Papers Gas Treatment

1. Lucero Jiménez, Sonia Arriaga, Raúl Muñoz, Aitor Aizpuru. Effect of extended and daily short-term starvation/shut-down events on the performance of a biofilter treating toluene vapors.  Journal of Environmental Management,

2. Sara Cantera, Raquel Lebrero, Suní Rodríguez, Pedro A. García-Encina, Raúl Muñoz. Ectoine bio-milkink in methanotrophs: A step further towards methane-based bio-refineries into high added-value products. Chemical Engineering Journal,

3. Alma Toledo-Cervantes, José M. Estrada, Raquel Lebrero, Raúl Muñoz. A comparative analysis of bniogas yupgrading technologies: Photosynthetic vs physical/vhemical processes. Algal Research,

4. Osvaldo D. Frutos, Irene Cortes, Sara Cantera, Esther Arnaiz, Raquel Lebrero, Raúl Muñoz. Nitrous Oxide Abatement Coupled with Biopolymer Production As a Model GHG Biorefinery for Cost-Effective Climate Change Mitigation. Environmental Science & Technology,

5. Osvaldo D. Frutos, Gonzalo Barriguín, Raquel Lebrero, Raúl Muñoz. Assessing the influence of the carbon source on the abatement of industrial N2O emissions coupled with the synthesis of added value bioproducts. Science of The Total Environment,

6. Sara Cantera, Raquel Lebrero, Elisa Rodríguez, Pedro A. García-Encina, Raúl Muñoz. Continuous abatement of methane coupled with ectoine production by Methylomicrobium alcaliphilum 20Z in stirred tank reactors: A step further towards greenhouse gas biorefineries. Journal of Cleaner Production,

7. Mariana Franco-Morgado, Cynthia Alcántara, Adalberto Noyola, Raúl Muñoz, Armando González-Sánchez. A study of photosynthetic biogas upgrading based on a high rate algal pond under alkaline conditions: Influence of the illumination regime. Science of the Total Environment,

8. Esther Posadas, David Marín, Saúl Blanco, Raquel Lebrero, Raúl Muñoz. Simultaneous biogas upgrading and centrate treatment in an outdoors pilot scale high rate algal pond. Bioresource Technology,

9. Elisa Rodríguez, Pedro A. García-Enciana, Raúl Muñoz, Raquel Lebrero. 2017. Microbial commuunity changes during different empty bed residence times and operational fluctuations in an air diffusion reactor for odor abatement. Science of The Total Environment.

10. Ilker Akmirza, Celia Pascual, Andrea Carvajal, Rebeca Pérez, Raúl Muñoz, Raquel Lebrero. 2017. Anoxic biodegradation of BTEX in a biotrickling filter. Science of The Total Environment.

2. Alberto Vergara-Fernandez, A., Soctt, F., Moreno-Casas, P., Diaz-Robles, L., Muñoz, R. 2016. Elucidating the key role of the fungal mycelium on the biodegradation of n-pentane as a model hydrophobic VOC. Chemosphere 157 (2016) 89-96

3. Toledo-Cervantes, A., Serejo, M., Blanco, S., Pérez, R., Lebrero, R., Muñoz, R. (2016). Photosynthetic biogas upgrading to bio-methane: Boosting nutrient recovery via biomass productivity control. Algal Research, 17, 46-52

4. Cantera S, Estrada J.M, Lebrero R, García-Encina P, Muñoz R (2016) Comparative performance evaluation of conventional and two-phase hydrophobic stirred tank reactors for methane abatement: Mass Transfer and Biological Considerations. Biotechnology and Bioengineering. 113 (6), 1203-1212

6. Frutos O.D, Quijano G, Perez R., Muñoz R. Simultaneous biological nitrous oxide abatement and wastewater treatment in a denitrifying off-gas bioscrubber, Chemical Engineering Journal, 288, 28-37

8. Lebrero R, Ángeles R, Pérez R, Muñoz R, Toluene biodegradation in an algal-bacterial airlift photobioreactor: Influence of the biomass concentration and of the presence of an organic phase, Journal of Environmental Management,

9. Lopez JC, Porca E, Collins G, Perez R, Rodriguez-Alija A, Muñoz R, Quijano G (2016) Biogas-based denitrification in a biotrickling filter: Influence of nitrate concentration and hydrogen sulfide. Biotechnology & Bioengineering DOI: 10.1002/bit.26092.

1. Lebrero R., Toledo-Cervantes A., Muñoz R., Nery V., Foresti E. Biogas upgrading from vinasse digesters: a comparison between an anoxic biotrickling filter and an algal-bacterial photobioreactor. Journal of Chemical Technology and Biotechnology. doi: 10.1002/jctb.4843

2. Posadas E., Szpak D., Lombó F., Domínguez A., Díaz I., Blanco S., García-Encina P., Muñoz R. Feasibility study of biogas upgrading coupled with nutrient removal from anaerobic effluents using microalgae-based processes. Journal of Applied Phycology. DOI 10.1007/s10811-015-0758-3

3. Muñoz R, Meier L., Diaz I, Jeison D (2015) A critical review on the state-of-the-art of physical/chemical and biological technologies for an integral biogas upgrading. Reviews in Environmental Science and Bio/Technology 14:727-759.

4. Navia R., Muñoz R. (2015). Biotechnologies for gaseous emissions and by-products management in waste treatment facilities. Waste Management & Research. 33(11), 945–946

5. Posadas E, Serejo M, Blanco S, Pérez R, García-Encina P, Muñoz R. (2015) Minimization of biomethane oxygen concentration during biogas upgrading inalgal–bacterial photobioreactors. Algal Research 12, 221-229

6. Estrada J.M., Kraakman N.J.R., Lebrero R., Muñoz R. (2015). Integral approaches to wastewater treatment plant upgrading for odor prevention: Activated Sludge and Oxidized Ammonium Recycling. Bioresource Technology. 196: 685-693

6. Alcántara C., García-Encina P., Muñoz R. (2015). Evaluation of the simultaneous biogas upgrading andtreatment of centrates in a HRAP through C, N and P massbalances. Water Science & Technology 72 (1): 150-157 

7. Serejo M., Posadas E.,  Boncz M., Blanco S., Garcia-Encina PA., Muñoz R. (2015). Influence of biogas flow rate on biomass composition during the optimization of biogas upgrading in microalgal-bacterial processes. Environmental Science & Technology 49 (5) 3228-3236 .

8. Frutos O.D, Arvelo I.A, Perez R, Quijano G, Muñoz R (2015) Continuous Nitrous Oxide Abatement in a Novel Denitrifying Off-Gas Bioscrubber. Applied Microbiology and Biotechnology. 99 (8): 3695-3706.

10. Lebrero R, Hernandez R, Perez R, Estrada J.M, Muñoz R (2015) Two-phase partitioning biotrickling filters for methane abatement: exploring the potential of hydrophobic methanotrophs. Journal of Environmental Management.151:124-131

11. Alfonsin C, Lebrero R, Estrada J.M, Muñoz R, Kraakman N.J.R, Feijoo G, Moreira M.T (2015) Selection of odour removal technologies in Wastewater Treatment Plants: a guideline based on Life Cycle Assessment. Journal of Environmental Management. 149(1): 77-85.

12. Dorado A., Dumont E, Muñoz R, Quijano G (2015) A novel mathematical approach for the understanding and optimization of two-phase partitioning bioreactors devoted to air pollution control. Chemical Engineering J. 263(1): 239-248.


2. Lopez J.C, Quijano G, Perez R, Muñoz R (2014) Assessing the influence of CH4 concentration during culture enrichment on the biodegradation kinetics andpopulation structure. Journal of Environmental Management. 146(15): 116-123.

3. Estrada JM, Lebrero R, Quijano G, Perez R, Figueroa-Gonzalez I, Garcia-Encina P, Muñoz R (2014) Methane abatement in a gas-recycling biotrickling filter: evaluating innovative operational strategies to overcome mass transfer limitations. Chemical Engineering Journal 253:385-393.

4. Saucedo-Lucero JO, Quijano G, Arriaga S, Muñoz R (2014) Hexane abatement and spore emission control in a fungal biofilter-photoreactor hybrid unit. Journal of Hazardous Materials 276:287-294.

5. Kraakman NJR, Estrada JM, Lebrero R, Cesca J, Muñoz R (2014) Evaluating odour control technologies using reliability and sustainability criteria – a case study for water treatment plants. Water Science & Technology 69:1426-1433.

6. Lebrero R, Estrada JM, Muñoz R, Quijano G (2014) Deterioration of organic packing materials commonly used in air biofiltration: Effect of VOC-packing interactions. Journal of Environmental Management 137:93-100.

7. Estrada JM, Dudek A, Muñoz R, Quijano G (2014) Fundamental study on gas–liquid mass transfer in a biotrickling filter packed with polyurethane foam. Journal of Chemical Technology and Biotechnology 89:1419-1424.

8Ordaz A, Lopez J.C,Figueroa I, Muñoz R, Quijano G (2014). Assessment of methane biodegradation kinetics in two-phase partitioning bioreactors by pulserespirometry. Water Research 67:46-54.

9. Lebrero R, Gondim AC, Perez R, Garcia-Encina PA, Muñoz R (2014) Comparative assessment of a biofilter, a biotrickling filter and a hollow fiber membrane bioreactor for odour treatment in wastewater treatment plants. Water Research 49:339-350.

10. Lebrero R, Hernandez M, Quijano G, Muñoz R (2014) Hexane biodegradation in two-liquid phase biofilters operated with hydrophobic biomass: effect of the organic phase- packing media ratio and the irrigation rate. Chemical Engineering Journal 237:162-168.


1. Estrada JM, Quijano G, Lebrero R, Muñoz R (2013) Step-feed biofiltration: a low cost alternative configuration for off-gas treatment. Water Research 47:4312-4321.

2. Lebrero R, Rodriguez E, Perez R, Garcia-Encina PA, Muñoz R (2013) Abatement of odorant compounds in one- and two-phase biotrickling filters under steady state conditions. Applied Microbiology and Biotechnology 97:4627-4638.

3. Muñoz R, Souza TSO, Glittmann L, Perez R, Quijano G (2013) Biological anoxic treatment of O2-free VOC emissions from the petrochemical industry: a proof of concept study. Journal of Hazardous Materials 260:442-450.

4. Lebrero R, Volckaert D, Pérez R, Muñoz R, Van Langenhove H (2013) A membrane bioreactor for the simultaneous treatment of acetone, toluene, limonene and hexane at trace level concentrations. Water Research 47:2199-2212.

5. Muñoz R, Gan E, Hernandez M, Quijano G (2013) Hexane biodegradation in two-liquid phase bioreactors: high-performance operation based on the use of hydrophobic biomass. Biochemical Engineering Journal 70:9-16.

6. Lebrero R, Rangel MGL, Muñoz R (2013) Characterization and biofiltration of a real odorous emission from wastewater treatment plant sludge. Journal of Environmental Management 116:50-57.

7. Lopez JC, Quijano G, Souza TSO, Estrada JM, Lebrero R, Muñoz R (2013) Biotechnologies for greenhouse gases (CH4, N2O, and CO2) abatement: state of the art and challenges. Applied Microbiology and Biotechnology 97:2277-2303.

8. Estrada JM, Hernandez S, Muñoz R, Revah S (2013) A comparative study of fungal and bacterial biofiltration treating a VOC mixture. Journal of Hazardous Materials 250-251:190-197.

1. Estrada JM, Kraakman NJR, Lebrero R, Muñoz R (2012) A sensitivity analysis of process design parameters, commodity prices and robustness on the economics of odour abatement technologies. Biotechnology Advances 30:1354-1363.

2. Muñoz R, Daugulis AJ, Hernandez M, Quijano G (2012) Recent advances in two-phase partitioning bioreactors for the treatment of volatile organic compounds. Biotechnology Advances 30:1707-1720.

3. Estrada JM, Rodriguez E, Quijano G, Muñoz R (2012) Influence of VOC concentration on the diversity and biodegradation performance of microbial communities. Bioprocess and Biosystems Engineering 35:1477-1488.

4. Hernandez M, Quijano G, Muñoz R (2012) Key role of microbial characteristics on the performance of VOC biodegradation in two-liquid phase bioreactors. Environmental Science & Technology 46:4059-4066.

5. Lebrero R, Estrada JM, Muñoz R, Quijano G (2012). Toluene mass transfer characterization in a biotrickling filter. Biochemical Engineering Journal 60: 44-49.

6. Lebrero R, Rodriguez EM, Estrada J.M, Garcia-Encina P.A, Muñoz R (2012) Odour abatement in biotrickling filters: effect of the EBRT on methyl mercaptan and hydrophobic VOCs removal. Bioresource Technology 109:38-45.

7. Vergara-Fernandez A, Hernandez S, Muñoz R, Revah S (2012) Influence of inlet load, gas flow and mineral medium addition on spore emission of Fusarium solani in the fungal biofiltration of hydrophobic VOCs. Journal of Chemical Technology and Biotechnol 87:778-784.

8. Rojo N, Muñoz R, Gallastegui G, Barona A, Gurtubay L, Prenafeta-Boldú FX, Elias A (2012) Carbon disulfide biofiltration: influence of the accumulation of biodegradation products on biomass development. Journal of Chemical Technology and Biotechnology 87:764-771.

6. Lebrero R, Bouchy L, Stuetz R, Muñoz R (2011) Odour assessment and management in wastewater treatment plants – a review. Critical Reviews in Environmental Science and Technology 41:915-950.

7. Lebrero R, Rodriguez EM, García-Encina PA, Muñoz R (2011) A comparative assessment of biofiltration and activated sludge diffusion for odour abatement. Journal of Hazardous Materials 190:622-630.

8. Hernandez M, Quijano G, Muñoz R, Bordel S (2011) Modeling of VOC mass transfer in two-liquid phase stirred tank, biotrickling filter and airlift reactors. Chemical Engineering Journal 172:961-969.

1. Quijano G, Hernandez M, Villaverde S, Thalasso F, Muñoz R (2010) A step-forward in the characterization and potential applications of solid and liquid oxygen transfer vectors. Applied Microbiology and Biotechnology 85:543-551.

2. Bordel S, Hernandez M, Villaverde S, Muñoz R (2010). Modelling gas-liquid VOCs transport in two liquid phase partitioning bioreactors. International Journal of Heat and Mass Transfer 53:1139-1145.

3. Rocha-Rios R, Muñoz R, Revah S (2010) Effect of silicone oil fraction and stirring rate on methane degradation in a stirred tank reactor. Journal of Chemical Technology and Biotechnology 85:314-319.

4. Quijano G, Rocha Rios J, Hernandez M, Villaverde S, Revah S, Muñoz R, Thalasso F (2010) Determining the effect of solid and liquid vectors on the gaseous interfacial area and oxygen transfer rates in two-phase partitioning bioreactors. Journal of Hazardous Materials 175:1085-1089.

5. Quijano G, Ordaz A, Muñoz R, Thalasso F (2010) New insights on oxygen uptake mechanisms in two-phase partitioning bioreactors. Biotechnology Letters 32:223-228.

6. Lebrero R, Rodriguez E, Martín M, García-Encina PA, Muñoz R (2010). H2S and VOCs abatement robustness in biofilters and air diffusion bioreactors: a comparative study. Water Research 44:3905-3914.

7. Hernandez M, Quijano G, Thalasso F, Daugulis AJ, Villaverde S, Muñoz R (2010). A comparative study of solid and liquid non-aqueous phases for the biodegradation of hexane in two-phase partitioning bioreactors. Biotechnology and Bioengineering106:731-740.

8. Quijano G, Chavez-Avila R, Muñoz R, Thalasso F, Ordaz A (2010) KLa measurement in two-phase partitioning bioreactors: new insights on potential errors at low power input. Journal of Chemical Technology and Biotechnology 85:1407-1412.

9. Muñoz R, Sivret E, Parcsi G, Lebrero, R, Wang X, Suffet, M, Stuetz RM (2010) Monitoring techniques for odour abatement assessment: a review. Water Research 44:519-5149.

10. Hernandez M, Gouveia J, Quijano G, Thalasso F, Villaverde S, Muñoz R (2010) A systematic study of the influence on microbial kinetics of the presence of an organic phase during microbial isolation. Chemical Engineering Transactions 23:375-380.

11. Lebrero R, Quijano G, Torio I, Martinez B, Muñoz R (2010) A comparative study of two biological processes for odour treatment: biofiltration vs. activated sludge diffusion. Chemical Engineering Transactions 23:333-338.

1. Hernandez M, Gouveia J, Segura A, Muñoz R, Villaverde S (2009) Addressing the role of the extrusion pump-bearing pGRT1 plasmid on toluene biodegradation by Pseudomonas putida DOT-T1E under real case scenarios. Water Science and Technology 60:2391-2398.

2. Quijano G, Hernandez M, Thalasso F, Muñoz R, Villaverde S (2009) Two-Phase Partitioning Bioreactors in Environmental Biotechnology. Applied Microbiology and Biotechnology 84:829-46.

3. Muñoz R, Hernandez M, Segura A, Gouveia J, Rojas A, Villaverde S (2009) Continuous cultures of Pseudomonas putida mt-2 overcome catabolic function loss under real case operating conditions. Applied Microbiology and Biotechnology 83:189-198.

1. Guieysse B, Hort C, Platel V, Muñoz R, Ondarts M, Revah S (2008) Biological treatment of indoor air for VOC removal: potential and challenges. Biotechnology Advances 26:398-410.

2. Muñoz R, Díaz LF, Bordel S, Villaverde S (2008) Response of Pseudomonas putida F1 cultures to fluctuating toluene loads and operational failures in suspended growth bioreactors. Biodegradation 19:897-908.

3. Muñoz R, Chambaud M, Bordel S, Villaverde S (2008) A systematic selection of the non-aqueous phase in a bacterial two-phase partitioning bioreactor treating alfa-pinene. Applied Microbiology and Biotechnology 79:33-41.

4. Bordel S, Muñoz R, Díaz LF, Villaverde S (2008) Mechanistic model for evaluating the performance of suspended growth bioreactors for the off-gas treatment of VOCs. Biochemical Engineering Journal 38:395-405.

5. Díaz LF, Muñoz R, Bordel S, Villaverde S (2008) Toluene biodegradation by Pseudomonas putida F1: targeting culture stability in long-term operation. Biodegradation 19:197-208.

1. Muñoz R, Villaverde S, Guieysse B, Revah, S (2007) Two phase partitioning bioreactors for treatment of volatile organic compounds. Biotechnology Advances 25:410-422.

2. Bordel S, Muñoz R, Diaz LF, Villaverde S (2007) Predicting the accumulation of harmful metabolic by-products during the treatment of VOC emissions in suspended growth bioreactors. Environmental Science & Technology 41:5879-5881.

3. Bordel S, Muñoz R, Díaz LF, Villaverde S (2007) A multi-step model for substrate assimilation and bacterial growth, application to benzene biodegradation by Pseudomonas putida F1. Biotechnology and Bioengineering 97:1098-1107.

4. Muñoz R, Díaz LF, Bordel S, Villaverde S (2007) Inhibitory effects of catechol accumulation on benzene biodegradation in Pseudomonas putida F1 cultures. Chemosphere 68:244-252.

5. Bordel S, Muñoz R, Diaz LF, Villaverde S (2007) New insights on toluene biodegradation by Pseudomonas putida F1: Influence of pollutant concentration and excreted metabolites. Applied Microbiology and Biotechnology 74:857-866.