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Author: E.P. Horwitz
Publisher: Springer Science & Business Media
ISBN: 1461525268
Category : Science
Languages : en
Pages : 210
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Book Description
Chemical pretreatment of nuclear wastes refers to the sequence of separations processes used to partition such wastes into a small volume of high-level waste for deep geologic disposal and a larger volume of low-level waste for disposal in a near-surface facility. Pretreatment of nuclear wastes now stored at several U. S. Department of Energy sites ranges from simple solid-liquid separations to more complex chemical steps, such as dissolution of sludges and removal of selected radionuclides, e. g. , 90Sr, 99Tc, 137CS, and TRU (transuranium) elements. The driving force for development of chemical pretreatment processes for nuclear wastes is the economic advantage of waste minimization as reflected in lower costs for near-surface disposal compared to the high cost of disposing of wastes in a deep geologic repository. This latter theme is expertly and authoritatively discussed in the introductory paper by J. and L. Bell. Seven papers in this volume describe several separations processes developed or being developed to pretreat the large volume of nuclear wastes stored at the US DOE Hanford and Savannah River sites. These papers include descriptions of the type and amount of important nuclear wastes stored at the Hanford and Savannah River sites as well as presently envisioned strategies for their treatment and final disposal. A paper by Strachan et al. discusses chemical and radiolytic mechanisms for the formation and release of potentially explosive hydrogen gas in Tank 241-SY-101 at the Hanford site.
Author: E.P. Horwitz
Publisher: Springer Science & Business Media
ISBN: 1461525268
Category : Science
Languages : en
Pages : 210
Get Book Here
Book Description
Chemical pretreatment of nuclear wastes refers to the sequence of separations processes used to partition such wastes into a small volume of high-level waste for deep geologic disposal and a larger volume of low-level waste for disposal in a near-surface facility. Pretreatment of nuclear wastes now stored at several U. S. Department of Energy sites ranges from simple solid-liquid separations to more complex chemical steps, such as dissolution of sludges and removal of selected radionuclides, e. g. , 90Sr, 99Tc, 137CS, and TRU (transuranium) elements. The driving force for development of chemical pretreatment processes for nuclear wastes is the economic advantage of waste minimization as reflected in lower costs for near-surface disposal compared to the high cost of disposing of wastes in a deep geologic repository. This latter theme is expertly and authoritatively discussed in the introductory paper by J. and L. Bell. Seven papers in this volume describe several separations processes developed or being developed to pretreat the large volume of nuclear wastes stored at the US DOE Hanford and Savannah River sites. These papers include descriptions of the type and amount of important nuclear wastes stored at the Hanford and Savannah River sites as well as presently envisioned strategies for their treatment and final disposal. A paper by Strachan et al. discusses chemical and radiolytic mechanisms for the formation and release of potentially explosive hydrogen gas in Tank 241-SY-101 at the Hanford site.
Author: International Atomic Energy Agency
Publisher: IAEA
ISBN:
Category : Business & Economics
Languages : en
Pages : 188
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Book Description
Over the past decade significant progress has been achieved in the development of waste characterization and control procedures and equipment as a direct response to ever-increasing requirements for quality and reliability of information on waste characteristics. Failure in control procedures at any step can have important, adverse consequences and may result in producing waste packages which are not compliant with the waste acceptance criteria for disposal, thereby adversely impacting the repository. The information and guidance included in this publication corresponds to recent achievements and reflects the optimum approaches, thereby reducing the potential for error and enhancing the quality of the end product. -- Publisher's description.
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 164
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Book Description
Provides detailed information on the handling, processing and storage techniques most widely used and recommended for waste from non-fuel-cycle activities. The report was designed to meet the needs of developing countries by focusing on the most simple, affordable and reliable techniques and discussing their advantages and limitations.
Author: Michael I. Ojovan
Publisher: Elsevier
ISBN: 0080455719
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
Safety and environmental impact is of uppermost concern when dealing with the movement and storage of nuclear waste. The 20 chapters in 'An Introduction to Nuclear Waste Immobilisation' cover all important aspects of immobilisation, from nuclear decay, to regulations, to new technologies and methods. Significant focus is given to the analysis of the various matrices used in transport: cement, bitumen and glass, with the greatest attention being given to glass. The last chapter concentrates on the performance assessment of each matrix, and on new developments of ceramics and glass composite materials, thermochemical methods and in-situ metal matrix immobilisation. The book thoroughly covers all issues surrounding nuclear waste: from where to locate nuclear waste in the environment, through nuclear waste generation and sources, treatment schemes and technologies, immobilisation technologies and waste forms, disposal and long term behaviour. Particular attention is paid to internationally approved and worldwide-applied approaches and technologies.* Each chapter focuses on a different matrix used in nuclear waste immobilisation: Cement, bitumen, glass and new materials.* Keeps the most important issues surrounding nuclear waste – such as treatment schemes and technologies, and disposal - at the forefront.
Author: D. Max Roundhill
Publisher: Springer Science & Business Media
ISBN: 1475752040
Category : Science
Languages : en
Pages : 387
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Book Description
Extractions of Metals from Soils and Waters represents a new emphasis in the series Modern Inorganic Chemistry, namely the impact inorganic chemistry can have on the environment. Also, this is the first volume ever to introduce the reader to all aspects of heavy metal extraction. While the primary emphasis is on complexation chemistry, attention is also paid to phase transfer aspects. Particular methods of note include electrokinetics, phytoremediation, and sensors. Aimed primarily at chemists, this book will also appeal to engineers, plant biochemists, environmental health specialists, and practitioners or students of environmental law.
Author:
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 96
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Book Description
The purpose of this report is to provide a review of chemical precipitation processes for the treatment of low and intermediate level aqueous waste. It supersedes Technical Reports Series No. 89, Chemical Treatment of Radioactive Wastes, published in 1968. It provides data on the performance of existing plants and on improved processes that are in an advanced state of development.
Author: France. Commissariat à l'énergie atomique (CEA)
Publisher: Le Moniteur Editions
ISBN:
Category : Science
Languages : en
Pages : 160
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Book Description
Author: Messrs L. Cecille
Publisher: Springer Science & Business Media
ISBN: 9401136548
Category : Science
Languages : en
Pages : 363
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Book Description
The purpose of this technical seminar was to evaluate the present state of the art in matter of advanced separation techniques like solvent extraction, ion-exchange, chemical precipitation, membrane and electrical processes for the treatment of radioactive liquid waste and a selection of some specific industrial non-radioactive effluents. Through this initiative, the organisers aimed at promoting the exchange of information between scientists from various origins (universities, research centres and industries) while contributing to the necessary overcoming of the artificial barriers which too often limit the "technology transfer" between the nuclear and non-nuclear sectors. Vll CONTENTS PREFACE ........................................ V ABBREVIATIONS ...................................... xiv OPENING SESSION WELCOME ADDRESS C. MANCINI (ENEA) .................................... 3 OPENING ADDRESS S. FINZI (CEC) ....................................... 7 AREAS WHERE ADVANCED SEPARATION TECHNIQUES ARE DESIRABLE G. GROSSI (ENEA), L. CECILLE (CEC) ....................... 11 REVIEW OF NEW EXTRACT ANTS POTENTIALLY APPLICABLE TO THE PROCESSING OF RADIOACTIVE LIQUID WASTES (Summary) P.R. DANESI, International Atomic Energy Agency, Vienna, Austria . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . .
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 180
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Book Description
Simple text and photographs introduce the life of George Washington Carver.
Author: Bernd Nowack
Publisher:
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 480
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Book Description
Chelating agents are in widespread use in technical and industrial applications. They are used extensively to control metal speciation in the pulp and paper industry, in photographical processes, in cooling waters, the oil industry, and in the nuclear industry. Further, they are incorporated into industrial and household cleaners, personal care products, and foodstuffs. As a result of such extensive use, anthropogenic chelating agents are ubiquitous in the environment. Due to their strong interactions with metals they have received considerable attention due to the potential for adverse effects on ecosystems and health. The goal of this book is to bring together researchers from a variety of disciplines - chemistry, environmental chemistry, soil chemistry, microbiology, phytoremediation, bioremediation, wastewater treatment, industry (pulp and paper, textile, oil production) - to present different aspects of the unique chemical properties of these compounds. This book describes the biogeochemistry of these important compounds, from their structure and speciation, through their behavior in natural systems, to their use in enhanced phytoremediation and their removal through biodegradation.
