Environmental control for biological nutrient removal in water/wastewater treatment

摘要

Control of a water/wastewater treatment system is effected by sensing the oxidation reduction potential (ORP) at various parts of the system and using neuro-adaptive process control techniques to make adjustments when necessary based on the ORP values. Internal nitrate recycling, sludge return, organic substrate addition and/or aeration can be adjusted to achieve the desired environmental conditions. In the event that phosphorus removal is necessary, the system can be used to assure proper detention time needed for biological phosphorus uptake.