An Integrated Approach To Monitoring A Field Test Of In Situ Contaminant Destruction

The combination of pump-and-treat and in situ chemical oxidation processes can effectively accelerate the remediation of DNAPL pollutant in groundwater.

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Field Test Research on Soil Compacting Effect of Cast-In Situ Concrete Pipe Pile

Advanced Materials Research ◽

10.4028/scientific5/amr.446-449.1914 ◽

2012 ◽

Vol 446-449 ◽

pp. 1914-1917

Author(s):

Zhi Tao Ma ◽

Han Long Liu ◽

Yong Ping Wang ◽

Ji Ming Zhu

Keyword(s):

Field Test ◽

Pipe Pile ◽

Concrete Pipe

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Simulations of In-Situ Upgrading Process: Interpretation of Laboratory Experiments and Study of Field-Scale Test

SPE Journal ◽

10.2118/190695-pa ◽

2019 ◽

Vol 24 (06) ◽

pp. 2711-2730

Author(s):

A.. Perez–Perez ◽

M.. Mujica Chacín ◽

I.. Bogdanov ◽

A.. Brisset ◽

O.. Garnier

Keyword(s):

Experimental Data ◽

Numerical Model ◽

Field Test ◽

Energy Efficient ◽

Computer Assisted ◽

Solid Residue ◽

Test Results ◽

Field Scale ◽

Scale Test

Summary In–situ upgrading (IU) is a promising method of improved viscous– and heavy–oil recovery. The IU process implies a reservoir heating up and exposure to a temperature higher than 300°C for a time period long enough to promote a series of chemical reactions. The pyrolysis reactions produce lighter oleic and gaseous components, while a solid residue remains underground. In this work, we developed a numerical model of IU using laboratory experience (kinetics measurements and core experiments) and validated the results by applying our model to an IU field–scale test published in the literature. Finally, we studied different operational conditions in a search for energy–efficient configurations. In this work, two types of IU experimental data are used from two vertical–tube experiments with Canadian bitumen cores (0.15 and 0.69 m). A general IU numerical model for the different experimental setups has been developed and compared with experimental data, using a commercial reservoir–simulator framework. This model is capable of representing the phase distribution of pseudocomponents, the thermal decomposition reactions of bitumen fractions, and the generation of gases and residue (solid) under thermal cracking conditions. Simulation results for the cores exposed to a temperature of 380°C and production pressure of 15 bar have shown that oil production (per pseudocomponent) and oil–sample quality were well–predicted by the model. Some differences in gas production and total solid residue were observed with respect to laboratory measurements. Computer–assisted history matching was performed using an uncertainty–analysis tool with the most–important model parameters. To better understand IU field–scale test results, the Shell Viking pilot (Peace River) was modeled and analyzed with the proposed IU model. The appropriate gridblock size was determined and the calculation time was reduced using the adaptive mesh–refinement (AMR) technique. The quality of products, the recovery efficiency, and the energy expenses obtained with our model were in good agreement with the field test results. In addition, the conversion results (upgraded oil, gas, and solid residue) from the experiments were compared with those obtained in the field test. Additional analysis was performed to identify energy–efficient configurations and to understand the role of some key variables (e.g., heating period and rate and the production pressure) in the global IU upgrading performance. We discuss these results, which illustrate and quantify the interplay between energy efficiency and productivity indicators.

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Evaluation of Insecticides for Control of Soybean Looper on Soybean, 1993

Arthropod Management Tests ◽

10.1093/amt/19.1.267a ◽

1994 ◽

Vol 19 (1) ◽

pp. 267-268

Author(s):

Z. D. DeLamar ◽

T. P. Mack

Keyword(s):

Plant Breeding ◽

Field Test ◽

Untreated Control ◽

Row Spacing ◽

Auburn University ◽

Insect Populations ◽

Soybean Looper ◽

Sheet Sample ◽

Flat Fan Nozzle

Abstract This field test was conducted in conventionally planted and tilled soybeans at the E. V. Smith Plant Breeding Unit of Auburn University at Tallassee, AL. Eleven treatments including an untreated control were replicated 4 times in a RCBD. Each plot was 6 rows wide (30 inch row spacing) and 40 ft long. Replicates were separated by a 15 ft alley. Treatments were applied in water on 13 Aug using a boom sprayer with one 80003 flat fan nozzle per row operating at 32 psi and delivering 8.0 gal/acre. Insect populations were monitored with 2 beat sheet samples per plot. One beat sheet sample was done when 36 inches of the 2 adjacent rows were sampled by beating the plants vigorously over the beat sheet. Insects were identified and recorded in situ. Samples were taken 18 h before treatment and at 3, 7 and 10 DAT.

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Integrative and comprehensive Understanding on Polar Environments (iCUPE): the concept and initial results

10.5194/acp-2019-1217 ◽

2020 ◽

Cited By ~ 1

Author(s):

Tuukka Petäjä ◽

Ella-Maria Duplissy ◽

Ksenia Tabakova ◽

Julia Schmale ◽

Barbara Altstädter ◽

...

Keyword(s):

Remote Sensing ◽

Natural Resources ◽

Satellite Remote Sensing ◽

Integrated Approach ◽

The Arctic ◽

Polar Regions ◽

Comprehensive Understanding ◽

In Situ Observations ◽

Initial Results

Abstract. The role of polar regions increases in terms of megatrends such as globalization, new transport routes, demography and use of natural resources consequent effects of regional and transported pollutant concentrations. We set up the ERA-PLANET Strand 4 project iCUPE – integrative and Comprehensive Understanding on Polar Environments to provide novel insights and observational data on global grand challenges with an Arctic focus. We utilize an integrated approach combining in situ observations, satellite remote sensing Earth Observations (EO) and multi-scale modeling to synthesize data from comprehensive long-term measurements, intensive campaigns and satellites to deliver data products, metrics and indicators to the stakeholders concerning the environmental status, availability and extraction of natural resources in the polar areas. The iCUPE work consists of thematic state-of-the-art research and provision of novel data in atmospheric pollution, local sources and transboundary transport, characterization of arctic surfaces and their changes, assessment of concentrations and impacts of heavy metals and persistent organic pollutants and their cycling, quantification of emissions from natural resource extraction and validation and optimization of satellite Earth Observation (EO) data streams. In this paper we introduce the iCUPE project and summarize initial results arising out of integration of comprehensive in situ observations, satellite remote sensing and multiscale modeling in the Arctic context.

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Uranium Natural Attenuation Downgradient of an in Situ Recovery Mine Inferred from a Cross-Hole Field Test

Environmental Science & Technology ◽

10.1021/acs.est.9b01572 ◽

2019 ◽

Vol 53 (13) ◽

pp. 7483-7493 ◽

Cited By ~ 2

Author(s):

Paul W. Reimus ◽

Martin A. Dangelmayr ◽

James T. Clay ◽

Kevin R. Chamberlain

Keyword(s):

Field Test ◽

Natural Attenuation ◽

In Situ Recovery

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Volatile and intermediate volatility organic compounds in suburban Paris: variability, origin and importance for SOA formation

Atmospheric Chemistry and Physics ◽

10.5194/acp-14-10439-2014 ◽

2014 ◽

Vol 14 (19) ◽

pp. 10439-10464 ◽

Cited By ~ 47

Author(s):

W. Ait-Helal ◽

A. Borbon ◽

S. Sauvage ◽

J. A. de Gouw ◽

A. Colomb ◽

...

Keyword(s):

Organic Carbon ◽

Particulate Organic Carbon ◽

Organic Compounds ◽

Regional Scale ◽

Integrated Approach ◽

Anthropogenic Sources ◽

Time Resolved ◽

Times Series

Abstract. Measurements of gaseous and particulate organic carbon were performed during the MEGAPOLI experiments, in July 2009 and January–February 2010, at the SIRTA observatory in suburban Paris. Measurements comprise primary and secondary volatile organic compounds (VOCs), of both anthropogenic and biogenic origins, including C12–C16 n-alkanes of intermediate volatility (IVOCs), suspected to be efficient precursors of secondary organic aerosol (SOA). The time series of gaseous carbon are generally consistent with times series of particulate organic carbon at regional scale, and are clearly affected by meteorology and air mass origin. Concentration levels of anthropogenic VOCs in urban and suburban Paris were surprisingly low (2–963 ppt) compared to other megacities worldwide and to rural continental sites. Urban enhancement ratios of anthropogenic VOC pairs agree well between the urban and suburban Paris sites, showing the regional extent of anthropogenic sources of similar composition. Contrary to other primary anthropogenic VOCs (aromatics and alkanes), IVOCs showed lower concentrations in winter (< 5 ppt) compared to summer (13–27 ppt), which cannot be explained by the gas-particle partitioning theory. Higher concentrations of most oxygenated VOCs in winter (18–5984 ppt) suggest their dominant primary anthropogenic origin. The respective role of primary anthropogenic gaseous compounds in regional SOA formation was investigated by estimating the SOA mass concentration expected from the anthropogenic VOCs and IVOCs (I / VOCs) measured at SIRTA. From an integrated approach based on emission ratios and SOA yields, 38 % of the SOA measured at SIRTA is explained by the measured concentrations of I / VOCs, with a 2% contribution by C12–C16 n-alkane IVOCs. From the results of an alternative time-resolved approach, the average IVOC contribution to SOA formation is estimated to be 7%, which is half of the average contribution of the traditional aromatic compounds (15%). Both approaches, which are based on in situ observations of particular I / VOCs, emphasize the importance of the intermediate volatility compounds in the SOA formation, and support previous results from chamber experiments and modeling studies. They also support the need to make systematic the IVOCs' speciated measurement during field campaigns.

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Estimating liquefaction-induced ground settlements from CPT for level ground

Canadian Geotechnical Journal ◽

10.1139/t02-047 ◽

2002 ◽

Vol 39 (5) ◽

pp. 1168-1180 ◽

Cited By ~ 124

Author(s):

G Zhang ◽

P K Robertson ◽

R W.I Brachman

Keyword(s):

Integrated Approach ◽

Test Results ◽

Liquefaction Resistance ◽

Laboratory Test Results ◽

Medium Risk ◽

Major Factors ◽

Treasure Island ◽

Silty Soils ◽

Ground Settlements

An integrated approach to estimate liquefaction-induced ground settlements using CPT data for sites with level ground is presented. The approach combines an existing CPT-based method to estimate liquefaction resistance with laboratory test results on clean sand to evaluate the liquefaction-induced volumetric strains for sandy and silty soils. The proposed method was used to estimate the settlements at both the Marina District and Treasure Island sites damaged by liquefaction during the Loma Prieta, California, earthquake on 17 October 1989. Good agreement between the calculated and measured liquefaction-induced ground settlements was found. The major factors that affect the estimation of liquefaction-induced ground settlements are also discussed in detail. The recommendations for taking the effects of these factors into account in estimating liquefaction-induced ground settlements using the proposed CPT-based approach are presented. It is suggested that the proposed method may be used to estimate liquefaction-induced settlements for low- to medium-risk projects and also to provide preliminary estimates for higher risk projects.Key words: liquefaction, settlements, earthquake, sand, in situ testing.

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