Remediación natural asistida de un suelo contaminado por elementos traza: experimentación en contenedores PDF Download
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Author: Alfredo Pérez de Mora
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Book Description
Author: Alfredo Pérez de Mora
Publisher:
ISBN:
Category :
Languages : es
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : es
Pages :
Get Book Here
Book Description
Author: Alfredo Pérez de Mora
Publisher:
ISBN: 9783844336948
Category :
Languages : es
Pages : 272
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Book Description
La recuperacion de los suelos contaminados con elementos traza y metales pesados resulta muy dificil debido a que estos no son degradables, al contrario que los contaminantes organicos o los radionucleidos de vida corta. La mayoria de las tecnicas de recuperacion se basan en metodos fisicos y quimicos economicamente costosos y que alteran drasticamente la estructura y las propiedades fisico-quimicas del suelo. Sin embargo, en la ultima decada ha crecido el interes por el desarrollo de tecnicas respetuosas con el medioambiente y economicamente viables. Dentro de estas tecnicas esta la Recuperacion Natural Asistida, basada en la utilizacion de enmiendas y/o plantas que aceleran los procesos de adsorcion, precipitacion y complejacion que ocurren de forma natural en el suelo, los cuales disminuyen la movilidad y la biodisponibilidad de los contaminantes. Dicha tecnica estimula asimismo la actividad microbiana del suelo y el reciclado de nutrientes. El presente trabajo representa un estudio detallado y unico sobre el potencial de varias enmiendas y/o el desarrollo de cubiertas vegetales para estabilizar elementos traza en el suelo y recuperar suelos contaminados con dichos elementos.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309076293
Category : Nature
Languages : en
Pages : 242
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Book Description
Having safe drinking water is important to all Americans. The Environmental Protection Agency's decision in the summer of 2001 to delay implementing a new, more stringent standard for the maximum allowable level for arsenic in drinking water generated a great deal of criticism and controversy. Ultimately at issue were newer data on arsenic beyond those that had been examined in a 1999 National Research Council report. EPA asked the National Research Council for an evaluation of the new data available. The committee's analyses and conclusions are presented in Arsenic in Drinking Water: 2001 Update. New epidemiological studies are critically evaluated, as are new experimental data that provide information on how and at what level arsenic in drinking water can lead to cancer. The report's findings are consistent with those of the 1999 report that found high risks of cancer at the previous federal standard of 50 parts per billion. In fact, the new report concludes that men and women who consume water containing 3 parts per billion of arsenic daily have about a 1 in 1,000 increased risk of developing bladder or lung cancer during their lifetime.
Author: Piet Lens
Publisher: IWA Publishing
ISBN: 1843391007
Category : Science
Languages : en
Pages : 545
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Book Description
Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
Author: M. H. Fulekar
Publisher: CRC Press
ISBN: 1498726259
Category : Science
Languages : en
Pages : 310
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Book Description
Environmental nanotechnology is considered to play a key role in shaping of current environmental engineering and science practices. This book titled "Environmental Nanotechnology" covers the advanced materials, devices, and system development for use in the environmental protection. The development of nano-based materials, understanding their chemistry and characterization using techniques like X- Ray diffraction, FT-IR, EDX, scanning electron microscope (SEM), transmission electron microscope (TEM), high resolution-TEM, etc is included. It also highlights the scope for their applications in environmental protection, environmental remediation and environmental biosensors for detection, monitoring and assessment. Key Features: Covers basic to advanced Nano-based materials, their synthesis, development, characterization and applications and all the updated information related to environmental nanotechnology. Discusses implications of nanomaterials on the environment and applications of nanotechnology to protect the environment. Illustrates specific topics such as ethics of nanotechnology development, Nano-biotechnology, and application in wastewater technology. Includes applications of nanomaterials for combating global climate change and carbon sequestration. Gives examples of field applications of environmental nanotechnology. This book covers advanced materials, devices, and system developments for use in environmental protection. The development of nano-based materials, understanding its chemistry and characterization by the use of X-Ray diffraction, FT-IR, EDX, scanning electron microscope (SEM), transmission electron microscope (TEM), and high resolution-TEM give the scope for their application in environmental protection, environmental remediation, and environmental biosensors for detection, monitoring, and assessment. The green chemistry based on nano-based materials prevents pollution and controls environmental contaminants.
Author: Rainer Stegmann
Publisher: Springer Science & Business Media
ISBN: 9783540417361
Category : Nature
Languages : en
Pages : 688
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Book Description
The treatment of contaminated soil is a permanently relevant subject for ensuirng the quality of the environment. A wide variety of soils contaminated witht a broad range of harmful chemical compounds all around the the world, call for many different treatment strategies. Research activities focus on affordable methods offering the greatest possible effect, whilst limiting the potential side effects. This book sums up the research activities of Research Centre 188 which has cooperated with the Technical University of Hamburg-Harburg, the University of Hamburg and GKSS in Geesthacht over the last 12 years, thus greatly advancing our knowledge in this field.
