ABSTRACT
Energy efficiency in existing and new wastewater treatment facilities (WWTF) can be improved by benchmarking energy use for different types of plants. Specific applications involve dissolved oxygen (DO) control, the use of adjustable-speed drives (ASDs), methane gas, heat recovery, and renewable energy. Typical savings estimates are shown to be in the range between 10 and 30%. Challenges in implementation and operation are highlighted, along with possible solutions.
