A NOVEL LANDFILL CAPACITY ESTIMATION MODEL FOR DEHRADUN CITYNEELU JYOTHI AHUJA, KANCHAN DEOLI BAHUKHANDI, RITESH SAINI AND APARNA NARAYANANAbstract In the present work, the study and analysis of solid waste generated in Dehradun city of Uttarakhandhas been done, which revealed the suitability of a bioreactor landfill over a traditional one. Landfill capacity plays a vital role in design of a landfill. The present work encompasses landfill capacity estimation, where solid waste prediction given as input, the required volume of land for engineering of a landfill, is generated as result. Landfill capacity estimation has been done using standard mathematical model of capacity estimation with projected solid waste quantity provided as input. As this model of capacity estimation does not take internal landfill conditions into consideration, a novel approach was designed and the model was modified, particularly for a bioreactor landfill and has been proposed in this paper. This modified model, after validation against the existing model for the conditions existing in the traditional landfill, has been utilized, to estimate the capacity of a planned bioreactor landfill and proposed for the city of Dehradun. This research work provides the municipality with a model that would help in the planning of a bioreactor landfill, for the city.Further, the landfill gas(LFG) generated due to anaerobic decomposition of organic waste in the landfill is an excellent source of renewable energy, qualifying to fulfil a significant fragment of energy demand of the city, provided systematically recovered and utilized.
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