Application of Mg/Al-hidrotalcite to reduce Cu(II) and Pb(II) metals in ground water in the environment of a used battery home industry at Pesarean Village, Tegal, Central Java

The reduction of Cu(II) and Pb(II) metals in groundwater in the environment of a used battery home industry at Pesarean village Tegal Central Java is being carried out by the adsorption method using Mg/Al-Hydrotalcite. Adsorption is done by varying the adsorption time (0, 15, 30, 45, 60, 75 and 90 minutes) and variations in the adsorption temperature (room temperature, 40, 50, and 60 °C) between the adsorbent and the sample. Mg/Al-Hydrotalcite adsorbent can work optimally to reduce the concentration of Cu and Pb after 30 minutes. Mg/Al-Hydrotalcite can be used for adsorption of Cu(II) and Pb(II) in groundwater with q_e values of 0.7823 and 0.1696 mg.g^–1, respectively. The adsorption kinetics model for Cu and Pb metals all follow the pseudo-second-order kinetics model.