ANALISIS SENG(Zn), KROM (Cr) DAN KOBAL (Co) PADA SEDIMEN KOLAM INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) TPA MUARA FAJAR PEKANBARU

Abstract

The advantages of sediment that formed by leachate water precipitation n waste reservoir ponds could be determined through analysis of metal content which ere obtained from decomposition process of garbage piles. The sediment samples were, collected from TPA Muara Fajar Rumbai-Pekanbaru, from four ponds and eight sampling points were then choosen from each pond. All samples were destructed by adding nitric acid (HNO3 1:1) and chloride acid (HCl 1:1), to analyze the content of heavy metals, and then measured by using UV-Vis spectrophotometer for Cr content, atomic absorption spectrophotometer was used for Co and Zn content. Our results showed that four samples contained Cr and Zn with different concentrations while Co was not detected. Zn content of sediment samples were ranged between 0.5899 to 0.6625 mg/g while Cr content was ranged between 0.1363 to 0.4029 mg/g. These results showed that the sediment could be used as a fertilizer for city ornament plants .