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851.
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853.
Joseph M. Genco Harvey S. Rosenberg 《Journal of the Air & Waste Management Association (1995)》2013,63(10):989-990
Large quantities of nahcolite ore, a naturally occurring mineral containing between 70 and 90% sodium bicarbonate are known to occur in the Green River Formation of the Piceance Creek Basin of northwestern Colorado.1 Deposits occur in two major forms, as either bedded or disseminated ore. In the latter case, the host rock is oil shale, a dolomitic marlstone containing kerogen material. Bench and pilot scale studies have shown finely divided nahcolite ore to be an effective SO2 sorbent in baghouse filters.2 These studies form the basis of the nahcolite ore injection process as a means for controlling SO2 emissions to the environment.3 Although there have been published investigations of reactions of SO2 with Na2CO3and NaHCO3, 4 no reference could be found to a systematic study of nahcolite ore reacting with SO2. 相似文献
854.
The Honorable Joseph L. Fisher 《Journal of the Air & Waste Management Association (1995)》2013,63(9):910-912
The subject of energy choices and public policy is one that has interested me at a professional level. The outlook for energy supply for Americans is uncertain. Will the OPEC crank the per barrel price of world oil up again this fall by three or four dollars? We don’t know. Will the cost of finding and developing new domestic oil reserves continue to rise, and will the domestic production continue to fall as it has been doing since 1970? We don’t know. Would regulating the price of old oil and natural gas entering into interstate commerce bring forth significantly increased supplies? We don’t know. The chances for reducing oil consumption—or at least checking the rate of increase—are equally uncertain. Will still higher prices, brought on by whatever means, cause people and industries to use less oil? We don’t know. Will demand shift away from oil and natural gas to cheaper, more plentiful energy sources? We don’t know. Will penalties, taxes, or exhortations get the motor vehicle industry to produce more gasoline efficient cars and trucks? We don’t know. We may not even get a chance to try. Will new, less energy intensive lifestyles take over? We don’t know. 相似文献
855.
Robert S. Wright Richard M. Kamens Joseph E. Sickles II Harvey E. Jeffries W. Cary Eaton 《Journal of the Air & Waste Management Association (1995)》2013,63(3):248-250
Solid growth is seen for the air pollution control industry for the rest of the century. Over the next twelve years purchases of particulate control equipment in the U.S. will grow at a rate considerably better than the GNP; growth rates in developing countries will be even higher. The portion of air pollution control expenditures represented by FGD systems is predicted to rise from its current level of 12 percent to 62 percent in 1991 if acid rain legislation is passed as predicted. A significant market is seen also for municipal, industrial and agricultural waste incinerators. Geography plays an important role in the strength of the industry; in the future, industrialized countries will be the sites of new designs and applications, while developing countries will be the life extension of the tried and proven designs. Industrywide, new product development is seen as an underused route to success. 相似文献
856.
Frank E. Butler Joseph E. Knoll M. Rodney Midgett 《Journal of the Air & Waste Management Association (1995)》2013,63(5):581-584
Techniques were developed to sample and analyze the Cr content of participate samples with emphasis on determining the concentration of the carcinogen Cr+6. Cr+6 is extracted to alkaline solution and analyzed colorimetrically. Residual particles are extracted with acid solution to remove soluble Cr+3, which is determined by atomic absorption spectrometry. This methodology was tested on samples from three diverse types of sources: a ferrochrome smelter, a chemical plant, and a refractory brick plant. Identical quadruplicate samples were collected to determine accuracy and precision of the collection and analysis procedures, and extraction of Cr+6 and Cr+3. A statistical analysis revealed that the precision of Cr+6 analysis is comparable to that of the particulate mass determination. The stability of Cr+6 In particulate form and in solution was determined. Size resolved particulate samples were collected to determine the particle size versus the Cr+6 content. At the ferrochrome smelter and the chemical plant the majority of the Cr+6 was contained in the respirable particles. The accuracy and completeness of the chemical methods employed were verified by neutron activation analysis, x-ray photoelectron spectroscopy, and scanning electron microscopyenergy dispersive x-ray analysis. 相似文献
857.
Joseph A. Kaminski 《Journal of the Air & Waste Management Association (1995)》2013,63(8):1042-1050
This article is a series of representative case studies of Department of Defense hazardous waste minimization. Each Military Department and the Defense Logistics Agency describe actual accomplishments. Areas covered range from production line modification to product specification change. These efforts are part of a Department of Defense plan composed of individual programs executed independently by each military service and defense agency. Part VII of the hazardous waste minimization series appears in two separate installments: this installment, Part VII (A), deals with Department of Defense waste minimization efforts in vehicle repair operations, explosives manufacturing, and abrasive blasting processes; Part VII (B) will cover shipboard mercury wastes, industrial chemical control, solvent reclamation, and hazardous property sales efforts. 相似文献
858.
Diana Cabrera-Guzmán Joseph T. Swartzbaugh Andrew W. Weisman 《Journal of the Air & Waste Management Association (1995)》2013,63(12):1670-1676
The Superfund Innovative Technology Evaluation (SITE) program was authorized as part of the 1986 amendments to the Superfund legislation. It represents a joint effort between U.S. EPA’s Office of Research and Development and Office of Solid Waste and Emergency Response. The program is designed to assist and encourage the development of waste treatment technologies that would contribute to more solutions to our hazardous waste problems. Recently, EPA, through the SITE program, issued a work assignment to assess the “stateof- the-art” of electroklnetically enhanced contaminant removal from soils. Prior research efforts, both laboratory and field, have demonstrated that electroosmosis has the potential to be effective In facilitating the removal of certain types of hazardous wastes from soils. Particularly encouraging results have been achieved with inorganics in fine-grained soils where more traditional removal alternatives are less effective. Although the results of various studies suggest that electrokinetics is a promising technology, further testing Is needed at both the laboratory and field levels to fully develop this technology for site remediation. A conceptual test program Is presented based on best available data which incorporates system design and operating parameters used in previous applications of this technology In the use of electrokinetics treatment as a remediation technique at hazardous waste sites. 相似文献
859.
E. Donald Elliott Richard M. Schwartz Alan V. Goldman Alan B. Horowitz Joseph Laznow 《Journal of the Air & Waste Management Association (1995)》2013,63(11):1414-1419
The Clean Air Act Amendments of 1990 establish new criminal and civil liability provisions that can potentially impose substantial fines and penalties. This article reviews the Act's new enforcement and liability provisions. The authors recommend that because of the new enforcement tools available to the federal government, the regulated community should implement effective self-auditing and compliance programs at facilities to help reduce the risk of criminal liability. 相似文献
860.
Amy J.R. Hunter Joseph R. Morency Constance L. Senior Steven J. Davis Mark E. Fraser 《Journal of the Air & Waste Management Association (1995)》2013,63(1):111-117
ABSTRACT A new technology for monitoring airborne heavy metals on aerosols and particulates based on spark-induced breakdown spectroscopy (SIBS) was evaluated at a joint U.S. Environmental Protection Agency (EPA)/U.S. Department of Energy test at the rotary kiln incinerator simulator (RKIS) facility at EPA/Research Triangle Park, NC, in September 1997. The instrument was configured to measure lead and chromium in a simulated combustion flue gas in real time and in situ at target levels of 15 and 75 u, g/dry standard cubic meters. Actual metal concentrations were measured during the tests using EPA Reference Method (RM) 29. The SIBS technology detected both lead and chromium at the low- and high-level concentrations. Additionally, the hardware performed without failure for more than 100 hr of operation and acquired data for 100% of the RM tests. The chromium data were well correlated with concentration increases resulting from duct operations and pressure fluctuations that are known to entrain dust. 相似文献