Paper analyzes energy consumption and optimization potentials in wastewater treatment plants (WWTPs). The paper focuses on identifying key factors affecting energy use across different treatment stages, including preliminary, primary, secondary, and tertiary treatment. Strategies for improving energy efficiency are also discussed, such as the implementation of advanced technologies, aeration optimization, real-time process control, and the utilization of by-products, especially sludge, for biogas production. Based on literature review and case studies, the paper highlights the potential for transforming WWTPs into energy self-sufficient systems, reducing operational costs and greenhouse gas emissions while maintaining the quality of treated water.
Blagojević et al. (Wed,) studied this question.