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Moguel-Castañeda JG, Romero-Bustamante JA, Velazquez-Camilo O, Puebla H, Hernandez-Martinez E. Diagnosis of the Cane Sugar Crystallization Process by Multifractal Analysis of Temperature Time Series. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jazael G. Moguel-Castañeda
- Universidad Autónoma Metropolitana-Azcapotzalco Departamento de Energía Av. San Pablo Xalpa 02200 México City México
| | - Jorge A. Romero-Bustamante
- Universidad Autónoma Metropolitana-Azcapotzalco Departamento de Energía Av. San Pablo Xalpa 02200 México City México
| | - Oscar Velazquez-Camilo
- Universidad Veracruzana Facultad de Ciencias Químicas, Región Veracruz Bv. Adolfo Ruíz Cortines 94294 Veracruz México
| | - Hector Puebla
- Universidad Autónoma Metropolitana-Azcapotzalco Departamento de Energía Av. San Pablo Xalpa 02200 México City México
| | - Eliseo Hernandez-Martinez
- Universidad Veracruzana Facultad de Ciencias Químicas, Región Xalapa Circuito Universitario Gonzálo Aguirre Beltrán 91000 Veracruz México
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Moguel‐Castañeda JG, Hernandez‐Ayala JL, Gomez‐Rodriguez R, Bastidas‐Oyanedel J, Hernandez‐Martinez E. Multiscale Analysis to Determine the Sensitive Zones for Temperature Sensor Location in Tubular Reactors. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jazael G. Moguel‐Castañeda
- Universidad Veracruzana Facultad de Ciencias Químicas 91000 Veracruz México
- Universidad Autónoma Metropolitana-Azcapotzalco Departamento de Energía 02200 Tlalpan México
| | | | | | - Juan‐Rodrigo Bastidas‐Oyanedel
- University of Southern Denmark SDU‐KBM, Department of Chemical Engineering, Biotechnology and Environmental Technology 5230 Odense Denmark
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Diagnosis and Monitoring of Volatile Fatty Acids Production from Raw Cheese Whey by Multiscale Time-Series Analysis. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11135803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Anaerobic treatment is a viable alternative for the treatment of agro-industrial waste. Anaerobic digestion reduces organic load and produces volatile fatty acids (VFA), which are precursors of value-added products such as methane-rich biogas, biohydrogen, and biopolymers. Nowadays, there are no low-cost diagnosis and monitoring systems that analyze the dynamic behavior of key variables in real time, representing a significant limitation for its practical implementation. In this work, the feasibility of using the multiscale analysis to diagnose and monitor the key variables in VFA production by anaerobic treatment of raw cheese whey is presented. First, experiments were carried out to evaluate the performance of the proposed methodology under different operating conditions. Then, experimental pH time series were analyzed using rescaled range (R/S) techniques. Time-series analysis shows that the anaerobic VFA production exhibits a multiscale behavior, identifying three characteristic regions (i.e., three values of Hurst exponent). In addition, the dynamic Hurst exponents show satisfactory correlations with the chemical oxygen demand (COD) consumption and VFA production. The multiscale analysis of pH time series is easy to implement and inexpensive. Hence, it could be used as a diagnosis and indirect monitoring system of key variables in the anaerobic treatment of raw cheese whey.
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Abstract
Efficient monitoring is an open problem in the operation of anaerobic digestion processes, due to the lack of accurate, low-cost, and proper sensors for the on-line monitoring of key process variables. This paper presents two approaches for the indirect monitoring of the anaerobic digestion of cheese whey wastewater. First, the observability property is addressed using conventional and nonconventional techniques, including an observability index. Then, two model-based observer techniques, an extended Luenberger observer, a sliding mode observer, and a data-driven technique based on fractal analysis are formulated and discussed. The performance and capabilities of the proposed methodologies are illustrated on a validated model with experimental data of the anaerobic digestion of cheese whey. Experimental pH measurements are used for the data-driven approach based on fractal analysis. The experimental data sets correspond to experimental conditions (pH > 7.5 and temperature (T) = 40 °C) favoring volatile fatty acid (VFA) production (30 g/L) with simultaneously acceptable biogas production (3420 mL). Results also show that the proposed observers were able to predict satisfactory key process variables. On the other hand, the fractal analysis provides reliable qualitative trends of VFA production and chemical oxygen demand (COD) consumption.
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Sánchez-García D, Hernández-García H, Mendez-Acosta HO, Hernández-Aguirre A, Puebla H, Hernández-Martínez E. Fractal Analysis of pH Time-Series of an Anaerobic Digester for Cheese Whey Treatment. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2018. [DOI: 10.1515/ijcre-2017-0261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Cheese whey is a byproduct of the cheese industry and contains high concentrations of organic matter. Anaerobic digestion (AD) technology is an attractive solution to whey disposal since it allows the reduction of organic matter and simultaneously generates energy via biogas. The biological degradation of cheese whey is characterized by an unstable operation. A critical operational issue in the AD treatment of cheese whey is the tendency of rapid acidification of the waste requiring robust monitoring and control systems for reliable and efficient operation. Recent studies show that techniques based on fractal analysis of time series can be used for the indirect monitoring of critical variables of AD process (i. e., COD, VFA and methane production) for agro-industrial wastewaters. In this work, the application of the fractal analysis of pH time series obtained from an up-flow digester for cheese whey treatment is presented. The results suggest that fractal analysis can be applied to the indirect monitoring of a representative and high strength dairy wastewater. Furthermore, although the complex phenomena underlying in pH in the AD of cheese whey, the fractal analysis can unveil correlations of fractal parameters with key process variables.
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Perrotta AR, Kumaraswamy R, Bastidas-Oyanedel JR, Alm EJ, Rodríguez J. Inoculum composition determines microbial community and function in an anaerobic sequential batch reactor. PLoS One 2017; 12:e0171369. [PMID: 28196102 PMCID: PMC5308813 DOI: 10.1371/journal.pone.0171369] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/19/2017] [Indexed: 02/01/2023] Open
Abstract
The sustainable recovery of resources from wastewater streams can provide many social and environmental benefits. A common strategy to recover valuable resources from wastewater is to harness the products of fermentation by complex microbial communities. In these fermentation bioreactors high microbial community diversity within the inoculum source is commonly assumed as sufficient for the selection of a functional microbial community. However, variability of the product profile obtained from these bioreactors is a persistent challenge in this field. In an attempt to address this variability, the impact of inoculum on the microbial community structure and function within the bioreactor was evaluated using controlled laboratory experiments. In the course of this work, sequential batch reactors were inoculated with three complex microbial inocula and the chemical and microbial compositions were monitored by HPLC and 16S rRNA amplicon analysis, respectively. Microbial community dynamics and chemical profiles were found to be distinct to initial inoculate and highly reproducible. Additionally we found that the generation of a complex volatile fatty acid profile was not specific to the diversity of the initial microbial inoculum. Our results suggest that the composition of the original inoculum predictably contributes to bioreactor community structure and function.
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Affiliation(s)
- Allison R. Perrotta
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, United States of America
| | - Rajkumari Kumaraswamy
- Department of Chemical and Environmental Engineering (CEE), Masdar Institute of Science and Technology, Abu Dhabi, UAE
| | - Juan R. Bastidas-Oyanedel
- Department of Chemical and Environmental Engineering (CEE), Masdar Institute of Science and Technology, Abu Dhabi, UAE
| | - Eric J. Alm
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, United States of America
- Department of Biological Engineering, MIT, Cambridge, MA, United States of America
- Broad Institute of MIT, Cambridge, MA, United States of America
| | - Jorge Rodríguez
- Department of Chemical and Environmental Engineering (CEE), Masdar Institute of Science and Technology, Abu Dhabi, UAE
- * E-mail:
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Arreola-Vargas J, Jaramillo-Gante NE, Celis LB, Corona-González RI, González-Álvarez V, Méndez-Acosta HO. Biogas production in an anaerobic sequencing batch reactor by using tequila vinasses: effect of pH and temperature. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:550-556. [PMID: 26877037 DOI: 10.2166/wst.2015.520] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In recent years, anaerobic digestion has been recognized as a suitable alternative for tequila vinasses treatment due to its high energy recovery and chemical oxygen demand (COD) removal efficiency. However, key factors such as the lack of suitable monitoring schemes and the presence of load disturbances, which may induce unstable operating conditions in continuous systems, have limited its application at full scale. Therefore, the aim of this work was to evaluate the anaerobic sequencing batch reactor (AnSBR) configuration in order to provide a low cost and easy operation alternative for the treatment of these complex effluents. In particular, the AnSBR was evaluated under different pH-temperature combinations: 7 and 32 °C; 7 and 38 °C; 8 and 32 °C and 8 and 38 °C. Results showed that the AnSBR configuration was able to achieve high COD removal efficiencies (around 85%) for all the tested conditions, while the highest methane yield was obtained at pH 7 and 38 °C (0.29 L/g COD added). Furthermore, high robustness was found in all the AnSBR experiments. Therefore, the full-scale application of the AnSBR technology for the treatment of tequila vinasses is quite encouraging, in particular for small and medium size tequila industries that operate under seasonal conditions.
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Affiliation(s)
- J Arreola-Vargas
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430 Guadalajara, Jalisco, México E-mail:
| | - N E Jaramillo-Gante
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430 Guadalajara, Jalisco, México E-mail:
| | - L B Celis
- División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José No. 2055, Col. Lomas 4a Sección, C.P. 78216 San Luis Potosí, SLP, México
| | - R I Corona-González
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430 Guadalajara, Jalisco, México E-mail:
| | - V González-Álvarez
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430 Guadalajara, Jalisco, México E-mail:
| | - H O Méndez-Acosta
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430 Guadalajara, Jalisco, México E-mail:
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Arreola-Vargas J, Ojeda-Castillo V, Snell-Castro R, Corona-González RI, Alatriste-Mondragón F, Méndez-Acosta HO. Methane production from acid hydrolysates of Agave tequilana bagasse: evaluation of hydrolysis conditions and methane yield. BIORESOURCE TECHNOLOGY 2015; 181:191-9. [PMID: 25647030 DOI: 10.1016/j.biortech.2015.01.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 05/25/2023]
Abstract
Evaluation of diluted acid hydrolysis for sugar extraction from cooked and uncooked Agave tequilana bagasse and feasibility of using the hydrolysates as substrate for methane production, with and without nutrient addition, in anaerobic sequencing batch reactors (AnSBR) were studied. Results showed that the hydrolysis over the cooked bagasse was more effective for sugar extraction at the studied conditions. Total sugars concentration in the cooked and uncooked bagasse hydrolysates were 27.9 g/L and 18.7 g/L, respectively. However, 5-hydroxymethylfurfural was detected in the cooked bagasse hydrolysate, and therefore, the uncooked bagasse hydrolysate was selected as substrate for methane production. Interestingly, results showed that the AnSBR operated without nutrient addition obtained a constant methane production (0.26 L CH4/g COD), whereas the AnSBR operated with nutrient addition presented a gradual methane suppression. Molecular analyses suggested that methane suppression in the experiment with nutrient addition was due to a negative effect over the archaeal/bacterial ratio.
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Affiliation(s)
- Jorge Arreola-Vargas
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430, Guadalajara, Jalisco, Mexico
| | - Valeria Ojeda-Castillo
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430, Guadalajara, Jalisco, Mexico
| | - Raúl Snell-Castro
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430, Guadalajara, Jalisco, Mexico
| | - Rosa Isela Corona-González
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430, Guadalajara, Jalisco, Mexico
| | - Felipe Alatriste-Mondragón
- División de Ciencias Ambientales. Instituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José No. 2055, Col. Lomas 4(a) Sección, C.P. 78216, San Luis Potosí, SLP, Mexico
| | - Hugo O Méndez-Acosta
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1451, C.P. 44430, Guadalajara, Jalisco, Mexico.
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Fractality in pH time series of continuous anaerobic bioreactors for tequila vinasses treatment. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2014.01.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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