Potential application of oil-suspended particulate matter aggregates (OSA) on the remediation of reflective beaches impacted by petroleum: a mesocosm simulation

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. T...

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Bibliographic Details
Published in:	Environmental science and pollution research international Vol. 26; no. 18; pp. 18071 - 18083
Main Authors:	Silva, Carine S., de Oliveira, Olivia M. C., Moreira, Icaro T. A., Queiroz, Antonio F. S., de Almeida, Marcos, Silva, Jessica V. L., da Silva Andrade, Igor Oliveira
Format:	Journal Article
Language:	English
Published:	Berlin/Heidelberg Springer Berlin Heidelberg 01-06-2019
Subjects:	Adsorption Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution DECAPAGE Project: Hydrocarbon degradation in coastal sediments Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Health Environmental Restoration and Remediation - methods Geologic Sediments - chemistry Kinetics Models, Theoretical Particulate Matter - chemistry Petroleum - analysis Petroleum Pollution - analysis Surface Properties Waste Water Technology Water Management Water Pollutants, Chemical - analysis Water Pollution Control Spill remediation Sediment Suspended particulate matter Total petroleum hydrocarbons Beach cleaning Aggregate oil OSA TPH
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Summary:	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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0944-1344 1614-7499
DOI:	10.1007/s11356-015-5234-8