Competitive effects for the adsorption of copper, cadmium and lead ions using modified activated carbon from bamboJherwin Ocreto, Chester Ian Go, Jans Cholo Chua, Cyrrus Jude Apacible and Anabella VilandoMATEC Web Conf., 268 (2019) 06021DOI: https://doi.org/10.1051/matecconf/201926806021