Determination Of Total Petroleum Hydrocarbons Tph Using Total Carbon Analysis
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Author | : |
Publisher | : |
Total Pages | : 5 |
Release | : 2002 |
Genre | : |
ISBN | : |
Several methods have been proposed to replace the Freon(TM)-extraction method to determine total petroleum hydrocarbon (TPH) content. For reasons of cost, sensitivity, precision, or simplicity, none of the replacement methods are feasible for analysis of radioactive samples at our facility. We have developed a method to measure total petroleum hydrocarbon content in aqueous sample matrixes using total organic carbon (total carbon) determination. The total carbon content (TC1) of the sample is measured using a total organic carbon analyzer. The sample is then contacted with a small volume of non-pokar solvent to extract the total petroleum hydrocarbons. The total carbon content of the resultant aqueous phase of the extracted sample (TC2) is measured. Total petroleum hydrocarbon content is calculated (TPH = TC1-TC2). The resultant data are consistent with results obtained using Freon(TM) extraction followed by infrared absorbance.
Author | : Wade Weisman |
Publisher | : |
Total Pages | : 120 |
Release | : 1998 |
Genre | : Science |
ISBN | : |
Author | : Saranya Kuppusamy |
Publisher | : Springer |
Total Pages | : 264 |
Release | : 2019-08-13 |
Genre | : Science |
ISBN | : 3030240355 |
The term “total petroleum hydrocarbons” (TPHs) is used for any mixture of several hundred hydrocarbons found in crude oil, and they represent the sum of volatile petroleum hydrocarbons and extractable petroleum hydrocarbons. The petrol-range organics include hydrocarbons from C6 to C10, while diesel-range organics are C10-C28 hydrocarbons. Environmental pollution by petroleum hydrocarbons is one of the major global concerns, particularly in oil-yielding countries. In fact, there are more than five million potentially contaminated areas worldwide that represent, in general, a lost economic opportunity and a threat to the health and well-being of humans and the environment. Petroleum-contaminated sites constitute almost one-third of the total sites polluted with chemicals around the globe. The land contamination caused by industrialization was recognized as early as the 1960s, but less than a tenth of potentially contaminated lands have been remediated due to the nature of the contamination, cost, technical impracticability, and insufficient land legislation and enforcement. This book is the first single source that provides comprehensive information on the different aspects of TPHs, such as sources and range of products, methods of analysis, fate and bioavailability, ecological implications including impact on human health, potential approaches for bioremediation such as risk-based remediation, and regulatory assessment procedures for TPH-contaminated sites. As such, it is a valuable resource for researchers, graduate students, technicians in the oil industry and remediation practitioners, as well as policy makers.
Author | : |
Publisher | : DIANE Publishing |
Total Pages | : 123 |
Release | : |
Genre | : |
ISBN | : 1422331652 |
Author | : Joanne Sara Hoffmann |
Publisher | : |
Total Pages | : 78 |
Release | : 1997 |
Genre | : Oil pollution of soils |
ISBN | : |
Author | : Melissa N. Dunkle |
Publisher | : John Wiley & Sons |
Total Pages | : 464 |
Release | : 2020-09-01 |
Genre | : Science |
ISBN | : 1119523303 |
A thorough introduction to environmental monitoring in the oil and gas industry Analytical Techniques in the Oil and Gas Industry for Environmental Monitoring examines the analytical side of the oil and gas industry as it also provides an overall introduction to the industry. You’ll discover how oil and natural gas are sourced, refined, and processed. You can learn about what’s produced from oil and natural gas, and why evaluating these sourced resources is important. The book discusses the conventional analyses for oil and natural gas feeds, along with their limitations. It offers detailed descriptions of advanced analytical techniques that are commercially available, plus explanations of gas and oil industry equipment and instrumentation. You’ll find technique descriptions supplemented with a list of references as well as with real-life application examples. With this book as a reference, you can prepare to apply specific analytical methods in your organization’s lab environment. Analytical Techniques can also serve as your comprehensive resource on key techniques in the characterization of oil and gas samples, within both refinery and environmental contexts. Understand of the scope of oil and gas industry techniques available Consider the benefits and limitations of each available process Prepare for applying analytical techniques in your lab See real examples and a list of references for each technique Read descriptions of off-line analytics, as well as on-line and process applications As a chemist, engineer, instructor, or student, this book will also expand your awareness of the role these techniques have in environmental monitoring and environmental impact assessments.
Author | : |
Publisher | : |
Total Pages | : 182 |
Release | : 1996 |
Genre | : Soil pollution |
ISBN | : |
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 278 |
Release | : 2003-03-14 |
Genre | : Science |
ISBN | : 0309084385 |
Since the early 1970s, experts have recognized that petroleum pollutants were being discharged in marine waters worldwide, from oil spills, vessel operations, and land-based sources. Public attention to oil spills has forced improvements. Still, a considerable amount of oil is discharged yearly into sensitive coastal environments. Oil in the Sea provides the best available estimate of oil pollutant discharge into marine waters, including an evaluation of the methods for assessing petroleum load and a discussion about the concerns these loads represent. Featuring close-up looks at the Exxon Valdez spill and other notable events, the book identifies important research questions and makes recommendations for better analysis ofâ€"and more effective measures againstâ€"pollutant discharge. The book discusses: Inputâ€"where the discharges come from, including the role of two-stroke engines used on recreational craft. Behavior or fateâ€"how oil is affected by processes such as evaporation as it moves through the marine environment. Effectsâ€"what we know about the effects of petroleum hydrocarbons on marine organisms and ecosystems. Providing a needed update on a problem of international importance, this book will be of interest to energy policy makers, industry officials and managers, engineers and researchers, and advocates for the marine environment.
Author | : |
Publisher | : DIANE Publishing |
Total Pages | : 129 |
Release | : |
Genre | : |
ISBN | : 1422331474 |
Author | : |
Publisher | : |
Total Pages | : 101 |
Release | : 2003 |
Genre | : |
ISBN | : |
A demonstration of the Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG) approach for assessing human health risk at weathered petroleum release sites was performed at a petroleum, oil and lubricant underground storage tank site (JP-4 and JP-4-8) located at the Springfield Air National Guard Base, Springfield, Ohio. A total of nine subsurface soil samples were obtained for this demonstration project at subsurface depths ranging from 4 to 6 feet. Soil analyses included both volatile and extractable petroleum hydrocarbons using the TPHCWG direct method and the Massachusetts Department 0 Environmental Protection (MA DEP) methodology to compare the approaches. Soil core composites were analyzed for trichloroethylene, gasoline-range organics, volatile petroleum hydrocarbons, benzene, toluene, ethylbenzene, and xylenes (BTEX), diesel-range organics, polycyclic aromatic hydrocarbons, and extractable petroleum hydrocarbons using both the TPHCWG and MA DEP protocols. No benzene or trichloroethylene was detected and only trace concentrations of toluene, ethylbenzene and xylenes were. detected. Results, in combination with the finding of very low concentrations of BTEX, indicated that the hydrocarbons detected in site soils were composed of a weathered petroleum mixture. Overall, the TPHCWG approach provides better insight into the nature of petroleum hydrocarbon contamination (i.e., it provides more robust fractional analysis data) and is less likely to overestimate the risk posed to human receptors under the same exposure scenario.