leachate

noun

1. (countable, uncountable)The liquid produced when water percolates through a permeable material.

   “1980, Grant E. Kimmel, Olin C. Braids, Leachate Plumes in Ground Water from Babylon and Islip Landfills, Long Island, New York, US Geological Survey, Professional Paper 1085, page 32, Probably the main reason that leachate enrichment was highest near the bottom of the aquifer beneath the landfill is that the heavier, leachate-rich water sinks by gravity as it moves out of the refuse, and not because it is displaced downward by freshwater from the surface.”

   “1994, James M. Brannon, Tommy E. Myers, Barbara A. Tardy, Leachate Testing and Evaluation for Freshwater Sediments, US Army Corps of Engineers, Miscellaneous Paper D-94-1, page 23, Two aspects of leachate generation from CDFs are of particular concern, leachate contaminant concentrations and leachate flow.”

   “1999, George Mulamoottil, Edward A. McBean, Frank Rovers (editors), Constructed Wetlands for the Treatment of Landfill Leachates, CRC Press (Lewis Publishers), page xiv, However, the development of this technology using constructed wetlands to treat landfill leachates has to be supplemented by investigations on the breakdown and pathways of the contaminants.”