Treatment technologies

The generation of wastes as a result of human activities has been continuously speeding up since the beginning of the industrial revolution. Hence, both optimized waste water treatment technologies and modern tools to assess the effects of pollution sources are necessary to prevent the contamination of aquatic ecosystems The book offers an interdisciplinary collection of topics concerning waste water treatment technologies, water quality monitoring and evaluation of waste water impact on natural environments.

204p phoebe75 19-02-2013 46 26   Download

Hazardous and Radioactive Waste Treatment Technologies Handbook .Hazardous and Radioactive Waste Treatment Technologies Handbook Editor-in-Chief Chang Ho Oh, Ph.D. CRC Press Boca Raton London New York Washington, D.C. .Library of Congress Cataloging-in-Publication Data Hazardous and radioactive waste treatment technologies handbook / Chang H. Oh [editor] p. cm. (The mechanical engineering handbook series) Includes bibliographical references and index. ISBN 0-8493-9586-0 (alk. paper) 1. Hazardous wastes--Purification--Handbooks, manuals, etc. 2.

731p 951864273 11-05-2012 116 53   Download

Many things have changed, but many things have stayed the same since the first edition of In Situ Treatment Technology was published. One thing that has stayed the same is that this is still the most exciting technical area in the remediation field today. Also, many new important technologies have emerged over the past 5 years, and full-scale installations of existing technologies have broadened our knowledge base. The purpose of this book is to provide the reader with a single source that consolidates all of this information on the various in situ technologies....

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This volume covers the technologies that are applied to the treatment and purification of water. Those who are generally familiar with this field will immediately embrace the subject as a treatise on solid-liquid separations. However, the subject is much broader, in that the technologies discussed are not just restricted to pollution control hardware that rely only upon physical methods of treating and purifymg wastewaters.

654p p_ngoc_cs 17-05-2011 289 131   Download

On average, one ton of hazardous waste per person is generated annually by industries in the United States. Before the Resource Conservation and Recovery Act of 1984, hazardous wastes were improperly disposed of into the environment without any regulation. As a result, remediation of these contaminated sites and management of the ongoing hazardous waste sources are two major tasks to be achieved by treatment technologies.

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In order to maintain economic development and minimize future regional and international conflicts, the United States will need sustainable supplies of high-quality fresh water. Solutions to local water scarcity issues will likely require a combination of approaches, including demand management, improved water storage capacity, water quality protection, and advancements in supply-enhancing water treatment technologies. Desalination technologies can create new sources of freshwater from otherwise impaired waters such as seawater or brackish water.

85p camnhung_1 14-12-2012 25 4   Download

In Handbook of Water and Wastewater Treatment Plant Operations , the intent of the author is twofold. The Þrst intent is to consolidate the information and experience in waterworks and wastewater treatment plant operations that have evolved as a result of technological advances in the Þeld, and as a result of the concepts and policies promulgated by the environmental laws and the subsequent guidelines.

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The steady increase in industrialization, urbanization and enormous population growth are leading to production of huge quantities of wastewaters that may frequently cause environmental hazards. Raw or treated waste water is very oft en discharged to freshwaters and results in changing ecological performance and biological diversity of these systems. About 70% of water supplied ends up as wastewater and several natural water reservoirs are being contaminated by untreated sewage/industrial effl uents. This makes waste water treatment and waste water reduction very important issues....

446p ktcn_1 10-07-2012 102 51   Download

The detection of pharmaceutical residues remained elusive until instruments such as liquid chromatography and mass spectrometry became commonplace in environmental laboratories. The documentation of the occurrence of pharmaceutical residues and endocrine disrupting chemicals in water resources has raused questions about their long-term effects in the ecosystem and their potential effects on human health.

382p 951628473 04-05-2012 80 36   Download

AD HOC NETWORKS: Technologies and Protocols is a concise in-depth treatment of various constituent components of ad hoc network protocols. It reviews issues related to medium access control, scalable routing, group communications, use of directional/smart antennas, network security, and power management among other topics. The authors examine various technologies that may aid ad hoc networking including the presence of an ability to tune transmission power levels or the deployment of sophisticated smart antennae. ...

295p ken333 06-07-2012 93 31   Download

The first edition of the Steel Heat Treatment Handbook was initially released in 1997. The objective of that book was to provide the reader with well-referenced information on the subjects covered with sufficient depth and breadth to serve as either an advanced undergraduate or graduate level text on heat treatment or as a continuing handbook reference for the designer or practicing engineer.

832p khangoc2394 25-08-2012 75 24   Download

Environmental considerations: treatment of exhaust gases from film-coating processes Graham C.Cole SUMMARY Solvents such as acetone, methylene chloride, chloroform, ethanol and methanol must be prevented from entering the environment. Two options are available: convert all the processes to aqueous-based formulations or recover all the solvent by the use of an appropriate system. Recovery is expensive and is generally the reason for pharmaceutical companies to convert coating formulations to aqueous systems or formulate aqueous coating for all new products.

9p bigbaby87 01-09-2010 57 12   Download

This book is targeted to graduate students and researchers at the cutting edge of investigations into the fundamental nature of multiphase flows. It is intended as a reference book for the basic methods used in the treatment of multiphase flows. The subject of multiphase flows encompasses a vast field whose broad spectrum presents a problem for the experimental and analytical methodologies that might be appropriate for the reader's interests.

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This book examines the practices used or considered for biological treatment of waterlwastewater and hazardous wastes. The technologies described involve conventional treatment processes, their variations, as well as recent research. The book is intended for those seeking an overview of the field, and covers the major topics. The book is divided into five principal sections, and references are provided for those who wish to dig deeper.

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Modified release coatings John E.Hogan SUMMARY Relevant aspects of the composition and performance of modified release coatings are considered in this chapter. Initially, the basic characteristics of multiparticulate systems are described and comparisons are made with the performance of whole tablets intended for modified release. The properties and effects of the polymers and plasticizers which are used in modified release coatings are illustrated with examples from the literature. This further develops the basic treatment of these materials provided in Chapter 2.

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A new technology for production of 4BS pastes for the positive (lead dioxide) plates of lead-acid batteries has been developed based on an Eirich Evactherm1 mixer. The basic principle of this new technology is that 4BS crystals with dimensions between 20 and 25 mm are formed ®rst from a semi-suspension at a temperature higher than 908C and then the excess water is removed from the semi-suspension under vacuum until the desired paste density is obtained. During the vacuum treatment the temperature of the paste decreases and small 4BS and PbO crystals are formed. ...

12p congdat261 19-11-2010 59 9   Download

This recent technology separates the corn kernel into its components without the soaking step. Depending on the process—several companies currently offer similar technologies—the feedstock may be misted with water before being separated into bran, germ, and the high-starch endosperm portion of the kernel (BioFuels Journal, 2005d,e). The advantages of dry fractionation over processes that require a soak step are threefold: lower costs because less energy is required for drying the feed coproduct, lower emissions, and greater coproduct output because the mash is more highly concentrated.

33p loixinloi 08-05-2013 29 8   Download

Aircraft Gas Turbine Engine Technology provides a comprehensive, easy-to-understand treatment of the background, development, and applications of the gas turbine engine it its various forms, such as turobjet, turbofan, turboprop, and turboshaft powerplants. Designed primarily as a resource for technicians preparing for the FAA aircraft powerplant mechanic certification, Aircraft Gas Turbine Engine Technology also may be used a reference. The text also discusses the changing maintenance and overhaul procedures and philosophies and the role of fuel metering in engine operation....

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Breast cancer remains a leading cause of cancer death among women in the United States. More than 180,000 new cases of invasive breast cancer are diagnosed each year, and more than 40,000 women die of the disease. Recent years, however, have seen improvements in survival attributed to better treatment and earlier diagnosis. Research efforts have been directed toward better treatment, preventive strategies, and early detection.

311p camnhung_1 14-12-2012 37 7   Download

Nối tiếp nội dung phần 1, phần 2 cuốn sách trình bày các bài học từ bài 6 bao gồm: Water pollution, wastewater treatment, solid wastes, solid waste management, sustainable development. Mời các bạn cùng tham khảo nội dung chi tiết.

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