A Six Sigma Approach to Evaluating Vacuum Filtration Technologies
Abstract: This article compares three designs of vacuum belt filters (moving tray, rubber carrier belt and the BHS continuous-indexing technology). The evaluation had several stages from initial investigation, bench-top testing and finally pilot-scale testing. The BHS Continuous-Indexing Vacuum belt filter was the selected technology to replace a manually-operated filter press. The return-on-investment (ROI) calculation based upon the BHS process, operating and maintenance benefits allowed the project to be funded with a payback of less than 6 months.
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