To use unicellular microalgae to remove waste nutrients from brewery wastewater while converting them intoalgal biomass has been explored but high-cost treatment and low-value biomass associated with current technologieshave prevented this concept from further attempts. In this study, a filamentous microalga Tribonemaaequale was introduced and the alga can grow vigorously in brewery wastewater and algal biomass concentrationcould be as high as 6.45 g L− 1 which can be harvested by a cost-effective filtration method.