期刊
MARINE POLLUTION BULLETIN
卷 118, 期 1-2, 页码 275-280出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2017.03.001
关键词
Xanthan Gum; 9500A; Oil spill; Emulsification; Dispersants; Remediation
资金
- Natural Science Foundation of Shandong Province [ZR2014DQ026]
- Laboratory Research Foundation of Fundamental Research Funds for the Central Universities [201751006]
It is necessary for chemical dispersant to disperse oil effectively and maintain the stability of oil droplets. In this work, Xanthan Gum (XG) was used as an environmentally friendly additive in oil dispersant formulation to enhance the stability and biodegradation of dispersed crude oil droplets. When XG was used together with chemical dispersant 9500A, the dispersion effectiveness of crude oil in artificial sea water (ASW) and the oil droplet stability were both greatly enhanced. In the presence of XG, lower concentration of 9500A was needed to achieve the effective dispersion and stabilization. In addition to the enhancement of dispersion and stabilization, it was found that the biodegradation rate of crude oil by bacteria was dramatically enhanced when a mixture of 9500A and XG was used as a dispersant. Because of the low environmental impact of XG, this would be a potential way to formulate the dispersant with lower toxicity. (C) 2017 Elsevier Ltd. All rights reserved.
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