Mitigation of water repellency in the treatment of contaminated muds using the chemical–biological stabilization process

Osorio, Francisco; Adams, Randy H.

doi:10.1007/s13762-014-0606-z

Cited by 9 publications

(7 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This may maintain the in situ water content above the critical threshold at which water repellency becomes manifest. Similarly, the increase in field capacity was correlated with a reduction in hydrophobicity in soil which have been recovered by phytoremediation techniques (Guzmán and Adams 2014;Sublette et al 2010). In addition to the type and amount of SOM being correlated with soil hydrophobicity, texture has also been implicated.…”

Section: Model For Estimating Wdpt From°api and Oil Concentrationmentioning

confidence: 94%

“…Other authors have also observed this discrepancy between water repellency as measured in the laboratory and actual conditions in the field (Adams et al 2008a;Guzmán and Adams 2014). For 2 years, Guzmán and Adams (2014) monitored the remediation of very clayey, hydrocarbon-contaminated sediments that had been treated using a chemical-biological stabilization technology.…”

Section: Critical Moisture Contentmentioning

confidence: 99%

“…It may be preferable to pursue methods which are directed at overcoming water repellency problems directly, rather than concentrating of technologies focused almost exclusively on reducing the concentration of residual oil in soil. Such strategies have been developed for other clayey, soil-like materials (Guzmán and Adams 2014) by techniques which increase water infiltration rates and water holding capacity, without necessarily reducing the overall petroleum hydrocarbon concentration, by the addition of organic substrates and the promotion of vegetative cover.…”

Section: Model For Estimating Wdpt From°api and Oil Concentrationmentioning

confidence: 99%

See 2 more Smart Citations

Effect of crude petroleum on water repellency in a clayey alluvial soil

Marín-García

Adams

Hernández-Barajas

2015

Int. J. Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Water repellency was studied in a clayey soil contaminated with light (36.6°API), medium (27.4°API), and heavy (15.0°API) crude oils at concentrations of 1, 2, 4, and 8 %. Higher water drop penetration times (WDPTs) were observed in dry soil as the density and concentration of petroleum increased, resulting in logarithmic functions which could be modeled from API gravity and oil concentration (R 2 = 0.986). WDPTs varied from 2.1 to 8.7 s with light crude, 11.1 to 44.9 s for medium crude, and 39.4 to 134.5 s for heavy crude. Only heavy crude-contaminated soil, at [2 % resulted in significant hydrophobicity. Critical moisture content in these hydrophobic soils was insignificant at moisture contents [12.8 % at 2 % heavy crude and [14.6 % at 4 % heavy crude. Only at a concentration of 8 % heavy crude was the critical moisture content ([17.2 %) higher than that observed in the field during the dry season (14.8 %). Thus, only (clayey) soil contaminated with very high concentrations of heavy oil is likely to present hydrophobicity in this monsoon climate. This study shows that the development of models to describe soil water repellency may be useful to propose remediation criteria which reduce or avoid the risk of water repellency.

show abstract

Section: Model For Estimating Wdpt From°api and Oil Concentrationmentioning

confidence: 94%

Section: Critical Moisture Contentmentioning

confidence: 99%

Section: Model For Estimating Wdpt From°api and Oil Concentrationmentioning

confidence: 99%

See 1 more Smart Citation

Effect of crude petroleum on water repellency in a clayey alluvial soil

Marín-García

Adams

Hernández-Barajas

2015

Int. J. Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the field, even during the driest part of the year, there may still be some moisture in the soil, which could mitigate water repellency. To determine the CMC at which water repellency is manifested, direct measurement of penetration times of deionized water was made to determine CMC for absorption at \5 and \60 s (nonrepellent to slightly repellent range, according to Dekker and Jungerius 1990), as per Guzmán-Osorio and Adams (2015). -112-1995-SCFI (SECOFI 1996, and Adams et al (2014).…”

Section: Ismc Cmc and Water Repellency Analysesmentioning

confidence: 99%

Treatment of water-repellent petroleum-contaminated soil from Bemidji, Minnesota, by alkaline desorption

Adams

Cerecedo-López

Alejandro-Álvarez

et al. 2016

Int. J. Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

A pipeline right-of-way contaminated with light crude in 1979 and subsequently burned shows severe hydrophobicity, poor infiltration rates, and loss of vegetative cover. To evaluate alkaline desorption as a treatment method, surface soil samples were collected and analyzed pre-and post-treatment. Samples had total petroleum hydrocarbon concentrations of 2800-63,100 mg/kg, severe water repellency, critical moisture 2-5 times above the in situ moisture content, but no acute toxicity. Thus, water repellency, rather than toxicity, is causing the loss of vegetation. Samples were treated with 0.1 N NaOH in two doses (1:3; soil/solution), with complete drainage between doses. Finally, each soil sample was washed with an equal volume or water and allowed to drain completely. For more hydrophobic samples, repeated treatments, without rinsing between each treatment, were made. Post-treatment, the samples were re-analyzed for water repellency and critical moisture content. In samples with initial water repellency values in the range of 5.0-6.7 M, the repellency was reduced 94-100 % and below critical levels to avoid soil hydrophobicity in field conditions. The other samples with initial water repellency values in the range of 10-13 M could not be recovered with single treatment, but sequential treatments reduced the hydrocarbon content up to 87 % and reduced the hydrophobicity to levels low enough or nearly low enough to avoid severe water repellency in the field. Currently, field studies are being carried out to evaluate this treatment method at the site, as a stand-alone method and in combination with organic amendment.

show abstract

“…Only a few studies focusing soil WR have been carried out in Mexico. Some of these studies deal with hydrocarbon contaminated soils in the southern Gulf of Mexico region (Adams et al, ; Guzmán‐Osorio and Adams, ). Jordán et al .…”

Section: Introductionmentioning

confidence: 99%

Spatial Gradients of Intensity and Persistence of Soil Water Repellency Under Different Forest Types in Central Mexico

et al. 2016

View full text Add to dashboard Cite

Organic residues release hydrophobic compounds to the soil that may induce soil water repellency (WR), which may inhibit infiltration and increase runoff and soil loss rates. Although there are many studies on soil WR through the world, very few investigations have been conducted in Mexican areas. This paper studies the natural background of soil WR in soils from central Mexico under representative forest types, analyzing the spatial distribution of soil WR in relation with tree canopy, vegetation cover and main soil chemical (pH, CaCO3, organic C content and exchangeable cations) and physical properties (texture). The water drop penetration time and the ethanol tests were used to assess persistence and intensity of soil WR, respectively. Although soil WR was not related with soil properties, it decreased strongly from soil below the canopy of conifers to soil below oaks. When different types of vegetation cover were considered, the proportion of water‐repellent soil increased following the sequence: bare soil < shrubs and herbaceous plants < shrubs < trees from fir, fir‐pine‐oak and pine‐oak forest. We found an inverse relation with distance to the tree trunks, contributing to create a patchy pattern of soil WR, with soils under the canopy of conifers showing the most severe WR levels. The spatial distribution of soil WR is also conditioned by microclimatic gradients, as persistence and intensity of soil WR were usually lower in shaded areas (upslope transects from the tree trunks), where soil moisture content is expected to be higher on average through the year. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Mitigation of water repellency in the treatment of contaminated muds using the chemical–biological stabilization process

Cited by 9 publications

References 23 publications

Effect of crude petroleum on water repellency in a clayey alluvial soil

Effect of crude petroleum on water repellency in a clayey alluvial soil

Treatment of water-repellent petroleum-contaminated soil from Bemidji, Minnesota, by alkaline desorption

Spatial Gradients of Intensity and Persistence of Soil Water Repellency Under Different Forest Types in Central Mexico

Contact Info

Product

Resources

About