MBR isn't a driven pressure process like as RO. It's a UF membrane that can't reject dissolved salts (TDS). Normally with size pore in range 0,1-0,04 micron. When you are passing activated sludge trough MBR you can't expect a change in TDS.
Published by jorge eduardo rodriguez rojo, AEMA - CHEMICAL ENGINEER WATER/WASTEWATER EXPERT
MBR isn't a driven pressure process like as RO. It's a UF membrane that can't reject dissolved salts (TDS). Normally with size pore in range 0,1-0,04 micron. When you are passing activated sludge trough MBR you can't expect a change in TDS.