Technology News 407A - passive mine drainage treatment systems.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, TN 407A, 1994 Jun; :1-4
Objective: Provide a low-cost, low-maintenance method for improving mine water quality on abandoned mine land (AML) sites. Approach: A model (figure 1) is presented for selecting, designing, and sizing one or several passive mine drainage treatment systems that can be used in remediation of AML. The three principal types of passive mine drainage technologies for the treatment of coal mine drainage are an aerobic system, a compost wetland, and an anoxic limestone drain. The multistep approach presented here provides a simplified method to characterize the type and magnitude of the water quality problem and then to select either a single treatment system or a combination of treatment systems to address the specific site situation. Benefits: The prime benefit to be derived from using these treatment systems is the ability to significantly improve water quality at AML sites. In addition, these treatment systems have low maintenance requirements and are more economical than conventional treatment with chemical additives. Applications: Passive mine drainage treatment systems are applicable to any acid or alkaline mine drainage situation. The only constraint is the available area in which to place the selected system.
Mining-industry; Coal-mining; Waste-treatment; Environmental-contamination; Environmental-pollution; Environmental-health
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines,TN 407A