Alleviating acid inhibition in anaerobic digestion via a quorum-sensing strain addition: Performance enhancement and microbial mechanism analysis.

Deciphering the synergistic mechanism of quorum sensing and sulfate-reducing bacteria for directed acetate conversion during sludge fermentation.

The restricted bioconversion of C3-C5 short-chain fatty acids (SCFAs) to acetate due to thermodynamic limitations is the main bottleneck during sludge fermentation. To alleviate this constraint, this study developed an optimized approach by integrating quorum sensing regulation with incomplete-oxidation sulfate-reducin...

Quorum sensing-driven riboflavin-hyperproducing electroactive bacteria for enhanced bioelectricity generation from sludge: From modular optimization to process performance

Waste activated sludge (WAS) represents a significant byproduct of wastewater treatment and a renewable resource for bioenergy. Bioelectrochemical systems (BESs), which couple microbial metabolism with electrochemical processes, can directly convert the organic matter in WAS into electricity. However, their performance...

A Review on Effects of Sulfate in Anaerobic Digestion and Effect of Auto Generative Pressure on Biogas Production

Suppression of quorum sensing-mediated cell autolysis for highly efficient lactic acid production by Lactobacillus paracasei LYS2.

In this study, QS inhibition in L. paracasei LYS2 is shown to alleviate cell autolysis, increases biomass, and enhances LA production, and provides a promising strategy for LA production.

Mitigating the inhibition of organic matter to mainstream anammox system via electrolytic-enhanced strategy: Efficacy and underlying mechanisms.

The organic matter poses a considerable challenge to the stability and broad-scale application of anaerobic ammonium oxidation (anammox) process in mainstream wastewater treatment. In this study, an electrolytic-enhanced anammox biofilm reactor (E-ABR) was developed to fortify the resilience of anammox system against i...

Insights into the suppression of filamentous bulking by quorum quenching in the activated sludge process with low dissolved oxygen: Endogenous quorum quenching mediated multi-enzymatic degradation of AHLs and carbon-flux redistribution.

Under low-DO operation, the SBR supplemented with P-gel effectively suppressed sludge bulking, prevented biomass loss, and sustained stable nutrients removal by regulating physicochemical properties of activated sludge.