Tag: Coagulation and sedimentation

Wastewater pretreatment methods primarily include physical, chemical, and biological methods. The specific methods are as follows: 1. Physical Pretreatment 1.1 Screens: Remove large particles (such as plastic and paper scraps) through interception. 1.2 Grit Chambers: Use gravity to separate inorganic impurities such as gravel and soil. 1.3 Grease Trap: Removes