Landfill longevity and bioremediation explored at geoenvironment 2000

Article Abstract:

Bioremediation is the most effective way to clean up municipal waste landfills that may amplify ground motions during earthquakes. Seismic impact is created at the interface of geomembranes and landfills, especially those with steep slopes. The high flow of gases that come out from the geomembranes can also lead to new kinds of land failures. The landfills contain iron, gasoline derivatives and other organic compounds and by bioremediation organic compounds can be reduced by 90% to 95%. The cost and efficiency of the process solely depends upon the supply of oxygen.

Management, Sanitary landfills, Fills (Earthwork)

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Highway administration promotes bioremediation

Article Abstract:

The use of bioremediation techniques in minimizing costs associated with treatment of contaminated soil was discussed at a workshop sponsored by the Civil Engineering Research Foundation of the American Society of Civil Engineers in Washington, DC. Bioremediation helps states develop disposal and treatment techniques for highway projects that are economically feasible. Several constraints associated with bioremediation were also highlighted at the event. These include treatment times, state regulations and operating concerns.

Methods, Conferences, meetings and seminars, Civil engineering, American Society of Civil Engineers, Soil disinfection, Soil conservation

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Bioremediation beats waste at Texas Superfund site

Article Abstract:

In situ and slurry-phase bioremediation has been found to be effective in cleaning a hazardous-waste lagoon at the French Superfund site in Texas. The site is a former sand quarry where 70 million gallons of industrial waste were dischargedfrom 1966 up to 1971. Bioremediation was used to clean up 300,000 tons of sludge and contaminated soil. The lagoon was divided into two cells because of possible air emissions. An oxygen-dissolution technology which provides microorganisms with pure air was used to limit air emissions.

Waste management, Superfund, Hazardous waste sites

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