The Hydro MicroScreen rotating belt screen effectively separates solids from influent wastewater using little footprint and power. It achieves between 50% and 60% Total Suspended Solids removal, between 20% and 40% BOD removal, and between 30% and 40% removal of Fats, Oil and Grease. It also removes phosphorus in particulate form to achieve 10% phosphorus reduction, and, with the addition of dewatering components, it can produce up to 50% total solids without using chemicals. This technology is suitable for various uses in industrial applications, as well as for fine screening, grit removal in small plants, septage receiving and CSO/SSO screening.