Indonesia Conference Directory

ABSTRACT Increased human activities in all sectors due to the rapid development of development, often produce pollutants such as heavy metals that have an impact on the environment and one of the alternatives is phytotechnology. This study aims to (1) Determine seagrass capacity in absorbing lead (Pb) and copper (Cu), (2) Determine optimization of seagrass, sediment and seawater in absorbing Pb and Cu. This research is an experimental research conducted at Hasanuddin University hatchery unit, Barrang Lompo Island, then analyzes the Pb and Cu metal content in the Analytical Chemistry laboratory of the Department of Chemistry, Faculty of MIPA, Hasanuddin University using Atomic Absorption Spectrophotometer (AAS). The results showed that seagrass Enhalus acoroides had a capacity to absorb Pb of 0.08 mg / L at a concentration of 120 ppm, whereas in absorbing Cu it was 0.65 mg / L at a concentration of 2 ppm, so that seagrass was more effective in absorbing Cu than Pb, at optimum results Pb levels in seawater at a concentration of 120 ppm of 3.04 mg / L and sediments at a concentration of 80 ppm of 29.30 mg / L, while the optimum results of Cu content in seawater and sediment were obtained at a concentration of 1 ppm and 2 ppm, which is 0.56 mg / L in sea water and at a concentration of 4 ppm which is 29.67 mg / L in sediment. While the optimal absorption of Pb metal by seagrass occurs at low concentrations of 40 ppm and 80 ppm at 0.07 mg / L. The same results were obtained in sediments, namely 29.22 mg / L at a concentration of 40 ppm. While the optimum content of Pb in seawater is at a concentration of 40 ppm of 1.26 mg / L.