| Title |
Biorecovery of olive mill wastewater sludge from evaporation ponds |
| ID_Doc |
18280 |
| Authors |
Martinez-Gallardo, MR; Jurado, MM; Lopez-Gozalez, JA; Toribio, A; Suarez-Estrella, F; Saez, JA; Moral, R; Andreu-Rodriguez, FJ; Lopez, MJ |
| Title |
Biorecovery of olive mill wastewater sludge from evaporation ponds |
| Year |
2022 |
| Published |
|
| DOI |
10.1016/j.jenvman.2022.115647 |
| Abstract |
Olive mill wastewater (OMW) resulting from the olive oil extraction process is usually disposed of in evaporation ponds where it concentrates generating a sludge that pollutes the ponds nearby area. In this study, four bio-treatments were applied for the in-situ bioremediation and valorization of OMW sludge: Landfarming, phytor-emediation, composting and vermicomposting. In all cases, the OMW sludge was added with organic residues (mushroom compost, rabbit manure, and chicken manure). The bio-treatments were carried out in duplicate, inoculated and non-inoculated, to determine the effect of a specialized fungal consortium (Aspergillus ochraceus H2 and Scedosporium apiospermum H16) on the efficacy of the bio-treatments. The evaluation of chemical pa-rameters, toxicity, and functional microbial biodiversity revealed that the four techniques depleted the toxicity and favored the stimulation of functional microbiota. Landfarming and phytoremediation allowed the decon-tamination and improvement of soils. Composting and vermicomposting also offered high-quality products of agronomic interest. Inoculation improved the bioremediation effectiveness. Biological treatments are effective for the safe recovery of contaminated OMW sludge into high-quality services and products. |
| Author Keywords |
Landfarming; Composting; Vermicomposting; Phytoremediation; OMWsludge |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000829219800008 |
| WoS Category |
Environmental Sciences |
| Research Area |
Environmental Sciences & Ecology |
| PDF |
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