BIOREMEDIATION OF OIL-CONTAMINATED SOIL BY LANDFARMING: ASSESSMENT OF SOIL QUALITY USING A FIELD TEST KIT. H.M. Edenborn1, K.A. The biological removal of petroleum products using landfarming has been applied commercially in large scale with relative success. The technology has been. PDF | Landfarming is an attractive bioremediation treatment approach for soils contaminated with polycyclic aromatic hydrocarbons (PAHs).
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Contaminated soils are mixed with soil amendments such as soil bulking agents and nutrients, and then they are tilled into the earth. Composting also generally takes place in aboveground piles.
Many mixed products and wastes include some volatile components that transfer to the atmosphere before they can be degraded.
Land Farming is a bioremediation technology. The more chlorinated or nitrated the compound, the more difficult it is to degrade.
Limitations and Concerns A land farm must be managed properly to prevent both on-site and off-site problems with ground water, surface waterair, and food chain contamination. Conditions affecting biological degradation of contaminants e.
Contaminated soilssedimentsor sludges are transported to the landfarming site, incorporated into the soil surface and periodically turned over tilled to aerate the mixture. Hydrocarbon compounds that have been identified as being not readily degraded by land farming include creosotepentachlorophenol PCP bioeemediation, and bunker C oil. Dust control is an important consideration, especially during tilling operations.
Contaminants bioremediatino degraded, transformed, and immobilized by microbiological processes and by oxidation. Land farms must not be used to dilute contaminants.
Many waste constituents may be banned by regulation from being applied to soil. If it cannot be shown that biodegradation occurs for all contaminants of concern, land farming should not be used. Retrieved from ” https: Views Read Edit View history. Contaminants that have been successfully treated include diesel fuel, No.
Inorganic contaminants will not be biodegraded, but they may be immobilized.
This page was last edited on 26 Augustat Land farming has been proven most successful in treating petroleum hydrocarbons and other less volatile, biodegradable contaminants. A large amount of space is required. Runoff collection facilities must be constructed and monitored. The depth of treatment is limited to the depth of achievable tilling normally 18 inches.
Land Farming Description Land Farming is a bioremediation technology. Technology Development Status Numerous full-scale operations have been conducted, particularly for sludges produced by the petroleum industry.
Land Farming differs from composting because it actually incorporates contaminated soil into soil that is uncontaminated. These land farming activities cultivate and enhance microbial degradation of hazardous compounds.
A land farm must be managed properly to prevent both on-site and off-site problems with ground water, surface waterair, and food chain contamination. Applicability Land farming has been proven most successful in treating petroleum hydrocarbons and other less volatile, biodegradable contaminants. From Wikipedia, the free encyclopedia. The material is periodically tilled for aeration.
Landfarming – Wikipedia
Introduction to Hazardous Waste Incineration. Therefore, the rate at which contaminants are degraded must be balanced with the potential of creating a larger body of contamination. Also, the more chlorinated or nitrated the compound, the more difficult it is to degrade. The possible leaching of contaminants from the contaminated soil into the ground and groundwater is a major concern.
This technique has been used for years in the management and disposal of drill cuttingsoily sludge biorfmediation other petroleum refinery wastes. Soil conditions are controlled to optimize the rate of contaminant degradation.