Chandra Shubham, Ganguly Rajiv
Department of Civil Engineering, Harcourt Butler Technical University, Kanpur 208002, Uttar Pradesh, India.
Heliyon. 2023 Apr 5;9(4):e15187. doi: 10.1016/j.heliyon.2023.e15187. eCollection 2023 Apr.
The world due to increased urbanization and globalization is facing major environmental challenges. Anthropogenic emissions of Greenhouse gases (GHG) like carbon dioxide and methane are on the rise and unsustainable which needs to be regulated. Open dumping of Municipal Solid Waste (MSW) contributes to generation of greenhouse gases like carbon dioxide and methane. This is because large fractions of the waste open dumped are organic in nature which undergoes anaerobic decomposition leading to generation of GHGs. In particular, methane has a high potential for energy generation and if utilized could be highly beneficial. The present study assesses the generation of landfill gases, primarily methane generation potential from MSW generated in Kanpur city using LandGEM 3.02 version model developed by USEPA for the period 2015-2030. It was observed from the study that the cumulative LFGs generation, methane emission and energy recovery potential estimated as 233.44 × 10 m, 116 × 10 m and 858.14 × 10 MJ respectively. Uncertainty analysis carried out showed that variation in methane emissions maybe attributed to input parameters of k and L of the LandGEM model. The study shows that there exists high potential to control the greenhouse gas emissions by utilizing the methane generated for energy production.
由于城市化和全球化的加剧，世界正面临重大环境挑战。二氧化碳和甲烷等温室气体的人为排放量不断上升且不可持续，需要加以管控。城市固体废弃物的露天倾倒会导致二氧化碳和甲烷等温室气体的产生。这是因为露天倾倒的废弃物中很大一部分是有机物质，会进行厌氧分解，从而导致温室气体的产生。特别是，甲烷具有很高的能源生产潜力，如果加以利用会非常有益。本研究使用美国环境保护局开发的LandGEM 3.02版本模型，评估了坎普尔市2015 - 2030年期间产生的城市固体废弃物的填埋气体产生情况，主要是甲烷产生潜力。研究发现，估计的累计填埋气体产生量、甲烷排放量和能源回收潜力分别为233.44×10立方米、116×10立方米和858.14×10兆焦耳。进行的不确定性分析表明，甲烷排放量的变化可能归因于LandGEM模型的k和L输入参数。该研究表明，通过利用产生的甲烷进行能源生产来控制温室气体排放具有很大潜力。
