Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor
The development of effective disinfection treatment processes is crucial to help the water industry cope with the inevitable challenges resulting from the increase in human population and climate change. Climate change leads to heavy rainfall, flooding and hot weather events that are associated with...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/7/680 |
| _version_ | 1797407025511006208 |
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| author | Ana Paula Marques Rosa Huertas Jorge Bernardo Beatriz Oliveira João Goulão Crespo Vanessa Jorge Pereira |
| author_facet | Ana Paula Marques Rosa Huertas Jorge Bernardo Beatriz Oliveira João Goulão Crespo Vanessa Jorge Pereira |
| author_sort | Ana Paula Marques |
| collection | DOAJ |
| description | The development of effective disinfection treatment processes is crucial to help the water industry cope with the inevitable challenges resulting from the increase in human population and climate change. Climate change leads to heavy rainfall, flooding and hot weather events that are associated with waterborne diseases. Developing effective treatment technologies will improve our resilience to cope with these events and our capacity to safeguard public health. A submerged hybrid reactor was used to test the efficiency of membrane filtration, direct photolysis (using ultraviolet-C low-pressure mercury lamps, as well as ultraviolet-C and ultraviolet-A light-emitting diodes panels) and the combination of both treatment processes (membrane filtration and photolysis) to retain and inactivate water quality indicator bacteria. The developed photocatalytic membranes effectively retained the target microorganisms that were then successfully inactivated by photolysis and advanced oxidation processes. The new hybrid reactor could be a promising approach to treat drinking water, recreational water and wastewater produced by different industries in small-scale systems. Furthermore, the results obtained with membranes coated with titanium dioxide and copper combined with ultraviolet-A light sources show that the process may be a promising approach to guarantee water disinfection using natural sunlight. |
| first_indexed | 2024-03-09T03:35:20Z |
| format | Article |
| id | doaj.art-3905db2214f44c05ae3e9b16e66ff520 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T03:35:20Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-3905db2214f44c05ae3e9b16e66ff5202023-12-03T14:48:22ZengMDPI AGCatalysts2073-43442022-06-0112768010.3390/catal12070680Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane ReactorAna Paula Marques0Rosa Huertas1Jorge Bernardo2Beatriz Oliveira3João Goulão Crespo4Vanessa Jorge Pereira5IBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, PortugalIBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, PortugalAssociated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, PortugalIBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, PortugalAssociated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, PortugalIBET-Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, PortugalThe development of effective disinfection treatment processes is crucial to help the water industry cope with the inevitable challenges resulting from the increase in human population and climate change. Climate change leads to heavy rainfall, flooding and hot weather events that are associated with waterborne diseases. Developing effective treatment technologies will improve our resilience to cope with these events and our capacity to safeguard public health. A submerged hybrid reactor was used to test the efficiency of membrane filtration, direct photolysis (using ultraviolet-C low-pressure mercury lamps, as well as ultraviolet-C and ultraviolet-A light-emitting diodes panels) and the combination of both treatment processes (membrane filtration and photolysis) to retain and inactivate water quality indicator bacteria. The developed photocatalytic membranes effectively retained the target microorganisms that were then successfully inactivated by photolysis and advanced oxidation processes. The new hybrid reactor could be a promising approach to treat drinking water, recreational water and wastewater produced by different industries in small-scale systems. Furthermore, the results obtained with membranes coated with titanium dioxide and copper combined with ultraviolet-A light sources show that the process may be a promising approach to guarantee water disinfection using natural sunlight.https://www.mdpi.com/2073-4344/12/7/680surface waterwater quality indicatorsdisinfectionphotolysisphotocatalytic membrane reactor |
| spellingShingle | Ana Paula Marques Rosa Huertas Jorge Bernardo Beatriz Oliveira João Goulão Crespo Vanessa Jorge Pereira Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor Catalysts surface water water quality indicators disinfection photolysis photocatalytic membrane reactor |
| title | Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor |
| title_full | Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor |
| title_fullStr | Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor |
| title_full_unstemmed | Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor |
| title_short | Retention and Inactivation of Quality Indicator Bacteria Using a Photocatalytic Membrane Reactor |
| title_sort | retention and inactivation of quality indicator bacteria using a photocatalytic membrane reactor |
| topic | surface water water quality indicators disinfection photolysis photocatalytic membrane reactor |
| url | https://www.mdpi.com/2073-4344/12/7/680 |
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