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The role of polyacrylamide in the treatment of food plant wastewater

2022-12-30 16:27:01

Because of the variety of food factory, food production of raw materials are also different, which results in food factory sewage quality is not the same; And by the seasonal change of our living needs of different food, but also make food factory sewage water quality and quantity of seasonal changes; The content of organic matter in the sewage of food factory is very high. If the sewage is not treated, it is easy to ferment and stink, and direct discharge will affect the surrounding water quality and environment. Food factory sewage treatment with polyacrylamide is a kind of polymer linear polymer, has good adsorption, flocculation effect, can make food factory sewage impurities quickly flocculated group, precipitate treatment can make food factory sewage quickly clarified to meet the discharge standard, so as to reduce the discharge of the surrounding water quality and environmental pollution, In addition, the treated water in some food production can also be recycled, which also reduces the water consumption in the production process and saves production costs.

I don’t have to say that you can guess what food waste water contains. There are alcohol, monosodium glutamate, white wine, lactose, starch, xylitol, citric acid, vegetables, sugar and other waste water discharged in the processing process, characterized by high COD,BOD,SS, and oil content, is a high concentration of organic waste water. Pollution hazard is to make water nutrition, thus affecting aquatic organisms can seriously lead to death, resulting in water odor, pollution of the environment and a series of chain reactions.

Generally, it is a cationic polyacrylamide product with relatively high ionic degree and molecular weight to treat organic wastewater. The dosage and proportion of polyacrylamide concentration is: 2 ‰, 2-3 grams per ton. The traditional methods are physical sedimentation and biochemical fermentation. In the biochemical treatment process, the sludge should be dehydrated with polymer flocculant.

Like monosodium glutamate factory, brewery, sugar factory, beverage factory, all belong to the food factory. We suggest a small trial to get a suitable type of polyacrylamide. It’s not actually ionic. The higher the molecular weight, the better the treatment. Choosing the right product can reduce our cost and increase efficiency.


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