In recent years, single-stage partial nitritation/anammox process emerged as a sustainable solution for nitrogen removal from industrial wastewater. However, the process application often requires case-specific adaptation. In the present study, process application as a decentralized treatment to digital textile printing wastewater was assessed. The biomass was inoculated in a lab-scale reactor and progressively acclimated until reaching the target loading rate. The experimental campaign was characterized by the occurrence of biomass inhibition phenomena causing process instability. At quasi-stable conditions, total nitrogen removal was in compliance with regulations on discharge in the public sewer (100 mgN/L). Process modelling could simulate experimental data, also indicating its importance for process monitoring and control practices.

Partial nitritation/anammox process treating digital textile printing effluent: lab-scale experimental and modelling trial

S. Visigalli;M. Jia;G. Bellandi;A. Turolla;M. Bellucci;G. Menin;R. Canziani
2021-01-01

Abstract

In recent years, single-stage partial nitritation/anammox process emerged as a sustainable solution for nitrogen removal from industrial wastewater. However, the process application often requires case-specific adaptation. In the present study, process application as a decentralized treatment to digital textile printing wastewater was assessed. The biomass was inoculated in a lab-scale reactor and progressively acclimated until reaching the target loading rate. The experimental campaign was characterized by the occurrence of biomass inhibition phenomena causing process instability. At quasi-stable conditions, total nitrogen removal was in compliance with regulations on discharge in the public sewer (100 mgN/L). Process modelling could simulate experimental data, also indicating its importance for process monitoring and control practices.
2021
IWA EcoSTP 2021
decentralized wastewater treatment
Industrial wastewater
nutrient removal
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1196830
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