The present study describes the development of a new type of aerated membrane bioreactor referred to as a biologically activated membrane bioreactor (BAMBi) for on-site treatment of high-strength wastewater. The treated wastewater is reused for flushing and personal hygiene. BAMBi is an adaptation of a gravity-driven membrane reactor, originally developed for the purpose of treating river water to drinking water quality. Initially, a series of reactor configurations were tested and it was found that the simplest possible configuration could treat the wastewater to an acceptable standard, provided that a polishing step for color removal and disinfection was introduced. A commercial electrolysis unit was utilized for polishing. The energy consumption of BAMBi is 0.8 kWh/m3 of water treated, which can be considered low for an on-site membrane bio reactor application.
An energy-efficient membrane bioreactor for on-site treatment and recovery of wastewater
Rahel Künzle, Wouter Pronk, Eberhard Morgenroth, Tove A. Larsen; An energy-efficient membrane bioreactor for on-site treatment and recovery of wastewater. Journal of Water, Sanitation and Hygiene for Development 1 September 2015; 5 (3): 448–455. doi: https://doi.org/10.2166/washdev.2015.116
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