Thesis Archive
The Determination of the Most Efficient Distillery Wastewater Treatment System using Multi-Criteria Decision Analysis
Maravilla Jr., Allan D.
Abstract:
The volume of Distillery wastewater in the Philippines is expected to shoot up due to increase of bioethanol percentage in gasolines to 30% because of RA 9367. In order for the distillery slops produced to meet the DAO 2016-08 standard parameters of the DENR, a decision problem regarding the selection of appropriate tertiary treatments after biological methods for distillery wastewater in the Philippines was addressed with the use of Fuzzy AHP. A problem structure was composed with the following main criteria: economical, environmental, social and technical. Lab-scale distillery wastewater post-treatment technologies were used as alternatives in the decision problem. The technologies considered in this study are the following: Combined Ultrafiltration and Reverse Osmosis, Forward Osmosis, Combined Chemical Coagulation and Photo-Fenton, Chemical Coagulation with Mixed Moringa Seed Extract, and Granular Activated Carbon Promoted Ozonation. Quantitative data for the environmental and economic sub-criteria were collected from journal articles. Surveys were conducted on expert decision makers from the government, academe and industry for the qualitative data and the calibration of the Fuzzy AHP scale. Lingo software was used to aggregate the pairwise judgments and Microsoft excel was used to get the final rankings of the alternatives. The Chemical Coagulation with Mixed Moringa Seed Extract treatment was found to the most optimal alternative technology basing from the data gathered in this research. Basing from the results of the study, it is suggested to just use lagoons as tertiary treatments since the costs of the presented technologies would not be beneficial for distillery companies in the Philippines.
Adviser:
Aviso, Kathleen B.
Beltran, Arnel B.