Powder noodles are an indispensable food in people's lives. They are delicious and inexpensive, and are popular among people.

In the production and processing of noodles, sweet potato flour or potato flour is generally used. In the past, the production of vermicelli was based on households, the scale was relatively small, the output was small, and the profit was low. Now the processing of vermicelli is also moving towards scale, and everything is going to be profitable. Large-scale production can effectively control production costs, better control the quality of products, reduce the labor intensity of workers, save resources, and also create economies of scale. There are many benefits. However, some difficulties have been encountered in the production process. The production of vermicelli requires a large amount of water. One is the process of processing into powder with sweet potatoes or potatoes, and the other is the process of processing into powdered noodles with powder. The process of processing into sweet potato powder or potato powder is the process of adding water to the water mill to grind it into powder. There are quite a lot of water that needs to be removed. In addition, the process of processing into a noodles needs to be heated with hot water to cook the noodles. Cooked, this is not a large amount of water, but it also needs to be treated. In the past, when processing in the family, the amount of water produced by the individual was not much, and it was generally dumped. Because it is large-scale production, the water consumption is large, and the direct discharge will cause pollution. This water contains a lot of organic matter. When it is discharged into the pond, it will consume a lot of oxygen in the water body, causing the rapid growth of the plants, and the fermentation will occur at high temperatures in summer. Stench, the ecological balance of the water body.

How to deal with this kind of water? Nowadays, the method of adding organic flocculant (PAM) is generally adopted. The cationic PAM has a polar functional group on the molecular chain, and the hydrogen bond on the longer molecular chain can act as a bridge for the suspension to form suspended particles in the sewage. The enlarged floc is precipitated to the bottom of the water, and then the press is required to carry out the filter press dehydration treatment, and finally the organic matter and moisture in the water are left. The treated water can be discharged directly to the discharge standard, and the separated organic matter is also a good fertilizer or used as feed processing, so that it can be safely discharged and can create benefits.