| Siemens Water Technologies |
The Petro membrane bioreactor (MBR) system (photo) has been specially designed for the petroleum, petrochemical and other chemical process industries (CPI). It is a wastewater treatment process that combines various biological treatment processes with an integrated, immersed membrane system. Suited to a wide range of water treatment applications including water reuse, upgrades, retrofits and compliance-driven projects, the system offers the following features and benefits, according to the manufacturer: continuously controlled environment around the membrane system equalizes loading on each membrane bundle; positive two-phase (air and water) transfer into the fiber bundles keeps the membrane clean, extending life and reducing operating costs; cross-flow dynamics maximize scouring efficiency; small footprint; and continuous removal of oil and grease from the membrane operating environment. The automated, in-place membrane cleaning process can also mean reduced labor. — Siemens Water Technologies Corp., Warrendale, Pa.