Pemanfaatan Precipitated Calsium Carbonate (PCC) Dari Limbah Cangkang Kerang Darah (Anadara Granosa) Sebagai Adsorben Pengolahan Air Gambut

Abstract

Peat water is surface water which has a dark brown to black, has a very high organic content, and acidic. There are negative effects if used directly and continuously without processing. This is because in the peat water was found humic acid
compound that makes the peat water has these characteristics. One effort to decrease the concentration of humic acid is through adsorption method. The adsorbent that usded was precipitated Calisum Carbonate (PCC) which originate from waste shells
blood.Variable that was given in this research consisted by mass variation PCC 1, 3, 5, and 7, the stirring speed of 50, 100, and 150 rpm and a contact time of 15, 30, 45 and 60 minutes. The maximum state was reached on the mass of PCC 5 grams, stirring speed of 150 rpm, and a contact time of 30 minutes with the adsorption efficiency of 99.86% . Decreasing concentration of adsorption of organic substances (humic acid) of 1450 mg / L to 2,07 mg / L. From this research PCC is able to adsorb
organic substances (humic acid) so that the results that was obtained accordingly with some parameters PERMENKES 416 / Menkes / PER / IX / 1990.
Keywords: Adsorptiodn, Peat Water, Shells of mussels blood, PCC