TREATMENT SYSTEM FOR ACID MINE DRAINAGE AND TREATMENT METHOD USING THEREOF

摘要

PURPOSE: An acidic mine drainage processing system and a processing method using thereof are provided to reduce the usage amount of a neutralizing agent, by reusing the non-reactive neutralizing agent inside a neutralizing tank. CONSTITUTION: An acidic mine drainage processing system comprises the following: a first reactor(20) including a neutralization tank for forming metal precipitates by adding a neutralizing agent to acidic mine drainage; a second reactor(30) connected to the neutralization tank for receiving the acidic mine drainage with the metal precipitates, including a reaction tank for maintaining the dissolution of the non-reactive neutralizing agent inside the mine drainage to precipitate metallic ions; and a sedimentation device(50) including a sludge collector(54) for collecting sludge from the mine drainage to separate water with the sludge.