Study on the treatment of highly concentrated oil-bearing by yeasts

Lü Wenzhou; Liu Ying; Huang Yizhen; Y ang Min

doi:10.11894/1005-829x.2004.24(1).16

Industrial Water Treatment >

2004 , Vol. 24 >Issue 1: 16 - 20

DOI: https://doi.org/10.11894/1005-829x.2004.24(1).16

Study on the treatment of highly concentrated oil-bearing by yeasts

Lü Wenzhou ,
Liu Ying ,
Huang Yizhen ,
Y ang Min

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1. Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China ;
2. College of Architectural Civil Engineering and Environment Ningbo University Ningbo 315211 China ;
3. College of Life Sciences Northwest Sci-Tech University of Agriculture and Forestry Yangling 712100 China

Received date: 2003-02-23

Online published: 2010-10-01

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Abstract

Six strainsof yeastsscreened from soil of oil plant have been utilized in activated-sludge process to treat the highly concentrated oil-bearing wastewater directly and continuously.The removal rate of COD_Cr and oil reaches87.1%～97.3% and92.9%~99.8% respectively when the influent wastewater contains12000mg/L COD Cr and3500mg/L oil and the BOD 5-yeast load isbetween1.0～2.5kg/(kg·d).The resultsindicate the optimum BOD5-yeast load(a unit yeast)is 1.0～ 1.5kg/(kg·d)from the angle of sedimentation.

Key words： yeast; highly concentrated oil-bearing wastewater; BOD 5-yeast load

Cite this article

Lü Wenzhou , Liu Ying , Huang Yizhen , Y ang Min . Study on the treatment of highly concentrated oil-bearing by yeasts[J]. Industrial Water Treatment, 2004 , 24(1) : 16 -20 . DOI: 10.11894/1005-829x.2004.24(1).16

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