摘要
引言目前,有关SBR工艺运行过程中的控制参数及控制方法的研究已比较成熟,但是对采用电子传递体系（ETS）活性表征SBR工艺运行过程中生物活性变化规律的认识仍十分有限。通过ETS活性分析,既可从生物学角度反映处理系统微生物降解有机物的能力,
The change of biodegradation activity of activated sludge was studied during nitrification and denitrification course to remove organic matters in a SBR reactor by determination of TTC-ETS activity at various concentrations of NH＋4-N and organics in influent.The experimental results show that TTC-ETS activity could be a good indicator for the biological reactions progress in SBR process;in a period of the process biological activity for biodegradation of organic matter,nitrification and denitrification decreased gradually from 39.68 mg·（g·h）-1to 21.89 mg·（g·h）-1and last to 6.58 mg·（g·h）-1at COD and concentration of NH＋4-N 300 mg·L-1 and 40 mg·L-1,respectively.For TTC-ETS activity there appeared in general characteristic points with the progress of the process,which pointed toward the start and end of different reaction stages.It was found that operational conditions had no significant influence on the change rule of TTC-ETS activity,but could affect the time appearing these characteristic points.These characteristic points on DO,ORP and pH curves marked different reaction stages,and there was a good correlation between the times they appeared and TTC-ETS activity,COD,as well as three nitrogen curves（ammonia,nitrate and nitrite）.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2012年第7期2234-2240,共7页
CIESC Journal
基金
国家自然科学基金项目(50978118)~~
