Evaluation of a Full Scale Hybrid Sequencing Batch/Membrane Bioreactor for Onsite Treatment of Domestic Wastewater

A full-scale pilot hybrid sequencing batch membrane bioreactor (SBR-MBR) wastewater treatment system is being tested at the Colorado School of Mines (Golden, Colorado). The pilot system was developed by Aqua-Aerobic Systems, Inc. (AAS, Rockford, Illinois). The preliminary objective of the pilot study is to assess the economic and technical feasibility of using the SBR-MBR process as a sustainable onsite and decentralized approach for wastewater treatment. The reliability and robustness of the biological treatment is also being evaluated over a variety of challenging influent and environmental conditions. Process optimization is underway to reduce energy, carbon, and chemical requirements. Preliminary results from system startup operation of the SBR-MBR system (since February 2009) are presented and accompanied by a discussion of process requirements and economic considerations.