Accelerating the start-up of the cathodic biofilm by adding acyl-homoserine lactone signaling molecules
作者： Yanlun Fang , Chengsheng Deng , Jing Chen , Jian Lü , Shanshan Chen
DOI: 10.1016/J.BIORTECH.2018.07.095
关键词:
摘要: Abstract Electroactive biofilms (EABs) are essential for bioelectrochemical systems, however, the formation of cathodic EABs is more time-consuming than anodic EABs. This study aims to evaluate whether acyl-homoserine lactones (AHLs) could facilitate start-up Geobacter soli With AHL addition, biomass, cell viability, and extracellular polymeric substance (EPS) abundance cathode-associated G. were increased. Likewise, redox activities EPS outermost proteins in enhanced presence AHLs, which consequently led better performance biofilms. Compared control without lag periods reduced by approximately 50%, electron uptakes 1.3–2.0 times, denitrification rates doubled with addition cycle, comparable those mature These findings open up an opportunity accelerating via AHLs.
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