The patented ADI-BVF digester, a low-rate system that combines features of the upflow sludge blanket and anaerobic contact systems, will treat most warm waste streams of moderate to very high organic strength.

Removal rates for BOD and SS exceeded 90 percent for a confectionary waste and reached up to 99 percent for an apple processing and wastewater. It also treats wastewater with very high FOG and SS concentrations.

The system is simple to operate because it has built-in equalization and sludge storage.  It is a robust system capable of handling shock loadings and typically requires little or no nutrient addition.

The BVF digester provides an excellent place for disposal of waste aerobic sludge.  In turn, digestion of this sludge increases the amount of biogas produced and saves on sludge handling and disposal costs.

The cost f equalization and primary treatment can be avoided because the BVF reactor is able to treat wastewater with high COD, BOD, SS and FOG concentrations.