
Wehrle's ultrafiltration (UF) membrane systems are both an integral part of their membrane bioreactor (MBR) systems as well as a separate process that can be used to reduce the concentration of suspended materials where appropriate in a variety of industrial effluent treatment applications such as dairy, food, drink and chemicals processing.
Wehrle's UF systems are designed as modular units, which can be extended with additional membrane modules. A variety of configurations and materials are available, allowing the most technically appropriate and economical system to be created for each project.
Wehrle’s highly efficient UF systems typically retain solids and molecules larger than 0.02 µm. Effluent enters a stainless steel header system feeding dedicated stainless steel recirculation pumps and membrane modules arranged in series. Each UF module contains in excess of three hundred and fifty 8mm diameter polymeric membrane tubes. The effluent is pumped along the membrane surface at high velocity ensuring adequate turbulence, minimising membrane fouling and enhancing cleaning efficiency. Permeate is removed through the membrane wall, which provides an absolute barrier, producing permeate free from bacteria and suspended solids.
Systems are supplied either skid mounted for integration into an existing building or as stand-alone containerised systems, which are pre-installed and tested prior to delivery to site thus reducing installation and commissioning time.
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