Bioaugmentation with a pyridine-degrading bacterium in a membrane   bioreactor treating pharmaceutical wastewater

doi:10.1016/S1001-0742(12)60278-2

CORC > 北京大学 > 环境科学与工程学院

	Bioaugmentation with a pyridine-degrading bacterium in a membrane bioreactor treating pharmaceutical wastewater
	Wen, Donghui ; Zhang, Jing ; Xiong, Ruilin ; Liu, Rui ; Chen, Lujun
刊名	journal of environmental sciences china
	2013
关键词	bioaugmentation pyridine membrane bioreactor denaturing gradient gel electrophoresis pharmaceutical wastewater IMMOBILIZED PIMELOBACTER SP MICROBIAL-DEGRADATION ACTIVATED-SLUDGE PSEUDOMONAS SP BIODEGRADATION MICROORGANISMS METABOLISM REACTOR RING TOOL
DOI	10.1016/S1001-0742(12)60278-2
英文摘要	The bacterial strain Paracoccus denitrificans W12, which could utilize pyridine as its sole source of carbon and nitrogen, was added into a membrane bioreactor (MBR) to enhance the treatment of a pharmaceutical wastewater. The treatment efficiencies investigated showed that the removal of chemical oxygen demand, total nitrogen, and total phosphorus were similar between bioaugmented and non-bioaugmented MBRs, however, significant removal of pyridine was obtained in the bioaugmented reactor. When the hydraulic retention time was 60 hr and the influent concentration of pyridine was 250-500 mg/L, the mean effluent concentration of pyridine without adding W12 was 57.2 mg/L, while the pyridine was degraded to an average of 10.2 mg/L with addition of W12. The bacterial community structure of activated sludge during the bioaugmented treatment was analyzed using polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE). The results showed that the W12 inoculum reversed the decline of microbial community diversity, however, the similarity between bacterial community structure of the original sludge and that of the sludge after bioaugmentation decreased steadily during the wastewater treatment. Sequencing of the DNA recovered from DGGE gel indicated that Flavobacteriaceae sp., Sphingobium sp., Comamonas sp., and Hyphomicrobium sp. were the dominant organisms in time sequence in the bacterial community in the bioaugmented MBR. This implied that the bioaugmentation was affected by the adjustment of whole bacterial community structure in the inhospitable environment, rather than being due solely to the degradation performance of the bacterium added.; Environmental Sciences; SCI(E); PubMed; 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 5; ARTICLE; 11; 2265-2271; 25
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158771]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Wen, Donghui,Zhang, Jing,Xiong, Ruilin,et al. Bioaugmentation with a pyridine-degrading bacterium in a membrane bioreactor treating pharmaceutical wastewater[J]. journal of environmental sciences china,2013.
APA	Wen, Donghui,Zhang, Jing,Xiong, Ruilin,Liu, Rui,&Chen, Lujun.(2013).Bioaugmentation with a pyridine-degrading bacterium in a membrane bioreactor treating pharmaceutical wastewater.journal of environmental sciences china.
MLA	Wen, Donghui,et al."Bioaugmentation with a pyridine-degrading bacterium in a membrane bioreactor treating pharmaceutical wastewater".journal of environmental sciences china (2013).