Download or read book Laboratory Evaluation of a Volatile Organic Compound Analysis System for the Site Characterization and Analysis Penetrometer System written by and published by . This book was released on 1995 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Evaluation of a Volatile Organic Compound Analysis System for the Site Characterization and Analysis Penetrometer System written by and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional subsurface contaminant mapping technology requiring borings and laboratory analysis of soil samples is time-consuming, expensive, and often results in inadequate descriptions of contaminant plumes. Adaptation of advanced chemical techniques to cone penetrometer technology provides a means for real time detection and mapping of contamination in the subsurface. An in situ volatile organic compound sampling system to detect ppb levels of BTEX compounds (benzene, toluene, ethylbenzene, and total xylenes) and trichloroethene has been developed for the site characterization and analysis penetrometer system. The sampler is pushed to a desired depth in the subsurface, an interior actuator rod is retracted to form a sampling chamber, and a measured volume of soil is sampled and purged in place. Volatilized compounds are transferred to the surface where they are trapped on tenax and desorbed into a portable gas chromatograph. The soil sample is expelled, and the penetrometer is pushed to a new depth where the process is repeated. Materials and system-operating conditions were optimized during laboratory tests. Stainless steel tubing heated to 100 deg C and a carrier gas flow rate of 40 ml per min yielded maximum recoveries (>90 percent) in a 30-min sampling period. Complete system tests yielded recoveries greater than 85 percent from soil spiked with BTEX and other chlorinated volatile compounds. These recoveries compared favorably with spike recovery data obtained from U.S. Environmental Protection Agency Method 8240 by gas chromatograph/mass spectrometer. Overall, the sampling system was able to successfully thermally desorb BTEX compounds from spiked soil and transport the volatilized compounds through 50 ft of heated transfer line into a tenax trap with recoveries greater than 85 percent. jg p5.
Download or read book Tri Service Site Characterization and Analysis Penetrometer System SCAPS Validation of the Hydrosparge Volatile Organic Compound Sensor written by and published by . This book was released on 2001 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site characterization for subsurface contaminants is time consuming and costly. The Hydrosparge VOC sensor was developed for the Tri-Services Site characterization and Analysis Penetrometer System (SCAPS) program to provide in situ VOC detection in ground waters. The system consists of a direct push well for groundwater access, an in situ sparge module, and a direct-sampling ion trop mass spectrometer. The Hydrosparge VOC sensor was tested at three geographically different sites across the country. The results obtained with the SCARS in situ technique indicate a strong linear relationship with EPA methods with regression coefficients ranging between 0.63 and 0.88 and the slope of the regression line between 1.1 and 1.2. The SCAPS Hydrosparge VOC sensor has been demonstrated to reduce the time and cost required to characterize sites by directing the placement of a reduced number of conventional monitoring wells.
Download or read book Tri Service Site Characterization and Analysis Penetrometer System SCAPS Validation of the Thermal Desorption Sampler for Volatile Organic Compounds written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volatile organic compounds (VOCs) are among the most frequently identified contaminants in soil and groundwater samples obtained during investigation of hazardous waste sites. The thermal desorption sampler (TDS), was developed for the Site Characterization and Analysis Penetrometer System (SCAPS) program to provide in situ analysis of VOCs in vadose zone and saturated soils. In operation, the TDS captures an estimated quantity of soil below ground, thermally desorbs the VOCs, and transfers them to the surface where they are analyzed on a field poflable ion trap mass spectrometer (ITMS). This analysis is sensitive to the low ppb range for chlorinated solvents and BETX compounds. The TDS was field tested at five geologically distinct sites across the country. Field data were compared to laboratory data (EPA SW-846 Method 8260B (USEPA 1995)) for validation of the technique. Data analysis indicated that the in situ analysis of the primary VOC contaminant at each site demonstrated good correlation with the validation method with a liner regression correlation coefficient between 0.8 and 1.0 and the slope of the regression line between 0.7 and 1.3. Secondary VOC contaminants of lesser concentration demonstrated poorer correlation that could be attributed to the lack of chromatographic separation prior to the ITMS analysis.
Download or read book Tri Service Characterization and Analysis Penetrometer System SCAPS Accelerated Sensor Development Project written by and published by . This book was released on 1999 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA National Publications Catalog written by United States. Environmental Protection Agency and published by . This book was released on 1999 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Desorption VOC Sampler written by and published by . This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA 200 B written by and published by . This book was released on 1999 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Cleanup at Navy Facilities written by National Research Council and published by National Academies Press. This book was released on 2003-07-16 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of hazardous waste sites across the United States has grown to approximately 217,000, with billions of cubic yards of soil, sediment, and groundwater plumes requiring remediation. Sites contaminated with recalcitrant contaminants or with complex hydrogeological features have proved to be a significant challenge to cleanup on every levelâ€"technologically, financially, legally, and sociopolitically. Like many federal agencies, the Navy is a responsible party with a large liability in hazardous waste sites. Environmental Cleanup at Navy Facilitites applies the concepts of adaptive management to complex, high-risk hazardous waste sites that are typical of the military, EPA, and other responsible parties. The report suggests ways to make forward progress at sites with recalcitrant contamination that have stalled prior to meeting cleanup goals. This encompasses more rigorous data collection and analysis, consideration of alternative treatment technologies, and comprehensive long-term stewardship.
Download or read book Underground Sensing written by Sibel Pamukcu and published by Academic Press. This book was released on 2017-10-22 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underground Sensing: Monitoring and Hazard Detection for Environment and Infrastructure brings the target audience the technical and practical knowledge of existing technologies of subsurface sensing and monitoring based on a classification of their functionality. In addition, the book introduces emerging technologies and applications of sensing for environmental and geo-hazards in subsurface – focusing on sensing platforms that can enable fully distributed global measurements. Finally, users will find a comprehensive exploration of the future of underground sensing that can meet demands for preemptive and sustainable response to underground hazards. New concepts and paradigms based on passively powered and/or on-demand activated, embeddable sensor platforms are presented to bridge the gap between real-time monitoring and global measurements. Presents a one-stop-shop reference for underground sensing and monitoring needs that saves valuable research time Provides application cases for all technologies that are covered and described in detail Includes full, four color images of equipment and applications Designed to cover a wide variety of underground sensors, from agriculture to geohazards
Download or read book Characterization Monitoring and Sensor Technology Integrated Program CMST IP written by United States. Department of Energy and published by . This book was released on 1994 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Innovations in Site Characterization written by and published by . This book was released on 2001 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearings on National Defense Authorization Act for Fiscal Year 1995 S 2182 H R 4301 and Oversight of Previously Authorized Programs Before the Committee on Armed Services House of Representatives One Hundred Third Congress Second Session written by United States. Congress. House. Committee on Armed Services. Military Application of Nuclear Energy Panel and published by . This book was released on 1994 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tri Service Site Characterization and Analysis Penetrometer System SCAPS Accelerated Sensor Development Project written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1994, the Strategic Environmental Research and Development Program (SERDP) funded a Tri-Service effort to accelerate the development and fielding of environmental sensing technologies to extend the capabilities of the Site Characterization and Analysis Penetrometer System (SCAPS). This effort, which was completed in 1998, produced a wide range of SCAPS sensors, samplers, and supporting technologies that allow SCAPS to detect, delineate, and map subsurface contaminants including petroleum, oils, and lubricants (POL), toxic metals, explosives and energetic, volatile organic compounds (VOC), and radioactive wastes. This report describes the various SCAPS sensors developed as part of the SERDP-funded effort including laser induced fluorescence, Raman spectroscopy, laser induced breakdown spectroscopy, X-ray fluorescence, electrochemical sensor, biosensor, and spectral gamma probes. In addition, the development and testing of cone-penetrometer based samplers, including thermal desorption and multiport samplers, are detailed. Results of laboratory evaluation and field validation studies are presented, and technology transfer accomplishments are described. Included in this report is a bibliography of technical papers, reports, presentations, and patents produced during the course of this project.
Download or read book Hearings Before and Special Reports Made by Committee on Armed Services of the House of Representatives on Subjects Affecting the Naval and Military Establishments written by and published by . This book was released on 1994 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Environmental Pollution and Cleanup written by Robert A. Meyers and published by Wiley-Interscience. This book was released on 1999-04-05 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise up-to-date guide to all aspects of environmental pollution and cleanup. Human invention and innovation have brought about tremendous improvements in the quality of life of millions of people around the world today-but progress has its price. Environmental pollution is rapidly attacking the Earth's ecosphere. While advances have been made and new disciplines have emerged to identify, monitor, regulate, and compensate for environmental pollutants, it will take the combined efforts of numerous specialists to solve the problem. It will also take the efforts of an informed public that, through its voting and buying habits, has the power to determine whether or not the threat to our environment can be contained. This 2-volume encyclopedia provides all readers, regardless of scientific background or training, with a working knowledge of contemporary issues in environmental pollution and cleanup. Based on Wiley's critically acclaimed, 8-volume Encyclopedia of Environmental Analysis and Remediation, this compact A-to-Z reference features the same breadth and quality of coverage-and clarity of presentation-found in the original. It includes: Over 200 self-contained, thoroughly cross-referenced articles on essential aspects of environmental pollution and cleanup. Coverage of key topics in hazardous waste, air pollution control, biosphere pollution, health effects, nuclear waste, environmental law and regulation, water reclamation, and more. Integrated coverage of both legal and policy issues and technological and environmental concerns. Hundreds of photographs, figures, charts, and tables that help illustrate major points, explain difficult material, and summarize important data. Bibliographic entries keyed to the text that list sources of additional information on selected topics. This book is an ideal reference for high school and college students and a convenient resource for scientists, environmental consultants, and anyone who needs clear, reliable, up-to-date information on environmental pollution and cleanup.
Download or read book Practical Handbook of Environmental Site Characterization and Ground Water Monitoring written by David M. Nielsen and published by CRC Press. This book was released on 2005-09-28 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published in 1991, the first edition of The Practical Handbook of Ground-Water Monitoring quickly became the gold standard reference on the topic of ground-water monitoring. But, as in all rapidly evolving fields, regulations change, technology advances, methods improve, and research reveals flaws in prior thinking. As a consequence, books t
