1. Abdulrazak S, Sulyman YI, Bello HI, Akanni AS, Oniwapele YA, Muktari M (2015) Tannery wastewater treatment using activated carbon from Moringa oleifera pods. J Environ Sci Toxicol Food Technol 9(12):96–99
2. Ajmal M, Rao RAK, Siddiqui BA (1996) Studies on removal and recovery of Cr(VI) from electroplating wastes. Water Res 30(6):1478–1482
3. Anwar J, Shafique U, Waheed Z, Salman M, Dar A, Anwar S (2010) Removal of Pb(II) and Cd(II) from water by adsorption on peels of banana. Bioresour Technol 101(6):1752–1755
4. Bempah CK, Kwofie AB, Tutu AO, Danutsui D, Bentil N (2011) Assessing the potential dietary intake of heavy metals in some selected fruits and vegetables from Ghanaian markets. Elixir pollut 39(2011):4921–4926
5. Elaigwu SE, Usman LA, Awolola GV, Adebayo GB, Ajayi RMK (2009) Adsorption of Pb(II) from aqueous solution by activated carbon prepared from cow dung. Adv Nat Appl Sci 3(3):442–446