In this study different scenarios were scrutinized to minimize the energy consumption of a membrane bioreactor system for wastewater treatment. Open-loop and closed-loop scenarios were investigated by two-step cascade control strategies based on dissolved oxygen, ammonia and nitrite concentrations. An integrated MBR model which includes also the greenhouse gas formation/emission processes was applied. A substantial energy consumption reduction was obtained for the closed-loop scenarios (32% for Scenario 1 and 82% for Scenario 2). The air flow control based on both ammonia and nitrite concentrations within the aerobic reactor (Scenario 2) provided excellent results in terms of reduction of operating cost reduction (64%), direct (10%) and indirect (81%) emissions.

Mannina G., Cosenza A., Reboucas T.F. (2020). Aeration control in membrane bioreactor for sustainable environmental footprint. BIORESOURCE TECHNOLOGY, 301(1), 122734 [10.1016/j.biortech.2020.122734].

Aeration control in membrane bioreactor for sustainable environmental footprint

Mannina G.;Cosenza A.;
2020-01-01

Abstract

In this study different scenarios were scrutinized to minimize the energy consumption of a membrane bioreactor system for wastewater treatment. Open-loop and closed-loop scenarios were investigated by two-step cascade control strategies based on dissolved oxygen, ammonia and nitrite concentrations. An integrated MBR model which includes also the greenhouse gas formation/emission processes was applied. A substantial energy consumption reduction was obtained for the closed-loop scenarios (32% for Scenario 1 and 82% for Scenario 2). The air flow control based on both ammonia and nitrite concentrations within the aerobic reactor (Scenario 2) provided excellent results in terms of reduction of operating cost reduction (64%), direct (10%) and indirect (81%) emissions.
Settore ICAR/03 - Ingegneria Sanitaria-Ambientale
Mannina G., Cosenza A., Reboucas T.F. (2020). Aeration control in membrane bioreactor for sustainable environmental footprint. BIORESOURCE TECHNOLOGY, 301(1), 122734 [10.1016/j.biortech.2020.122734].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/430946
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