The generation of odours in a WWTP is usually caused by the presence of hydrogen sulphide (H₂S). This gas, moreover, is responsible for the deterioration of the facilities’ materials and involves a health hazard for plant operators. Currently there are several alternatives that allow decreasing the impact of odours associated with H₂S.

   This paper presents some techniques focused on management of odours in WWTPs as a result of the experience of DAM as WWTP Manager: experiences of removal of H₂S in collectors, deodorization of a WWTP by the injection of confined air in the anoxic biological reactor of the sludge line, studies at pilot scale for the application of a TECNIUM’s biofilter percolator, a photo-ionization for the treatment of air streams, and ozone plus ultrasound for the treatment of liquid streams.

L. Sauco¹, J.E Sánchez-Ramírez¹ ,L. Pastor1, E. Morales¹, S. Doñate¹, L. Otegi²

¹ Depuración de aguas del mediterráneo (DAM). Dpto I+D+i. Av Benjamín franklin 21- 46980 Valencia-España (Paterna). Tel: 902.881.510 – www.dam-aguas.es. Email: lidia.sauco@dam-aguas.es

² Tecnium-Casals Cardona Ind. S.A.- Calle Ferrán Casablancas, 24. 08243 Manresa (Barcelona). Tel: 93.874.84.80 – www.tecnium.es. Email: tecnium@tecnium.es

   Yesterday, we were informed by the CEN that the 15th on November 2017 Dr. Thomas Hübert passed away after a very short illness. Dr. Thomas Hübert worked at the Federal Institute of Materials Research and Testing (BAM) and he was member of several groups dealing with instrumental odour monitoring such as the Working Group (WG) 41 of the Technical Committee 264 of the CEN.

   Dr. Hübert was activily involved in the WG41 and he was also the coordinator of the German mirror group. The picture on the left was taken in Berlin in August last year, during the last meeting of the WG. Dr. Hübert (in the middle) was a very active person and he took part on many decisions of this group. It is a great loss for his family and friends and also for the "odour" family.