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Author: J.H. Williams Publisher: CRC Press ISBN: 0203210794 Category : Science Languages : en Pages : 217
Book Description
Anaerobic digestion has no effect on the quantity of the waste treated, but it affects its quality and its usefulness as fertilizer. This conference proceedings collection of twenty papers delves into the issue.
Author: J.H. Williams Publisher: CRC Press ISBN: 0203210794 Category : Science Languages : en Pages : 217
Book Description
Anaerobic digestion has no effect on the quantity of the waste treated, but it affects its quality and its usefulness as fertilizer. This conference proceedings collection of twenty papers delves into the issue.
Author: Marco de Bertoldi Publisher: Springer Science & Business Media ISBN: 9400915691 Category : Science Languages : en Pages : 1449
Book Description
The European Union initially demonstrated its interest in waste in the late 70s with the progamme on Waste Recycling Research and Development. At that time composting was only present as a coordination activity and it was only later that specific research programmes in the area were within Europe which was largely instrumental in setting up a series of European conferences, seminars and work shops. Some of these have resulted in publications which have made significant contributions to developments in the understanding of composting and the use of composts. In particular the outputs from meetings in Oxford ( 1984), Udine (1986), Neresheim ( 1988) and Angers ( 1991) are worthy of note. Composting has seen significant changes since the 70s when the major thrust in Europe was using mixed municipal solid waste as a feed material. Many com posting plants which were built to use this material were closed due to the poor quality of the compost which made it very difficult to market. As a result the main areas of interest, as far as the municipa1ities are concemed, are now with biowaste and source-separated organics. This interest is apparent from the many new plants which are being constructed across Europe, and the ready market which exists for the products. In parallel with the renewed interest of the municipalities other areas, such as agriculture and the wastewater treatment industries, are also developing their own schemes.
Author: O. van Cleemput Publisher: Springer Science & Business Media ISBN: 9401154503 Category : Nature Languages : en Pages : 666
Book Description
This book contains the proceedings of the `8th Nitrogen Workshop' which was held at the University of Ghent, Belgium, from 5 to 8 September 1994. Although nitrogen dynamics in different ecosystems have been studied for several decades, new orientations and other emphases have recently emerged. Previously, nitrogen was considered as an essential element mostly in terms of productivity, but now, more emphasis is attached to environmental consequences. More than 100 contributions in this book tackle recent developments within the fields of nitrogen advice systems, plant response to fertilization, immobilization and mobilization, nitrification, denitrification, leaching, ammonia volatilization and biological nitrogen fixation. A large number of papers is devoted to the formation of gaseous nitrogen compounds, while mineralization-immobilization is another topic of important interest. The book also contains the reports of discussion groups on different aspects of the nitrogen cycle.
Author: P. L'Hermite Publisher: Springer Science & Business Media ISBN: 9400947569 Category : Technology & Engineering Languages : en Pages : 585
Book Description
Disposal of organic sludge and liquid agricultural wastes is a universal problem. Their production cannot be halted and as steps are taken to maintain or improve the quality of rivers and lakes it grows in quanti ty. The Commission's early awareness of the need for action to prepare for substantial growth in the Community's' sludge disposal problem led to the setting up of the COST 68 project to coordinate and guide European research and development work with particular emphasis on recycling sludge to agricultural land. Two years ago the field of research activi ties was extended to liquid agricultural wastes. This Symposium is the latest opportunity to provide a comprehensive review of the results of the project, to define current trends in practice and to establish by discussion the priorities for research over the next few years. The development of instrumentation and of analytical techniques during the period has extended our knowledge of the organic and inorganic constituents of sewage sludge and agricultural wastes and enabled us more readily to identify and measure the risks to which our general environment may be exposed when disposing of it. This evolution of understanding is a continuing process and an essential guide to the modification of disposal practices to achieve safer and more efficient operations. However, it is important to take a broad view of the application of research findings in the light of the considerable contrast in conditions in different parts of the world.
Author: Jack E. Rechcigl Publisher: CRC Press ISBN: 9780873718592 Category : Technology & Engineering Languages : en Pages : 522
Book Description
This book presents a comprehensive and balanced overview of soil amendments and their effect on the environment. It encompasses both positive and negative aspects of chemical fertilizers that supply nitrogen, phosphorous, sulfur, lime, micronutrients, and trace metals. Pros and cons are discussed with respect to the optimal and the most environmentally sound use of soil amendments, and guidance is provided on how to minimize the environmental effects of amendments. Natural fertilizers, including manure, sludge, fly ash, phosphogypsum, and byproduct gypsum are also discussed. Alternative agronomic practices and biotechnology that ameliorate or minimize potential adverse effects of fertilizer use are examined in detail. This authoritative and up-to-date treatise is multidisciplinary in nature and international in scope, a powerful reference tool for researchers, a thorough guide for practitioners and policy makers, and an excellent text book for academic courses.
Author: Kenneth S. Sajwan Publisher: Springer Science & Business Media ISBN: 9780306477423 Category : Nature Languages : en Pages : 376
Book Description
A topical selection of papers from a July-August 2001 conference in Ontario on the biogeochemistry of trace elements in general, has been augmented with contributions invited from researchers well versed in coal and the byproducts of its combustion. In the resulting 22 articles, scientists in the earth and environmental sciences, engineering, mathematics, and other disciplines from a number of countries consider the environmental impact of coal combustion residues, trace elements in fly ash, the transport and leachability of metals from coal and ash piles, and using coal as an agricultural soil amendment. Some of the chapters are double spaced. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com).
Author: Publisher: Springer Science & Business Media ISBN: 1461231442 Category : Technology & Engineering Languages : en Pages : 249
Book Description
This well-reviewed and vigorous series presents research summaries on aspects of soil science which are as diverse as the subject itself, and range through physical, chemical and biological approaches to the study of soils. Volume 16 contains articles dealing with the role of phosphorus in soil, modeling of chemical absorption in soils, tests to determine nutrient availability and element toxicity in soils, the effects of sewage sludge on soil microbes, and methods to estimate soil water retention based on physical properties of soil.
Author: Domy C. Adriano Publisher: CRC Press ISBN: 1351368052 Category : Science Languages : en Pages : 494
Book Description
Biogeochemistry of Trace Metals is a compendium of the most recent information available on the effects of trace metals in soil quality and its potential threat on the transfer of these contaminants to consumers. Most of the chapters in the book were presented as papers during the First International Conference on the Biogeochemistry of Trace Elements (formerly Metals in Soils, Plants, Waters, and Animals) held in Orlando, Florida in May, 1990. Topics discussed include background levels of metals in soils and/or plants (covering western Europe; temperate, humid Europe; and the People's Republic of China); metal cycling and transfer in the food chain in agroecosystems; uptake and accumulation of metals by bacteria, fungi, and invertebrates; mechanistic aspects of metals; the microbial aspects of soil selenium losses; and manganese sorption on soil constituents.
Author: J.H. Williams
Author: J.H. Williams
Author: 
Author: Marco de Bertoldi
Author: O. van Cleemput
Author: P. L'Hermite
Author: Jack E. Rechcigl
Author: Kenneth S. Sajwan
Author: 
Author: 
Author: Domy C. Adriano