生物滤池
甲硫醇
硫化氢
化学
渲染(计算机图形)
环境化学
污染物
硫黄
二甲基硫醚
气味
制浆造纸工业
废物管理
环境科学
环境工程
有机化学
计算机图形学(图像)
计算机科学
工程类
作者
Benoît Anet,M. Lemasle,Catherine Couriol,Thomas Lendormi,Abdeltif Amrane,Pierre Le Cloirec,Gilles Cogny,Romain Fillières
标识
DOI:10.1016/j.jenvman.2013.06.028
摘要
This research focuses on the identification and quantification of odorous components in rendering plant emissions by GC/MS and other analytical methods, as well as the description of phenomena occurring in biofilter in order to improve the removal efficiency of industrial biofilters. Among the 36 compounds quantified in the process air stream, methanethiol, isopentanal and hydrogen sulfide, presented the major odorous contributions according to their high concentrations, generally higher than 10 mg m−3, and their low odorous detection thresholds. The elimination of such component mixtures by biofiltration (Peat packing material, EBRT: 113 s) was investigated and revealed that more than 83% of hydrogen sulfide and isopentanal were removed by biofilter. Nevertheless, the incomplete degradation of such easily degradable pollutants suggested inappropriate conditions as lack of nutrients and acidic pH. These inadequate conditions could explain the lack of performance, especially observed on methanethiol (53% of RE) and the production of oxygenated and sulfur by-products by the biofilter itself.
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