Download or read book Humic Substances in Natural Waters and Their Complexation with Trace Metals and Radionuclides written by Sam Boggs and published by . This book was released on 1985 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Humic Substances written by Abdelhadi Makan and published by BoD – Books on Demand. This book was released on 2021-10-06 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present in soil and water, humic substances are the most widespread organic compounds, naturally occurring from a physical, chemical, and microbiological transformation of biomolecules. They represent about 25% of the total organic carbon on the Earth and comprise up to 75% of the dissolved organic carbon in water, making them important for multiple environmental processes in both soil and aquatic systems. Despite many decades of extensive study, the formation mechanisms of humic substances are still a subject of discussion and controversy. This book examines the dynamics of humic substances, their physicochemical and biological properties, and methods for their extraction and characterization. The book also sheds light on recent advances and applications of humic substances in agriculture, environment, industry, and medicine.
Download or read book Humic Substances written by G. Davies and published by Garland Science. This book was released on 2003-11-28 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humic substances are ubiquitous in the environment. These remarkable brown biomaterials are found in animals, plants, coals, sediments, soils and water. They are crucial components of the carbon cycle and other life processes. Humic Substances: Nature's Most Versatile Materials contains a compilation of papers presented at the 2002 Humic Substances Seminar and will keep humic substances scientists up to date with the latest research.
Download or read book Humic Substances written by E A Ghabbour and published by Woodhead Publishing. This book was released on 2014-01-30 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume uses a molecular approach to bring the reader up to date with research into the structure and properties of these unusual materials. Agricultural and environmental scientists will find its coverage of HS use for soil remediation and enhancement and in water purification as alternatives to conventional methods invaluable.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-11 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Biogeochemistry in Surface water Systems written by John F. Elder and published by . This book was released on 1988 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Humic Substances to Remediate Polluted Environments From Theory to Practice written by Irina V. Perminova and published by Springer Science & Business Media. This book was released on 2005-03-24 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective remediation of polluted environments is a priority in both Eastern and Western countries. In the U.S. and Europe, remediation costs generally exceed the net economic value of the land. As a result, scientists and engineers on both sides of the Atlantic have aggressively tried to develop novel technologies to meet regulatory standards at a fraction of the costs. In situ remediation shows considerable promise from both technical and economic perspectives. In situ technologies that deploy natural attenuating agents such as humic substances (HS) may be even more cost effective. Numerous studies have shown humics capable of altering both the chemical and the physical speciation of the ecotoxicants and in turn attenuate potential adverse environmental repercussions. Furthermore, the reserves of inexpensive humic materials are immense. Which suggests HS portend great promise as inexpensive amendments to mitigate the environmental impacts of ecotoxicants and as active agents in remediation. To elucidate emerging concepts of humics-based remediation technologies, we organized the NATO Advanced Research Workshop (ARW), entitled "Use of humates to remediate polluted environments: from theory to practice", held on September 23-29, 2002 in Zvenigorod, Russia (see the web-site http://www.mgumus.chem.msu.ru/arw).
Download or read book The Environmental Behaviour of Uranium written by IAEA and published by International Atomic Energy Agency. This book was released on 2023-07-10 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is one of the series of IAEA publications on the environmental behaviour of naturally occurring radionuclides. It outlines uranium behaviour in different environments, as well as its transfer to, and metabolism in, humans. The publication also provides concepts, models and data required for the assessment of the impacts of uranium on non-human biota. Assessing the environmental and health effects of uranium poses specific challenges because of the combination of different types of hazard and potential exposures. Therefore, both the radiotoxicity and chemical toxicity of uranium are considered in this publication.
Download or read book Handbook of Biopolymers written by Sabu Thomas and published by Springer Nature. This book was released on 2023-04-29 with total page 1535 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on biopolymers offers a comprehensive source for biomaterial professionals. It covers all elementary topics related to the properties of biopolymers, the production, and processing of biopolymers, applications of biopolymers, examples of biopolymers, and the future of biopolymers. Edited by experts in the field, the book highlights international professionals’ longstanding experiences and addresses the requirements of practitioners and newcomers in this field in finding a solution to their problems. The book brings together several natural polymers, their extraction/production, and physio-chemical features. The topics covered in this book are biopolymers from renewable sources, marine prokaryotes, soy protein and humus oils, biopolymer recycling, chemical modifications, and specific properties. The book also focuses on the potential and diverse applications of biogenic and bio-derived polymers. The content includes industrial applications of natural polymeric molecules and applications in key areas such as material, biomedical, sensing, packaging, biomedicine, and biotechnology, and tissue engineering applications are discussed in detail. The objective of this book is to fill the gap between the researchers working in the laboratory to cutting-edge technological applications in related industries. This book will be a very valuable reference material for graduates and post-graduate students, academic researchers, professionals, research scholars, and scientists, and for anyone who has a flavor for doing biomaterial research. The books are designed to serve as a bridge between undergraduate textbooks in biochemistry and professional literature. The book provides universal perspectives for an emerging field where classical polymer science blends with molecular biology with highlights on recent advances.
Download or read book Photobiogeochemistry of Organic Matter written by Khan M.G. Mostofa and published by Springer Science & Business Media. This book was released on 2012-12-15 with total page 919 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photoinduced processes, caused by natural sunlight, are key functions for sustaining all living organisms through production and transformation of organic matter (OM) in the biosphere. Production of hydrogen peroxide (H2O2) from OM is a primary step of photoinduced processes, because H2O2 acts as strong reductant and oxidant. It is potentially important in many aquatic reactions, also in association with photosynthesis. Allochthonous and autochthonous dissolved organic matter (DOM) can be involved into several photoinduced or biological processes. DOM subsequently undergoes several physical, chemical, photoinduced and biological processes, which can be affected by global warming. This book is uniquely structured to overview some vital issues, such as: DOM; H2O2 and ROOH; HO•; Degradation of DOM; CDOM, FDOM; Photosynthesis; Chlorophyll; Metal complexation, and Global warming, as well as their mutual interrelationships, based on updated scientific results.
Download or read book Ion Exchange and Solvent Extraction written by Jacob A. Marinsky and published by Routledge. This book was released on 2017-10-05 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ion Exchange and Solvent Extraction series treats ion exchange and solvent extraction both as discrete topics and as a unified, multidisciplinary study - presenting new insights for researchers in many chemical and related field. Containing current knowledge and results in ion exchange, this text: presents an overview of the chemical thermodynamics of cation-exchange reactions, with particular emphasis placed on liquid-phase- and solid-phase-activity coefficient models; describes the development of surface complexation theory and its application to the ion exchange phenomenon; discusses metal-natural colloid surface reactions and their consideration by surface complexation modelling complements; and covers the influence of humic substances on the uptake of metal ions by naturally occurring materials.
Download or read book U S Geological Survey Circular written by and published by . This book was released on 1988 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Studies in Alaska by the U S Geological Survey During 1987 written by and published by . This book was released on 1988 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 1987 Exclusive Economic Zone Symposium on Mapping and Research written by John F. Elder and published by . This book was released on 1988 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Microporous Materials in Environmental Technology written by P. Misaelides and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop on the Application of Natural Microporous Materials for Environmental Technology, Smolenice Castle, Slovakia, 26-30 October 1998
Download or read book Humic Substances written by E A Ghabbour and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humic substances, the remarkable brown biomaterials in animals, coals, plants, sediments, soils and waters, are crucial components of the carbon cycle and other life processes. Thus greater knowledge and understanding of these versatile materials is of great importance to the productivity, health and safety of the world's ecosystems, humans, land and water. Presenting the best and most recent research in this important area, this book focuses on the molecular and chemical aspects of humic substances, with sophisticated analytical, chemical and physical techniques providing vital information. Areas covered include spectroscopy, modelling, mobility, properties and analysis of humic substances. Humic Substances: Structures, Models and Functions will be welcomed by researchers and professionals in academia, industry and government agencies worldwide, particularly where the science of humic substances finds applications, such as environmental remediation and sustainable agriculture.
Download or read book Interactions of Microorganisms with Radionuclides written by M.J. Keith-Roach and published by Elsevier. This book was released on 2002-04-22 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many environmental processes are influenced, if not controlled, by microbial action and it is becoming increasingly important to develop an understanding of microbial roles in geochemistry. This book brings together state of the art research into microbiological processes and the extent to which they affect or can be used to control radioactive elements. The basic principles and fundamental mechanisms by which microbes and radionuclides interact are outlined, the methodology described, potential microbial influences on waste repositories examined, direct and indirect effects on transport both on local and global scales considered and potential technological applications identified.The book is directed towards advanced undergraduate students, postgraduates and researchers in the areas of environmental radioactivity, environmental microbiology, biotechnology and radioactive waste management. It will also be of interest to regulators, policy makers and non-governmental organisations.This novel and timely book offers a fully integrated approach to a topical international issue.
