Emerald Valley Public school, situated in Salem, has effectively managed its daily food waste and harnessed renewable energy through the installation of a biogas plant, with the support of waste management solutions provider, Green Connect.
Since its implementation ten years ago, the biogas plant has revolutionized the school’s approach to waste management and energy consumption. A study conducted by Green Connect revealed that the school generates approximately 75kg of food waste daily. In response to this, Green Connect recommended the installation of a biogas plant capable of converting the organic waste into a sustainable energy source.
With a design featuring a permanent civil model digester and a portable Fibre Reinforced Plastic (FRP) gas holder, the biogas plant operates on a floating drum gas holder model. The drum rises as the gas is generated and descends as it is consumed, ensuring a consistent and reliable energy supply.
he biogas plant has proven to be a resounding success, producing an estimated 10 cubic meters of biogas per day. This renewable energy source is equivalent to 5kg of Liquefied Petroleum Gas (LPG), which has replaced conventional fossil fuels in the school kitchen. The switch to biogas not only reduces the institution’s carbon footprint but also significantly lowers energy costs, promoting a more sustainable and cost-effective operation.
In addition to biogas production, the plant also yields approximately 150 liters of nutrient-rich manure on a daily basis. This organic fertilizer is put to good use in Emerald Valley School’s gardens, enhancing soil fertility and reducing the reliance on chemical-based alternatives.
Beyond the immediate environmental benefits, Emerald Valley School recognizes the educational value of the biogas plant. Students actively participate in its maintenance and are provided with hands-on learning opportunities. Lessons on renewable energy, waste management, and environmental stewardship are incorporated into the curriculum, cultivating a sense of responsibility towards the planet and inspiring innovative thinking among the students.
As Emerald Valley School marks ten years of successful biogas utilization, it stands as a shining example of sustainable practices within the educational sector. By effectively managing food waste, harnessing renewable energy, and educating the next generation, the school is contributing to a greener and more environmentally conscious society.
