Electrochemical Methods for Protein and Lipid Recovery and Valorization from Waste Activated Sludge

Abstract

Waste activated sludge (WAS), traditionally considered a by- treatment, is increasingly recognized as a valuable source of and other biomolecules with potential for resource recovery and Electrochemical technologies have emerged as promising valorization because they can promote extracellular polymeric cell lysis, and biomolecule release under controllable conditions. recent advances in the electrochemical recovery of proteins and the mechanisms governing their release, including reactive transfer, electroporation, and electro-osmotic effects. electrocoagulation, bioelectrochemical systems, and hybrid compared in terms of treatment conditions, recovery biomolecule quality. Particular emphasis is placed on the ability of to recover proteins and lipids while limiting excessive oxidation their structural integrity and subsequent applications. The biomolecules into sludge biorefineries for producing biofuels, other value-added products is discussed within a circular electrochemical technologies represent a versatile pathway for environmental liability into a source of high-quality biomolecules supporting the transition of wastewater treatment plants toward recovery and more sustainable environmental management.