Treatment of mariculture wastewater by indigenous cyanobacteria-bacteria consortium in a photobioreactor

This study developed a sustainable approach for mariculture wastewater treatment by utilizing indigenous biofilm aggregates-comprising bacteria and algae-harvested directly from a local wastewater discharge outlet. Key operational parameters, including inoculum mass, influent pollutant concentration, and hydraulic retention time, were systematically evaluated to optimize treatment performance in a photobioreactor. Furthermore, shifts in microbial community composition and relative abundance were analyzed before and after operation. The results provide valuable insights for the design of efficient and low-cost biological treatment systems tailored to mariculture effluent.