Ceramic nanofiltration membranes were successfully tested and piloted for the treatment of oily and salty water from oil sand mining in Alberta, Canada. The membranes showed a stable behavior over two years operation. The complete removal of suspended solids as well as the reduction of multivalent ions enable the use of recycle water from tailing ponds to prepare boiler feed water. In high salt concentration like waste water from potash mining a dependency of salt retention on the salt composition and concentration was observed. High MgSO4 retention even at high salt concentration was achieved.

Auf der ACHEMA 2018 war erneut eine Vielzahl an Firmen vertreten, die in der Membranentwicklung, ‐herstellung und/oder im Membrananlagenbau tätig sind. In den Bereichen Applikation, Membraneigenschaften und Kombination von verschiedenen Trennverfahren findet eine stetige Entwicklung statt. Es wird ein Überblick über aktuelle Trends und (Neu‐)Entwicklungen gegeben, die u. a. von neuen Polymermembranen zur Gastrennung über neue geometrische Strukturen zur Vergrößerung der Oberfläche keramischer Membranen bis zur Oberflächenmodifikation bspw. mittels Hydrophobierung der Membranen reichen.

New value‐adding applications of spent grain, a co‐product of brewhouse operations, are considered in the context of a sustainable circular economy. Previous studies have focused on the compounds remaining in the solid phase of the spent grain. However, depending on the dewatering process, the separated water also contains relevant fractions of nutritionally and physiologically valuable compounds including proteins, carbohydrates and polyphenols. Accordingly, the work reported here considers the two fractions and presents a detailed view of relevant substances especially those from liquor. The reported mass balance is the result of these investigations, supplemented by values from the literature. The potential value of these compounds for industrial biotechnology is examined in an economic assessment. © 2022 The Authors. Journal of the Institute of Brewing published by John Wiley & Sons Ltd on behalf of The Institute of Brewing & Distilling.