Pilot Plant Study
We have successfully conducted pilot plant studies for various industrial wastewater to study the efficacy of ULRD (UNITED’S LOW RETENTION DIGESTER), The ULRD concept is aimed for treating low & medium strength waste-water at high volumetric loading rates, with shorter hydraulic retention time.
ULRDs are simply the vertically stretched versions of traditional UASB digesters. UASB digesters are commonly built up to 6.0 to 12.0 m height while ULRDs are 20-24meter tall. The Pilot ULRD plant were designed at 8-15 VLR, maintaining up flow velocity between 1.4 mtr/s to 5mtrs/sec, The main advantage of ULRD is that it offers a smaller footprint area, higher mixing due to the higher up flow velocity and consequently an improved mass transfer and biomass activity than the UASB digester. Also as the name suggest, it offers the prime advantage of LOW RETENTION TIME. ULRD responds to the need of small, medium and large sized chemical and paper industries.
