Koch Membrane Systems PURON® MBR Product Selected for one of the Largest MBR Projects in China. Koch Membrane Systems, Inc. (Koch), a global leader in membrane filtration technologies, announced today its PURON® Membrane Bio-Reactor (MBR) modules have been selected for the Ji’nan Wastewater Treatment Plant I and Plant II Expansion Project. Each plant will have 100,000 m3/day treating capacity. The site is located in the Shandong province, which is China’s second-most populated province, with over 100 million people. This project continues the strong presence of Koch’s PURON® MBR in various municipal and industrial wastewater treatment projects in China, demonstrating exceptional performance and creating value to clients. (LINK). HIWI042018-06-25T23:02:52+02:00