Introduction. Toxic soil inside a capped slurry wall accumulated noxious aqueous leachate that leaked into the environment. The objective was to explore several on-site innovative treatment technologies as an alternative to the transportation and off-site treatment of leachate.
Reverse Osmosis. Evangelista co-ran a pilot-scale reverse osmosis system that allowed the leachate’s small water molecules to pass through or permeate a semi-permeable membrane. The relatively larger contaminant molecules were retained or concentrated behind the membrane. The permeate was sampled for chemical analyses, since it was the liquid that would be discharged directly into the environment. The results demonstrated that reverse osmosis was very successful in removing a wide range of chemicals of concern from a deadly leachate. The visual results for reverse osmosis treatment were remarkable---a dark leachate was made into a crystal clear liquid permeate.
More Information. Reverse Osmosis and Ultraviolet Photolysis/Ozonation Testing at the PAS Site, Oswego, NY.
H. Whittaker, T. Kady, R. Evangelista, and C. Goulet.
PDF 1.4 MB
Reverse Osmosis: On Site Treatability Study of Landfill Leachate at the PAS Site in Oswego, NY. C. Goulet, H. Whittaker, R. Evangelista, and T. Kady. Forum on Innovative Hazardous Waste Treatment Technologies:
Domestic and International Conference Proceedings, Atlanta, GA.
PDF 1.6 MB
Pilot-Scale Engineering Study, Pollution Abatement Services Site, Oswego, NY, Draft Report, Volume 1.
R. Evangelista. Prepared for the U.S. Environmental Protection Agency.
PDF 12.2 MB
Project Status Presentation to Region II for Pollution Abatement Services Site, Oswego, NY. R. Evangelista.
Prepared for the U.S. Environmental Protection Agency.
PDF 8.9 MB
