Multiobjective optimization and statistical modeling for management of wastewater treatment processes
Sponsor: District of Columbia Water and Sewer Authority
Research Team: Steven A. Gabriel, Prawat Sahakij, Chris Peot, Mark Ramirez
Abstract
Dr. Steven Gabriel and his graduate students (Prawat Sahakij, Ph.D. Candidate, CEE; Sirapong Vilalai, Ph.D. Candidate, CEE) have developed both multiobjective optimization and statistical models to understand and analyze the tradeoffs of biosolids odors versus costs from a processing and distributional perspective. This work has been supported by the District of Columbia Water and Sewer Authority in a series of projects.
Selected Recent Papers
- S.A. Gabriel, P. Sahakij, M. Ramirez, C. Peot, 2007. "A Multiobjective Optimization Model for Processing and Distributing Biosolids to Reuse Fields," Journal of the Operational Research Society, 58, 850-864.
- S. A. Gabriel, S.Vilalai, S.C. Arispe, H. Kim, L.L. McConnell, A. Torrents, C. Peot, M. Ramirez. 2005 "Prediction of Dimethyl Disulfide Levels from Biosolids Using Statistical Modeling," J. Environ. Sci. Health, Part A, 40(11), 2009-2025.
- S. A. Gabriel, S. Vilalai, C. Peot, M. Ramirez, 2006" Statistical Modeling to Forecast Odor Levels of Biosolids Applied to Reuse Sites," ASCE Journal of Environmental Engineering, 132(5), 479-488.
- S. A. Gabriel , R. García-Bertrand, P. Sahakij , A. Conejo, 2006. "A Practical Approach in Approximating Bilinear Functions in Mathematical Programming Problems by Using Schur's Decomposition and SOS Type 2 Variables," Journal of the Operational Research Society , 57, 995-1004. (one application to wastewater managment)
- P. Sahakij, S.A. Gabriel, M. Ramirez, C. Peot, "Multi-objective Optimization Models for Distributing Biosolids to Reuse Fields: A Case Study for the Blue Plains Wastewater Treatment Plant," December 2007, in review.
- S.A. Gabriel, S. Vilalai, P. Sahakij, M. Ramirez, C. Peot, "Models for Improving Management of Biosolids Odors at Wastewater Treatment Plants Taking Into Account Uncertain Factors," June 2008, in review.
Selected Recent Presentations
- Multiobjective Optimization Modeling of Biosolids Odors and Costs at a Wastewater Treatment Plant (invited talk with P. Sahakij, C. Peot, M. Ramirez), INFORMS Conference, San Francisco, California, November 2005.
- Statistical Modeling to Forecast Odor Levels of Biosolids Applied to Reuse Sites (invited talk with S. Vilalai, C. Peot, M. Ramirez), INFORMS Conference, San Francisco, California, November 2005.
- Prediction of Dimethyl Disulfide Levels from Biosolids Using Statistical Modeling (invited talk with H. Kim, S. Vilalai, S. Arispe , L. L. McConnell , A. Torrents, C. Peot, M. Ramirez), INFORMS Conference, San Francisco, California, November 2005.
