Urban experiences in the management of odors on Wastewater Treatment Plants

on .

sauco   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:

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

Treatment of emissions generating annoying odours in a turkey by-products processing plant

on .

GAroca   The processing of meat by-products for the production of protein meals entails the generation of gaseous emissions causing annoying odours that cause a severe environmental impact in the surrounding populations.

   This work presents the characterization of the main components of the process emissions, the dimensioning of the treatment system and the results of the operation of a rendering plant of turkeys, where fractions, such as viscera, blood, feathers, as well as seizures and discards, are processed to produce flour and oil for animal feed. This plant has a processing capacity of 8 million turkeys per year and a projection of 12 million.

G. Aroca1, M. Cáceres1, G. Norambuena3, F. Rosenkranz2, R. Chamy2, J. Dumont3

1 Escuela de Ingeniería Bioquímica, P. Universidad Católica de Valparaíso, Chile
2 Núcleo Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Chile
3 Sopraval SA., Nogales, La Calera, Chile
, +56 32 2372011

Biogas treatment with recovery of nutrients from centrate in an outdoors high rate algal pond through algae-bacteria systems

on .

D_Marin   The upgrading of biogas coupled with centrate treatment was evaluated in an outdoors photobioreactor interconnected to an absorption column of CO2 and H2S from September to December 2016.

   The maximum recorded CH4 concentration in the biomethane was 94%, with total removal of H2S and removal efficiencies of CO2 ranging from 70% to 90% depending on the environmental conditions.

 

D. Marín, E. Posadas, R. Lebrero, R. Muñoz

Departamento de Ingeniería Química y Tecnología del Medio Ambiente. Universidad de Valladolid. C/ Real de Burgos, s/n, Sede Doctor Mergelina. CP 47011 - Valladolid

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