“…Over the years, various remediation techniques such as coagulation, flocculation, membrane filtration, precipitation, ion exchange, chemical oxidation, biodegradation and adsorption have been applied to remove pollutants from water [ 15 ]. Of these methods, adsorption has been singled out to be the most practical and promising technique due to its low cost, simple operations, high selectivity, environmentally benign, convenient recycling and availability of various adsorbents materials [ 16 ]. Some adsorbents such as activated [ 17 , 18 ], biochar [ 19 ], clay minerals [ 8 ] and goethite [ 20 ] have been previously used for MCPA adsorption.…”