AWWA ACE63074

This slide presentation outlines AwwaRF Project #3051: Evaluation of the Dynamic Energy Consumption of Advanced Water and Wastewater Treatment Technologies. Project objectives included: quantifying actual and theoretical energy consumption of selected water and wastewater treatment technologies; evaluating factors affecting energy consumption (EC); and, identifying energy optimization opportunities. A list of participating utilities and technologies is provided, along with steps to developing energy analysis framework that include: Information Collection; Theoretical Energy Efficiency Analysis and Water Quality Correlations; Energy Consumption Auditing; and, Identifying Potential Energy Saving Features. Several EC analysis examples are given including Arizona American Water (Anthem): MBR, involving challenges that included: the amount of time required to assist in the study; would like to do both Drinking Water and Wastewater membrane systems, or none at all; and, one of the SES supports equipment for both water and wastewater facility. Cauley Creek, GA: MBR where the staff indicated not much the plant can do to further reduce energy consumption without potentially violating system warranties or permit. Pooler, GA: MBR where there was only one power reading for the entire facility, and had a constant flow rate, near constant water quality. Seward, NB: reverse osmosis (RO) where the challenge was its remote location (3 hr drive from Omaha). West Basin: MF, UV, RO where energy monitoring included: the individual RO and MF processes have current transformers (CT) installed; each CT has a local readout but the information is not recorded by the SCADA; and, MF/RO monitoring will exclude Phase IV to avoid interfering construction; Phase IV UV will be available. Three more EC analysis examples are outlined, and a summary of observations included: more utilities are using advanced treatment technologies for regulatory compliance as well as tapping into alternative water sources; ATT usually uses more energy; this project develops an Energy Analysis Framework; and, this project evaluates true EC for 6 ATTs. Includes figures.