Effects of moisture content on the performance of a two-stage thermophilic biofilter and choice of irrigation rate

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Effects of moisture content on the performance of a two-stage thermophilic biofilter and choice of irrigation rate
	Luo, Hui; Deng, Mingjia; Chen, Wenhe; Xue, Song; Huang, Wensheng; Han, Yunping; Li, Lin
刊名	PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
	2018
卷号	113 页码:164-173
关键词	Off-gas treatment Thermophilic biofilter Irrigation rate Moisture content Microbial population DGGE analysis
ISSN号	0957-5820
文献子类	Article
英文摘要	The stabilization, innocuity, and reutilization of sludge can be obtained via the co-combustion of sewage sludge in cement producing kilns. Off-gases containing odours and volatile organic compounds (VOCs) are generated during the process of sewage sludge drying. A two-stage thermophilic biofilter was constructed in a cement plant to remove SO2, NH3, and total VOCs (TVOCs) from the plant's exhaust. The average concentrations of TVOCs, NH3, and SO2 in the inlet stream were 164.33, 38.46, and 51.12 mg/m(3), and in the outlet stream were 44.54, 9.18, and 3.91 mg/m(3), respectively. During biofilter operation, nutrient solution was circularly pumped onto the packing material to ensure the packing material remained moist. The moisture content of the packing material increased from 40 to 85% as the irrigation rate varied from 0.05 to 0.42 m(3)/h. The removal efficiencies of NH3 and TVOCs changed accordingly. When the irrigation rate was 0.3 m(3)/h, removal efficiencies were 88.71% for NH3 and 81.38% for TVOCs. More than 90% SO2 removal occurred through-out the operation. The polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) method was used to assay the microbial population. Both microbial counts and diversity increased when the irrigation rate increased. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41132]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Luo, Hui,Deng, Mingjia,Chen, Wenhe,et al. Effects of moisture content on the performance of a two-stage thermophilic biofilter and choice of irrigation rate[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2018,113:164-173.
APA	Luo, Hui.,Deng, Mingjia.,Chen, Wenhe.,Xue, Song.,Huang, Wensheng.,...&Li, Lin.(2018).Effects of moisture content on the performance of a two-stage thermophilic biofilter and choice of irrigation rate.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,113,164-173.
MLA	Luo, Hui,et al."Effects of moisture content on the performance of a two-stage thermophilic biofilter and choice of irrigation rate".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 113(2018):164-173.