Centre for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar.
Department of Chemical Engineering, Aligarh Muslim University, Aligarh, 202002, India.
J Environ Manage. 2021 May 15;286:112214. doi: 10.1016/j.jenvman.2021.112214. Epub 2021 Feb 24.
Methane gas is a very effective greenhouse gas and the second-largest contributor to global warming. Biofiltration is an effective technology that uses microorganisms to degrade the pollutant by oxidizing it. In this work, the performance of a biofilter with supporting filter media, consisting of composted sawdust, is evaluated at three different sampling ports. Furthermore, a transient model is developed to predict methane concentration at various heights and times. The developed model is validated with the experimental data and shows good agreement with the experimental data. The highest removal efficiency and elimination capacity was found to be 72% and 0.108 g m h respectively. The effect of parameters such as specific surface area, the reaction rate constant, biofilm thickness and airflow rate were studied on the outlet methane concentration. Under similar conditions, the simulations showed that the removal efficiency of 95% might be achieved for the height of 2 m.
甲烷气体是一种非常有效的温室气体，也是导致全球变暖的第二大因素。生物过滤是一种有效的技术，它利用微生物将污染物氧化，从而达到降解的目的。在这项工作中，评估了由堆肥木屑组成的支撑过滤介质的生物滤池在三个不同采样点的性能。此外，还开发了一个瞬态模型来预测不同高度和时间的甲烷浓度。所开发的模型通过实验数据进行了验证，与实验数据吻合较好。最高去除效率和消除容量分别为 72%和 0.108 g m h。研究了比表面积、反应速率常数、生物膜厚度和气流速率等参数对出口甲烷浓度的影响。在相似的条件下，模拟结果表明，对于 2 米的高度，去除效率可能达到 95%。
