The SpiraSnail screw-type grit dewatering system from Hydro International, designed to work in combination with the GritCup washing system, achieves 95 percent removal of grit 106 microns and larger and 70 to 75 percent removal of 75 to 106 micron particles, helping reduce grit deposition and abrasive wear in downstream processes.Applications include new wastewater treatment plants, treatment plant retrofits with a peak capacity of 10 mgd, or as a replacement for worn or ineffective grit treatment systems.“The GritCup and SpiraSnail system has been specifically developed as a joint solution to grit washing and dewatering,” says Adam Neumayer, operations director, Hydro
