Abstract
Extending sulfate reducing sludge granulation to real sulfate-laden wastewater was trialed in this study. Two types of reactors, namely sulfate reducing upflow sludge blanket (SRUSB) reactor and continuous stirred tank reactor (CSTR), were used for granulation. Sulfate-reducing granules were observed after 5 months' operation of stepwise hydraulic retention time (HRT) shortening, recirculation cycle adjustment, and air scouring in the SRUSB reactor. Comparatively, granular sludge was achieved in the CSTR after 6 months of cultivation with an average size of 220 μm. With the process of granulation, the HRTs of the two types of reactors were reduced to 2.2 and 2.8 h, respectively for the SRUSB and CSTR reactors. The abundance of sulfate-reducing bacteria (SRB) related genera reached 29.3 and 45% in the SRUSB and CSTR reactors, respectively. Incomplete organic oxidizing SRB were dominant in the CSTR and SRUSB is predominated by complete organic oxidizing SRB, which facilitated a higher organic loading rate. Considering the operating merits, the CSTR is preferable as a pretreatment unit (e.g., for acidification), while the SRUSB reactor can be used for maximum organics removal or sulfide production. Due to the high suspended solids...Continue Reading
References
Feb 18, 1999·Biodegradation·L W Hulshoff PolG Lettinga
Feb 9, 2002·Applied Microbiology and Biotechnology·H H P FangH Liu
May 15, 2002·Journal of Biotechnology·Hong Liu, Herbert H P Fang
Jan 30, 2003·Water Research·P N L LensG Lettinga
Jul 21, 2004·Biotechnology Advances·Yu Liu, Joo-Hwa Tay
Apr 26, 2005·Biotechnology and Bioengineering·M K de KreukM C M van Loosdrecht
Mar 18, 2006·FEMS Microbiology Ecology·Caroline O'Reilly, Emer Colleran
Jun 20, 2006·Bioresource Technology·Puspendu Bhunia, M M Ghangrekar
Mar 14, 2007·Molecular Systems Biology·Sergey StolyarDavid A Stahl
Jun 6, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·M K de KreukM C M van Loosdrecht
Apr 10, 2008·International Journal of Systematic and Evolutionary Microbiology·Daisuke SuzukiKatsuji Ueki
Jun 11, 2008·Water Research·An-jie LiJi-dong Gu
Dec 9, 2008·Water Research·Bing-Jie NiXian-Liang Dai
Apr 7, 2009·Water Research·Jin WangMark C M van Loosdrecht
Nov 17, 2009·International Journal of Systematic and Evolutionary Microbiology·Kegui ZhangXiuzhu Dong
Mar 20, 2010·The ISME Journal·Charmaine NgRicardo Cavicchioli
Feb 1, 2011·BMC Bioinformatics·Christopher QuincePeter J Turnbaugh
Jun 16, 2012·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Alfons J M StamsCaroline M Plugge
Aug 9, 2013·Water Science and Technology : a Journal of the International Association on Water Pollution Research·T HaoG H Chen
Jul 30, 2014·Frontiers in Microbiology·Anna EngelbrektsonJohn D Coates
Aug 3, 2014·Water Research·Tian-wei HaoGuang-Hao Chen
May 1, 2015·Biotechnology and Bioengineering·Dong-Hoon KimMi-Sun Kim
Mar 25, 2016·Water Research·Gang GuoGuanghao Chen
May 28, 2016·Water Research·Di WuGuang-Hao Chen
Mar 13, 2017·Journal of Hazardous Materials·Qian ZengGuanghao Chen
Jun 19, 2017·Water Research·Bo WangGuang-Hao Chen
Jul 5, 2018·International Journal of Environmental Research and Public Health·Nsanzumukiza Martin VincentJuan Tong
Jul 10, 2018·Water Research·Sen LinGuanghao Chen