1、外文翻译题目2：微生物指标评价序批式活性污泥反应器和膜生物反应器处理城市污水性能的应用Title 2：Application of microbial indices to assess the performance of a sequencing batch reactor and membrane bioreactor treating municipal wastewaterThis article was downloaded by: Erciyes University On: 07 February 2014, At: 19:36Publisher: Taylor & Franc
2、isInforma Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UKEnvironmental TechnologyPublication details, including instructions for authors and subscription information:Application of microbial indices to assess
3、 the performance of a sequencing batch reactor and membrane bioreactor treating municipal wastewaterV. M. Monsalvo a , P. Shanmugam b & N. J. Horan c Chemical Engineering, Faculty of Science , University Autonoma of Madrid , Madrid , Spain Environmental Engineering , Central Leather Research Institu
4、te (CSIR) , Adyar, India Public Health and Environmental Engineering, Faculty of Civil Engineering , University of Leeds , Leeds , UK Accepted author version posted online: 31 Jan 2012.Published online: 02 Mar 2012. To cite this article: V. M. Monsalvo , P. Shanmugam & N. J. Horan (2012) Application
5、 of microbial indices to assess the performance of a sequencing batch reactor and membrane bioreactor treating municipal wastewater, Environmental Technology, 33:18, 2143-2148, DOI: 10.1080/09593330.2012.660652To link to this article: http:/dx.doi.org/10.1080/09593330.2012.660652PLEASE SCROLL DOWN F
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10、d at HYPERLINK Environmental TechnologyVol. 33, No. 18, September 2012, 21432148Application of microbial indices to assess the performance of a sequencing batch reactor and membrane bioreactor treating municipal wastewaterV.M. Monsalvoa , P. Shanmugamb and N.J. HorancaChemical Engineering, Faculty o
11、f Science, University Autonoma of Madrid, Madrid, Spain; bEnvironmental Engineering, Central Leather Research Institute (CSIR), Adyar, India; c Public Health and Environmental Engineering, Faculty of Civil Engineering, University of Leeds, Leeds, UK(Received 8 November 2011; final version received 1
12、8 January 2012 )Microbial indexes of filamentous bacterial density were evaluated for their potential to act as indicators of sludge settling characteristics for sequencing batch reactor (SBR) and membrane bioreactor (MBR) treatment options. These options were operated using settled sewage over a ra
13、nge of aerated loading rates from 0.05 to 0.4/d and the evolution of protozoan and metazoan populations analysed. A filament density score ranging between 0 and 5, which has previously been applied to conventional activated sludge processes, was shown also to be a useful tool for the SBR and MBR, an
14、d was correlated to the settleability of the mixed liquor from both reactors. Due to the hydrodynamics of both systems and the subsequent dierences in mixed liquors, optimum performance for each bioreactor was obtained under dierent operating conditions. Although there was no correlation between the
15、 numbers of any given protozoan species and plant operating conditions, there was a clear dependence between operating conditions and protozoan diversity. The highest diversity was found when operating conditions were optimum for both the SBR and MBR.Keywords: membrane bioreactor; sequencing batch reactor; municipal wastewater; microbial community; microbial index Introduction Poor solids settlement leading to solids separation problems in the secondary settlement tanks and on occasions, washout of the
