Landfarming Top Journals
Land Farming is a tool for the bioremediation. Contaminated soils are combined with soil additives, such as soil bulking agents and nutrients, and are then tilled into the ground. The soil is tilled regularly for ventilation. Contaminants are degraded by microbiological processes and oxidation, converted and immobilised. Soil conditions are controlled to optimize the rate of degradation of the contaminants. Moisture quality, aeration level, and pH are all controllable factors. Land Farming varies from composting, because it directly transforms uncontaminated polluted soil into soil. In general, composting is often performed in piles above ground. Land farms shall not be used for the dilution of pollutants. If
biodegradation cannot be shown to occur for all contaminants of concern, it should not be used to farm land. Landfarming is a method of ex-situ treatment of
waste that is carried out in the upper soil zone or in biotreatment cells. Contaminated soils, sediments, or sludges are transported to the landfarm site, mixed into the soil surface and regularly turned over (tilled) to aerate the mixture. Inorganic pollutants are not going to be biodegraded, but may be immobilised. Where volatile organic compounds ( VOCs) and semi-volatile organic compounds (SVOCs) are present, control of off-gas (i.e. air emissions) may be necessary. Dust management is a particularly important concern during tilling operations. Many
waste components can be prohibited from being added to the soil by regulation. Treatment depth is limited to the tilling depth attainable. It takes up a huge amount of room.
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