Compare and contrast bioremediation, soil vapor extraction, and air sparging.

Compare and contrast bioremediation, soil vapor extraction, and air sparging. What method(s) could you use to enhance their efficiencies in removing contaminants from the environment?

Identify the technology or technologies which should be considered for eliminating or significantly reducing the contamination problems

Given the following site conditions, identify the technology or technologies which should be considered for eliminating or significantly reducing the contamination problems. Explain the reason for your choice(s). What problems might be encountered in applying your choices? Is there additional information that would be helpful? If so, what kind? The site is an abandoned printing plant located in Northern Virgina. Both soil and groundwater are contaminated with petroleum hydrocarbons and semi-VOC’s that have a small Henry’s constant. The sediments are a heterogeneous mixture of various size sands with thin (2--4 inch) clay layers. The water table is approximately 15 feet below the gro... click for more

You are the environmental manager of the site and there has been a release of VOC's and metals onto the ground surface and have migrated into the subsurface sediments and groundwater.

You are the environmental manager of the site and there has been a release of VOC's and metals onto the ground surface and have migrated into the subsurface sediments and groundwater. The underlying aquifer is very close to the surface, only about 2 feet< and the groundwater generally flows toward the lake. From benchmarks, the elevation of the site is 20 feet above sea level and the lake is about 7 feet above sea level. This distance to the lake from the release is about 400 feet. The subsurface sediments are: lacustrine (lake deposits) to a depth of 7 feet from the surface with a permeability of 10-3. Underlying the lake deposits is 10 feet of glacial till with a permeability of 10-2. U... click for more

Types of Phytoremediation

If soil is contaminated with dioxin, what kind of phytoremediation may be successful in removing it and why?

Question

If soil is contaminated with TCE, can phytoremediation remove it and how?