Fresh cassava soaking and washing method

The present invention discloses a fresh cassava soaking and washing method which abandons the traditional cassava leaching process and sends a dry-method mud-removed and peeled cassava into a cassava washing tank to conduct four-stage soaking and washing. The dry-method mud removing and peeling process before soaking and washing can reduce the load in the subsequent steps of soaking and washing, etc., and save cleaning water. Cassava washing water is recycled and reused after the precipitation treatment and the water consumption is also reduced. The innovative structure design of the cassava washing tank can reduce production water and the waste water discharged volume. The purpose of terminal emission reduction is realized by the measures, the waste water discharged volume per ton of cassava starch is reduced to about 9.6-10 m with a decrease by about 50%, and the entire production system has a high degree of automation, uses less labor and is easy to operate. By means of strengthening the control from the source, reducing the process emission, recycling and other means, the fresh cassava soaking and washing method improves the utilization of water resources, reduces the amount of pollutants to the maximum, and ultimately realizes balance between economic growth and environment-friendliness.