Pilot Plant Study

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.

The Study Conducted at Various Industries are…

To reduce the energy costs and obtaining a high up flow velocity, the ULRD introduces the internal circulation system induced by Biogas collected within the system. ULRD can be considered as two anaerobic treatment compartments one on top of other, one highly loaded and one low loaded. Its special feature is the separation of Biogas in two stages within a tall digester. The first compartment of the digester contains an expanded granular sludge bed where the most organic pollution is converted into methane rich Biogas.

  1. RIA CETP, Roha
  2. Elpee Chemicals, Roha
  3. Sudarshan Chemicals, Roha
  4. United Phosphorus, Jhagedia
  5. For Caramel Effluent, Ahmedabad