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Identification, Growth and COD Removal Efficiency of a Preponderant Bacterium for Degradation of Pulping Effluent
  
DOI：10.11980/j.issn.0254-508X.2017.03.007
Key Words:preponderant bacteria  pulping effluent  identification  growth
Fund Project:广东省教育厅自然科学项目（2015KTSCX140）；2016年大学生创新创业训练计划省级项目（201611819053）。
Author NameAffiliation
党亚攀1 1.华南理工大学环境与能源学院，工业聚集区污染控制与生态修复教育部重点实验室，广东广州，510006 
兰善红2,* 2. 东莞理工学院生态环境与建筑工程学院，广东东莞，523808 
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Abstract:In this paper, a purified strain was isolated from activated sludge of pulping effluent, which was identified as Brevundimonas diminuta by MIDI Sherlock automatic Microbial Identification System. Effect of pH and temperature on the growth curve of the preponderant bacterium the degradation efficiency of pulping effluent were studied. The experimental results showed that the removal efficiency of COD was the best when pH was 5 at the temperature of 30℃. COD removal efficiency reached 38.5%. The removal efficiency also reached a significant level when pH was 6~8, reached up to 30%. The treatment efficiency of pulping effluent by the aerobic activated sludge system increased by more than 10% in the presence of Brevundimonas diminuta.
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