Making waves: Rethinking membrane technologies for water remediation from a full-chain application perspective

Membrane technology has become a critical platform for advancing water pollution control from standard-compliant discharge toward high-quality water reclamation, owing to its high separation selectivity, modular configuration, compact footprint, and compatibility with process intensification. Despite its broad application in industrial wastewater treatment, drinking water purification, and wastewater reuse, its field-scale performance remains constrained by a persistent mismatch between material-level advances and engineering-scale requirements. In particular, insufficient attention to scenario-specific water matrices, process coupling, fouling evolution, and life-cycle operation and maintenance has limited the translation of membrane performance into durable remediation efficiency. This viewpoint revisits the development logic of membrane technologies for water remediation from a full-chain application perspective, moving beyond the conventional material-centered optimization paradigm. We propose a three-dimensional framework that integrates scenario-oriented membrane design, synergistic process empowerment, and long-term operational regulation. This framework emphasizes that next-generation membrane systems should evolve from passive separation barriers into adaptive, integrated, and serviceable remediation platforms. By identifying key bottlenecks and linking them with emerging industrial demands, this work provides a forward-looking perspective for developing efficient, resilient, and sustainable membrane technologies for water remediation.