Water reconditioning and reuse in the food processing industry: Current situation and challenges

摘要

Background: While the demand for food and water is growing, water shortages are already occurring in many of the world's major food production areas. Irrigation is unarguably the most water demanding operation among the food supply chain, however, efforts from different sectors will collectively secure food for the world's population. Food processing is a key component of the food supply chain and its water footprint is of great consideration, not only because of the high-quality water used in the manufacturing of products but also for the significant volumes of pollutant wastewater generated. Different food sectors produce wastewater of different qualities, but for all cases water reconditioning and reuse offer opportunities to reduce water consumption and to contribute to a better water management in the food processing industry.