The traditional starch wastewater treatment usually involves directly pumping the wastewater into a filter press with a centrifugal pump, filtering the starch solid waste, air-drying, packaging and then transporting it away. Such a process generally encounters two problems in actual use.

1. The problem of processing capacity. Because the content of starch solid waste in water is small, a large amount of water needs to be transported during the treatment process, and the capacity requirement of the filter press is also relatively large, which causes a large workload When the factory's production volume increases, sometimes the sewage treatment is too late to work, which will affect production.

2. When the factory starts production every day, the starch solids left behind when the production is closed the day before are often precipitated in the pipelines and tanks. At this time, a lot of clean water is needed to rinse, and sometimes the solids cause centrifugation. The pump is damaged due to difficulty in working.

Faced with these two problems, Holland Parker environmental protection uses the characteristics of the peristaltic pump to provide a new concept of sewage treatment. First of all, the sewage is poured into a large sewage bucket, and the volume of the bucket is designed according to the requirements of the workload. Then let the sewage stand for several hours, so that the solid starch can settle to the bottom of the sewage hopper, causing solid-liquid separation in the hopper, and then the viscous solids at the bottom of the hopper are directly transported to the sludge bag through the peristaltic pump. factory. *Afterwards, the clean water in the bucket is slightly treated and then recycled and reused in production.

U.S. National Starch uses such advanced processing methods, and truly appreciates the production benefits and economic benefits brought by peristaltic pumps in production practice.

1. The investment of the filter press is omitted, and the sewage hopper is directly used to realize the solid-liquid separation in the hopper. The peristaltic pump can transport a large amount of solid matter, so it can be poured directly into the sludge bag.

2. The energy consumption is greatly reduced. Because a large amount of water is used as the carrier, the energy consumption of the centrifugal pump is mainly used to transport the water medium during the transportation process. At the same time, the energy consumption of the filter press is mainly to separate the sludge from a large amount of water.

3. The reuse of a large amount of clean water not only saves electricity consumption, but also saves water consumption. Such a process is a very good idea, but in the design, the pump that transports sludge must provide high requirements, that is, it can transport media with uncertain mucus and media with a large solid content. Peristaltic pumps just meet this delivery requirement, while other types of pumps cannot solve these two problems at the same time.