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M.w. Watermark Diaphragm Filter Press

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M.W. WATERMARK, L.L.C th 4660 136 Avenue, Holland, MI 49424 www.mwwatermark.com Office 616.399.8850 Fax 616.399.8860 DIAPHRAGM SQUEEZE Figure 1 Using diaphragm squeeze filter plates may result in significant additional fluid removal and/or cycle time reduction if the filter cake is compressible. In a typical filter press application, approximately 80% of the solids are pumped into the press in the first half of the cycle, with the remaining half considered the consolidation stage. With diaphragm squeeze, the cycle is shortened and the cake moisture content is reduced (see fig.1). The result is increased throughput and better liquid recovery. Adding diaphragm squeeze to a filter press requires a specialized plate stack, a squeeze water manifold, and a filter plate pressurization system. A 225psi diaphragm squeeze is recommended for most applications, which requires a high pressure filter press frame design. Typically, diaphragm plates are alternated with standard chamber plates in a “mixed pack” as shown in fig.2. Diaphragm squeeze plates also may improve cake washing efficiencies. Figure 2 3 1A 2 1B 1A/B – Squeeze Manifold 2 – Chamber Plate 3 – Diaphragm Plate Diaphragm squeeze press with “mixed pack” plate stack. M.W. WATERMARK – Resources For All of Your Water & Wastewater Needs Service • Experience • Expertise • Savings L00010-00-0813