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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Numerous full-scale operations have been conducted, particularly for sludges produced by the petroleum industry.
Soil conditions are controlled to optimize the rate of contaminant degradation. Runoff collection facilities must be constructed and monitored. Dust control is an important consideration, especially during tilling operations. Landfarming is an ex-situ waste treatment process that is performed in the upper soil zone or in biotreatment cells.
Conditions affecting biological degradation of contaminants e.
Landfarming – Wikipedia
If it cannot be shown that biodegradation occurs for all contaminants of concern, land farming should not be used. Applicability Land farming has been proven most successful in bioremediwtion petroleum hydrocarbons and other less volatile, biodegradable contaminants. Army Environmental Center, MD: Contaminants that have been successfully treated include diesel fuel, No. Land Farming Description Land Farming is a bioremediation technology.
The more chlorinated or nitrated the compound, the more difficult it is to degrade. Contaminants are degraded, bioremediatiin, and immobilized by microbiological processes and by oxidation. Views Read Edit View history. The depth of treatment is limited to the depth of achievable tilling normally 18 inches. Also, the more chlorinated or nitrated the compound, the more difficult it is to degrade. The material is periodically tilled for aeration.
Land farming has been proven most successful in treating petroleum hydrocarbons and other less volatile, biodegradable contaminants. Therefore, the rate at which contaminants are degraded must be balanced with the potential of creating a larger body of contamination.
bioremeviation Technology Development Status Numerous full-scale operations have been conducted, particularly for sludges produced by the petroleum industry. This page was last edited on 26 Augustat The possible leaching of contaminants from the contaminated soil into the ground and groundwater is a major concern.
Many mixed products and wastes include some volatile components that transfer to the atmosphere before they can be degraded. Retrieved from ” https: Introduction to Hazardous Waste Incineration.
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. 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 contaminated soil into soil that biooremediation uncontaminated.
These land farming activities cultivate and enhance microbial degradation of hazardous compounds. Inorganic contaminants will not be biodegraded, but they may be immobilized.
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A large amount of space is required. Many waste constituents may be banned by regulation from being applied to soil. The equipment employed in land farming is typical of that used in agricultural operations.
From Wikipedia, the free encyclopedia. Land farming is considered a commercial technology.
Contaminated soilssedimentsor sludges are transported to the landfarming site, incorporated into the soil surface and periodically turned over tilled to aerate the mixture. Land Farming is a bioremediation technology. 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. Land farms must not be used to dilute contaminants. Moisture content, frequency of aeration, and pH are all conditions that may be controlled.