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Reduction of Pathogens, Indicator Bacteria, and Alternative Indicators by Wastewater Treatment and Reclamation Processes
ISBN: 9781843397304 / Angielski / Miękka / 90 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. In wastewater reclamation systems, microbiological monitoring is conducted to ensure that the users of reclaimed water are exposed to minimal risks from exposure to pathogens. Typically, utilities rely on the use of process controls to remove or inactivate pathogens. Routine monitoring of indicator organisms is conducted to evaluate overall process performance and for regulatory compliance. However, the effectiveness of individual treatment processes for removal of pathogens is dependent on process variables. This project was conducted to compare the effectiveness of biological treatment,...
In wastewater reclamation systems, microbiological monitoring is conducted to ensure that the users of reclaimed water are exposed to minimal risks fr...
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cena:
674,36 zł |
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Developing and Implementing a Performance Measurement System for a Water/Wastewater Utility
ISBN: 9781843397328 / Angielski / Miękka / 138 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The primary purpose of this research was to provide methods and tools that enable a water/ wastewater utility to develop and implement a performance measurement system based on a demonstrated proven approach. To achieve the purpose, the research was conducted in three phases: Core research on existing and applicable frameworks for performance measurement with experience from utilities and other government organizations, as well as outside business and industry, on leading practices in performance measurement. Steps to develop and implement performance measurement that uniquely fit...
The primary purpose of this research was to provide methods and tools that enable a water/ wastewater utility to develop and implement a performance m...
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cena:
674,36 zł |
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Nutrient Farming and Traditional Removal
ISBN: 9781843397335 / Angielski / Miękka / 58 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The purpose of this study was to assess the economic feasibility of using large-scale, restored wetlands to assist publicly owned treatment works (POTWs) in meeting the U.S. Environmental Protection Agency's (USEPA) recommended criteria for nutrients, specifically, total nitrogen (2.18 mg/l) and total phosphorous (0.076 mg/l). The assessment compares the cost of nutrient control by advanced wastewater treatment technology to that of wetland treatment technology. The comparison was based on several economic factors: annual operating costs, average costs, marginal costs, and present value. To...
The purpose of this study was to assess the economic feasibility of using large-scale, restored wetlands to assist publicly owned treatment works (POT...
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cena:
674,36 zł |
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Molecular Alternatives to Indicator and Pathogen Detection
ISBN: 9781843397359 / Angielski / Miękka / 116 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Microbial quality of water is a prime public health concern in today's world. To protect public health, the World Health Organization and the U.S. Environmental Protection Agency have established microbial pollution indicator standards and recommended routine monitoring of water for both total and fecal coliforms. However, the adequacy of current water quality standards to indicate the presence or absence of human pathogens is still questionable. For example, human viruses are more resistant to sewage treatment processes and environmental conditions than bacterial indicators and therefore may...
Microbial quality of water is a prime public health concern in today's world. To protect public health, the World Health Organization and the U.S. Env...
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cena:
674,36 zł |
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Innovative DNA Array Technology Detection of Pharmaceuticals Reclaimed Water
ISBN: 9781843397373 / Angielski / Miękka / 102 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Numerous pharmaceutical substances and their metabolites have been identified in the aquatic environment. Due to their unique environmental fate and lack of appropriate biomonitoring techniques, the potential risk of these compounds to public and environmental health has largely been undetermined. Recent interest in quantifying pharmaceuticals in waste effluents and aquatic environments has identified the need to develop bioanalytical assays that will accurately reflect presence of these compounds.
The goal of this research was to investigate the use of DNA microarrays as a bioanalytical... Numerous pharmaceutical substances and their metabolites have been identified in the aquatic environment. Due to their unique environmental fate and l...
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cena:
674,36 zł |
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Technical Brief: Endocrine Disrupting Chemicals and Implications for Wastewater Treatment
ISBN: 9781843397397 / Angielski / Miękka / 44 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This Technical Brief summarizes the information that is currently available from scientific research on Endocrine Disrupting Compounds (EDCs), sometimes known as hormonally active agents. It was prepared in response to concerns over the potential for EDCs to enter the environment in treated wastewater and reuse of biosolids. This document provides a primer on the endocrine system, the nature and sources of EDCs, and their potential effects on human health and the environment. The potential for man-made chemicals to cause endocrine disrupting effects came to light as early as the 1960s. The...
This Technical Brief summarizes the information that is currently available from scientific research on Endocrine Disrupting Compounds (EDCs), sometim...
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cena:
674,36 zł |
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Factors Influencing the Reliability of Enhanced Biological Phosphorus Removal
ISBN: 9781843397403 / Angielski / Miękka / 431 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Enhanced biological phosphorus removal (EBPR) has been used for decades to remove phosphorus from municipal wastewater because it allows facilities to meet water quality goals while minimizing chemical consumption and sludge production. However, there is still substantial variability in both the practices applied to achieve EBPR and the level of soluble phosphorus removal achieved. The objective of this research project was to develop information that can be used to help municipal wastewater treatment plants more efficiently and cost effectively remove phosphorus through EBPR processes. This...
Enhanced biological phosphorus removal (EBPR) has been used for decades to remove phosphorus from municipal wastewater because it allows facilities to...
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cena:
674,36 zł |
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Strategies for Sustainable Water Resource Management
ISBN: 9781843397564 / Angielski / Miękka / 294 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Integrated water resource management has been discussed since at least the Civil War; yet, there is still no integrated framework for sustainably managing water. Recognizing this need, the Water Environment Research Foundation (WERF) funded a research project to develop an integrated, conceptual framework for sustainable water resources management. Through WERF funding, this framework was developed over the past four years. Development of the framework was guided by the U.N. Agenda 21, Global Water Partnership, the Enlibra Principles, and Panarchy Theory. The conceptual framework for...
Integrated water resource management has been discussed since at least the Civil War; yet, there is still no integrated framework for sustainably mana...
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cena:
674,36 zł |
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Membrane Bioreactors for Anaerobic Treatment of Wastewaters (Phase II)
ISBN: 9781843397601 / Angielski / Miękka / 106 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Anaerobic biological treatment systems can offer a number of advantages over their aerobic counterparts. The operational costs associated with anaerobic systems are typically lower than with aerobic systems, and anaerobic systems also generate less waste sludge. In addition, the energy associated with the biogas produced during anaerobic biological treatment can potentially be recovered. However, to date, the use of conventional anaerobic biological systems for the treatment of dilute wastewaters has been relatively limited. The present study was designed to address this current knowledge...
Anaerobic biological treatment systems can offer a number of advantages over their aerobic counterparts. The operational costs associated with anaerob...
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cena:
674,36 zł |
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Case Studies of Modified Treatment Practices for Disinfection By-product Control
ISBN: 9781843398547 / Angielski / Miękka / 414 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Utilities must decide whether to modify their existing treatment practices to achieve compliance with the D/DBP regulations. A regulatory impact analysis predicted that up to 70% of large surface-water systems would need to make some treatment modifications. Meeting multiple water-quality objectives plays an important role in the decision-making process of water utilities. Utilities must meet other regulatory requirements and secondary drinking-water standards. In addition, there are operational, financial, and engineering issues that affect the selection of treatment technologies. Because of...
Utilities must decide whether to modify their existing treatment practices to achieve compliance with the D/DBP regulations. A regulatory impact analy...
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cena:
788,77 zł |
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Creating Effective Information Technology Solutions
ISBN: 9781843398776 / Angielski / Miękka / 188 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Technology offers one of the significant levers that utility managers have available to truly "do more with less." But it often is difficult for managers to know how much to spend on technology, where the expenditures should be, and what the expected return on that investment should be. The objective of this study was to determine successful approaches for implementing utility IT systems considering the range of factors influencing today's utility IT environment. The study cites leading practices that create effective IT solutions (not technology-specific solutions). While specific technology...
Technology offers one of the significant levers that utility managers have available to truly "do more with less." But it often is difficult for manag...
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cena:
788,77 zł |
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Cellular Responses to Arsenic: DNA Damage and Defense Mechanisms
ISBN: 9781843398806 / Angielski / Miękka / 166 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Although ingestion of high levels of arsenic is believed to cause certain cancers, estimates of cancer risk resulting from exposure to low levels of arsenic are the subject of considerable debate. An improved understanding of arsenic toxicity and the dose-response relationship for relatively low levels of arsenic could improve the risk assessment process. The overall objective of this study was to contribute to a better understanding of arsenic health effects. A specific aim was to investigate the cellular response of exposure to arsenic. This includes the analysis of cells treated with...
Although ingestion of high levels of arsenic is believed to cause certain cancers, estimates of cancer risk resulting from exposure to low levels of a...
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cena:
788,77 zł |
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Optimization of Ozone Disinfection Systems with Fluorescent-Dyed Microspheres
ISBN: 9781843398851 / Angielski / Miękka / 146 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The operation of ozone contactors needs to be optimized to provide adequate disinfection while minimizing the formation of disinfection by-products. However, measuring the actual disinfection efficiency is impractical in a full-scale system. The objective of this project was to demonstrate of the use of polystyrene microspheres to assess and optimize the performance of full-scale ozone disinfection systems. Specifically, the researchers developed and optimized microspheres with laboratory-scale experiments, demonstrated the use of microsphere method with a full-scale ozone contactor, and...
The operation of ozone contactors needs to be optimized to provide adequate disinfection while minimizing the formation of disinfection by-products. H...
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cena:
788,77 zł |
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Managing Distribution Retention Time to Improve Water Quality
ISBN: 9781843399018 / Angielski / Miękka / 188 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. When water leaves a treatment works and travels through a distribution system, its quality, with respect to many chemical and biological parameters, will degrade. The quality of the delivered water will be largely influenced by: The quality of treated water supplied into the network The condition of distribution assets within the network The retention time within the network. The water industry has focused predominantly on the quality of treated water and the physical condition of distribution assets when improving the quality of water at the customer's tap. However the quality of the water...
When water leaves a treatment works and travels through a distribution system, its quality, with respect to many chemical and biological parameters, w...
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cena:
788,77 zł |
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Light, Visible and Invisible, and Its Medical Applications
ISBN: 9781860941641 / Angielski / Twarda / 224 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Significant numbers of physicists began working in association with hospitals following the discovery of X-Rays and radioactivity in the late 1890s. This book introduces the reader to medical radiation physics using the developments from the early days as a means of explaining the underlying science. The first chapter provides basic information on x-rays and radioactivity. This is followed by their diagnostic and therapeutic applications. Recent developments involving non-ionising ultraviolet, visible and infrared radiations, and the use of lasers are covered in the following chapters. The...
Significant numbers of physicists began working in association with hospitals following the discovery of X-Rays and radioactivity in the late 1890s. T...
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cena:
209,39 zł |
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Secondary Settling Tanks
ISBN: 9781900222037 / Angielski / Miękka / 232 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Although developments in wastewater treatment over recent decades have focused on the biological reactor, the secondary settling tank (SST) also plays a major role in achieving increasingly stringent effluent quality standards. This report collates many of the significant developments that have taken place in SST theory, design, modelling and operation. Earlier SSTs were designed only by empirical hydraulic criteria such as overflow rate, which do not recognize sludge concentration and settleability. Today, there are available not only much improved design procedures but also hydrodynamic...
Although developments in wastewater treatment over recent decades have focused on the biological reactor, the secondary settling tank (SST) also plays...
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cena:
578,03 zł |
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Constructed Wetlands for Pollution Control
ISBN: 9781900222051 / Angielski / Miękka / 156 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Constructed Wetlands for Pollution Control presents a comprehensive up-to-date survey of wetland design techniques and operational experience from treatment wetlands. This book is the first and only global synthesis of information related to constructed treatment wetlands. Types of constructed wetlands, major design parameters, role of vegetation, hydraulic patterns, loadings, treatment efficiency, construction, operation and maintenance costs are discussed in depth. History of the use of constructed wetlands and case studies from various parts of the world are included as well. Constructed...
Constructed Wetlands for Pollution Control presents a comprehensive up-to-date survey of wetland design techniques and operational experience from tre...
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cena:
596,10 zł |
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Losses in Water Distribution Networks
ISBN: 9781900222112 / Angielski / Twarda / 298 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This is a best practice manual for addressing water losses in water distribution networks worldwide. Systems and methodologies are presented for improving water loss and leakage management in a range of networks, from systems with a well-developed infrastructure to those in developing countries where the network may need to be upgraded. The key feature of the manual is a diagnostic approach to develop a water loss strategy - using the appropriate tools to find the right solutions - which can be applied to any network. The methods of assessing the scale and volume of water loss are outlined,...
This is a best practice manual for addressing water losses in water distribution networks worldwide. Systems and methodologies are presented for impro...
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cena:
794,79 zł |
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Activated Sludge Models
ISBN: 9781900222242 / Angielski / Miękka / 129 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book has been produced to give a total overview of the Activated Sludge Model (ASM) family at the start of 2000 and to give the reader easy access to the different models in their original versions. It thus presents ASM1, ASM2, ASM2d and ASM3 together for the first time. Modelling of activated sludge processes has become a common part of the design and operation of wastewater treatment plants. Today models are being used in design, control, teaching and research. Contents ASM3: Introduction, Comparison of ASM1 and ASM3, ASM3: Definition of compounds in the model, ASM3: Definition of...
This book has been produced to give a total overview of the Activated Sludge Model (ASM) family at the start of 2000 and to give the reader easy acces...
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cena:
572,01 zł |
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Frontiers in Urban Water Management
ISBN: 9781900222761 / Angielski / Twarda / 424 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Frontiers in Urban Water Management presents the state-of-the art in urban water management at the beginning of the 21st century. The book marks the end of the fifth phase of UNESCO's International Hydrological Programme in this field by bringing together major scientific and professional players to address critical and topical issues in water management. This team of leading world experts investigate themes such as the challenges of urban water management, infrastructure integration issues, and emerging paradigms in water supply and sanitation. Key issues are investigated from the...
Frontiers in Urban Water Management presents the state-of-the art in urban water management at the beginning of the 21st century. The book marks the e...
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cena:
674,36 zł |
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