Filters: Tags: natural attenuation (X)18 results (76ms)
Monitoring Anaerobic Natural Attenuation of Petroleum Using a Novel In Situ Respiration Method in Low-Permeability Sediment
Vadose zone attenuation of organic compounds at a crude oil spill site — Interactions between biogeochemical reactions and multicomponent gas transport
Contaminant attenuation processes in the vadose zone of a crude oil spill site near Bemidji, MN have been simulated with a reactive transport model that includes multicomponent gas transport, solute transport, and the most relevant biogeochemical reactions. Dissolution and volatilization of oil components, their aerobic and anaerobic degradation coupled with sequential electron acceptor consumption, ingress of atmospheric O2, and the release of CH4 and CO2 from the smear zone generated by the floating oil were considered. The focus of the simulations was to assess the dynamics between biodegradation and gas transport processes in the vadose zone, to evaluate the rates and contributions of different electron accepting...
Modified Radial Diagram Approach for Evaluating Natural Attenuation Trends for Chlorinated Solvents and Inorganic Redox Indicators
Potential for bioremediation of petroleum hydrocarbons in groundwater under cold climate conditions: A review
Globally, bioremediation is a common choice for remediation of petroleum hydrocarbon-contaminated sites. For application at cold climate sites, bioremediation approaches are appealing because they have potential to be more efficient and cost-effective than alternative, more energy intensive approaches. Several bioremediation approaches have been reported to be successful for petroleum hydrocarbon-contaminated soils at cold climate sites. In contrast, there are relatively few publications on applications of bioremediation for petroleum-contaminated groundwater at cold climate sites. Most of the existing relevant groundwater studies were conducted at sites with either no permafrost, or with sporadic to discontinuous...
Effects of Heterogeneity in Aquifer Permeability and Biomass on Biodegradation Rate Calculations--Results from Numerical Simulations
Carbon Isotope Fractionation during Microbial Dechlorination of Trichloroethene, cis-1,2-Dichloroethene, and Vinyl Chloride: Implications for Assessment of Natural Attenuation
Attenuation the Natural Way A former wood-preserving site offers a case study for evaluating the potential of monitored natural attenuation
Changes in Subsurface Catabolic Gene Frequencies during Natural Attenuation of Petroleum Hydrocarbons