Removal of Iron and Manganese in Acid Mine Drainage Using Natural Zeolite

Author:

Widyaningrum Sri Rahayu1,Sarto Sarto1,Prasetya Agus1

Affiliation:

1. Universitas Gadjah Mada

Abstract

The environmental problem that often occurs in coal mining is acid mine drainage which can pose a serious threat to human health, animals and ecological systems. Acid mine drainage contains heavy metal contaminants such as iron and manganese. The purpose of this study was to determine the adsorption equilibrium carried out using natural zeolite adsorbents type mordenite from Klaten, Central Java. The application of natural zeolite with a volume of 100 mL synthetic acid mine drainage with concentrations of Fe 41.97 mg/L, Mn 21.75 mg/L and variations in dose of natural zeolite (2, 4, 6, 8, and 10 grams). The highest percent removal was at a dose of 10 grams of zeolite resulted in % removal of 97.94 % for Fe and 67.81 % for Mn. The results obtained using Langmuir and Freundlich adsorption isotherms. The results followed the Freundlich isotherm model with an adsorption parameters Kf = 0.427 mg/g, R2 = 0.991, n = 1.610 Fe metal and Mn metal adsorption parameters are Kf = 0.006 mg/g, R2 = 0.9971, and n = 0.578

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference18 articles.

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3. F.P. Tshikovhi, Remediation of Acid Mine Drainage using Prawn Shells, University of the Witwatersrand, Faculty of Science, School of Geography, Archaeology & Environmental Studies, Johannesburg, South Africa, (2018).

4. I. Nurhayati, S.Vigiani, Penurunan kadar besi (Fe), kromium (Cr), COD dan BOD limbah cair laboratorium dengan pengenceran, koagulasi dan adsorpsi, Ecotrophic 14 (2020) 74–87.

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