Greenhouse Gases Emission from Energy Production in Conventional Biogas Plants in India

摘要

This article deals with the evaluation of the atmospheric CH_4 and CO_2 emission from the widely accepted conventional biogas plants operating in India. CH_4 andf CO_2 are the two major constituents of biogas and also the two important greenhouse gases causing the present global warming. Average CH_4 and CO_2 emission per plant from the floating gasholder model biogas plants ranged between 73 ± 8.92 and 742 ± 81.53 g d~(-1) and 159 ±17.31 and 1476 ± 152.63 g d~(-1), respectively. Emissions from the fixed dome biogas plants ranged between 93 ± 20.63 and 288 ± 46.53 g d~(-1) CH_4 and 196 ± 40.90 and 598 ± 93.70 g d~(-1) CO_2. The current contribution of greenhouse gases from the installed biogas plants in India toward the annual atmospheric CH_4 and CO_2 budget is estimated to be approximately 0.143 and 0.306 Tg, respectively.