ADSORPTION OF PB~(2+) ION IN WATER WELL WITH AMBERLITE IR 120 NA RESIN

摘要

Some people in the city of Pasuruan, East Java, Indonesia still use wells water to meet the needs of clean water. Some of the well water samples contain Pb~(2+) ion of 0.15-0.23 mg·L~(-1). This level exceeds the maximum limit of clean air requirements in Indonesia Standard Ministry of Health Regulation No. 416 of 1990, maximum Pb~(2+) ion level 0.05 mg·L~(-1). The purpose of this research is to know the adsorption efficiency of IR 120 Na amine resin on Pb~(2+) ion; The isotherm condition of Freundlich and Langmuir. The study was conducted in three stages: 1) analyzing the physical properties and chemical content of samples; 2) processing the air in a cation exchanger processing installation; 3) analyze the content of Pb~(2+) ions processed air. The results showed that Pb~(2+) ion adsorption by IR amberlite resin 120 Na was 90.87-99.57%; In the use of resin mass of 20-100 g and feed rate of 0.0208-0.0435 L·s~(-1) showed that the Pb~(2+) content of the processed air has met the standard. Adsorption of Pb~(2+) ions by isotherm with equations of Freundlich and Langmuir equations. Freudlich equation constant is n = 1.6943 and K_f = 6.9984 with result of 0.9715. Langmuir equation constant is A_s = 0.0175 and K_b = 136.8363 with research result of 0.8863.