Responses of composition and metabolism of microbial communities during the remediation of black and odorous water using bioaugmentation and aeration

Optimizing algal-bacterial systems for efficient sugar cane wastewater treatment: Pollutant removal and biomass resource recovery

Sugarcane wastewater is highly biodegradable; however, conventional single-treatment processes are constrained by its excessive organic load. Here, we integrated anaerobic acidification with microalgal bioaugmentation to establish an algal-bacterial symbiotic system, leveraging metabolic synergies within functional microbial consortia. The results demonstrate that this system enables the synergistic integration of anaerobic and aerobic bacteria with microalgae, forming a highly efficient metabolic network that enhances water purification. By systematically investigating environmental determinants of water purification and biomass dynamics in conjunction with response surface methodology (RSM), we optimized environmental parameters. The optimized parameters included an aeration rate of 267 mL/min, a light intensity of 6985 lx, and a 12:12 h light-dark photoperiod. Under optimized conditions, the system achieved a COD removal efficiency of 98.56 % and a biomass yield of 3.43 g/L, underscoring dual efficacy in organic load reduction, aeration demand minimization, and resource recovery. This work provides a sustainable approach for treating high-strength sugarcane wastewater through integrated algal-bacterial processes.

Sustainable management and valorization of biomass wastes using synthetic microbial consortia

In response to the persistent expansion of global resource demands, considerable attention has been directed toward the synthetic microbial consortia (SMC) within the domain of microbial engineering, aiming to address the sustainable management and valorization of biomass wastes. This comprehensive review systematically encapsulates the most recent advancements in research and technological applications concerning the utilization of SMC for biomass waste treatment. The construction strategies of SMC are briefly outlined, and the diverse applications of SMC in biomass wastes treatment are explored, with particular emphasis on its potential advantages in waste degradation, hazardous substances control, and high value-added products conversion. Finally, recommendations for the future development of SMC technology are proposed, and prospects for its sustainable application are discussed.