The Gulf Coast Authority is a publicly owned waste treatment authority that operates several treatment facilities in the Houston area. To control the electrical cost associated with running aerators, the Washburn tunnel facility installed a continuous Dissolved Oxygen (D.O.) monitoring system. By optimizing the D.O. concentration in the treatment tanks and not continuously running aerators, significant energy savings were achieved.
The reduced use of aerators not only saves the energy (and the pollutants associated with electrical generation), but also increases the length of service and decrease wastes generated as a result of equipment maintenance.
Details of Reductions
Additional Information :
In 1986, before this system was installed GCA used 1.03 KWhr/# of BOD. In 1994 the rate was 0.86 KWhr/# of BOD. At the 1986 rate this would have cost GCA an additional $270,000 in utility expenditures.