Landfarming is an ex-situ bioremediation technology in which contaminated soil is mixed with nutrients to form treatment beds which are periodically turned over or tilled to aerate the soil mass.
Soil conditions are often controlled to optimise the rate of contaminant biodegradation, including moisture content (by irrigation or spraying), aeration (by tilling the soil), pH (addition of crushed limestone or agricultural lime), and other amendments such as bulking agents and nutrients.
Landfarming is a medium to long term remediation technology that successfully treats petroleum hydrocarbons including diesel fuel, heating oils, oily sludge, creosote and pesticides.
