Effects of aeration strategy on the evolution of dissolved organic matter (DOM) and microbial community structure during sludge bio-drying

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 aeration strategy on the evolution of dissolved organic matter (DOM) and microbial community structure during sludge bio-drying
	Zhang, Junya; Cai, Xing; Qi, Lu; Shao, Chunyan; Lin, Yang; Zhang, Jin; Zhang, Yuanli; Shen, Peihong; Wei, Yuansong
刊名	APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
	2015-08
卷号	99 期号:17 页码:7321-7331
关键词	Microbial community Sludge bio-drying Dissolved organic matter
英文摘要	Sludge bio-drying in which sludge is dried by means of the heat generated by the aerobic degradation of its own organic substances has been widely used for sludge treatment. A better understanding of the evolution of dissolved organic matter (DOM) and its degradation drivers during sludge bio-drying could facilitate its control. Aeration is one of the key factors that affect sludge bio-drying performance. In this study, two aeration strategies (pile I-the optimized and pile II-the current) were established to investigate their impacts on the evolution of DOM and the microbial community in a full-scale sludge bio-drying plant. A higher pile temperature in pile I caused pile I to enter the DOM and microbiology stable stage approximately2 days earlier than pile II. The degradation of easily degradable components in the DOM primarily occurred in the thermophilic phase; after that degradation, the DOM components changed a little. Along with the evolution of the DOM, its main degradation driver, the microbial community, changed considerably. Phyla Firmicutes and Proteobacteria were dominant in the thermophilic stage, and genus Ureibacillus, which was the primary thermophilic bacteria, was closely associated with the degradation of the DOM. In the mesophilic stage, the microbial community changed significantly at first and subsequently stabilized, and the genus Parapedobacter, which belongs to Bacteriodetes, became dominant. This study elucidates the interplay between the DOM and microbial community during sludge bio-drying.
研究领域[WOS]	Biotechnology & Applied Microbiology
WOS记录号	WOS:000359739600030
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32761]
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	Zhang, Junya,Cai, Xing,Qi, Lu,et al. Effects of aeration strategy on the evolution of dissolved organic matter (DOM) and microbial community structure during sludge bio-drying[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2015,99(17):7321-7331.
APA	Zhang, Junya.,Cai, Xing.,Qi, Lu.,Shao, Chunyan.,Lin, Yang.,...&Wei, Yuansong.(2015).Effects of aeration strategy on the evolution of dissolved organic matter (DOM) and microbial community structure during sludge bio-drying.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,99(17),7321-7331.
MLA	Zhang, Junya,et al."Effects of aeration strategy on the evolution of dissolved organic matter (DOM) and microbial community structure during sludge bio-drying".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 99.17(2015):7321-7331.