Landfarming

Landfarming is an ex situ waste treatment process that is performed in the upper soil zone or in biotreatment cells. Contaminated soils, sediments, or sludges are transported to the landfarming site, mixed into the soil surface and periodically turned over (tilled) to aerate the mixture.^[1] Landfarming commonly uses a clay or composite liner to intercept leaching contaminants and prevent groundwater pollution,^[2] however, a liner is not a universal requirement.^[3]

^ Best Practice Note: Landfarming (PDF), Sydney NSW: Environment Protection Authority, April 2014, ISBN 978-1-74359-607-4
^ Julie Van Deuren; Teressa Lloyd; Shobha Chhetry; Raycharn Liou; James Peck (January 2002), "4.13 Landfarming", Remediation Technologies Screening Matrix and Reference Guide, 4th Edition, U.S. Army Environmental Center, MD: Federal Remediation Technology Roundtable (FRTR)
^ Dennis R. Heldman, ed. (2003), Encyclopedia of Agricultural, Food, and Biological Engineering, CRC Press, p. 114, ISBN 978-0824709389, Landfarming is mostly conducted in lined or unlined soil beds that...