Thickened Aerobic Digestion

Biosolids management costs usually are in 30-60% range for capital as well as O&M expenses for a typical municipal wastewater treatment facility. With 16,000 facilities treating more than 30 billion gallons of wastewater every day in the US, biosolids management poses a serious challenge for the industry.
Ovivo® G-TAD™ Process
Ovivo's patented G-TADTM (Gravity Thickened Aerobic Digestion) process provides for the integrated operation of a gravity sludge thickener with two or more aerobic digesters. By operating these units as a combined system, improved treatment and efficiency is achieved.
Ovivo® M-TAD™ Process
The Ovivo® M-TADTM (Mechanically Thickened Aerobic Digestion) process is a controlled aerobic digestion system specifically designed to handle sludge produced by mechanical thickeners such as gravity belt thickeners or rotary drums. The M-TAD system utilizes two or more aerobic digesters to optimize aeration requirements, helping to keep equipment costs to a minimum.
Ovivo® SilC-TAD™ Process
Ovivo® SilC-TAD™ (Silicon Carbide Thickened Aerobic Digestion) process brings aerobic digestion and flat sheet membrane performance together into one integrated system. The system consists of two or more aerobic digesters operating in conjunction with an anoxic basin and membrane thickener (MBT). One aerobic digester forms a recycle loop with the MBT and the anoxic basin that causes digested sludge to be continuously thickened while undergoing nitrification and denitrification.