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Author :
Release : 1994
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis The Hanford Site Tank Waste Remediation System Technical Strategy by :
Download or read book The Hanford Site Tank Waste Remediation System Technical Strategy written by . This book was released on 1994. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Release : 1996-10-10
Genre : Science
Kind : eBook
Book Rating : 857/5 ( reviews)
Book Synopsis The Hanford Tanks by : National Research Council
Download or read book The Hanford Tanks written by National Research Council. This book was released on 1996-10-10. Available in PDF, EPUB and Kindle. Book excerpt: The Hanford Site (also known as the Hanford Reservation) occupies approximately 1,450 km2 (560 square miles) along the Columbia River in south-central Washington, north of the city of Richland. The site was established by the federal government in 1943 to produce plutonium for nuclear weapons. Currently, the mission of the site, under the responsibility of the U.S. Department of Energy (DOE), is management of wastes generated by the weapons program and remediation of the environment contaminated by that waste. As part of that mission, DOE and the State of Washington Department of Ecology prepared the Hanford Site Tank Waste Remediation System Draft Environmental Impact Statement (DEIS). The Hanford Tanks is a general review of the DEIS. Its findings and recommendations are the subject of this report. Selection of a disposition plan for these wastes is a decision of national importance, involving potential environmental and health risks, technical challenges, and costs of tens to hundreds of billions of dollars. The last comprehensive analysis of these issues was completed 10 years ago, and several major changes in plans have occurred since. Therefore, the current reevaluation is timely and prudent. This report endorses the decision to prepare this new environmental impact statement, and in particular the decision to evaluate a wide range of alternatives not restricted to those encouraged by current regulatory policies.
Author :
Release : 1992
Genre :
Kind : eBook
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Book Synopsis Research and Development Support of the Hanford Site Tank Waste Remediation System by :
Download or read book Research and Development Support of the Hanford Site Tank Waste Remediation System written by . This book was released on 1992. Available in PDF, EPUB and Kindle. Book excerpt: The research and development of new technology in support of the tank waste remediation system (TWRS) program at Hanford is largely driven by the unique situation with the Hanford radioactive tank wastes. The operational history at Hanford has involved three different major processes and several major campaigns to recover fission products from the wastes, and has not maintained a segregation of the high-level wastes. The result is a very diverse inventory with very high content of solids of many different chemical constituents and great complexity. The R & D program must not only assure that an acceptable strategy for remediation of these wastes can be put in place, it must also define ways of improving the cost effectiveness of the strategy to make the mammoth task more tractable.
Author :
Release : 1994
Genre :
Kind : eBook
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Book Synopsis An Analysis of Alternative New Technical Strategy Flowsheets for Tank Waste Remediation System by :
Download or read book An Analysis of Alternative New Technical Strategy Flowsheets for Tank Waste Remediation System written by . This book was released on 1994. Available in PDF, EPUB and Kindle. Book excerpt: The Hanford Tank remediation plans have gone through a few revisions for the best waste processing system. Some designs have been complex while others have been fairly simple. One of the key means in understanding and selecting among the various proposed systems is a discrete events modeling of the system. This modeling provides insight into (1) The total required size of the system; (2) The amount of material, such as reagents and other added materials that must be supplied; (3) The final mass of waste that must be stored; and (4) Areas within the system where a small change can greatly effect the total system. Discrete events modeling also provides the means by which various proposed systems may be compared. It is the framework in which variations within a particular system may be explored and compared to other instantiations. This study examines the current New Technical Strategy flowsheet system with discrete event modeling. Some of the possible variations within that system are examined and compared. Further, an previously proposed, more complex system is examined.
Author :
Release : 1992
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Clean Option by :
Download or read book Clean Option written by . This book was released on 1992. Available in PDF, EPUB and Kindle. Book excerpt: Plans for remediation of the Hanford underground storage tanks are currently undergoing reevaluation. As part of this process, many options are being considered for the Tank Waste Remediation System (MRS). The clean option'' described here proposes an aggressive waste processing strategy to achieve the three ma or objectives: Greatly reduce the volume of high-level waste (HLW) to lessen demands on geologic repository space; decrease by several orders of magnitude the amount of radioactivity and toxicity now in the waste tanks that will be left permanently onsite as low-level solid waste (LLW); and accomplish the first two objectives without significantly increasing the total amount of waste for disposal. The study discussed here focuses on process chemistry, as it provides the foundation for achieving the clean option objectives. Because demonstrated separation steps have been identified and connected in a way that meets these objectives, the study concludes that the process chemistry rests on a firm technical basis.
