Bacterial and methanogenic archaeal communities during the single-stage anaerobic digestion of high-strength food wastewater

Microbial community analysis in a combined anaerobic and aerobic digestion system for treatment of cellulosic ethanol production wastewater

“…Furthermore, species (bands 13 and 15) belonging to Firmicutes were associated with biogas production of hydrogen and carbon dioxide in the EGSB reactor, ending in reduction of acetate (Table 2). These findings agree with those of previous studies regarding the role of these microorganisms, which are known to be effective for degradation of complex organic materials and acetate to hydrogen and carbon dioxide (Jang et al 2014;Narihiro et al 2012). In addition, Moorella thermoacetica (band 13) is responsible for fermented acetate production.…”

Effect of dairy manure to switchgrass co-digestion ratio on methane production and the bacterial community in batch anaerobic digestion

“…A study by Miura et al (2007) found that the relative abundance of Chloroflexi decreases at low pH [45]. Other studies also found Chloroflexi reduction under high organic loading rate, VFA over accumulation, or low pH conditions [43,46,47]. Thus, maintaining a stable pH and preventing VFA over accumulation is important for retaining Chloroflexi from the inoculum and providing a favorable situation for the growth of Chloroflexi.…”

Microbial structures and community functions of anaerobic sludge in six full-scale wastewater treatment plants as revealed by 454 high-throughput pyrosequencing

“…It was postulated that the anaerobic samples from municipal WWTPs have the same characteristics. However, Chloroflexi, Proteobacteria and Bacteroidetes have been demonstrated to exhibit higher abundance in industrial WWTPs, compared with anaerobic digestion sludge from food-based wastewater (Jang et al, 2014). It had been reported that members of Chloroflexi were important in anaerobic digestion sludge (Riviere et al, 2009), resulting in Chloroflexi becomed more abundant than other phyla in anaerobic sludge sample from the plant QX.…”