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Ruigómez I, González E, Galán P, Rodríguez-Sevilla J, Vera L. A Rotating Hollow Fiber Module for Fouling Control in Direct Membrane Filtration of Primary Settled Wastewater. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ignacio Ruigómez
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Facultad de Ciencias-Sección de Química, Universidad de La Laguna, Av. Astrof. Fco. Sanchez s/n. Apdo. 456, 38200 La Laguna, Tenerife, España
| | - Enrique González
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Facultad de Ciencias-Sección de Química, Universidad de La Laguna, Av. Astrof. Fco. Sanchez s/n. Apdo. 456, 38200 La Laguna, Tenerife, España
| | - Patricia Galán
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Facultad de Ciencias-Sección de Química, Universidad de La Laguna, Av. Astrof. Fco. Sanchez s/n. Apdo. 456, 38200 La Laguna, Tenerife, España
| | - Juan Rodríguez-Sevilla
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Facultad de Ciencias-Sección de Química, Universidad de La Laguna, Av. Astrof. Fco. Sanchez s/n. Apdo. 456, 38200 La Laguna, Tenerife, España
| | - Luisa Vera
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Facultad de Ciencias-Sección de Química, Universidad de La Laguna, Av. Astrof. Fco. Sanchez s/n. Apdo. 456, 38200 La Laguna, Tenerife, España
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González E, Díaz O, Ruigómez I, de Vera CR, Rodríguez-Gómez LE, Rodríguez-Sevilla J, Vera L. Photosynthetic bacteria-based membrane bioreactor as post-treatment of an anaerobic membrane bioreactor effluent. Bioresour Technol 2017; 239:528-532. [PMID: 28533063 DOI: 10.1016/j.biortech.2017.05.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/04/2017] [Accepted: 05/07/2017] [Indexed: 06/07/2023]
Abstract
Anaerobic membrane bioreactors have attracted increasing interest in the field of wastewater treatment. However, significant amounts of organic matter, nitrogen and sulphide in the effluent may limit its reuse. A photosynthetic bacteria-based membrane bioreactor is proposed for the further treatment of this effluent. A pilot-scale unit was run outdoor for over 900h to assess the process performance at short hydraulic retention time. After an initial biomass development, simultaneous removal of soluble organic matter and nitrogen was achieved (65% and 39%, respectively). In addition, a significant concentration of sulphate was detected in the permeate, revealing an evident sulphide oxidation. Despite the accumulation of biopolymer clusters in the biological suspension, membrane fouling was effectively mitigated by air-aided backwashing, allowing a sustainable operation. Several strains of bacteria were identified including the photoheterotrophic bacteria Rhodopseudomonas sp. and the nitrifying and denitrifying bacteria Chryseobacterium sp.
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Affiliation(s)
- E González
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain.
| | - O Díaz
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain
| | - I Ruigómez
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain
| | - C R de Vera
- Instituto de Bio-orgánica "Antonio González" (IUBO-AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna, Tenerife, Spain; Departamento de Química Orgánica, Universidad de La Laguna, Tenerife, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain
| | - L E Rodríguez-Gómez
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain
| | - J Rodríguez-Sevilla
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain
| | - L Vera
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna, Astrof. Fco. Sanchez s/n, 38200 La Laguna, Spain
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Ruigómez I, González E, Guerra S, Rodríguez-Gómez LE, Vera L. Evaluation of a novel physical cleaning strategy based on HF membrane rotation during the backwashing/relaxation phases for anaerobic submerged MBR. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.12.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Ruigómez I, Vera L, González E, Rodríguez-Sevilla J. Pilot plant study of a new rotating hollow fibre membrane module for improved performance of an anaerobic submerged MBR. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.04.061] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vera L, González E, Ruigómez I, Gómez J, Delgado S. Influence of Gas Sparging Intermittence on Ultrafiltration Performance of Anaerobic Suspensions. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04529] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luisa Vera
- Departamento de Ingeniería
Química, Facultad de Ciencias—Sección Químicas, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez
s/n, 38200 La Laguna, Spain
| | - Enrique González
- Departamento de Ingeniería
Química, Facultad de Ciencias—Sección Químicas, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez
s/n, 38200 La Laguna, Spain
| | - Ignacio Ruigómez
- Departamento de Ingeniería
Química, Facultad de Ciencias—Sección Químicas, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez
s/n, 38200 La Laguna, Spain
| | - Jenniffer Gómez
- Departamento de Ingeniería
Química, Facultad de Ciencias—Sección Químicas, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez
s/n, 38200 La Laguna, Spain
| | - Sebastián Delgado
- Departamento de Ingeniería
Química, Facultad de Ciencias—Sección Químicas, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez
s/n, 38200 La Laguna, Spain
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Ruigómez I, Vera L, González E, González G, Rodríguez-Sevilla J. A novel rotating HF membrane to control fouling on anaerobic membrane bioreactors treating wastewater. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.12.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vera L, González E, Ruigómez I, Gómez J, Delgado S. Analysis of backwashing efficiency in dead-end hollow-fibre ultrafiltration of anaerobic suspensions. Environ Sci Pollut Res Int 2015; 22:16600-16609. [PMID: 26081780 DOI: 10.1007/s11356-015-4857-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 06/08/2015] [Indexed: 06/04/2023]
Abstract
A novel dead-end mode operation for filtering anaerobic suspensions was investigated. In this mode, the filtration system automatically adjusted backwashing frequency to a preselected transmembrane pressure set-point. This paper discusses the effectiveness of the backwashing conditions on membrane fouling. Anaerobic suspensions from a conventional wastewater treatment plant digester were used as model suspensions for the trials carried out at lab-scale. Gas sparging aided backwashing significantly enhanced membrane cleaning efficiency. No effect of gas sparging on internal fouling was detected. Also, the cleaning efficiency linearly decreased with permeate flux. Nevertheless, due to a high increase in the reversible fouling, a reasonable net permeate flux (7.2-6.8 L/h m(2)) can be achieved when intermediate fluxes (12-16 L/h m(2)) were imposed and the higher transmembrane pressure set-point value (50 kPa) was applied. Both backwashing duration and flux exhibited similar influence on cake fouling removal for a given volume of permeate produced.
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Affiliation(s)
- Luisa Vera
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n., 38200, La Laguna, Spain.
| | - Enrique González
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n., 38200, La Laguna, Spain.
| | - Ignacio Ruigómez
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n., 38200, La Laguna, Spain.
| | - Jenniffer Gómez
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n., 38200, La Laguna, Spain.
| | - Sebastián Delgado
- Department of Chemical Engineering, Faculty of Chemistry, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n., 38200, La Laguna, Spain.
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