Evaluation of biomass activity and wastewater characterization in a UCT-MBR pilot plant by means of respirometric techniques

摘要: Abstract Over the last two decades, Membrane Bioreactors (MBRs) emerged even more for wastewater treatment, ensuring high removal efficiencies as well very small footprint requirements. Indeed, in this kind of process, a modification biomass activity and viability can exist compared to that CAS process. In context, respirometric analysis represents reliable tool order evaluate actual kinetic parameters, insert mathematical models design phase, monitor viability, especially when these processes are operated with SRT values. The paper presents some results techniques applied characterisation pilot UCT-MBR plant nutrient removal, operating SRT. particular, tests were specifically aimed at investigating heterotrophic autotrophic bacterial activity. was built Palermo WWTP consisted three reactors: anaerobic, anoxic aerobic, followed by an aerobic compartment containing submerged hollow fibre membrane modules typical recycling lines. parameters bacteria resulted lower respect CAS; regarding nitrifying bacteria, constants range CAS, suggesting good nitrification