Sponge membrane bioreactor (Sponge-MBR) has been proposed as an effective process to
eliminate organic matters, nitrogen compounds and control fouling for domestic and hospital
wastewater treatment. However, tannery wastewater with extremely organics and salt
concentrations poses a great threat to the stability of biological treatment processes, rapidly
increasing fouling and cost of physio-chemical treatment. This study examined the
performance of Sponge-MBR to treat real tannery wastewater under organic loading rates of …