Assessment of solid waste management with main focus on techno commercial feasibilty of Anaerobic digestion based technologies: a brief study on BIO-CNG, biogas based clean fuel and comparison between PSA and water scrubbing
Student name: Ms Priyanka Gupta
Guide: Dr Chubamenla Jamir
Year of completion: 2015
Host Organisation: Green Brick Eco Solutions, New Delhi
Supervisor (Host Organisation): Mr Sandeep Garg
Abstract: The problem of Solid waste management is huge in the developing countries like India as there is a lack of education and awareness (Guerrero 2013). Specially in the case of Delhi, all the allotted landfill sites have reached their alarming levelsand will cause a serious destruction if waste dumping is continued in the way as it is today (El-Fadel 1997). Various technologies like incineration, pyrolysis, gasification, composting, anaerobic digestion etc. are being used to solve this problem of waste management to some extent (Asnani 2006). Except anaerobic digestion and composting, all other above mentioned technologies are good for foreign application, not meant for treating Indian waste as the calorific value of this waste is very less(due to more organic content) in comparison to waste generated in the developed countries like U.K, United States etc. Bio gas plants are traditionally used for treatment of the organic waste like cattle dung ,vegetable waste, horticulture waste etc. where waste is anaerobically digested to produce biogas and bio manure. In the present work, above mentioned technologies are reviewed with centered focus on anaerobic digestion in Nisargruna biogas plants. Waste auditing at the organizations like DMRC,NTPC, Army school (Dhaulakuan) has been done in order to look at their scenario of solid waste management. Detailed study on the usage of Biogas to run vehicles (by anaerobic digestion of kitchen waste to produce Bio-CNG)has been done where construction of biogas plants ,production of biogas and its enrichment by CO2 and H2S scrubbing to concentrate the quantity of methaneand its bottling at high pressure , which would be used to run vehicles. Feasibility of anaerobic digestion over other technologies (mentioned above) has been done. There are several private players in the market who are playing a crucial role in offering solutions for solid waste management . One such solution is “BioboxXTM†which uses anaerobic digestion to generate Biogas as well as soil enricher slurry, which is been studied in detail in the present work. Several hotels, rag pickers, private players, municipal vehicles of delhi are surveyed for the allocation of the biogas plants in Delhi.
Keywords: Solid Waste Management, Anaerobic Digestion, Biogas, Bio-CNG, Cost Benefit Analysis.
