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[Treatment of drilling wastewater from oil field by using yeast]
Yanming Wang1, Min Yang, Shaokui Zheng
1State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Huan Jing Ke Xue= Huanjing Kexue
|January 22, 2003
Abstract:
Two strains of yeast, namely Wickerhamiella domercqii and Candida boidinii, were acquired through screening from soil samples contaminated by drilling wastewater. A TOC removal of 40.5% was acquired when the mixture of the two yeast strains was used for drilling wastewater treatment, a little higher than that with activated sludge acclimated with wastewater (35.2%). Some organic compounds in the fraction of molecular weight above 60,000 were found to be biodegradable.