- Landfill Environmental Impact Studies
- Municipal Solid Waste Management
- Groundwater flow and contamination studies
- Environmental remediation with nanomaterials
- Electrokinetic Soil Remediation Techniques
- Recycling and Waste Management Techniques
- Soil and Unsaturated Flow
- Wastewater Treatment and Nitrogen Removal
- Recycled Aggregate Concrete Performance
- Underground infrastructure and sustainability
- Geophysical Methods and Applications
- Toxic Organic Pollutants Impact
- Atmospheric chemistry and aerosols
- Per- and polyfluoroalkyl substances research
- Advanced oxidation water treatment
- Geophysical and Geoelectrical Methods
- Anaerobic Digestion and Biogas Production
- Odor and Emission Control Technologies
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Soil Stabilization
- Constructed Wetlands for Wastewater Treatment
- Water Treatment and Disinfection
- Grouting, Rheology, and Soil Mechanics
- Metal Extraction and Bioleaching
- Water Resources and Management
University of Central Florida
2016-2025
Florida State University
2025
University of Nebraska–Lincoln
2025
ORCID
2023
Tufts University
2007
Florida College
1999-2007
University of Florida
2005-2006
University of Pittsburgh
2003
Georgia Institute of Technology
1990
University of Alberta
1978
Widespread disposal of landfill leachate to municipal sewer in the US calls for improved understanding relative organic-chemical contributions WWTP waste stream and associated surface-water discharge receptors environment.
The bioreactor landfill provides control and process optimisation, primarily through the addition of leachate or other liquid amendments. Sufficient experience now exists to define recommended design operating practices. However, technical challenges research needs remain related sustainability, addition, hydrodynamics, quality, air, cost analysis.
Landfill bioreactor technology offers important advantages in the management and treatment of municipal solid waste, including accelerated waste stabilization rates, enhanced gas production, facilitated leachate management, volume reduction minimized long-term liability. These have been documented laboratory-, pilot- full-scale investigations. Although challenges remain implementing technology, landfills are designed operated with increasing frequency. © 1996 ISWA
Although bioreactor landfills have many advantages associated with them, challenges remain, including the persistence of ammonia-nitrogen in leachate. It has been suggested that is one most significant long-term pollution problem and likely a parameter will determine when landfill postclosure monitoring may end. The fate nitrogen not well understood. As more transition operation to bioreactors, attention must be paid how operating as affect nitrogen. Processes such sorption, volatilization,...
This research sought to understand the behavior of engineered nanoparticles in landfill leachate by examining interactions between and components. The primary foci this paper are effects ZnO, TiO2, Ag on biological processes form Zn, Ti, following addition nanoparticles. Insight into was gained from observed increase aqueous concentrations over background for some tested leachates attributed components interacting with nanoparticle coatings resulting dispersion, dissolution/dissociation,...
The ultimate methane generation potential (L0) of municipal solid waste (MSW) has been used in first-order decay models for the estimation landfill gas (LFG) production previous 30 years. L0 is an inherent property component, often a function lignocellulosic concentrations within. Methane yields individual components can be measured controlled laboratory setting; however, extent to which each portion degrades uncertain. difficult estimate due spatial and temporal variations among sites...
Populated coastal areas worldwide have a legacy of numerous solid waste disposal sites. At the same time, mean sea level is rising and likely to accelerate, increasing flooding and/or erosion. There therefore concern that landfill sites located at near coast pose growing risk environment from potential release liquid materials. This paper aims assess our present understanding this issue as well research practice needs by synthesizing available evidence across set developed country cases,...
Leachate recirculation has been shown in lysimeter, pilot-scale and full-scale investigations to reduce the time required for waste stabilization, improve leachate quality, provide opportunity volume reduction, enhance rate of gas production. New generation landfills are implementing as a management tool with increasing frequency. techniques used at include pre-wetting waste, spraying, surface ponds, vertical injection wells horizontal introduction systems. From observations operating...
This paper reports the in situ field saturated hydraulic conductivity of municipal solid waste at a landfill Florida. The (Ks) was estimated 23 locations using borehole permeameter test, method commonly used for determination Ks unsaturated soil. landfilled found to range from 5.4×10−6 6.1×10−5cm∕s. be on lower end reported by previous studies. decreased with depth, likely result greater overburden pressures associated deep landfill. Permeability values (kw) calculated based were compared...