Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Petroleum-contaminated"”.
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Enhanced petroleum-contaminated soil bioremediation by plants
A petroleum-contaminated soil remediation study was conducted in a greenhouse. The system consisted of 36 pots, 12 were vegetated with squash, 12 were vegetated with fescue grass and the last 12 units served as unvegetated controls. For each group, three treatments were applied, 1) the addition of …
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An investigation of bioremediation for the conservation of petroleum-contaminated stone monuments
… and focuses on the potential effect of chronic petroleum hydrocarbon ground leakage on the subterranean parts of stone monuments. Bibliographic research revealed that there are many references on the effect of air pollution on building stone. However, research has not been expanded to the field …
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Characterization of redox conditions in a petroleum contaminated aquifer: Implications for bioremediation potential
… using sediment collected from a gasoline-contaminated aquifer at Fort McCoy, Wisconsin, was designed to: 1) evaluate the role of Fe(III) in the development of TEAPs during biodegradation of benzene, toluene, ethylbenzene, and the xylenes (BTEX); 2) examine the biodegradation potential in …
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The Detoxification of Petroleum Contaminated Coastal Plain Sandy Soil Using an Amended Vermicomposting Approach
… treatment approach for detoxifying petroleum hydrocarbon contaminated sandy soil. The bench-scale testing of gasoline and diesel contaminated soil using three test soil vessels and one control soil vessel was performed in a laboratory setting for a six week time period. The control …
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Bioremediation of modelled petroleum-contaminated soils of the Niger Delta and the impact of zeolite augmentation
The bioremediation of modelled petroleum oil-contaminated soils of the Niger Delta by a mixed culture of three hydrocarbon-degrading bacteria, Acinetobacter sp, Rhodococcus sp and Pseudomonas sp, was investigated. These bacterial strains were selected based on criteria that they were able to …
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Groundwater redox conditions at a petroleum contaminated site, Kuils River, South Africa : pathways for BTEX biodegradation
A shallow sandy aquifer, contaminated by petrol from an underground storage tank, was studied to determine if intrinsic bioremediation of the hydrocarbons is taking place. Groundwater samples taken from 32 monitoring wells were analysed for NO₃-,NH₄+, Mn²+, Fe²+, SO₄²-, and ΣH₂S. Portable …
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An investigation into in situ biodegradtion under sulphate-reducing conditions in a petroleum contaminated shallow aquifer
Includes bibliographical references (leaves 70-77).
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Soil washing and post-wash biological treatment of petroleum hydrocarbon contaminated soils
… was conducted to investigate the treatability of petroleum contaminated soils by soil washing and subsequent biological treatment of the different soil fractions. In addition to soils obtained from contaminated sites, studies were also performed on soils contaminated in the laboratory. Soil …
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The effect of freeze /thaw temperature fluctuations on microbial metabolism of petroleum hydrocarbon contaminated Antarctic soil
<p>Petroleum contaminated soil exists at McMurdo Station in Antarctica. These soils were contaminated with historic releases of JP-8 jet fuel. Over time, there does not appear to have been significant reduction in the petroleum concentrations in these soils. This lack of reduction has been …
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Bioremediation of petroleum hydrocarbon contaminated soil
The bioremediation of petroleum contaminated soil in large-scale treatment units was studied in conjunction with Sybron Chemicals Inc., Salem, VA. The soil had been previously contaminated and was spiked with additional petroleum. Water with different characteristics was circulated through the soil …
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Rapid identification of oil contaminated soils using visible near infrared diffuse reflectance spectroscopy
Initially, 46 petroleum contaminated and non-contaminated soil samples were collected and scanned using visible near-infrared diffuse reflectance spectroscopy (VisNIR DRS) at three combinations of moisture content and pretreatment. The VisNIR spectra of soil samples were used to predict total …
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Screening environmental Pseudomonads for characteristics suitable for a bio-engineered oil remediation agent
… from activated sludge wastewater and potentially petroleum-contaminated soils from road side drainage (SUDS) site. These were phenotypically characterized using a number of growth and behaviour assays, including air-liquid interface biofilm formation in static microcosms and in a column bead …
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Characterization of TPH biodegradation patterns in weathered contaminated soil
Two weathered, petroleum contaminated soils were studied to determine if weathered products are amenable to bioremediation and to determine which TPH (total petroleum hydrocarbon) fractions were degrading during particular time frames under different remediation alternatives. Delineation of …
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Functional characterisation of alkane-degrading monooxygenases in Rhodococcus jostii strain 8
… isolated from a propane enrichment culture using petroleum-contaminated soil as an inoculum. R. jostii strain 8 could grow on ethane, propane, butane, octane, naphthalene and some potential intermediates in alkane metabolism. Oxidation studies showed that R. jostii strain 8 is likely to oxidise …
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Computational Tools for Improved Analysis and Assessment of Groundwater Remediation Sites
Remediation of contaminated groundwater remains a high-priority national goal in the United States. Water is essential to life, and new sources of water are needed for an expanding population. Groundwater remediation remains a significant technical challenge despite decades of research into this …
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Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil.
… The predominant pollutant from oilfield waste is petroleum hydrocarbons. Some effects of petroleum hydrocarbon contamination in soil include loss of nutrients, reduced fertility, foul odour, flora/fauna imbalance and potential for transport and distribution to other media. Several studies have …