Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation
Olive Mill Wastewater (OMW) is a polluting residue from the olive oil industry. It is usually stored in open-air unprotected evaporation ponds where their sediments accumulate. This study compares the characteristics of OMW sludges stored for long-time in evaporation ponds and assesses their impac...
| Main Authors: | , , , , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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2024
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/15024 https://doi.org/10.1016/j.jenvman.2020.111810 |
| _version_ | 1789406469657985024 |
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| author | Martínez Gallardo, María Rosa López López, María Josefa López González, Juan Antonio Jurado Rodríguez, Macarena Del Mar Suárez Estrella, Francisca Pérez Murcia, M. D. Sáez, José A. Moral, Raúl Moreno, Joaquín |
| author_facet | Martínez Gallardo, María Rosa López López, María Josefa López González, Juan Antonio Jurado Rodríguez, Macarena Del Mar Suárez Estrella, Francisca Pérez Murcia, M. D. Sáez, José A. Moral, Raúl Moreno, Joaquín |
| author_sort | Martínez Gallardo, María Rosa |
| collection | DSpace |
| description | Olive Mill Wastewater (OMW) is a polluting residue from the olive oil industry. It is usually stored in open-air
unprotected evaporation ponds where their sediments accumulate. This study compares the characteristics of
OMW sludges stored for long-time in evaporation ponds and assesses their impact on the underlying soil layer.
Physicochemical parameters, toxicity bioassays, and full characterization of the microbial community were
analyzed. The extension of the polluting effects was assessed by analysis of toxicity, microbial biomass carbon,
and respiration. Geostatistics was used to predict their spatial distribution. Organic matter and polyphenol
content besides toxicity levels determine variations between OMW sludges and have a high impact on the
microbiota they contain. The microbial community was abundant, diverse, and functionally active. However, the
biodegradability of the sludges was hindered by the toxicity levels. Toxicity and biomass carbon were higher on
the surface of the ponds than in the soil layer revealing a reduced leach flow and depletion of contaminants. The
natural microbiota might be biostimulated by means of applying sustainable and feasible biological treatments in
order to favor the OMW sludges bioremediation. These results open up the possibility of solving the environmental concern caused by its storage in similar scenarios, which are common in olive oil-producing countries. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-15024 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2024 |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-150242024-01-10T08:12:13Z Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation Martínez Gallardo, María Rosa López López, María Josefa López González, Juan Antonio Jurado Rodríguez, Macarena Del Mar Suárez Estrella, Francisca Pérez Murcia, M. D. Sáez, José A. Moral, Raúl Moreno, Joaquín Metagenomics Ecotoxicity Phytotoxicity Biolog ecoplate Kriging Total bacteria and fungi Olive Mill Wastewater (OMW) is a polluting residue from the olive oil industry. It is usually stored in open-air unprotected evaporation ponds where their sediments accumulate. This study compares the characteristics of OMW sludges stored for long-time in evaporation ponds and assesses their impact on the underlying soil layer. Physicochemical parameters, toxicity bioassays, and full characterization of the microbial community were analyzed. The extension of the polluting effects was assessed by analysis of toxicity, microbial biomass carbon, and respiration. Geostatistics was used to predict their spatial distribution. Organic matter and polyphenol content besides toxicity levels determine variations between OMW sludges and have a high impact on the microbiota they contain. The microbial community was abundant, diverse, and functionally active. However, the biodegradability of the sludges was hindered by the toxicity levels. Toxicity and biomass carbon were higher on the surface of the ponds than in the soil layer revealing a reduced leach flow and depletion of contaminants. The natural microbiota might be biostimulated by means of applying sustainable and feasible biological treatments in order to favor the OMW sludges bioremediation. These results open up the possibility of solving the environmental concern caused by its storage in similar scenarios, which are common in olive oil-producing countries. 2024-01-10T08:12:13Z 2024-01-10T08:12:13Z 2020-12-06 info:eu-repo/semantics/article 0301-4797 http://hdl.handle.net/10835/15024 https://doi.org/10.1016/j.jenvman.2020.111810 en info:eu-repo/semantics/openAccess |
| spellingShingle | Metagenomics Ecotoxicity Phytotoxicity Biolog ecoplate Kriging Total bacteria and fungi Martínez Gallardo, María Rosa López López, María Josefa López González, Juan Antonio Jurado Rodríguez, Macarena Del Mar Suárez Estrella, Francisca Pérez Murcia, M. D. Sáez, José A. Moral, Raúl Moreno, Joaquín Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| title | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| title_full | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| title_fullStr | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| title_full_unstemmed | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| title_short | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| title_sort | microbial communities of the olive mill wastewater sludge stored in evaporation ponds: the resource for sustainable bioremediation |
| topic | Metagenomics Ecotoxicity Phytotoxicity Biolog ecoplate Kriging Total bacteria and fungi |
| url | http://hdl.handle.net/10835/15024 https://doi.org/10.1016/j.jenvman.2020.111810 |
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