Analisa Logam Berat Timbal, Besi, Kadmium dan Zinkum dalam Lindi Hitam (Black Liquor) pada Industri Pulp Proses Kraft dengan Menggunakan Metode Spektrofotometri Serapan Atom (SSA)

Abstract

Pulp is made by dissolving wood with NaOH and Na2S solutions which produced is called black liquor. Black liquor containing metals which come from woods and chemicals. There is a need for measure their concentration because the liquor will produce wastes after undergoing several steps. The analyses of the metals Lead, Copper, Cadmium and Zink were carried out by absorption Spectrophotometric methods with graphite furnace. And the results of the analyses were Lead, Copper, Cadmium and Zink respectively 3,1625 ppm, 6,3302 ppm, 3,4816 ppm and 1,4963 ppm.