DEVELOPMENT OF ACID MINE DRAINAGE BIOREMEDIATION TECHNOLOGY USING SULFATE-REDUCING BACTERIA

• Main Author: Maulana Dzulqornain, Arsyad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/46349
• Institution: Institut Teknologi Bandung

Acid mine drainage is a waste produced in mining process that is formed because minerals in the ground come in contact with oxygen. The oxidation process releases dissolved metals, such as Cu (II), Zn (II), and Mn (II). Furthermore, minerals containing sulfur will release sulfate in high concentration that makes the pH of the acid mine drainage become low. One of acid mine drainage method developed nowadays is passive treatment, by using organic matter containing sulfate-reducing bacteria naturally. This research is purposed to determine the best organic matter to be used in passive treatment. Ten reactors is used in this research. Three organic matters are tested, that is merbau sawdust, rice husk, and cassava. There are three variation for each organic matters, that is pure organic matter, organic matter mixed with compost, and organic matter mixed with compost and Citrobacter youngae SKC-4. The last reactor is used for acid mine drainage added with Citrobacter youngae SKC-4 as parameter. The acid mine drainage flow through reactors downlow. The paramaters tested include pH, which is measured every 3 days, and sulfate, Cu (II), Zn (II), Mn (II) concentration wich is measured every 7 dasys. Measurement is also done in day 0 after 10 minutes contact with the organic matters. The graphs obtained soes that the decrease in concentration of Cu (II), Zn (II), and Mn (II) occurred significantly in the first 10 minutes due to adsorption. The increase of pH and the decrease of Cu (II), Zn (II), and Mn (II) are best for merbau sawdust, while the decrease of sulfate concentration is best in rice husk. The addition of Citrobacter youngae SKC-4 do not have any significant effect.