Siemens Approves Meidensha Membrane For PACT MBR

Dec. 9, 2016
Siemens Water Solutions will use Meidensha Corporation’s ceramic flat-sheet membrane in its new PACT Membrane Bioreactor for wastewater treatment.

Exterior of ceramic flat-sheet membrane

Siemens Water Solutions will reportedly use Meidensha Corporation’s ceramic flat-sheet membrane in its new PACT Membrane Bioreactor (MBR) for wastewater treatment in the oil refinery and petrochemical industries, and other wastewater treatment environments. Siemens PACT technology has reportedly been installed at more than 100 locations.

Siemens’ PACT MBR is a powdered activated carbon-based wastewater treatment system that provides biological/physio-chemical/and ultrafiltration technology in a single, compact system, according to Meidensha. After extensive testing, Siemens approved Meidensha’s ceramic flat-sheet membrane for use in its PACT MBR system because of the membrane’s durability, abrasion resistance and long service life characteristics compared to conventional polymeric membranes typically used in membrane bioreactors, according to Meidensha.

The ceramic flat-sheet membrane reportedly has a number of fine holes (pores) that cannot be seen by the naked eye. When wastewater passes through the holes, impurities are filtered out, producing clean water. The 6-millimeter-thick ceramic flat-sheet membrane has a hollow structure; filtered clean water is gathered via water-collecting channels and transported out of the membrane.

Siemens Water Solutions PACT MBR can reportedly result in up to 50% savings in footprint compared to approaches to achieve reusable quality water that employ conventional biological treatment, ultrafiltration (UF) and carbon adsorption technologies, according to Meidensha. The effluent quality produced is virtually free of suspended matter, and low in organic and other contaminants, allowing end users to implement sustainable water reuse programs.

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