Original ResearchPublished 5 December 2025Selective phosphate uptake in the presence of sulfate with granular spent coffee grounds-based adsorbents via metal oxide modificationBernd G. K. Steiger · Adekunle C. Faleye · Bolanle M. Babalola · Lee D. WilsonFrontiers in Environmental Chemistrydoi 10.3389/fenvc.2025.1713367