Leachate recirculation at the Nanticoke sanitary landfill using a bioreactor trench. Final report
Technical Report
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OSTI ID:293257
A one-year landfill leachate recirculation demonstration project was conducted in a 20-acre cell at the Broome County, NY, Nanticoke Landfill using a retrofit bioreactor trench design concept to introduce landfill leachate to the surrounding refuse mass. Over the course of the project, 1.1 million gallons of landfill leachate were distributed through the bioreactor trench, substantially increasing the moisture content (approaching 70%) of the surrounding municipal solid waste. Experimental results also indicate that the bioreactor trench functioned as an in-situ anaerobic bioreactor, effectively treating landfill leachate retained within the trench due to decreasing refuse permeability and enhanced leachate hydraulic retention time. A significant and steady decline was noted in landfill leachate chemical oxygen demand (COD), volatile fatty acid (VFA), and total organic carbon (TOC), suggesting that the rapid biological stabilization of the refuse within the 20-acre demonstration area was influenced by the bioreactor trench. Characterization of the resulting landfill gas indicated that optimum methane:carbon dioxide ratios were measured in all experimental gas wells and in the bioreactor trench. No apparent enhancement of landfill gas production was noted in promixity to the bioreactor trench.
- Research Organization:
- State Univ. of New York, Environmental Research Center, Oswego, NY (United States); Broome County, Div. of Solid Waste Management, Binghamton, NY (United States); New York State Energy Research and Development Authority, Albany, NY (United States)
- Sponsoring Organization:
- New York State Energy Research and Development Authority, Albany, NY (United States)
- OSTI ID:
- 293257
- Report Number(s):
- PB--99-112153/XAB
- Country of Publication:
- United States
- Language:
- English
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