Nutritional fortifiers are natural or synthetic nutrients and other nutrients added to foods in order to increase the nutritional content (value) of food according to the standards of use. It can improve the health impact of nutrition problems in a wide range of populations, including infants, the elderly, and people with low or missing nutrient intake. However, in the production process of nutrient enhancers, it will bring pollution (waste gas, wastewater, waste), and if it is not treated in a scientific way, it will cause the impact of the surrounding environment and cause greater environmental damage. Pay attention to Xiaobian to learn more about wastewater.
The production of nutrient fortifiers is based on the formulation of raw materials and then stirred, mixed, filtered, dried and other processes. Some raw materials, finished products and by-products will be discharged along with process wastewater, cleaning equipment wastewater, floor cleaning wastewater and other ways. After sampling and testing of the wastewater produced by the nutrient enhancer, it was learned that the main pollutants in the wastewater produced by the nutrient enhancer are COD (1700mg/L), BOD (1200mg/L), SS (300mg/L), ammonia nitrogen (30mg/L) and other pollutants, and a small amount of selenium will also be generated in the filtration process wastewater. According to the discharge standards, the wastewater produced by the nutrient enhancer is not up to the standard of direct discharge, and belongs to the organic wastewater of medium and low concentrations. Therefore, it is necessary to adopt a nutrient enhancer wastewater treatment process method.
The combination of physical interception (grid) + coagulation precipitation method + contact oxidation method is used to treat the nutrient enhancer wastewater.
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It is used for the front end of the nutrient enhancer wastewater treatment project, intercepting the coarse floating matter and suspended solids in the nutrient enhancer wastewater, preventing clogging and winding water facilities, reducing the scum generated by subsequent treatment, and ensuring the normal operation of the nutrient enhancer wastewater treatment process.
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PAC and PAM were added to the coagulation sedimentation tank, and stirred to make the PAC and PAM quickly and evenly diffuse into all the water to create good polymerization conditions, and condensed by brownian movement of the particles and turbulent water flow to form a fine alum flower. Due to the accumulation or aggregation or overlapping of each other, larger particles or flocs are formed, so that pollutants are more likely to sink naturally and be removed.
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Biological contact oxidation method is a kind of biofilm method between the activated sludge method and the biological filter, the filler is set in the pool, the pool bottom aeration is oxygenated to the nutrient enhancer wastewater treatment, so that the nutrient enhancer wastewater treatment is in a flowing state, full contact with the ground filler, to the biofilm adsorption of organic matter in the wastewater, under aerobic conditions, organic matter is decomposed by microorganism oxidation, nutrient enhancer wastewater treatment is purified.
The above scheme has been tested and certified by many enterprises and researchers, which can effectively solve the problem of nutrient enhancer wastewater treatment. Of course, the follow-up can be added to the depth of treatment, the nutrient enhancer wastewater treatment is further purified, and the purification can be used in production, greening and cleaning equipment to achieve water reuse. Like you can click to bookmark, share, like.