Waste Water Treatment Energy Costs
Waste treatment processes include energy-intensive operations such as aeration and pumping. As a result, waste water treatment plants (WWTPs) require significant energy consumption. As electrical prices increase, plant operators are facing higher energy costs in order to meet discharge permit requirements. The second leading expense to WWTP owners is the cost of energy, behind only personnel. For plants, who employ anaerobic digestion for biosolids treatment, the process of combusting digester gas to produce electricity and heat through cogeneration/CHP may provide a solution to rising operational costs.