Polymeric Membranes With Sufficient Thermo‐Mechanical Stability to Deploy Temperature Enhanced Backwash

Chemie Ingenieur Technik, vol. 93, pp. 1417–1422

Abstract

Abstract The alternative membrane cleaning method Temperature Enhanced Backwash exploits elevated temperatures of typically 125 °C to realize high shear rate. This exceeds usual operating temperatures by far. Therefore, the thermo‐mechanical properties of polymeric membranes were investigated. A repeated load cycle testing was suited and sensitive to detect the failure of membrane material and potting. All tested PES membranes showed to be stable during the repeated load cycle testing. The potting adhesive may be decisive, thus, a tensile test at 125 °C is proposed.

Authors 5

1. Benedikt M. Aumeier corresponding Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University Aachener Verfahrenstechnik Chemical Process Engineering Forckenbeckstraße 51 52074 Aachen Germany

   RWTH Aachen University Institute of Environmental Engineering Mies-van-der-Rohe Straße 1 52074 Aachen Germany (current address)

2. Fabian Vollmer Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University Aachener Verfahrenstechnik Chemical Process Engineering Forckenbeckstraße 51 52074 Aachen Germany

3. Simon Lenfers Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University Aachener Verfahrenstechnik Chemical Process Engineering Forckenbeckstraße 51 52074 Aachen Germany

4. Süleyman Yüce Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University Aachener Verfahrenstechnik Chemical Process Engineering Forckenbeckstraße 51 52074 Aachen Germany

5. Matthias Weßling Aachen

   DWI – Leibniz Institute for Interactive Materials · RWTH Aachen University

   Affiliation as printed

   DWI Leibniz Institute for Interactive Materials Forckenbeckstraße 50 52074 Aachen Germany

   RWTH Aachen University Aachener Verfahrenstechnik Chemical Process Engineering Forckenbeckstraße 51 52074 Aachen Germany