Hydroponic Farm Wastewater Treatment Using an Indigenous Consortium

Hydroponic farms produce wastewater that need to be treated before being released into the environment. A three-step screening process (microplate, batch, and semi-continuous flasks experiments) initially designed select an efficient microalgae strain allowed isolation of a consortium naturally developed in hydroponic farm wastewater. During non-optimized experiments, best performing strain, Scenedesmus obliquus UTEX393 wastewater-born cultures achieved good average linear growth rate (0.186 0.198/d, respectively) high nitrogen removal rates (23.5 mgN/L/d 21.9 mgN/L/d, respectively). Phosphorus was very probably due precipitation. An integrated treat using consortium. Despite relatively low coagulation efficiencies preliminary tests, when continuous process, chitosan harvest The also for removing nitrate phosphate less than seven days (average 98.2 87.1% phosphate, These promising results will help define pre-industrial pilot process.