The presence of heavy metals in environmental waters having an important place in the industrial waste is a major threat to viability. Heavy metals are transported to humans through the ecological cycle, damaging many tissues and organs. In recent years, agricultural and food waste can be used to remove heavy metals. At the present study, magnetically modified coffee grains which are alternative to conventional particle systems were prepared and heavy metal removal performances were investigated. The coffee grains used were magnetically modified by contact with water-based magnetic fluid. | Turkish Journal of Chemistry Turk J Chem 2021 45 157-166 http chem TÜBİTAK Research Article doi kim-2006-47 Heavy metal removal with magnetic coffee grain 1 2 3 1 Sevgi ASLIYÜCE ÇOBAN Ivo SAFARIK Adil DENİZLİ 1 Hacettepe University Department of Chemistry Ankara Turkey 2 Department of Nanobiotechnology Biology Centre CAS Ceske Budejovice Czech Republic 3 Regional Centre of Advanced Technologies and Materials Palacky University Olomouc Czech Republic Received Accepted Published Online Final Version Abstract The presence of heavy metals in environmental waters having an important place in the industrial waste is a major threat to viability. Heavy metals are transported to humans through the ecological cycle damaging many tissues and organs. In recent years agricultural and food waste can be used to remove heavy metals. At the present study magnetically modified coffee grains which are alternative to conventional particle systems were prepared and heavy metal removal performances were investigated. The coffee grains used were magnetically modified by contact with water-based magnetic fluid. Magnetically modified coffee grains were characterized by scanning electron microscopy SEM Brunauer Emmett Teller BET surface area analysis and electron spin resonance ESR . Adsorption studies are made with four different heavy metal ions namely Cu II Pb II Cd II and Zn II . Adsorption isotherms were determined and heavy metal removal performance of magnetic coffee grains were investigated from synthetic waste water. Key words Magnetic modification coffee grain heavy metal ion synthetic waste water 1. Introduction In recent years heavy metal pollution has reached dangerous dimensions with the increase in industrialization. Many industrial activities aiming at improving the quality of life of people also leave heavy metals to the environment which will endanger for human health. Fertilizers pesticides mining tanning .
