A pilot field-scale study on biotrickling filter treatment of NH3-containing odorous gases from organic waste composting plants |
| |
| Authors: | Nian-tao Xue Qun-hui Wang Chuan-fu Wu Xiao-hong Sun and Wei-min Xie |
| |
| Institution: | (1) ENAC-Laboratory for Environmental Biotechnology, Swiss Federal Institute of Technology Lausanne (EPFL), Bâtiment CH-B Ecublens, 1015 Lausanne, Switzerland |
| |
| Abstract: | The use of a biotrickling filter was investigated for a pilot field-scale elimination of NH3 gas and other odorous gases from a composting plant in Tongzhou District, Beijing. The inlet gas flow rate was 3500 m3/h and NH3 concentration fluctuated between 2.76–27.84 mg/m3, while the average outlet concentration was 1.06 mg/m3 with an average of 94.9% removal. Critical volumetric loading (removal efficiency=100%) was 11.22 g-N/(m3·h). The odor concentration removal was 86.7%. NH3 removal efficiency decreased as the free ammonia (FA) in the trickling liquid increased. The pressure drop was maintained
at about 50 Pa/m and was never more than 55 Pa/m. During the experiment, there was neither backflushing required nor any indication
of clogging. Overall, the biotrickling filter was highly efficient and cost-effective for the simultaneous biodegradation
of NH3 and other odorous gases from composting, suggesting the possibility of treating odorous gases at the industrial level. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
|
