Rotary Drum Micro Filter with Automatic Backwashing for Farm Wastewater Treatment GT-3500 Product Overview The GT-3500 rotary drum micro filter separator features an upgraded double screw extrusion design, combining rotary drum microfiltration with dual-screw dewatering. All material contact components are constructed from 304 stainless steel for superior corrosion resistance and extended service life. Wastewater enters through a dual-direction feeding inlet, where the