Energy is the single highest operating cost in a wastewater treatment plant, with energy to operate blowers for aeration being the single highest energy consumer. With rising energy costs, it is vital to examine the system’s efficiency and understand how each piece of equipment works with one another and how this interaction impacts plant energy efficiency. This paper outlines the traditional approach to wastewater treatment plant design and the efficiency problems associated with it, as well as explains system-splitting, an alternate design approach with key efficiency gains.
Comparing blower performances across different manufacturers and technologies has long been a difficult task. For many years, it was all too easy to present data that, though accurate, was potentially misleading. Manufacturers were selective about what information they published, as well as the conditions they chose to specify performance. The result was a numbers game that the buyer frequently lost.