Steward can perform field tests at the client site using one of our proprietary filter system test skids. The skids are available in 10; 2; or 0.25 gallon per minute (gpm) flows.

The filter systems operate on the principle of using cascading or serially connected cells. The number of required cells is determined by how many are needed to achieve the target mercury reduction. Each cell will have effluent entering the contactor tank from the previous cell with a membrane recirculation system to ensure the SAMMS® remains within the cell. The output of the final cell is discharged to the point specified by the client. This is reflected in Figure 1 below.

Figure 1. Schematic representation of the four cell test skid

The test skids are modular in design. Each contactor tank and membrane recirculation is on a separate leveling platform which is approximately 4’x4’. The overall footprint is approximately 10’x15’ but requires a slightly larger area to accommodate the operations and maintenance of the system. The overall height of the test skid is approximately 10’.


(Left photo represents 10 or 2 gpm skids, while right photo represents 0.25 gpm skid)

If you would like to discuss a field test, please contact us.