Using ammonium-tolerant yeast isolates: Candida halophila and Rhodotorula glutinis to treat high strength fermentative wastewater

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

	Using ammonium-tolerant yeast isolates: Candida halophila and Rhodotorula glutinis to treat high strength fermentative wastewater
	Yang, Q; Yang, M; Hei, L; Zheng, S
刊名	ENVIRONMENTAL TECHNOLOGY
	2003
卷号	24 期号:3 页码:383-390
关键词	yeast monosodium glutamate (MSG) wastewater treatment ammonium
英文摘要	Two ammonium-tolerant yeast strains were isolated from sludge samples contaminated with monosodium glutamate manufacturing wastewater and were identified as Candida haplophila and Rhodotorula glutinis. The tolerance of the two yeast isolates-to ammonia and their chemical oxygen demand (COD) removal performances were evaluated under batch and bench-scale conditions. The mixture of the two isolates was found to grow well in an artificial medium containing 25% (NH4)(2)SO4 and could effectively remove COD from monosodium glutamate wastewater even when the concentrations of NH4+-N and free NH3-N reached as high as 18977 and 879 mg 1(-1) respectively. A fixed-bed yeast reactor, which was initially inoculated with the yeast mixture, permitted a constant COD removal rate of over 80% during a period of near 2-month continuous running even when the influent COD was increased from 8000 to 25000 mg 1(-1). The effluent was accompanied with suspended solids (SS) of over 4500 mg 1(-1), which was mainly composed of yeast cells and could be considered as a source of animal forage additive. The residual COD of effluents from the yeast reactor could be further reduced to under 500 mg 1(-1) by a combination process of activated sludge treatment and coagulation technologies.
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000182034100013
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23783]
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	Yang, Q,Yang, M,Hei, L,et al. Using ammonium-tolerant yeast isolates: Candida halophila and Rhodotorula glutinis to treat high strength fermentative wastewater[J]. ENVIRONMENTAL TECHNOLOGY,2003,24(3):383-390.
APA	Yang, Q,Yang, M,Hei, L,&Zheng, S.(2003).Using ammonium-tolerant yeast isolates: Candida halophila and Rhodotorula glutinis to treat high strength fermentative wastewater.ENVIRONMENTAL TECHNOLOGY,24(3),383-390.
MLA	Yang, Q,et al."Using ammonium-tolerant yeast isolates: Candida halophila and Rhodotorula glutinis to treat high strength fermentative wastewater".ENVIRONMENTAL TECHNOLOGY 24.3(2003):383-390.