| description |
A UASB reactor was operated combined to a membrane aerated biofilm reactor (MABR) for sulfate removal and for elemental sulfur reclamation. A commercial silicon tube was use as an oxygen delivery diffuser. The process achieved high rates of sulfide removal from liquid phase (90%). The hydrogen sulfide removal was influenced by the pH value and at pH value of 7.5, 98% of the H2S was removed. The elemental sulfur was observed in inside the membrane, with content in the biomass of 21%. 16S rRNA gene-based high throughput Illumina MiSeq sequencing was used to demonstrate the microbial community diversity and the different layers inside the silicon tube. |