Josep Ribes | Universitat de València (original) (raw)

Josep Ribes

Doctor of Chemical Engineering and Associate Professor at the Department of Chemical Engineering in University of Valencia. Since 2004, he has taught in the degrees of Chemical Engineering, Environmental Sciences, Master in Environmental Engineering and Master in Chemical Engineering.He belongs to the CALAGUA research group since 1999, where he has been dedicated to the study of wastewater treatments and the development of new technologies for more efficient water treatment. His research has focused on the experimental study of new processes in laboratory and pilot plants

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Papers by Josep Ribes

Research paper thumbnail of Implementation of the Constructive Alignment of the Teaching Program and Awareness of the Environment for Learning - Acesiq Project

EDULEARN proceedings, Jul 1, 2023

Research paper thumbnail of Evaluating the Impact of Different Pedagogical and Technological Resources to Train Transferable Skills in the Area of Chemical Engineering

EDULEARN proceedings, Jul 1, 2020

Research paper thumbnail of Implementation of the Constructive Alignment of the Teaching Program and Awareness of the Environment for Learning - Acesiq Project

Research paper thumbnail of Widening the Applicability of Most-Open-Valve (Mov) Strategy for Aeration Control at Full Scale Wwtps by Combining Fuzzy-Logic Control and Knowledge-Based Rules

Social Science Research Network, 2022

Research paper thumbnail of Life Cycle Costing of Anmbr for Urban Wastewater Treatment: A Case Study Based on a Demo-Scale Anmbr System

Research paper thumbnail of A Semi-Industrial Anmbr Plant for Urban Wastewater Treatment at Ambient Temperature: Analysis of the Filtration Process, Energy Balance and Quantification of GHG Emissions

Research paper thumbnail of A semi-industrial scale AnMBR for municipal wastewater treatment at ambient temperature: performance of the biological process

Water Research, 2022

A semi-industrial scale AnMBR plant was operated for more than 600 days to evaluate the long-term... more A semi-industrial scale AnMBR plant was operated for more than 600 days to evaluate the long-term operation of this technology at ambient temperature (ranging from 10 to 27 ○C), variable hydraulic retention times (HRT) (from 25 to 41 h) and influent loads (mostly between 15 and 45 kg COD·d-1). The plant was fed with sulfate-rich high-loaded municipal wastewater from the pre-treatment of a full-scale WWTP. The results showed promising AnMBR performance as the core technology for wastewater treatment, obtaining an average 87.2 ± 6.1 % COD removal during long-term operation, with 40 % of the data over 90%. Five periods were considered to evaluate the effect of HRT, influent characteristics, COD/SO42--S ratio and temperature on the biological process. In the selected periods, methane yields varied from 70.2±36.0 to 169.0±95.1 STP L CH4·kg-1 CODinf, depending on the influent sulfate concentration, and wasting sludge production was reduced by between 8 % and 42 % compared to conventional activated sludge systems. The effluent exhibited a significant nutrient recovery potential. Temperature, HRT, SRT and influent COD/SO42--S ratio were corroborated as crucial parameters to consider in maximizing AnMBR performance.

Research paper thumbnail of Enhancing Virtual Learning Strategies in the Area of Chemical Engineering

EDULEARN21 Proceedings, 2021

Research paper thumbnail of Iqlabs: Revamping the Laboratory Subjects of the Chemical Engineering Degree of the University of Valencia to Favor the Level of Competencies Acquisition

Research paper thumbnail of Iqlabs: Assessing the Teaching-Learning Model of the Laboratory Subjects of the Chemical Engineering Degree

INTED2021 Proceedings, 2021

Research paper thumbnail of Modeling the anaerobic treatment of sulfate-rich urban wastewater: Application to AnMBR technology

Water Research, 2020

Although anaerobic membrane bioreactors (AnMBR) are a core technology in the transition of urban ... more Although anaerobic membrane bioreactors (AnMBR) are a core technology in the transition of urban wastewater (UWW) treatment towards a circular economy, the transition is being held back by a number of bottlenecks. The dissolved methane released from the effluent, the need to remove nutrients (ideally by recovery), or the energy lost by the competition between methanogenic and sulfate-reducing bacteria (SRB) for the biodegradable COD have been identified as the main issues to be addressed before AnMBR becomes widespread. Mathematical modeling of this technology can be used to obtain further insights into these bottlenecks plus other valuable information for design, simulation and control purposes. This paper therefore proposes an AnMBR anaerobic digestion model to simulate the crucial SRB-related process since these bacteria degrade more than 40% of the organic matter. The proposed model, which is included in the BNRM2 collection model, has a reduced but all-inclusive structure, including hydrolysis, acidogenesis, acetogenesis, methanogenesis and other SRB-related processes. It was calibrated and validated using data from an AnMBR pilot plant treating sulfate-rich UWW, including parameter values obtained in off-line experiments and optimization methods. Despite the complex operating dynamics and influent composition, it was able to reproduce the process performance. In fact, it was able to simulate the AD of sulfate-rich UWW considering only two groups of SRB: heterotrophic SRB growing on both VFA (propionate) and acetate, and autotrophic SRB growing on hydrogen. Besides the above-mentioned constraints, the model reproduced the dynamics of the mixed liquor solids concentration, which helped to integrate biochemical and filtration models. It also reproduced the alkalinity and pH dynamics in the mixed liquor required for assessing the effect of chemical precipitation on membrane scaling.

Research paper thumbnail of Designing an AnMBR-based WWTP for energy recovery from urban wastewater: the role of primary settling and anaerobic digestion

Separation and Purification Technology, 2015

Research paper thumbnail of Instrumentation, control, and automation for submerged anaerobic membrane bioreactors

Environmental Technology, 2015

Research paper thumbnail of Design methodology for submerged anaerobic membrane bioreactors (AnMBR): A case study

Separation and Purification Technology, 2015

Research paper thumbnail of Evaluating the Impact of Different Pedagogical and Technological Resources to Train Transferable Skills in the Area of Chemical Engineering

Research paper thumbnail of Virtualcheng: Analysis and New Strategies for Virtual Learning in Chemical Engineering Degree

Research paper thumbnail of Ingeniería & Desarrollo

Research paper thumbnail of Anaerobic membrane bioreactors (AnMBR) treating urban wastewater in mild climates

Research paper thumbnail of Obtención de los principales parámetros del agua residual urbana empleados en los modelos matemáticos de fangos activados a partir de una caracterización analítica simple

Ingeniería y Región

El tratamiento de las aguas residuales se ha realizado en España mediante procesos biológicos com... more El tratamiento de las aguas residuales se ha realizado en España mediante procesos biológicos como el comúnmente utilizado de fangos activados. Estos procesos han sido descritos mediante modelos matemáticos que describen la eliminación de los contaminantes presentes en el agua (materia orgánica, nitrógeno y fósforo). La utilización de estos modelos requiere de una caracterización detallada de los contaminantes presentes en el agua residual urbana (ARU). La caracterización de un ARU es clave para el uso de estos modelos de simulación, tanto en el diseño como en la simulación de las Estaciones Depuradoras de Aguas Residuales (EDAR). Este trabajo ha utilizado y considerado los parámetros propuestos en el modelo de fangos activados BNRM1, siendo este modelo una ampliación del modelo ASM2d propuesto por la International Water Association (IWA). El objetivo principal de este trabajo es la realización de un estudio estadístico que permita obtener relaciones entre los datos analíticos utili...

Research paper thumbnail of New frontiers from removal to recycling of nitrogen and phosphorus from wastewater in the circula economy

Research paper thumbnail of Implementation of the Constructive Alignment of the Teaching Program and Awareness of the Environment for Learning - Acesiq Project

EDULEARN proceedings, Jul 1, 2023

Research paper thumbnail of Evaluating the Impact of Different Pedagogical and Technological Resources to Train Transferable Skills in the Area of Chemical Engineering

EDULEARN proceedings, Jul 1, 2020

Research paper thumbnail of Implementation of the Constructive Alignment of the Teaching Program and Awareness of the Environment for Learning - Acesiq Project

Research paper thumbnail of Widening the Applicability of Most-Open-Valve (Mov) Strategy for Aeration Control at Full Scale Wwtps by Combining Fuzzy-Logic Control and Knowledge-Based Rules

Social Science Research Network, 2022

Research paper thumbnail of Life Cycle Costing of Anmbr for Urban Wastewater Treatment: A Case Study Based on a Demo-Scale Anmbr System

Research paper thumbnail of A Semi-Industrial Anmbr Plant for Urban Wastewater Treatment at Ambient Temperature: Analysis of the Filtration Process, Energy Balance and Quantification of GHG Emissions

Research paper thumbnail of A semi-industrial scale AnMBR for municipal wastewater treatment at ambient temperature: performance of the biological process

Water Research, 2022

A semi-industrial scale AnMBR plant was operated for more than 600 days to evaluate the long-term... more A semi-industrial scale AnMBR plant was operated for more than 600 days to evaluate the long-term operation of this technology at ambient temperature (ranging from 10 to 27 ○C), variable hydraulic retention times (HRT) (from 25 to 41 h) and influent loads (mostly between 15 and 45 kg COD·d-1). The plant was fed with sulfate-rich high-loaded municipal wastewater from the pre-treatment of a full-scale WWTP. The results showed promising AnMBR performance as the core technology for wastewater treatment, obtaining an average 87.2 ± 6.1 % COD removal during long-term operation, with 40 % of the data over 90%. Five periods were considered to evaluate the effect of HRT, influent characteristics, COD/SO42--S ratio and temperature on the biological process. In the selected periods, methane yields varied from 70.2±36.0 to 169.0±95.1 STP L CH4·kg-1 CODinf, depending on the influent sulfate concentration, and wasting sludge production was reduced by between 8 % and 42 % compared to conventional activated sludge systems. The effluent exhibited a significant nutrient recovery potential. Temperature, HRT, SRT and influent COD/SO42--S ratio were corroborated as crucial parameters to consider in maximizing AnMBR performance.

Research paper thumbnail of Enhancing Virtual Learning Strategies in the Area of Chemical Engineering

EDULEARN21 Proceedings, 2021

Research paper thumbnail of Iqlabs: Revamping the Laboratory Subjects of the Chemical Engineering Degree of the University of Valencia to Favor the Level of Competencies Acquisition

Research paper thumbnail of Iqlabs: Assessing the Teaching-Learning Model of the Laboratory Subjects of the Chemical Engineering Degree

INTED2021 Proceedings, 2021

Research paper thumbnail of Modeling the anaerobic treatment of sulfate-rich urban wastewater: Application to AnMBR technology

Water Research, 2020

Although anaerobic membrane bioreactors (AnMBR) are a core technology in the transition of urban ... more Although anaerobic membrane bioreactors (AnMBR) are a core technology in the transition of urban wastewater (UWW) treatment towards a circular economy, the transition is being held back by a number of bottlenecks. The dissolved methane released from the effluent, the need to remove nutrients (ideally by recovery), or the energy lost by the competition between methanogenic and sulfate-reducing bacteria (SRB) for the biodegradable COD have been identified as the main issues to be addressed before AnMBR becomes widespread. Mathematical modeling of this technology can be used to obtain further insights into these bottlenecks plus other valuable information for design, simulation and control purposes. This paper therefore proposes an AnMBR anaerobic digestion model to simulate the crucial SRB-related process since these bacteria degrade more than 40% of the organic matter. The proposed model, which is included in the BNRM2 collection model, has a reduced but all-inclusive structure, including hydrolysis, acidogenesis, acetogenesis, methanogenesis and other SRB-related processes. It was calibrated and validated using data from an AnMBR pilot plant treating sulfate-rich UWW, including parameter values obtained in off-line experiments and optimization methods. Despite the complex operating dynamics and influent composition, it was able to reproduce the process performance. In fact, it was able to simulate the AD of sulfate-rich UWW considering only two groups of SRB: heterotrophic SRB growing on both VFA (propionate) and acetate, and autotrophic SRB growing on hydrogen. Besides the above-mentioned constraints, the model reproduced the dynamics of the mixed liquor solids concentration, which helped to integrate biochemical and filtration models. It also reproduced the alkalinity and pH dynamics in the mixed liquor required for assessing the effect of chemical precipitation on membrane scaling.

Research paper thumbnail of Designing an AnMBR-based WWTP for energy recovery from urban wastewater: the role of primary settling and anaerobic digestion

Separation and Purification Technology, 2015

Research paper thumbnail of Instrumentation, control, and automation for submerged anaerobic membrane bioreactors

Environmental Technology, 2015

Research paper thumbnail of Design methodology for submerged anaerobic membrane bioreactors (AnMBR): A case study

Separation and Purification Technology, 2015

Research paper thumbnail of Evaluating the Impact of Different Pedagogical and Technological Resources to Train Transferable Skills in the Area of Chemical Engineering

Research paper thumbnail of Virtualcheng: Analysis and New Strategies for Virtual Learning in Chemical Engineering Degree

Research paper thumbnail of Ingeniería & Desarrollo

Research paper thumbnail of Anaerobic membrane bioreactors (AnMBR) treating urban wastewater in mild climates

Research paper thumbnail of Obtención de los principales parámetros del agua residual urbana empleados en los modelos matemáticos de fangos activados a partir de una caracterización analítica simple

Ingeniería y Región

El tratamiento de las aguas residuales se ha realizado en España mediante procesos biológicos com... more El tratamiento de las aguas residuales se ha realizado en España mediante procesos biológicos como el comúnmente utilizado de fangos activados. Estos procesos han sido descritos mediante modelos matemáticos que describen la eliminación de los contaminantes presentes en el agua (materia orgánica, nitrógeno y fósforo). La utilización de estos modelos requiere de una caracterización detallada de los contaminantes presentes en el agua residual urbana (ARU). La caracterización de un ARU es clave para el uso de estos modelos de simulación, tanto en el diseño como en la simulación de las Estaciones Depuradoras de Aguas Residuales (EDAR). Este trabajo ha utilizado y considerado los parámetros propuestos en el modelo de fangos activados BNRM1, siendo este modelo una ampliación del modelo ASM2d propuesto por la International Water Association (IWA). El objetivo principal de este trabajo es la realización de un estudio estadístico que permita obtener relaciones entre los datos analíticos utili...

Research paper thumbnail of New frontiers from removal to recycling of nitrogen and phosphorus from wastewater in the circula economy

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