All the papers from the IV International Conference on Environmental Odours and VOCs Management, that took place in Valladolid, Spain, have been published during the years 2017 and 2018.

   This time, the Conference was organized by the website Olores.org and the Department of Chemical Engineering and Environmental Technology of the University of Valladolid (UVa) with the help of the International Association of Environmental Odour Managers (AMIGO) and within the frame of the CONSOLIDER NOVEDAR network. This fourth International Conference on Environmental Odours and VOCs Management took place the 20 and 21 of september 2017, at the Conde Ansúrez Congress Palace in Valladolid, Spain.

    Here there are all the papers published beforehand in just one document. The following list includes the links to the papers presented and published during the last months. Most of them are in Spanish, but some of the authors have fortunately translated their papers to English:

• Session I: Odour formation in the Environment. Odour legislation, norm and regulations.

1. MANAGEMENT OF ODOURS IN CHILE, HOW FAR HAVE WE PROGRESSED? D. Caimanque, Ministry of Environment Chile. (Read the full article in Spanish here)

2. SUMMARY OF ODOUR REGULATIONS IN SEVERAL PARTS OF THE WORLD. A WORK OF 14 INTERNATIONAL EXPERTS. A. Bokowa , C. Diaz and C. Izquierdo, J. A. Koziel, M. Mcginley, J. Barclay, G. Schauberger, J.M. Guillot, R. Sneath, L. Capelli, V. Zorich, I. Bilsen, A.C. Romain, M. C. Cabeza. (Read the full article in Spanish here)

3. CONSIDERATION OF ODOR EMISSIONS IN THE INTEGRATED ENVIRONMENTAL PERMITS OF CASTILE AND LEON. J. Fernández, M. Rodríguez, D. León, Government of Castile and Leon. (Read the full article in Spanish here)

4. REQUIRED REGULATIONS FOR THE ACCREDITATION OF A DYNAMIC OLFATOMETRY LABORATORY IN COLOMBIA. J. Cardona, E.Ramirez, GSA S.A.S. (Read the full article in Spanish here)

5. THE PROBLEM OF ODOURS IN ENVIRONMENTAL AUTHORISATIONS. N. Garcia-Borreguero, J. Martiarena and P. Uriarte, Basque Government. (Read the full article in Spanish here)

• Session II: Calculation of the odour impact. Field inspections, field olfactometry. Odour perception.

1. HOW TO SET AN ODOUR MANAGEMENT SYSTEM. M. Andresen, Olfasense GmbH. (Read the full article in Spanish here)

2. INTERNAL ODOUR MANAGEMENT IN A REFINERY LOCATED NEAR URBAN AREAS. R. Oreka, R. Vadillo, Petróleos del Norte S.A. (Watch the video in Spanish here)

3. ODOURCOLLECT, A CITIZEN SCIENCE EXPERIMENT TO CREATE COLLABORATIVE ODOR MAPS. R. Arias Álvarez, Environmental researcher; F. Serrano Sanz, Ibercivis Foundation. (Watch the video in Spanish here)

4. GROUP ANALYSIS OF ODOUR IMPACT. D. Granellt, Villena City Council; J.M. Felisi, MESURA Association. (Read the full article in Spanish here)

5. COMPARISON BETWEEN APPLICATION OF QUESTIONNAIRE (VDI 3883) AND ANALYTICAL MEASUREMENT OF TRS (TOTAL REDUCED SULPHUR COMPOUNDS). A. Ulloa, M. Zacarías, Besten S.A. (Read the full article in Spanish here)

6. DESIGN OF A PLAN TO REDUCE THE IMPACT OF OFFENSIVE SMELLS AT THE RAW MATERIAL STORAGE UNIT OF A OF SOAP FACTORY. J.E. Rincón, B.I. Delgado, University of Francisco José de Caldas; E.G. Pinilla, Jabones El Tigre y Roca S.A. (Read the full article in Spanish here)

7. HOW TO DETERMINE THE SOURCES OF BAD ODOURS? BENEFITS OF OPERATIONAL CONTROL FOR ENVIRONMENTAL RISK IN THE INDUSTRY THROUGH PREDICTIVE DIGITAL PLATFORM. A. V. Harreveld, L. Rodríguez, E. Pagans Odournet S.L. (Read the full article in Spanish here)

• Session III: Odourants , VOCs and GHGs abatement techniques (part I)

1. MINIMISATION AND ABATEMENT OF ODORS BY PHYSICO-CHEMICAL TREATMENTS. Esther Vega, Universidad de la Santísima Concepción; María Martin, LEQUIA. (Read the full article in Spanish here)

2. ADVANCED METHODS AND NANOTECHNOLOGY FOR THE EFFICIENT TREATMENT OF ODORS IN INDUSTRIAL PROCESSES AND WASTEWATER TREATMENT. M. Calzada, E. Campos, D. Zarzo, P. Terrero, VALORIZA AGUA; E. Ortiz, KHAlacant Innova; J.A. García, B. Calderón, A. Fullana, D. Prats, University of Alicante. (Read the full article in Spanish here)

3. BIOGAS TREATMENT WITH RECOVERY OF NUTRIENTS FROM CENTRATE IN AN OUTDOORS HIGH RATE ALGAL POND THROUGH ALGAE-BACTERIA SYSTEMS. D. Marín, E. Posadas, R. Lebrero, R. Muñoz, University of Valladolid. (Read the full article in Spanish here)

4. ODOURS REDUCTION USING OZONE IN THE EMISSION OF A RENDERING PLANT. E. González, J. Mínguez, Oxicrew S.L. (Read the full article in Spanish here)

5. USING PROPULSION SYSTEMS TO IMPROVE ATMOSPHERIC DISPERSION FROM DIRECTED EMISSION SOURCES IN A CHEMICAL INDUSTRY PLANT. A. Amo Peña, J. M. Juárez Galán, R. Cerdá Ortiz, Labaqua S.A. (Read the full article in Spanish here)

6. PASSIVE DEODORIZATION IN CONFINED AREAS OF SEWAGE PLANTS. J.L. Recaj, J. Balfagón, ALPHACHEM S.L. (Read the full article in Spanish here)

7. VENTILATION AND AIR TREATMENT DESIGN GUIDE FOR WWTPs. A. López Etxebarria, A. Estiballes, Consorcio de Aguas Bilbao Bizkaia; M. Villamediana, Suez. (Watch the video in Spanish here)

8. PROTEINS AND FREE AMINOACIDS FROM MICROALGAE SUITABLE FOR GAS DEPURATION J.A. Callejo, M. Ramírez, J. Bolívar, D. Cantero, A. Valle, University of Cádiz (IVAGRO). (Read the full article in Spanish here)

• Session IV: Calculation of the odour impact. Odour dispersion modelling

1. EVALUATION OF THE ODOROUS IMPACT AND MONITORING OF THE COMPOSTING PROCESS OF DIFFERENT RAW MATERIALS M. Toledo, M.C. Gutiérrez, A.F. Chica, J.A. Siles, M.A. Martín, University of Córdoba. (Read the full article in Spanish here)

2. MONITORING BY DYNAMIC OLFACTOMETRY AND ODORS DISPERSION MODELS OF RESIDUAL WASTE TREATMENT PLANT AND DISPOSAL SITES IN COLOMBIA J. Cardona, J. Sierra , L. Arias , J. Álvarez, GSA S.A.S. (Read the full article in Spanish here)

3. COMPARISON BETWEEN APPLICATION OF QUESTIONNAIRE (VDI 3883) AND ANALYTICAL MEASUREMENT OF TRS (TOTAL REDUCED SULPHUR COMPOUNDS) A. Ulloa, M. Zacarías Besten S.A. (Read the full article in Spanish here)

4. ANALYSIS OF ODOUR EPISODES THROUGH DISPERSION MODELLING, FIELD OLFACTOMETRY AND CITIZENS’ COMPLAINTS NEAR A PAPER-MILL. V. Valdenebro, E. Sáez de Cámara, G. Gangoiti, L. Alonso, J. A. García, M. de Blas, M. Navazo, University of the Basque Country; J. Lavín, Sociedad Española de Abastecimientos, S.A.; N. García-Borreguero, Basque Government. (Read the full article in Spanish here)

5. MANAGEMENT OF ODOUR EPISODES BY MEANS OF SOCIAL PARTICIPATION AND RETROTRAJECTORY CALCULATIONS. P. Ramos, CTQC; Tarragona, D. Cartelle Fernández, Troposfera Soluciones Sostenibles, University of Santiago de Compostela, C. N. Díaz, PrOlor. (Read the full article in Spanish here)

6. SULFIDE MODELING IN SEWER SYSTEMS. R. Mateos, J. Chambó, Sewervac Ibérica S.L. (Read the full article in Spanish here)

• Session V: Electronic devices for gases and odourant detection. Odourant s and VOCs monitoring techniques.

1. OPERATIONAL CONTROL BY O-SENSORS TO PREVENT COMPLAINS. H. Vergara, M. J. Bravo, V. Zorich, Ecometrika. (Read the full article in Spanish here)

2. DEVELOPMENT OF PERSONAL ELECTRONIC NOSE FOR SMARTPHONES FOR THE MEASUREMENT OF ODOURS IN THE ENVIRONMENT. J. Lozano, P. Arroyo, J. I. Suárez, J. L. Herrero, University of Extremadura; J. P. Santos, M. Aleixandre, ITEFI-CSIC. (Read the full article in Spanish here)

3. GC-IMS: RAPID AND SENSITIVE TECHNIQUE FOR THE ANALYSIS OF ODOUR VOLATILE COMPOUNDS IN AIR FROM URBAN RESIDUES TREATMENT FACILITIES. E. Y. Companioni Damas, E. Pagans Miró, C. Villatoro Gonzalez, L. Vera Carrasco, Odournet SL.  (Read the full article in Spanish here)

• Session VI: Odourant, VOCs and GHG s abatement techniques (part II)

1. ADVANCED TREATMENT SYSTEMS FOR ODOUR REMOVAL: SUCCESS CASES FOR INDUSTRIAL FACILITIES. I. Lorenzo, S. Nadal, M. Latorre, A. Amo, A. Bomboi, Labaqua S.A. (Read the full article in Spanish here)

2. GAS EMISSIONS IN BIOLOGICAL WASTE TREATMENT PROCESSES: COMPOSTING PLANTS, WWTP AND ECOPARKS. D. González, A. Sánchez, D. Gabriel, Autonomous University of Barcelona; J. Colón, University of Vic. (Read the full article in Spanish here)

3. BIOTRICKLING FILTER AS TECHNOLOGY FOR THE CONTROL OF INDUSTRIAL EMISSIONS OF VOC: STUDY OF CASE VIABILITY. F. J. Álvarez-Hornos, C. Gabaldón, V. Martínez-Soria, University of Valencia; C. Lafita, Pure Air Solutions (Read the full article in Spanish here)

4. TREATMENT OF EMISSIONS GENERATING ANNOYING ODOURS IN A TURKEY BY-PRODUCTS PROCESSING PLANT. G. Aroca, M. Cáceres, F. Rosenkranz, R. Chamy, Pontificia Universidad Católica de Valparaíso; G. Norambuena, J. Dumont, Sopraval S.A. (Read the full article in Spanish here)

5. URBAN EXPERIENCES IN THE MANAGEMENT OF ODORS ON WASTEWATER TREATMENT PLANTS. J.E. Sánchez-Ramírez, L. Pastor, E. Morales, S. Doñate, L. Sauco, Depuración de aguas del mediterráneo (DAM); L. Otegui, Tecnium-Casals Cardona Ind. S.A. (Read the full article in Spanish here)

6. EVALUATION OF AN ODOUR ABATEMENT SYSTEM BY MEANS OSMOGENIC BARRIER. J. Vicente Alfanjarín DEPLAN S.L. (Read the full article in Spanish here)

7. ESTIMATION OF STABLE-RUN TIME FOR BIOFILTER TO MITIGATE ENVIRONMENT POLLUTION DUE TO STYRENE EMISSION AND OTHER VOCS FROM REINFORCING PLASTICS INDUSTRY. C. A. Severi, J. Gálvez, S. Vardaro, National University of Cuyo. (Read the full article in Spanish here)

8. CO₂ CAPTURE THROUGH A CONSORTIUM OF ISOLATED MICROALGAE OF LANDFILL LEACHATE WITH COLUMN PHOTOBIORREATORS. M. Ramírez, J.M. Gómez, D. Cantero, F. Almenglo, University of Cádiz (IVAGRO); L. F. Saldarriaga University of Cádiz (IVAGRO), Atlantic University. (Read the full article in Spanish here)

9. SANITARY LANDFILL ODOR CONTROL EXPERIENCE USING ORGANIC BIOCATALYSTS AND FIELD OLFATOMETRY MEASUREMENT. C. Velásquez, J. Quintero, Tratamientos Químicos Industriales S.A.S.; C. Hernández, Atesa de ocidente S.A. ESP. (Read the full article in Spanish here)

10. VOLATILE ORGANIC COMPOUNDS (VOCS) IN INDOOR AIR AND ITS TREATMENT BY BIOFILTRATION-ADSORPTION. C. Hort, V. Platel, A. Luengas, S. Sochard, LaTEP, Université de Pau et des Pays de l’Adour ; M. Ondarts, LOCIE, Université de Savoie. (Read the full article in Spanish here)

11. EFFECT OF POST-HARVEST SEASON ON THE METHANE EMISSIONS IN RICE PADDY FIELDS IN THE EBRE DELTA. M. Viñas, F. X. Prenafeta-Boldú, J. Noguerol, C. Alcaraz, J. A. Saldaña-De la Vega, M. Martínez-Eixarch, C. Ibàñez, X. Aranda, Institute of Agrifood Research and Technology, IRTA. (Read the full article in Spanish here)