The Environmental Research & Education Foundation (EREF) Board of Directors has announced three new research grants for solid waste research in 2016. The research that is conducted through these grants goes hand-in-hand with EREF’s mission to further advance sustainable solid waste management practices.
The grant recipients are:
Assessing Accuracy of Tracer Dilution Measurements of Methane Emissions from Landfills with Wind Modeling
Investigators: Paul Imhoff, University of Delaware and Fotini Chow, University of California, Berkley
Award Amount: $93,069
The main objectives of this research are to:
- Develop a 3D land-atmosphere model for the Southeastern U.S. landfill, validating the model with tracer gas data in the field.
- Use this new model to simulate methane emissions and estimate measurement error for prior daytime field measurement campaigns at this site.
- Use the model to estimate emissions at night and during periods when field measurements were not performed.
- Assess the representativeness of methane emission data from limited measurements for calculating year-round methane emissions for any given landfill.
Mineralogy Optimization for Metal and Chloride Immobilization in Co-Disposed Flue Gas Desulfurization Brines and Bituminous Coal Fly Ash
Investigator: Ching-Hua Huang, Georgia Institute of Technology
Award Amount: $195,917
This project aims to optimize the immobilization of selenium and chloride in the co-disposed concentrated FGD brines and bituminous CFA by solidification/stabilization. Immobilizing these compounds will rely on chemical processes and the potential effects of temperature, pH, calcium oxide content, temperature and reactive aluminum oxide will be evaluated. The long- and short-term stability of the immobilized compounds will be tested using leaching tests under various conditions.
Developing Strategies to Recover and Treat Nutrients in the Landfill Leachate
Investigator: Ramesh Goel, University of Utah and Debra Reinhart, University of Central Florida
Award Amount: $141,704
The objectives of this project are to:
- Determine the optimal conditions to recover nitrogen and phosphorus from the anaerobic digester centrate and landfill leachates using chemical precipitation in the form of struvite.
- Characterize the recovered struvite to determine its fertilizer quality and check for the presence of other metals and hormones.
- Initiate and operate a two-stage treatment process to remove carbon from the residual liquid waste obtained after nutrient recovery.
- Conduct life cycle analysis of the proposed nutrient recovery and treatment scheme.