Capstone Project

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Group 2012-3B Status completed
Title Solar Soil Sterilizer Design and Implementation (for Small-Scale Biodigestion Waste-to-Energy System)
Supervisor Dr. Pragasen Pillay, Nathan Curry
Description A small-scale (1000L) anaerobic digestion system for processing food waste is currently being built with funding from Concordia's Sustainable Action Fund (SAF) and will be located in the greenhouse on top of the Hall Building. One of the major challenges when dealing with small-scale biodigestion involves dealing with the digestate or digested slurry that exits the tank every day. In order to use this digestate as a fertilizer or compost in the greenhouse, it must be sterilized or heated for one hour at 75C. This project will include designing and building a solar soil sterilizer system that can sterilize not only the digestate from the anaerobic digestion system but also the compost that comes from the Loyola campus. Currently this digestate and compost cannot be used directly in the greenhouse as there is the possibility of insect eggs and various bacteria or pathogens remaining. This system will need to be robust, easy to use, and be able to maintain a temperature of 75C for at least one hour.
Requirement Thermodynamics, Renewable Energy
Tools Familiarity with thermal modeling, wood, insulation, black plastic, Styrofoam blocks, temperature gauge, plexiglass.
Number of Students 4
Students Marc Batty, Martin Harvey-Poncelet, Georges Ronald Dubuisson, Joseph Jerome
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