Traditional treatment of acid rock drainage consists of pH adjustment, clarification, and sand filtration. Then the pH is adjusted back to a normal range and the effluent is discharged. These operations are prone to clarifier upsets and filter clogging. A ceramic MF membrane was used to replace the clarifier and sand filter. This membrane was operated in a cross flow mode of operation with a high cross flow velocity of 10-20 feet per second. This cross flow provided scouring effects that helped prevent membrane fouling. The ceramic MF membrane proved to be a reliable and cost effective method of treating the acid rock drainage stream.
This presentation is available to AMTA Members only.
- Dustin Klempel, PE
- CDM Smith Inc.
- AMTA Annual Meeting, San Diego, CA
- San Diego Biennial
- Acid Rock Drainage, Microfiltration