Detoxifying Capacity of Oxidized Humic Substances in Oil-Contaminated Soils

被引：0
|
作者：
N. A. Likhacheva
E. A. Zakharova
机构：
[1] Ufa State Petroleum Technological University,
[2] Branch of the University in the city of Salavat,undefined
来源：
Chemistry and Technology of Fuels and Oils | 2021年 / 57卷
关键词：
brown coal; humic substances; detoxifying effect; bioassay method; oil contamination of soils; oxidation; detoxification level; chemical modification;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Results of a study into the oxidative modification of lignite (brown coal) humic substances of the Tyulgan deposit are presented. The detoxifying effect of the obtained substances on petroleum hydrocarbons is analyzed using a bioassay method. The study indicates a marked increase in the detoxifying capacity of the humic substances associated with their chemical modification. The greatest detoxifying effect on oil-contaminated soils, amounting to 19 and 42% at doses of 0.01 and 0.1 wt%, respectively, is observed for oxidized humic substances. Conversely, the detoxifying effect of unmodified humic substances is significantly lower: 9 and 2 % at doses of 0.01 and 0.1 wt%, respectively. Thus, the viability of using oxidized humic substances as sorbent-detoxifiers during the phytoremediation of oilcontaminated soil is shown.
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页码：487 / 491
页数：4
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