Автор: K. Spiegler Название: Salt-Water Purification ISBN: 1468423630 ISBN-13(EAN): 9781468423631 Издательство: Springer Рейтинг: Цена: 87070.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This introductory book is for newcomers to the field of desalting. As a result of the development of arid regions, and also in the wake of intensive use of water in urban areas all over the world, fresh water is frequently not available in the quantities desired. Conversion of salt water into fresh water requires useful energy, i.
Автор: Shlomo Nir, Uri Shuali Название: Water Purification by Micelle-Clay Nano-Particles ISBN: 1536149586 ISBN-13(EAN): 9781536149586 Издательство: Nova Science Рейтинг: Цена: 182680.00 T Наличие на складе: Невозможна поставка. 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: Ray, Suprakas Sinha Название: Carbon Nanomaterial-Based Adsorbents For Water Purification ISBN: 0128219599 ISBN-13(EAN): 9780128219591 Издательство: Elsevier Science Рейтинг: Цена: 193130.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
The deterioration of water quality and unavailability of drinkable water are pressing challenges worldwide. The removal of toxic organic and inorganic pollutants from water is vital for a clean environment, as a response to water scarcity. Adsorption-based water technologies are among the most widely used because of their high efficiency and low cost, without relying on a complex infrastructure. In recent years, carbon nanomaterials (CNMs), such as graphene and derivatives, carbon nanotubes, carbon nanofibers, nanoporous carbon, fullerenes, graphitic carbon nitride, and nanodiamonds have been extensively exploited as adsorbents due to their extraordinary surface properties, ease of modification, large surface area, controlled structural varieties, high chemical stability, porosity, low density, ease of regeneration, and reusability.
This book provides a thorough overview of the state of the art in carbon nanomaterials as they are used for adsorption applications in water purifications, as well as addressing their toxicological challenges. This volume primarily explores the fundamentals of adsorption, its mechanical aspects, synthesis and properties of CNMs, and adsorption performances of CNMs and their nanocomposites with organic and inorganic materials. Structural engineering and activation processes produce materials with enhanced adsorptive properties and separation efficiencies. Furthermore, the formation of CNMs with 2D and 3D macro-and microstructures and high porosities is a potential approach to improve adsorption performances and extend CNM use at the industrial level. The book also addresses important issues regarding these adsorbents that potentially affect future research and industrial applications of carbon-based nanoadsorbents in water security.
Название: Nanotechnology for Water Treatment and Purification ISBN: 3319065777 ISBN-13(EAN): 9783319065779 Издательство: Springer Рейтинг: Цена: 158380.00 T Наличие на складе: Есть у поставщика Поставка под заказ. 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.
Автор: Shahid Ul–Islam Название: Environmental Nanotechnology for Water Purification ISBN: 1119640458 ISBN-13(EAN): 9781119640455 Издательство: Wiley Рейтинг: Цена: 193190.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
Dyes, pigments and metals are extensively used in food, paper, carpet, rubber, plastics, cosmetics, and textile industries, in order to color and finish products. As a result, they generate a considerable amount of coloured wastewater rich in organic, inorganic, and mineral substances which are continuously polluting the water bodies and affecting human and aquatic life. Besides these industries, urban and agricultural activities also generate effluents high in biochemical oxygen demand (BOD) and chemical oxygen demand (COD). In recent years, considerable research work has been done in this area and is underway to eliminate heavy metals particularly mercury (Hg), chromium (Cr), lead (Pb), selenium and cadmium (Cd) and synthetic dyes from polluted waters which have high toxicity and carcinogenicity.
Currently a number of methods are in operation to decontaminate the polluted waters. Among several purification technologies, use of nanoparticles/composites have gained much attention as efficient purification technology due to its many advantages such as simple synthesis, special chemical and physical properties, unique photocatalytic activity and beneficial antimicrobial properties and high efficiency. The book Environmental Nanotechnology for Water Purification comprehensively covers and provides new insights on all nanoparticles, composites and advanced methods employed in water purification.
Автор: Adri?n Bonilla-Petriciolet; Didilia Ileana Mendoza Название: Adsorption Processes for Water Treatment and Purification ISBN: 331958135X ISBN-13(EAN): 9783319581354 Издательство: Springer Рейтинг: Цена: 130430.00 T Наличие на складе: Есть у поставщика Поставка под заказ. 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: Dennis R. Hill Название: Basic Microbiology for Drinking Water ISBN: 1583219811 ISBN-13(EAN): 9781583219812 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 101640.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Lavishly illustrated with 98 full-color figures, this book describes waterborne microorganisms-bacteria, viruses, protists, and others-of concern to water operators, as well as techniques for isolation and detection, chemistry, and disinfection.
Автор: Richard P. Beverly Название: Filter Troubleshooting & Design Handbook ISBN: 1583219234 ISBN-13(EAN): 9781583219232 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 123810.00 T Наличие на складе: Есть у поставщика Поставка под заказ. 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: Firth Frank J., Filter Company O. H. Jewell Название: Purification of City Water Supplies by Sand Filtration ISBN: 3743423553 ISBN-13(EAN): 9783743423558 Издательство: Неизвестно Рейтинг: Цена: 26330.00 T Наличие на складе: Есть у поставщика Поставка под заказ.
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