Journal
ENVIRONMENTAL TECHNOLOGY
Volume 40, Issue 7, Pages 896-902Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2017.1410581
Keywords
BCR; electrically enhanced biological process; wastewater treatment; MBR; fouling
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Biomass concentrator reactors (BCRs) are an alternative wastewater treatment technology developed as a possible solution to membrane bioreactors' (MBRs) high construction and energetic costs. BCRs are an alternative based on the same principle of biomass retention, using a coarser filter medium instead of a membrane. A BCR-derived technology enhanced by an electric field called electrically enhanced biomass concentrator reactor (E2BCR) was developed, designed, and tested for wastewater treatment at different organic loads for a period of 100 days. The electrically enhanced reactor showed better chemical oxygen demand (COD) removal performances that the non-enhanced control reactor (90% and 84%, respectively), and a lower fouling tendency. The E2BCR proved to be more energy efficient in comparison with the control reactor in terms of energy consumption per mass of COD removed.
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