STUDI PENDAHULUAN PEMANFAATAN LIMBAH DESALINASI UNTUK PEMBUATAN Mg/Al HYDROTALCITE-LIKE SEBAGAI ADSORBEN METHYL ORANGE

The utilization of industrial wastewater into a versatile material that has been the focus of research for economics reasons, environmental and technical. one of the proposed industrial wastewater for a new useful material is wastewater from the desalination process which is also known as brine water. the magnesium content in brine water is able to used as a source of magnesium for the synthesis of mg/al hydrotalcite-like compound (mg/al htlc). mg/al htlc are widely investigated for their potential applications in research and industrial processes as adsorbents, catalysts and /or catalyst precursors and pharmaceutical industry excipients. as adsorbents, mg/al htlc are receiving greater interests in the environmental community due to their high adsorption capacity. however, before using natural brine water, has conducted a preliminary study the synthesis of mg/al htlc by using artificial brine water as a model of desalination wastewater. the objective of this research is to synthesis of mg/al htlc from artificial brine water and its ability tested as a methyl orange (mo) adsorbents. the research initiated with the synthesis of mg/al htlc from artificial brine water. characterization of the mg/al htlc synthesized was confirmed through x-ray diffraction and ft-ir spectroscopy. the determination of optimum acidity, adsorption rate, and energy and capacity adsorption were studied. the result showed that ph 3 was the optimum acidity for the adsorption of mo on mg/al htlc. mo was adsorbed at first order adsorption rate of 7.30 × 10-4 s-1 on the mg/ al htlc, the adsorption capacity and adsorption energy were 4.36 × 10-5 mol g-1 and 27.54 kj mol-1, respectively. from the preparatory process and the synthesis of mg/al htlc by using artificial brine water to provide the information that the byproduct of desalination processes (brine water) which are believed to be used for the synthesis of mg / al htlc.