Enhancing anaerobic digestion in anaerobic integrated floating fixed-film activated sludge (An-IFFAS) system using novel electron mediator suspended biofilm carriers.
作者： Jifu Liu , Tao Liu , Shuo Chen , Hongtao Yu , Yaobin Zhang
DOI: 10.1016/J.WATRES.2020.115697
关键词: Chemical engineering 、 Activated sludge 、 Anaerobic exercise 、 High-density polyethylene 、 Anaerobic digestion 、 Methane 、 Methanothrix 、 Geobacter 、 Biofilm 、 Chemistry
摘要: Abstract Suspended biofilm carriers mediating direct interspecies electron transfer (DIET)-based syntrophic metabolism is a promising strategy to enhance anaerobic digestion and methane production by associating the advantages of conductive suspended integrated floating fixed-film activated sludge (An-IFFAS) process. However, current knowledge DIET using carrier still limited. In this study, novel mediator had been prepared introducing series graphite powders (3 wt%, 5 wt% 7 wt%) into high-density polyethylene (HDPE), applied in An-IFFAS reactors. Results showed that reactors filled with graphite-modified could degradation organic matters significantly comparison control reactor conventional HDPE at loading rates (OLRs) 5.9–23.7 kg COD/m3/d. Microbial analysis proved improved approximately 4.2% abundance Geobacter 7.3% electrotrophic methanogens (Methanothrix) exchange via comparing carriers, respectively. These findings demonstrated was able potentially proceed efficiency recover CH4-related energy.
sci-hub.se 参考文章(31)
Zhiqiang Zhao, Yaobin Zhang, T.L. Woodard, K.P. Nevin, D.R. Lovley, Enhancing syntrophic metabolism in up-flow anaerobic sludge blanket reactors with conductive carbon materials Bioresource Technology. ,vol. 191, pp. 140- 145 ,(2015) , 10.1016/J.BIORTECH.2015.05.007
Adam Masłoń, Janusz A. Tomaszek, A study on the use of the BioBall® as a biofilm carrier in a sequencing batch reactor Bioresource Technology. ,vol. 196, pp. 577- 585 ,(2015) , 10.1016/J.BIORTECH.2015.08.020
Basuvaraj Mahendran, Lori Lishman, Steven N. Liss, Structural, physicochemical and microbial properties of flocs and biofilms in integrated fixed-film activated sludge (IFFAS) systems Water Research. ,vol. 46, pp. 5085- 5101 ,(2012) , 10.1016/J.WATRES.2012.05.058
Gerard Muyzer, Alfons J. M. Stams, The ecology and biotechnology of sulphate-reducing bacteria Nature Reviews Microbiology. ,vol. 6, pp. 441- 454 ,(2008) , 10.1038/NRMICRO1892
Shanshan Chen, Amelia-Elena Rotaru, Fanghua Liu, Jo Philips, Trevor L. Woodard, Kelly P. Nevin, Derek R. Lovley, Carbon cloth stimulates direct interspecies electron transfer in syntrophic co-cultures. Bioresource Technology. ,vol. 173, pp. 82- 86 ,(2014) , 10.1016/J.BIORTECH.2014.09.009
Dogan Karadag, Oguz Emre Köroğlu, Bestami Ozkaya, Mehmet Cakmakci, A review on anaerobic biofilm reactors for the treatment of dairy industry wastewater Process Biochemistry. ,vol. 50, pp. 262- 271 ,(2015) , 10.1016/J.PROCBIO.2014.11.005
Fanghua Liu, Amelia-Elena Rotaru, Pravin M. Shrestha, Nikhil S. Malvankar, Kelly P. Nevin, Derek R. Lovley, Promoting direct interspecies electron transfer with activated carbon Energy and Environmental Science. ,vol. 5, pp. 8982- 8989 ,(2012) , 10.1039/C2EE22459C
Alfons J. M. Stams, Caroline M. Plugge, Electron transfer in syntrophic communities of anaerobic bacteria and archaea Nature Reviews Microbiology. ,vol. 7, pp. 568- 577 ,(2009) , 10.1038/NRMICRO2166
Diana Z. Sousa, Hauke Smidt, M. Madalena Alves, Alfons J. M. Stams, Syntrophomonas zehnderi sp. nov., an anaerobe that degrades long-chain fatty acids in co-culture with Methanobacterium formicicum. International Journal of Systematic and Evolutionary Microbiology. ,vol. 57, pp. 609- 615 ,(2007) , 10.1099/IJS.0.64734-0
Masashi Hatamoto, Hiroyuki Imachi, Sanae Fukayo, Akiyoshi Ohashi, Hideki Harada, Syntrophomonas palmitatica sp. nov., an anaerobic, syntrophic, long-chain fatty-acid-oxidizing bacterium isolated from methanogenic sludge International Journal of Systematic and Evolutionary Microbiology. ,vol. 57, pp. 2137- 2142 ,(2007) , 10.1099/IJS.0.64981-0