Decolorizing principle and application of decoloring agent food factory wastewater

Food industry due to a wide range of raw materials, a wide variety of products, in the production process, in order to make food achieve good color, food coloring and dyes will be added, so the food processing wastewater is generally characterized by high organic matter and suspended matter content, deep color has a strong oxygen consumption, the discharge of wastewater water, water quality is very different, Therefore, if you want to deal with this kind of food factory wastewater chroma problem, decolorizing agent is the key.

 At present, the wastewater of food processing plants on the market is generally treated by the following biological treatment method, using equipment to treat, but this method can only remove some impurities, and can not be completely solved, and it is also easy to block the membrane, resulting in equipment failure, so the effect is not particularly obvious. However, if the food wastewater demulsifier is added to the front-end regulating tank of the equipment, it can reduce the COD, ammonia nitrogen and phosphorus in the wastewater while solving the above problems, and can also quickly remove the color in the wastewater, so that the turbidity of the wastewater can quickly become clear water quality, and the water quality of the final discharge can meet the standards for reuse and discharge.

The usage of decolorizing agent in food factory:

First of all, it is recommended to conduct a small test before use in the treatment of food factory wastewater, adjust the PH value to the appropriate range of 7-9, and then you can add the food factory wastewater demulsifier for stirring, and then add the appropriate amount of polyacrylamide (PAM) solution for rapid flocculation precipitation, a few seconds will appear alum effect, then you will find that the flocculant in the sewage is obviously concentrated and sank, and the color is reduced. The chromaticity of the wastewater can be cleaned first by means of an agent. Finally, combined with the equipment process, the equipment can reduce the effect of impurities blocking the film, thereby reducing the biochemical pressure.