| Title | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
|---|---|
| ID_Doc | 12782 |
| Authors | Martínez-Gallardo, MR; López, MJ; López-González, JA; Jurado, MM; Suárez-Estrella, F; Pérez-Murcia, MD; Sáez, JA; Moral, R; Moreno, J |
| Title | Microbial communities of the olive mill wastewater sludge stored in evaporation ponds: The resource for sustainable bioremediation |
| Year | 2021 |
| Published | |
| Abstract | 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. |
Similar Articles
| ID | Score | Article |
|---|---|---|
18280
|
Martinez-Gallardo, MR; Jurado, MM; Lopez-Gozalez, JA; Toribio, A; Suarez-Estrella, F; Saez, JA; Moral, R; Andreu-Rodriguez, FJ; Lopez, MJ Biorecovery of olive mill wastewater sludge from evaporation ponds(2022) | |
| 24006
|
Bouhia, Y; Hafidi, M; Ouhdouch, Y; Lyamlouli, K Olive mill waste sludge: From permanent pollution to a highly beneficial organic biofertilizer: A critical review and future perspectives(2023) | |
| 18275
|
Martínez-Gallardo, MR; López, MJ; Jurado, MM; Suárez-Estrella, F; Lopez-González, JA; Sáez, JA; Moral, R; Moreno, J Bioremediation of Olive Mill Wastewater sediments in evaporation ponds through in situ composting assisted by bioaugmentation(2020) | |
| 18436
|
Sáez, JA; Pérez-Murcia, MD; Vico, A; Martínez-Gallardo, MR; Andreu-Rodríguez, FJ; López, MJ; Bustamante, MA; Sanchez-Hernandez, JC; Moreno, J; Moral, R Olive mill wastewater-evaporation ponds long term stored: Integrated assessment of in situ bioremediation strategies based on composting and vermicomposting(2021) | |
| 4889
|
Kinigopoulou, V; Hatzigiannakis, E; Guitonas, A; Oikonomou, EK; Stefanou, S; Gasparatos, D Evaluation of Biobed Bio-Mixture from Olive Oil Mill Wastewater Treatment as a Soil Organic Amendment in a Circular Economy Context(2022)Applied Sciences-Basel, 12, 14 | |
| 14811
|
Magdich, S; Ben Rouina, B; Ammar, E Olive Mill Wastewater Agronomic Valorization by its Spreading in Olive Grove(2020)Waste And Biomass Valorization, 11, 4 | |
| 21923
|
Bôto, ML; Dias, SM; Crespo, RD; Mucha, AP; Almeida, CMR Removing chemical and biological pollutants from swine wastewater through constructed wetlands aiming reclaimed water reuse(2023) | |
| 16510
|
Kargol, AK; Cao, C; James, A; Gough, HL Wastewater reuse for tree irrigation: Influence on rhizosphere microbial communities(2022) |