ABSTRACT
Leachate was recirculated at the Fresh Kills Landfill on Staten Island, New York between 1986 and 1993. An alternative leachate recirculation system was constructed in early 1993, providing direct injection of leachate into the landfill lifts as they were constructed. Excess leachate is transported by truck to a local wastewater treatment facility. While minimal offsite treatment has been required, the landfill operators have expressed the opinion that the wells have limited impact area and recommended modifications which would move leachate laterally away from the wells. From the technical literature, telephone inquiry of state regulators, and contact with the solid waste community, a number of full-scale landfill bioreactors have been identified. The Lower Mount Washington Valley Secure Landfill, located in Conway, NH, is composed of eight hydraulically separated double-lined landfill cells. Collected leachate was pumped to the top of the landfill to a seep field dug into the waste and constructed in a similar fashion to the drain system.
