Download or read book Modified Sulfur Cement Solidification of Low level Wastes written by George Arnold and published by . This book was released on 1985 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modified sulfur cement solidification of low level wastes written by Brookhaven National Laboratory and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This topical report describes the results of an investigation on the solidification of low-level radioactive wastes in modified sulfur cement. The work was performed as part of the Waste Form Evaluation Program, sponsored by the US Department of Energy's Low-Level Waste Management Program. Modified sulfur cement is a thermoplastic material developed by the US Bureau of Mines. Processing of waste and binder was accomplished by means of both a single-screw extruder and a dual-action mixing vessel. Waste types selected for this study included those resulting from advanced volume reduction technologies (dry evaporator concentrate salts and incinerator ash) and those which remain problematic for solidification using contemporary agents (ion exchange resins). Process development studies were conducted to ascertain optimal process control parameters for successful solidification. Maximum waste loadings were determined for each waste type and method of processing. Property evaluation testing was carried out on laboratory scale specimens in order to compare with waste form performance for other potential matrix materials. Waste form property testing included compressive strength, water immersion, thermal cycling and radionuclide leachability. Recommended waste loadings of 40 wt. % sodium sulfate and boric acid salts and 43 wt. % incinerator ash, which are based on processing and performance considerations, are reported. Solidification efficiencies for these waste types represent significant improvements over those of hydraulic cements. Due to poor waste form performance, incorporation of ion exchange resin waste in modified sulfur cement is not recommended.
Download or read book Stabilization and Solidification of Hazardous Radioactive and Mixed Wastes written by Roger D. Spence and published by CRC Press. This book was released on 2004-12-28 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of stabilization and solidification techniques in the field of waste treatment reflects the efforts to better protect human health and the environment with modern advances in materials and technology. Stabilization and Solidification of Hazardous, Radioactive, and Mixed Wastes provides comprehensive information including case studie
Download or read book Stabilization and Solidification of Hazardous Radioactive and Mixed Wastes written by T. Michael Gilliam and published by ASTM International. This book was released on 1996 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Modified Sulfur Cement and Hydraulic Cement for Encapsulation of Radioactive and Mixed Wastes written by and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of solidification/stabilization systems for low-level radioactive waste (LLW) and mixed waste, both in the commercial sector and at Department of Energy (DOE) facilities, utilize hydraulic cement (such as portland cement) to encapsulate waste materials and yield a monolithic solid waste form for disposal. A new and innovative process utilizing modified sulfur cement developed by the US Bureau of Mines has been applied at Brookhaven National Laboratory (BNL) for the encapsulation of many of these problem'' wastes. Modified sulfur cement is a thermoplastic material, and as such, it can be heated above it's melting point (120°C), combined with dry waste products to form a homogeneous mixture, and cooled to form a monolithic solid product. Under sponsorship of the DOE, research and development efforts at BNL have successfully applied the modified sulfur cement process for treatment of a range of LLWs including sodium sulfate salts, boric acid salts, and incinerator bottom ash and for mixed waste contaminated incinerator fly ash. Process development studies were conducted to determine optimal waste loadings for each waste type. Property evaluation studies were conducted to test waste form behavior under disposal conditions by applying relevant performance testing criteria established by the Nuclear Regulatory Commission (for LLW) and the Environmental Protection Agency (for hazardous wastes). Based on both processing and performance considerations, significantly greater waste loadings were achieved using modified sulfur cement when compared with hydraulic cement. Technology demonstration of the modified sulfur cement encapsulation system using production-scale equipment is scheduled for FY 1991. 12 refs., 8 figs., 3 tabs.
Download or read book Sulfur Concrete for the Construction Industry written by Abdel-Mohsen Onsy Mohamed and published by J. Ross Publishing. This book was released on 2010-07-15 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a detailed and accessible examination of the properties, behaviour, and uses of sulfur cement and concrete in the construction industry. It discusses the basic properties and behaviour of sulfur cement and concrete materials, evaluates new sulfur market applications, and much more.
Download or read book Testing and Evaluation of Polyethylene and Sulfur Cement Waste Forms written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses the results of recent studies related to the use of polyethylene and modified sulfur cement as new binder materials for the improved solidification of low-level wastes. Waste streams selected for this study include those which result from advanced volume reduction technologies (dry evaporator concentrate salts and incinerator ash) and those that remain problematic for solidification using contemporary agents (ion-exchange resins). Maximum waste loadings were determined for each waste type. Recommended waste loadings of 70 wt % sodium sulfate, 50 wt % boric acid, 40 wt % incinerator ash and 30 wt % ion exchange resins, which are based on process control and waste form performance considerations are reported for polyethylene. For sulfur cement the recommended waste loadings of 40 wt % sodium sulfate and boric acid salts and 43 wt % incinerator ash are reported. However, incorporation of ion-exchange resin waste in modified sulfur cement is not recommended due to poor waste form performance. The work presented in this paper will, in part, present data that can be used to assess the acceptability of polyethylene and modified sulfur cement waste forms to meet the requirements of 10 CFR 61. 8 refs., 10 figs., 6 tabs.
Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Technologies in Hazardous Waste Management 8 written by D. William Tedder and published by Springer Science & Business Media. This book was released on 2000-05-31 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several long-term trends in technology evolution have become apparent since these symposia began in 1989. Earlier presenters more frequently discussed treatment methods involving harsh and extensive human intervention. As the symposia have continued, the number of presentations describing extremely harsh and expensive treatment technologies have gradually been supplanted by more subtle and gentler methods. Such methods include subsurface-engineered barriers, phytoremediation, and bioremediation. Nineteen manuscripts were selected for inclusion in this volume, based upon peer review, scientific merit, the editors' perceptions of lasting value or innovative features, and the general applicability of either the technology itself or the scientific methods and scholarly details provided by the authors. General topics include: soil treatment, groundwater treatment, and radioactive waste treatment.
Download or read book Hazardous and Radioactive Waste Treatment Technologies Handbook written by Chang H. Oh and published by CRC Press. This book was released on 2001-06-27 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: With detailed photos and schematic system diagrams, the Hazardous and Radioactive Waste Treatment Technologies Handbook provides the latest information on current technologies in the market. Intended as a reference for scientists, engineers, and engineering students, it covers waste-related thermal and non-thermal technologies, separation techniques, and stabilization technologies. It provides an overview of recent waste technologies, for both hazardous chemical wastes and radioactive wastes. By implementing the techniques presented in this book, readers will be able to decide which appropriate technology to use and how to design the equipment for their particular needs.
Download or read book Sulfur Polymer Cement a Solidification and Stabilization Agent for Hazardous and Radioactive Wastes written by and published by . This book was released on 1992 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic cements have been the primary radioactive waste stabilization agents in the United States for 50 years. Twelve years ago, Brookhaven National Laboratory was funded by the Department of Energy's Defense Low-Level Waste Management Program to test and develop sulfur polymer cement (SPC). It has stabilized routine wastes as well as some troublesome wastes with high waste-to-agent ratios. The Department of Energy's Hazardous Waste Remedial Action Program joined the effort by providing funding for testing and developing sulfur polymer cement as a hazardous-waste stabilization agent. Sulfur polymer cement has passed all the laboratory scale tests required by the US Environmental Protection Agency and US Nuclear Regulatory Commission. Two decades of tests by the US Bureau of Mines and private concrete contractors indicate this agent is likely to exceed other agents in longevity. This bulletin provides technical data from pertinent tests conducted by these various entities.
Download or read book Technology 2001 written by and published by . This book was released on 1991 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Comparison of Modified Sulfur Cement and Hydraulic Cement for Encapsulation of Radioactive and Mixed Wastes written by and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA 540 2 written by and published by . This book was released on 1990 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur Polymer Cement a New Stabilization Agent for Mixed and Low Level Radioactive Waste written by and published by . This book was released on 1991 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solidification and stabilization agents for radioactive, hazardous, and mixed wastes are failing to pass governmental tests at alarming rates. The Department of Energy's National Low-Level Waste Management Program funded testing of Sulfur Polymer Cement (SPC) by Brookhaven National Laboratory during the 1980s. Those tests and tests by the US Bureau of Mines (the original developer of SPC), universities, states, and the concrete industry have shown SPC to be superior to hydraulic cements in most cases. Superior in what wastes can be successfully combined and in the quantity of waste that can be combined and still pass the tests established by the US Environmental Protection Agency and the US Nuclear Regulatory Commission.
Download or read book Emerging Technologies in Hazardous Waste Management IV written by Daniel William Tedder and published by . This book was released on 1994 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 18 papers were selected from over 200 presented at the symposium (Atlanta, Georgia, September 1992) to reflect the most important or promising directions in hazardous waste management, and to avoid duplicating information in earlier volumes of the series. Among the remedial technologies described for soils and sediments are electrokinetic and the mobilization of specific ions. Other methods include the crystallization of mechanical pulp mill effluents and the removal of gasoline vapors from air streams by biofiltration. Radioactive and mixed waste are considered in studies of the Hanford waste site in Washington and reports of laboratory-scale studies. Annotation copyright by Book News, Inc., Portland, OR
