The food industry has a wide range of raw materials and a wide variety of products, resulting in significant differences in the amount and quality of wastewater discharged. Therefore, the wastewater generated during the production process needs to undergo a series of treatments to ensure that it does not damage the natural environment. Most of the wastewater is from tank flushing and raw material flushing. The wastewater from the food industry has high suspended solids content, good biodegradability, and high influent color. Most of the wastewater from the food industry is treated by biochemical methods.
The food industry has a wide range of raw materials and a wide variety of products, resulting in significant differences in the amount and quality of wastewater discharged. Therefore, the wastewater generated during the production process needs to undergo a series of treatments to ensure that it does not damage the natural environment.
Most of the wastewater is from tank flushing and raw material flushing. The wastewater from the food industry has high suspended solids content, good biodegradability, and high influent color. Most of the wastewater from the food industry is treated by biochemical methods.
The general food industry wastewater can meet the comprehensive discharge standards after "pretreatment+biochemical treatment". If it needs to be reused or meet higher treatment requirements, a deep treatment unit needs to be added after biochemical treatment. Deep treatment usually mainly includes air flotation, multi-media filtration, and membrane filtration.