Influence of temperature on performance of anaerobic digestion of municipal solid waste |
| |
Authors: | ZHANG Ji-shi SUN Ke-wei WU Man-chang and ZHANG Lei |
| |
Institution: | 1. National Engineering Research Center of Solid Waste Resource Recovery, Kunming 650033, China;Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China 2. National Engineering Research Center of Solid Waste Resource Recovery, Kunming 650033, China 3. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China |
| |
Abstract: | The influence of temperature on the performance of anaerobic reactors for treating the organic fraction of municipal solid waste (OFMSW) was studied. Batch digestion of OFMSW was carried out for 32 d at different temperature (25 degrees C, 35 degrees C, 45 degrees C and 55 degrees C) conditions for total solid concentrations (TS) 17% with the ratio of total organic carbon to nitrogen (C/N) being, 25:1 respectively, while keeping other parameters constant such as inoculum, start-up pH, reactor volume (2 L) and so on. Temperature can influence the methanogenic bacteria activity, accordingly inhibiting the OFMSW biodegradation and stabilization efficiency. Anaerobic reactors excelled at TS reduction, total volatile solid reduction, chemical oxygen demand reduction, increasing cumulative biogas production, whose rate was at temperature (35 degrees C and 55 degrees C) conditions. Methane concentration in the biogas was above 65% in four reactors. In addition, the fluctuation of temperatures resulted in the biogas production variation. The data obtained indicated that temperature had a significant influence on anaerobic process. |
| |
Keywords: | municipal solid waste anaerobic digestion batch processing temperature |
本文献已被 CNKI 维普 万方数据 PubMed 等数据库收录! |
| 点击此处可从《环境科学学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《环境科学学报(英文版)》下载免费的PDF全文 |
|