdhury
Download or read book Assessment of Chloramine and Chlorine Residual Decay in the Distribution System written by Zaid K. Chowdhury and published by IWA Publishing. This book was released on 2007-03-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintaining chlorine and chloramine residual is a key factor that determines potability of distributed water. Decay of these disinfectants is affected by various water quality and infrastructure related factors. Understanding the decay of residuals in the distribution system is critical with respect to safe delivery of drinking water and in developing water quality models that can be used by utilities for the operation of potable water delivery systems. In order to comply with microbial and disinfection byproduct (M/DBP) regulations, water suppliers are continually investing in treatment processes for achieving greater levels of inactivation and DBP precursor removal. As a result of these changes in water quality, maintaining a disinfectant residual in the distribution system can be challenging Bench-scale testing has been used to determine the effect of advanced treatment (enhanced coagulation, granular activated carbon adsorption, ozonation, biofiltration, and ultraviolet irradiation) on chlorine and chloramine decay. Additional studies examine the effects of disinfectant dose, temperature, pH, blending, and rechlorination. The effects of water quality on pipe-wall demand were evaluated using the distribution system simulator at the U.S. Environmental Protection Agency's Test and Evaluation Center. Several models are developed regarding disinfectant decay, making it easier to predict chlorine demand after changes in treatment. The multi-species water quality analysis and network path analysis extensions to EPANET will make the modeling package more robust and will allow utilities to predict chlorine residual at any point in their distribution system with greater confidence.
Book Synopsis Regulatory Water Quality Monitoring by : R. C. Ward
Download or read book Regulatory Water Quality Monitoring written by R. C. Ward and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continuous Multiparameter Water Quality Monitor by :
Download or read book Continuous Multiparameter Water Quality Monitor written by and published by DIANE Publishing. This book was released on with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Chlorination and Chloramination Practices and Principles, 2nd Ed. (M20) by : AWWA Staff
Download or read book Water Chlorination and Chloramination Practices and Principles, 2nd Ed. (M20) written by AWWA Staff and published by American Water Works Association. This book was released on 2011-01-12 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a New Calibration Method for the Continuous On-line Analysis and Monitoring of Drinking Water Quality Based on Neural Computing Techniques by : Shoshana Fogelman
Download or read book Development of a New Calibration Method for the Continuous On-line Analysis and Monitoring of Drinking Water Quality Based on Neural Computing Techniques written by Shoshana Fogelman and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Accurate, continuous, real-time water quality information is becoming of paramount importance to ensure safe supplies of potable water are available, as worldwide contamination of our freshwater resources increases and we diversify our reliance on alternative water resources. Nevertheless, the acquisition of continuous reliable data for aqueous environments has proven difficult to achieve, as the majority of on-line monitoring technologies currently employed are based on direct adaptations of traditional wet laboratory methods, which were not originally designed for field or continuous monitoring applications. Consequently, they have the inherent problem of requiring strictly controlled measurement conditions, which are rarely present in the natural environment and suffer from issues such as signal drift, reagent consumption, calibration and sample pre-treatment. Seeing that consistent measurement conditions are rarely present in real world environments, direct sensor deployment often means the sensor is unavoidably exposed to a wide range of measurement conditions leading to measurement errors and invalidating the operating conditions required for reliable performance.
