Nanoscale Materials in Water Purification, Thomas, Sabu

Автор: Kathryn Furlong
Название: Leaky Governance: Alternative Service Delivery and the Myth of Water Utility Independence
ISBN: 0774831499 ISBN-13(EAN): 9780774831499
Издательство: Mare Nostrum (Eurospan)
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Цена: 30050.00 T
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Описание: Municipalities face important water supply challenges. One response has been to render utilities independent from municipal government through alternative service delivery (ASD). For its proponents, ASD provides needed autonomy from municipal government; for its detractors, it is privatization under another name. Using Ontario as a case study, Kathryn Furlong paints a complex picture of both ASD and municipal government. Examining organizational models for water supply and how they are affected by shifting governance and institutional environments, she reveals water management and municipal governance to be deeply interdependent and contends that both must be strengthened to meet contemporary water supply needs.

Автор: Grumezescu, Alexandru Mih
Название: Water Purification
ISBN: 0128043008 ISBN-13(EAN): 9780128043004
Издательство: Elsevier Science
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Цена: 156080.00 T
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Water Purification, a volume in the Nanotechnology in the Food Industry series, provides an in-depth review of the current technologies and emerging application of nanotechnology in drinking water purification, also presenting an overview of the common drinking water contaminants, such as heavy metals, organics, microorganisms, pharmaceuticals, and their occurrences in drinking water sources.

Автор: Ahuja, Satinder
Название: Advances in Water Purification Techniques
ISBN: 0128147903 ISBN-13(EAN): 9780128147900
Издательство: Elsevier Science
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Цена: 185270.00 T
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Описание: Advances in Water Purification Techniques: Meeting the Needs of Developed and Developing Countries provides a variety of approaches to water purification that can help assist readers with their research and applications. Water contamination problems occur frequently worldwide, hence the most updated knowledge on water purification systems can be helpful in employing the right type of filter or other mechanism of decontamination. The problems with arsenic contamination of water in Bangladesh and the lead problem in Flint, Michigan remind us of the need to monitor water pollution rigorously, from both point and non-point sources.

Автор: Vince O Bryant, Lane M Alexander
Название: Water Quality: Issues & Options for Congress & the EPA
ISBN: 1619429225 ISBN-13(EAN): 9781619429222
Издательство: Nova Science
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Цена: 149940.00 T
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Описание: Much progress has been made in achieving the ambitious goals that Congress established more than 35 years ago in the Clean Water Act (CWA) to restore and maintain the chemical, physical, and biological integrity of the nations waters. However, long-standing problems persist, and new problems have emerged. Water quality problems are diverse, ranging from pollution runoff from farms and ranches, city streets, and other diffuse or "non-point" sources, to toxic substances discharged from factories and sewage treatment plants. This book provides an overview of water quality issues in the 112th Congress with a focus on pesticide use and water quality; animal waste and water quality; and a summary of the Clean Water Act.

Автор: Shlomo Nir, Uri Shuali
Название: Water Purification by Micelle-Clay Nano-Particles
ISBN: 1536149586 ISBN-13(EAN): 9781536149586
Издательство: Nova Science
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Цена: 182680.00 T
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Описание: This book focuses on water purification by micelle-clay nano-particles. The micelle-clay complex is composed of an organic cation (surfactant) with a long alkyl chain, e.g., ODTMA (octadecyltrimethylammonium) that spontaneously forms micelles of several nm in diameters at small concentrations. The positively charged micelles interact with a negatively charged clay (bentonite) at optimal ratios. The resulting complex has a large surface area per weight; it includes large hydrophobic parts and has an excess of a positive charge. The complex is insensitive to higher temperatures (50 0C), to pH values in the range of 2-11, or ionic strengths. Production of powdered and granulated complexes is described. The material characteristics of the micelle-clay complex differ from those of organo-clay of the same composition, which is formed by the interaction of monomers of the surfactant with the clay (Chapters One and Two). Model calculations enable simulations and predictions of removal of pollutants from water in batch or filtration experiments, and can yield cost estimates (Chapter Three). Laboratory and pilot experiments (Chapter Four) yield efficient removal from the water of (i) hydrophobic and anionic organic molecules: herbicides, humic acid, dissolved organic matter, and pharmaceuticals; (ii) inorganic anions, e.g., perchlorate; and (iii) microorganisms: bacteria, viruses, and parasites, e.g., cryptosporidium, which is resistant to chlorination. The (above) use of a micelle-clay complex indicated a big advantage in comparison with activated carbon. Low cost regeneration of used filters after bacteria adsorption is described. Biocidal effects of cations, e.g., ODTMA are demonstrated; released cations during filtration enhanced the filter efficiency. The released cations are removed from water before consumer use by another filter containing activated carbon. Drinking water from lakes is forbidden during cyanobacteria bloom due to harmful toxins. Filtration by the granulated micelle-clay complex and killing of cyanobacteria by ODTMA cations are described. Water purification by other clay-composites such as liposome- and polymer-clay is described in Chapter Five. Collaboration between technologies of water purification are found in Chapter Six: (i) Incubation of grey water in a moving bed biological reactor followed by filtration by the micelle-clay granulated complex enables water reuse at low cost. (ii) Filtration combined with degradation by solar photo-Fenton processes is a promising tertiary treatment of wastewater, including efficient removal of problematic pharmaceuticals. (iii) A new design of the micelle-clay complex may yield enhanced capacity for removal of microorganisms from water by combining filtration with biocidal action of free cations. This book describes inventions in material science and developments of computational procedures for simulations and predictions, and is an authoritative and stimulating reference for researchers, engineers and students involved in water treatment and adsorption processes.

Автор: Richard P. Beverly
Название: Filter Troubleshooting & Design Handbook
ISBN: 1583219234 ISBN-13(EAN): 9781583219232
Издательство: Mare Nostrum (Eurospan)
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Цена: 123810.00 T
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Описание: Troubleshooting granular filters can take hours and frustrate even the most experienced water operators. Find and solve filter problems fast with this handbook.

Автор: Adri?n Bonilla-Petriciolet; Didilia Ileana Mendoza
Название: Adsorption Processes for Water Treatment and Purification
ISBN: 331958135X ISBN-13(EAN): 9783319581354
Издательство: Springer
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Цена: 130430.00 T
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Описание: This book provides researchers and graduate students with an overview of the latest developments in and applications of adsorption processes for water treatment and purification.

Автор: Quan Cui
Название: New Approaches in Water Purification
ISBN: 1680958356 ISBN-13(EAN): 9781680958355
Издательство: Mare Nostrum (Eurospan)
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Цена: 170010.00 T
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Описание: In the past decade, practical applications of a variety of new wastewater-treatment technologies, such as membrane filtration systems and advanced oxidation, have led to new ways of managing urban water systems and water resources. This book describes these new approaches in water purification, and describes technological advances that are in development.

Название: Nanotechnology for Water Treatment and Purification
ISBN: 3319065777 ISBN-13(EAN): 9783319065779
Издательство: Springer
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Цена: 158380.00 T
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Описание: This book describes the latest progress in the application of nanotechnology for water treatment and purification. Leaders in the field present both the fundamental science and a comprehensive overview of the diverse range of tools and technologies that have been developed in this critical area. Expert chapters present the unique physicochemical and surface properties of nanoparticles and the advantages that these provide for engineering applications that ensure a supply of safe drinking water for our growing population. Application areas include generating fresh water from seawater, preventing contamination of the environment and creating effective and efficient methods for remediation of polluted waters. The chapter authors are leading world-wide experts in the field with either academic or industrial experience, ensuring that this comprehensive volume presents the state-of-the-art in the integration of nanotechnology with water treatment and purification.