Real-time management of odour on water treatment plant using a 3D simulation tool coupled to on-site sensors

Abstract

Odours are a major nuisance near industrial sites such as waste water treatment plants. To be able to forecast and to follow in realtime the dispersion of smells around the plant would be a major improvement with respect to neighbours relation as well as the site management and planning. In such a context, the SIAAP, which deals with waste water for the entire region of Paris, France, has developed and implemented on their sites of Seine aval, Marne aval and Seine amont an innovative tool called SYPROS. SYPROS is based on the 3D CFD dispersion tool Fluidyn-PANEIA using a Lagrangian puff model for the real-time procedure and a source definition module to determine the source emission rates in real-time (i.e. with a 30 minute delay in continuous mode). To this end the concept of real-time adjustment of the source emission, the so-called remapping process, has been implemented. A case study of the implementation of the comprehensive tool SYPROS on the Seine aval site is described.