Source emissions

Xem 1-20 trên 112 kết quả Source emissions
  • This 1993 document entitled "Assessment of Sources of Air, Water, and Land Pollution: A Guide to Rapid Source Inventory Techniques" provides techniques for conducting source inventories in Chapter 2 and describes models for estimating air emissions under current controls in Chapter 3. Appendix II includes the United Nations (UN) classification of industries and services.

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  • Assessment of source of air, water, and land pollution - Part II : Approaches for consideration in formulating evironmantal control strategies.The environment is a combination of natural factors and social surrounds the outside of a certain system. They affect this system and identify trends and status of its existence. Environment can be seen as a set, in which the system is considered as a subset. Environment of a system is considered to be interactive with that system

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  • Acoustic emission (AE) is a phenomenon in which elastic or stress waves are emitted from rapid, localized change of strain energy in material. The practical application of the AE first emerged in the 1950's, but only in the last 20 years the science, technology and applications of AE have progressed significantly.

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  • Understanding greenhouse gas sources, emissions, measurements, and management is essential for capture, utilization, reduction, and storage of greenhouse gas, which plays a crucial role in issues such as global warming and climate change. Taking advantage of the authors' experience in greenhouse gases, this book discusses an overview of recently developed techniques, methods, and strategies: - A comprehensive source investigation of greenhouse gases that are emitted from hydrocarbon reservoirs, vehicle transportation, agricultural landscapes, farms, non-cattle confined buildings, and so on.

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  • The field of photonics is enormously broad, covering everything from light sources to geometric and wave optics to fiber optics. Laser and light source technology is a subset of photonics whose importance is often underestimated. This book focuses on these technologies with a good degree of depth, without attempting to be overly broad and all-inclusive of various photonics concepts. For example, fiber optics is largely omitted in this book except when relevant, such as when fiber amplifiers are examined.

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  • To engage communities, particularly environmental justice communities, communities in a dialog about the development of this rulemaking early in the process Part of EPA’s overall outreach strategy to stakeholders Builds on EPA’s earlier Clean Air Act 101 webinar for EPA s communities Rulemaking combines several regulatory programs including programs that look at risk and those that don’t ► ► .

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  • Refinery Process Air Emissions The most significant air emission sources in oil refineries are catalytic or thermal cracking units, catalytic reformer units, sulfur recovery plants, storage vessels, fluid coking units wastewater streams, cooling towers, equipment leaks, blowdown systems, vacuum distillation units, steam boilers, process furnaces, process heaters, compressor engines, barge or ship loading and gasoline loading racks specifically located at petroleum refineries.

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  • Contaminated bottom sediments and their negative impacts on water quality are a major problem in surface waters throughout the United States as well as in many other parts of the world. Even after elimination of the primary contaminant sources, these bottom sediments will be a main source of contaminants for many years to come. In order to determine environmentally-effective and cost-effective remedial actions, the transport and fate of these sediments and associated contaminants must be understood and quantified.

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  • European Union (EU) environmental legislation has developed over the last 30 years and comprises today some 300 legal acts and a large number of other policy documents of relevance for EU environmental policy. Section 1.2.1 of this chapter gives a general introduction to the EU forms of legislation and the principles of the EU environmental policy. The legislation related to the environmental aspects of textile processes in general, primarily the emissions to water and air, is discussed in sections 1.2 to 1.6....

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  • Airborne instruments designed for remote sensing of the surface of the Earth and its atmosphere are important sources of information regarding the processes occurring on Earth. This information is used widely in the fields of meteorology, geography, geology, and oceanology, among other branches of the sciences.

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  • Diesel engines, also known as CI engines, possess a wide field of applications as energy converters because of their higher efficiency. However, diesel engines are a major source of NOX and particulate matter (PM) emissions. Because of its importance, five chapters in this book have been devoted to the formulation and control of these pollutants. The world is currently experiencing an oil crisis. Gaseous fuels like natural gas, pure hydrogen gas, biomass-based and coke-based syngas can be considered as alternative fuels for diesel engines.

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  • Worldwide attention to environmental issues combined with the energy crisis force us to reduce greenhouse emissions and increase the usage of renewable energy sources as a solution to providing an efficient environment. This book addresses the current issues of sustainable growth and applications in renewable energy sources. The fifteen chapters of the book have been divided into two sections to organize the information accessible to readers.

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  • Sound emission (AE) is one of the most important test non-destructive (NDT) methods of materials, construction and machinery. The sound emission method with most other technical non-destructive testing in two important respects. first of all, the signal source is always located inside the investigated materials / structures. The second important thing is the NDT method to detect geometrical discontinuities, while emission sound motion detection errors.

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  • Chemical oxidation technologies are predominantly used to address contaminants in the source area saturated zone and capillary fringe. Cost concerns can preclude the use of chemical oxidation technologies to address large and dilute petroleum contaminant plumes. More frequently, chemical oxidation technologies are employed to treat smaller source areas where the petroleum mass is more concentrated.

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  • industry spending, analysis of the economic impacts of this activity, and projections of future drilling, natural gas production, and related economic impacts (Considine, et al., 2009, 2010). Unlike the previous studies, however, this report estimates the impact Marcellus production has on prices for natural gas and expenditures for natural gas and electricity in Pennsylvania. This report also presents an analysis of labor market and sales tax data that affirms the economic stimulus provided by the Marcellus industry.

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  • Ultraviolet Spectroscopy and UV Lasers covers a range of subjects, from ultraviolet (UV) and vacuum ultraviolet (VUV) sources to the latest advances in instrumentation and techniques for absorption, emission, and fluorescence spectroscopy. The book will prove useful to scientists pursuing spectroscopy-related research in fields as varied and diverse as optical physics and engineering, analytical chemistry, biology, and laser technology.

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  • Semiconductor lasers are among the most important optoelectronics devices. Remarkable development has been accomplished in the three decades since the first achievement in room-temperature continuous oscillation, which opened the possibility of practical applications of semiconductor lasers. Today, various types of semiconductor lasers are mass-produced and widely used as coherent light sources for a variety of applications, including optical fiber communication systems and optical disk memory systems....

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  • 7 Mobile Sources and Control Approaches While the sulfurous fogs crept across London in early December 1952, the townspeople were not fully aware of what was happening. But many townspeople were pleased that the conversion of the city’s trolleys from electricity to diesel powered buses was now complete. London, December 1952 Probably the most important change in sources of U.S. air contaminant emissions from the early 20th to the early 21st century was the shift from stationary sources to predominantly mobile sources.

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  • The following sections provide an overview of the technical and qualitative characteristics of a wide range of alternative fuels that can replace coal in cement kilns. These fuels include agricultural and non-agricultural biomass, chemical and hazardous wastes, petroleum-based wastes, and miscellaneous waste fuels. Each of these alternatives are described in detail, including a discussion of average substitution rates, energy and water content of the fuels, carbon dioxide emissions factors, and change in carbon emissions per ton1 of coal replacement.

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  • The last two explanatory variables are control variables, while the remaining variables are the corporate governance variables that we discussed in Section VA. As discussed in Section II, the signs of most of these variables are empirical issues, so we use the observed signs to interpret our results. The top section of Table 7 shows estimates of four variants of equation (6) for the full sample.

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