Rapid advancements in wastewater treatment technologies are essential for achieving sustainability goals related to circular water use, carbon neutrality, and resource efficiency. This review provides an integrative assessment of key advanced treatment systems including membrane filtration, advanced oxidation processes, and anaerobic digestion by examining their environmental performance, geochemical implications, and techno-economic feasibility. Findings from life cycle assessment (LCA), carbon footprint evaluations, and cost–benefit analyses identify technologies with high eco-efficiency and reduced greenhouse gas emissions, particularly those enabling energy recovery and enhanced water reuse. The synthesis demonstrates that combining environmental indicators with geochemical insights supports the development of sustainable treatment pathways. Overall, the review highlights the need for integrated evaluation frameworks that link technological function with environmental and economic outcomes, guiding future wastewater treatment under circularity and climate-resilient frameworks.
Kalaivanan et al. (Tue,) studied this question.