Treatment of Food Industry Wastewater With Ultrasound: A Big Opportunity for the Technology

Considering the growing concerns about wastewater management in the food industry, new strategies are increasingly under study. Among them, ultrasound has been proposed for industrial wastewater treatment. This technology has been applied for water disinfection and decontamination and as a pretreatment prior to anaerobic digestion for biogas production. Ultrasound treatment alone did not reduce the microbial load of wastewater nor completely degrade pollutants. However, its combination with other strategies, including thermal treatment, addition of oxidizing agents, filtration, and adsorption, has been successfully applied for wastewater treatment