The effects of oil-spill removers (‘detergents’) on the gastropod Nucella lapillus on a rocky shore and in the laboratory

1969 ◽  
Vol 49 (4) ◽  
pp. 1067-1092 ◽  
Author(s):  
G. W. Bryan
Keyword(s):  
Oil Spill ◽  
Heavy Oil ◽  
Rocky Shore ◽  
Oil Pollution ◽  
Nucella Lapillus ◽  
Detergent Treatment

The effects of oil-spill removers (‘detergents’) on a population of the dogwhelk Nucella lapillus have been studied at Porthleven in South Cornwall, where heavy oil pollution occurred following the ‘Torrey Canyon’ incident in March 1967. Nucella is one of the shore animals which are most resistant to ‘detergent’ treatment, but at Porthleven the species was wiped out in the harbour and the majority of animals were killed on the reef nearby.

scholarly journals Production of High Purity Biosurfactants Using Heavy Oil Residues as Carbon Source

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3557
Author(s):  
Athina Mandalenaki ◽  
Nicolas Kalogerakis ◽  
Eleftheria Antoniou
Keyword(s):  
Carbon Source ◽  
Heavy Oil ◽  
Oil Pollution ◽  
Batch Reactor ◽  
Production Method ◽  
Promising Alternative ◽  
Heavy Oil Residues ◽  
Oil Residue ◽  
Increasing Demand ◽  
Heavy Oil Residue

Typically, oil pollution cleanup procedures following first response actions include dispersion. Crude oil is biodegradable, and its bioavailability can be increased when dispersed into very fine droplets by means of chemical surfactants. Although their use is widely spread in many applications, the latter may prove toxic, depending on the extent of use. The use of biological means, such as bioremediation and biosurfactants, has emerged over the past years as a very promising ‘green’ alternative technology. Biosurfactants (BSs) are amphiphilic molecules produced by microorganisms during biodegradation, thus increasing the bioavailability of the organic pollutants. It is their biodegradability and low toxicity that render BSs as a very promising alternative to the synthetic ones. Alcanivorax borkumensis SK2 strain ability to produce BSs, without any impurities from the substrate, was investigated. The biosurfactant production was scaled up by means of a sequencing batch reactor (SBR) and a heavy oil residue substrate as the carbon source. The product is free from substrate impurities, and its efficiency is tested on oil bioremediation in the marine environment. The product’s dispersion efficiency was determined by the baffled flask test. The production method proposed can have a significant impact to the market, given the ever-increasing demand for ecologically friendly, reliable, commercially viable and economically competitive environmental cleanup techniques.

scholarly journals Characterization of microbial response to petroleum hydrocarbon contamination in a lacustrine ecosystem

2021 ◽  
Author(s):  
Emilio D’Ugo ◽  
Milena Bruno ◽  
Arghya Mukherjee ◽  
Dhrubajyoti Chattopadhyay ◽  
Roberto Giuseppetti ◽  
...  
Keyword(s):  
Oil Spill ◽  
Petroleum Hydrocarbon ◽  
Oil Spills ◽  
Oil Pollution ◽  
Primary Source ◽  
Hydrocarbon Contamination ◽  
Petroleum Hydrocarbon Contamination ◽  
Microbial Response ◽  
Pollution Event ◽  
Hydrocarbonoclastic Potential

AbstractMicrobiomes of freshwater basins intended for human use remain poorly studied, with very little known about the microbial response to in situ oil spills. Lake Pertusillo is an artificial freshwater reservoir in Basilicata, Italy, and serves as the primary source of drinking water for more than one and a half million people in the region. Notably, it is located in close proximity to one of the largest oil extraction plants in Europe. The lake suffered a major oil spill in 2017, where approximately 400 tons of crude oil spilled into the lake; importantly, the pollution event provided a rare opportunity to study how the lacustrine microbiome responds to petroleum hydrocarbon contamination. Water samples were collected from Lake Pertusillo 10 months prior to and 3 months after the accident. The presence of hydrocarbons was verified and the taxonomic and functional aspects of the lake microbiome were assessed. The analysis revealed specialized successional patterns of lake microbial communities that were potentially capable of degrading complex, recalcitrant hydrocarbons, including aromatic, chloroaromatic, nitroaromatic, and sulfur containing aromatic hydrocarbons. Our findings indicated that changes in the freshwater microbial community were associated with the oil pollution event, where microbial patterns identified in the lacustrine microbiome 3 months after the oil spill were representative of its hydrocarbonoclastic potential and may serve as effective proxies for lacustrine oil pollution.

scholarly journals Effects of Adding Laccase to Bacterial Consortia Degrading Heavy Oil

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 2025
Author(s):  
Xiaoli Dai ◽  
Jing Lv ◽  
Wenxia Wei ◽  
Shaohui Guo
Keyword(s):  
Aromatic Hydrocarbons ◽  
Heavy Oil ◽  
Rate Constants ◽  
Degradation Rate ◽  
Oil Pollution ◽  
Biodegradation Rate ◽  
Saturated Hydrocarbons ◽  
Bacterial Consortia ◽  
Oil Biodegradation ◽  
Biodegradation Efficiency

High-efficiency bioremediation technology for heavy oil pollution has been a popular research topic in recent years. Laccase is very promising for the remediation of heavy oil pollution because it can not only convert bio-refractory hydrocarbons into less toxic or completely harmless compounds, but also accelerate the biodegradation efficiency of heavy oil. However, there are few reports on the use of laccase to enhance the biodegradation of heavy oil. In this study, we investigated the effect of laccase on the bacterial consortia degradation of heavy oil. The degradation efficiencies of bacterial consortia and the laccase-bacterial consortia were 60.6 ± 0.1% and 68.2 ± 0.6%, respectively, and the corresponding heavy oil degradation rate constants were 0.112 day−1 and 0.198 day−1, respectively. The addition of laccase increased the heavy oil biodegradation efficiency (p < 0.05) and biodegradation rate of the bacterial consortia. Moreover, gas chromatography–mass spectrometry analysis showed that the biodegradation efficiencies of the laccase-bacterial consortia for saturated hydrocarbons and aromatic hydrocarbons were 82.5 ± 0.7% and 76.2 ± 0.9%, respectively, which were 16.0 ± 0.3% and 13.0 ± 1.8% higher than those of the bacterial consortia, respectively. In addition, the degradation rate constants of the laccase-bacterial consortia for saturated hydrocarbons and aromatic hydrocarbons were 0.267 day−1 and 0.226 day−1, respectively, which were 1.07 and 1.15 times higher than those of the bacterial consortia, respectively. The degradation of C15 to C35 n-alkanes and 2 to 5-ring polycyclic aromatic hydrocarbons by laccase-bacterial consortia was higher than individual bacterial consortia. It is further seen that the addition of laccase significantly improved the biodegradation of long-chain n-alkanes of C22–C35 (p < 0.05). Overall, this study shows that the combination of laccase and bacterial consortia is an effective remediation technology for heavy oil pollution. Adding laccase can significantly improve the heavy oil biodegradation efficiency and biodegradation rate of the bacterial consortia.

Evaluation of biodiesel as bioremediation agent for the treatment of the shore affected by the heavy oil spill of the Prestige

2007 ◽  
Vol 147 (3) ◽  
pp. 914-922 ◽  
Author(s):  
P. Fernández-Álvarez ◽  
J. Vila ◽  
J.M. Garrido ◽  
M. Grifoll ◽  
G. Feijoo ◽  
...  
Keyword(s):  
Oil Spill ◽  
Heavy Oil ◽  
Bioremediation Agent ◽  
The Prestige

Response to the Esso Bernicia oil spill

1995 ◽  
Vol 103 ◽  
pp. 233-245
Author(s):  
Peter Foxton ◽  
Martin Heubeck
Keyword(s):  
Oil Spill ◽  
Environmental Effects ◽  
Oil Pollution ◽  
Subsequent Development ◽  
Fuel Oil ◽  
Contingency Planning ◽  
Heavy Fuel Oil

SynopsisA brief description is given of the accident to the tanker Esso Bernicia that resulted in the release of 1174 tonnes of heavy fuel oil into the harbour at Sullom Voe. The measures taken to deal with the spill and the resulting oil pollution are described and their effectiveness assessed. Aspects of the environmental effects are considered with particular reference to birds, otters and sheep. Wide-ranging inquiries were made into the cause of the incident, the adequacy of the response, and the effects of the pollution. The actions that resulted are described. Finally the significance of the event is considered in relation to the subsequent development of oil spill contingency planning at Sullom Voe, and in the wider context of Shetland.

scholarly journals Sunlight Induced Rapid Oil Absorption and Passive Room-Temperature Release: An Effective Solution toward Heavy Oil Spill Cleanup

2018 ◽  
Vol 5 (14) ◽  
pp. 1800412 ◽  
Author(s):  
Mengchun Wu ◽  
Yusuf Shi ◽  
Jian Chang ◽  
Renyuan Li ◽  
Chisiang Ong ◽  
...  
Keyword(s):  
Oil Spill ◽  
Heavy Oil ◽  
Room Temperature ◽  
Oil Absorption ◽  
Effective Solution ◽  
Oil Spill Cleanup
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