Yaceh, N. L., Olakunle , M. S., & Maina, N. S. (2025). Biosorption of Chromium and Nickel from Industrial Oil Mill Wastewater Using Groundnut Pod Waste Activated Carbon. ABUAD Journal of Engineering Research and Development (AJERD), 8(1), 88–103. https://doi.org/10.53982/ajerd.2025.0801.10-j