A Geographic Information Systems-Based Decision Support System for Solid Waste Recovery and Utilization in Tuguegarao City, Cagayan, Philippines

Junel B Guzman, Eduardo P Paningbatan, Jr., Antonio J Alcantara
Vol 13 No 1 (2010), pp. 52-66




A Decision Support System (DSS) was developed to analyze and simulate the solid waste flow of Tuguegarao City using Geographic Information Systems and Stella modeling software. It was parameterized using data and information on population, per capita waste generation, average annual growth rates of population and solid waste composition in order to predict the volume of waste generated, compostable, recyclable, collected, uncollected waste and compost for every barangay under three waste management system scenarios. Result of simulation was transferred to Geographic Information System (GIS) environment for mapping to show the spatial distribution of waste. 

A decision to compost market waste (Scenario A) could result to waste conversion from 92 m3 wk-1 to 237 m3 wk-1 by year 2015 and by recycling institutional waste (Scenario B) could result to waste recovery from 171 m3 wk-1 to 225 m3 wk-1 by year 2015. Processing all generated compostable and recyclable waste (Scenario C) could recover 92 m3 wk-1 to 1,002 m3 wk-1 of compostables and 171 m3 wk-1 to 617 m3 wk-1 of recyclables by year 2015. 

To maximize the recovery and utilization of solid waste generated and to address the environmentally unacceptable burning and disposal of voluminous waste, solid waste management option for the city, Scenario C is recommended, provided that generators in all sectors will cooperate and adequate composting facilities will be made available.


Keywords: Decision Support System, Geographic Information Systems, Compostable Waste Recyclable Waste, Waste Composition

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