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Pàgina inicial > Articles > Articles publicats > Development and economic assessment of different WWTP control strategies for optimal simultaneous removal of carbon, nitrogen and phosphorus |
Data: | 2013 |
Resum: | This paper presents the comparison of four control strategies for the A²/O WWTP configuration for simultaneous C, N and P removal. The control strategies: (i) external COD-P control; (ii) external recycle flow-P control; (iii) nitrate control in the last anoxic reactor; (iv) ammonia control in the last aerobic reactor, were combined with other common control loops to build different control structures and were simulated in Matlab/Simulink under different influent conditions. A systematic approach was conducted with all the strategies to assess their potential effectiveness, according to the following steps: theoretical design, setpoint optimization and, finally, a detailed comparison of the control results against a reference operation and an optimized reference scenario. The optimization of the reference operation presented a 7% reduction of the total operational cost. The simulation results showed that some control strategies further reduced 3-7. 5% the WWTP operational costs while the effluent quality is greatly improved. |
Ajuts: | Ministerio de Ciencia e Innovación CTM2010-20384 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-815 |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | A2/O ; EBPR ; Control ; Optimization ; WWTP ; MPC |
Publicat a: | Computers and chemical engineering, Vol. 53 (June 2013) , p. 164-177, ISSN 0098-1354 |
Post-print 46 p, 1.8 MB |