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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Land Farming incorporates contaminated soil into soil that is uncontaminated, creating a larger volume of contaminated material. Many mixed products and wastes include some volatile laandfarming that transfer to the atmosphere before they can be degraded. Land Farming Description Land Farming is a bioremediation technology.
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. Contaminated soils are mixed with soil amendments such as soil bulking agents and nutrients, and then they are tilled into the earth.
Contaminants that have been successfully treated include diesel fuel, No.
Landfarming is an ex-situ waste treatment process that is performed in the upper soil biodemediation or in biotreatment cells. The depth of treatment is limited to the depth of achievable tilling normally 18 inches.
Contaminated soilssedimentsor sludges are transported to the landfarming site, incorporated into the soil surface and periodically turned over tilled to aerate the mixture. Technology Development Status Numerous full-scale operations have been conducted, particularly for sludges produced by the petroleum industry.
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Contaminants are degraded, transformed, and immobilized by microbiological processes and by oxidation. Inorganic contaminants will not be biodegraded, but they may be immobilized.
This technique has been used for years in the management and disposal of drill cuttingsoily sludge and other petroleum refinery landfarmig. Runoff collection facilities must be constructed and monitored. Views Read Edit View history. Land farming has been proven most successful in treating petroleum hydrocarbons and other less volatile, biodegradable contaminants.
Hydrocarbon compounds that have been identified as being not readily degraded by land farming include creosotepentachlorophenol PCPand bunker C oil. The equipment bioremediaton in land farming is typical of that used in agricultural operations.
Landfarming – Wikipedia
Composting also generally takes place in aboveground piles. Conditions affecting biological degradation of contaminants e. A large amount of space is required.
Land farms must not be used to dilute contaminants. Retrieved from ” https: The more chlorinated or nitrated the compound, the more difficult it is to degrade. 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.
Land Farming differs from composting because it actually incorporates bioreemediation soil into soil that is uncontaminated.
This page was last edited on 26 Augustat If it cannot be shown that biodegradation occurs for all contaminants of concern, lsndfarming farming should not be used.
Many waste constituents may be banned by regulation from being applied to soil. Therefore, the rate at which contaminants are degraded must be balanced with the potential of creating a larger body of contamination.
Army Environmental Center, MD: Applicability Land farming has been proven most successful in treating petroleum hydrocarbons and other less volatile, biodegradable contaminants. Introduction to Hazardous Waste Incineration.
Numerous full-scale operations have been conducted, particularly for sludges produced by the petroleum industry.