Sustainable use of longan seed waste as a natural coagulant aid for low-cost and eco-friendly water treatment. - Aunkham A; Keawdounglek V; Sim WC; Aiyee B; Choochan P; Chumueang P; Intawong W; Thambun N; Anantaburi A; Klinchan P (PloS one, 2026)