US 2014/0231360 A1 · NH3 Feed-Forward Control of Blower Output

Abstract

A system for treating wastewater includes an aeration tank having a plurality of air diffusers located within the tank. Air delivery equipment provides air to the tank via air diffusers. An ammonia sensor located near or upstream of the wastewater inlet is used by a controller to measure the ammonia content of the wastewater at the inlet. The controller then modifies the actual airflow provided to the tank based on a prediction of the level of air flow required to fully treat the wastewater before it reaches the outlet and controls the air source to provide the predicted level of air flow.

Claims17

Dependent claims

A method for treating a wastewater to facilitate removal of ammonia and/or organics in the wastewater, the method comprising:

receiving an effluent wastewater into one or more aeration tank, wherein the wastewater flows into the one or more tanks via one or more inlets, is treated in one or more tanks, and flows out of the one or more tanks via one or more outlets to yield an effluent wastewater, the one or more tanks having a plurality of air diffusers therein supplied via an air source;
determining an ammonia level in the wastewater near the one or more tank inlets;
and
based on the determined ammonia level in the wastewater near the one or more tank inlets, adjusting the operation of the air source such that the delivered air modulates to match predicted process requirements in order to assist in the optimization of dissolved oxygen and/or ammonia levels.

1 more element

Dependencies are inferred from the claim text.

NH3 Feed-Forward Control of Blower Output

Life of this patent

NH3 Feed-Forward Control of Blower Output

Life of this patent

Abstract

Claims17