If the mud content in the construction sand is too high, the strength of the concrete will be reduced during use. Therefore, in the sand making process, sand washing is required to remove the mud content in the sand, which requires a large amount of water and generates a large amount of sand washing sewage. If the direct discharge is not only polluting the surrounding water quality, but also increasing the cost of sand washing water. Polyacrylamide is a kind of linear polymer, which has good adsorption and flocculation effect. The polyacrylamide used for sand washing can quickly flocculate and precipitate the impurities such as soil in the sand washing sewage, and after treatment, the sand washing sewage can be clarified to meet the discharge standard or recycled, which will not only not pollute the environment but also save the water consumption in the sand washing process and thus save the sand washing cost.
In the process of sand washing, due to the difference in water quality, raw materials and production environment in different regions, the quality of sand washing sewage is also different. When choosing which kind of sand washing polyacrylamide is used, we generally determine by testing the water sample of sand washing sewage. In this way, the appropriate size of sand washing polyacrylamide can be selected, and the effect of sewage treatment will be better. Secco Environmental Protection has its own sewage water sample laboratory, if you are not sure which type of polyacrylamide to use, you can mail the water sample and we will help you test the water sample free of charge to select the appropriate polyacrylamide specification for sand washing.
