Projekt Prize Project Prize Multistage Membrane Based Concentration of thin solutions Judith Ecker Michael Harasek jecker@mail.zserv.tuwien.ac.at, mharasek@mail.zserv.tuwien.ac.at

Multistage Membrane Based Concentration of thin solutions Project Prize Multistage Membrane Based Concentration of thin solutions From the problem to the solution Idea Lab Experiments Process development – Austrian Patent AT 508.549 (2011) Basic Engineering Detail Engineering Design Process control Long term experiments with different solutions

Conventional thermal concentration Project Prize Conventional thermal concentration Energy intensive Thermal degradation of the ingredients Impoved membrane based process Intelligent recycling of permeates for process optimisation Mild production No thermal degradation Multistage Membrane Based Concentration of thin solutions Process Energy consumption Energy Savings Primary Energy Savings kWh % MJ/kWh Evaporator 9296 84 % 59.4 Membrane + Evaporator 503 + 996

Multistage Membrane Based Concentration of thin solutions Project Prize Multistage Membrane Based Concentration of thin solutions Fig.1: Flowsheet Fig.4 realised pilot plant Fig.3: 3D-plan Fig.2: realised pilot plant

Multistage Membrane Based Concentration of thin solutions Project Prize Multistage Membrane Based Concentration of thin solutions Usages Concentration of sugar solutions fruit juice sorghum solutions starch solutions