Potential application of oil-suspended particulate matter aggregates (OSA) on the remediation of reflective beaches impacted by petroleum: a mesocosm simulation
| Autor: | Igor Oliveira da Silva Andrade, Olívia Maria Cordeiro de Oliveira, Marcos Vinícius de Almeida, Antônio Fernando de Souza Queiroz, Carine S. Silva, Ícaro Thiago Andrade Moreira, Jessica V. L. Silva |
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| Rok vydání: | 2015 |
| Předmět: |
Geologic Sediments
Surface Properties Environmental remediation Health Toxicology and Mutagenesis 010501 environmental sciences Dispersion (geology) 01 natural sciences Mesocosm chemistry.chemical_compound Water column Environmental Chemistry Petroleum Pollution Environmental Restoration and Remediation 0105 earth and related environmental sciences Environmental engineering Sediment General Medicine Models Theoretical Particulates Pollution Kinetics Petroleum chemistry Environmental chemistry Environmental science Degradation (geology) Particulate Matter Adsorption Water Pollutants Chemical |
| Zdroj: | Environmental Science and Pollution Research. 26:18071-18083 |
| ISSN: | 1614-7499 0944-1344 |
| Popis: | This paper presents the oil-suspended particulate matter aggregate (OSA) resulted from the interaction of droplets of dispersed oil in a water column and particulate matter. This structure reduces the adhesion of oil on solid surfaces, promotes dispersion, and may accelerate degradation processes. The effects of the addition of fine sediments (clay + silt) on the formation of OSA, their impact on the dispersion and degradation of the oil, and their potential use in recovering reflective sandy beaches were evaluated in a mesoscale simulation model. Two simulations were performed (21 days), in the absence and presence of fine sediments, with four units in each simulation using oil from the Recôncavo Basin. The results showed that the use of fine sediment increased the dispersion of the oil in the water column up to four times in relation to the sandy sediment. There was no evidence of the transport of hydrocarbons in bottom sediments associated with fine sediments that would have accelerated the dispersion and degradation rates of the oil. Most of the OSA that formed in this process remained in the water column, where the degradation processes were more effective. Over the 21 days of simulation, we observed a 40 % reduction on average of the levels of saturated hydrocarbons staining the surface oil. |
| Databáze: | OpenAIRE |
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