摘要
研究水中1,3-二硝基苯在新疆原油开采区土壤中的吸附作用,探讨了其在土壤中的吸附机理及原油污染对吸附的影响.结果表明,水中1,3-二硝基苯在原土及原油污染土壤中的吸附等温线均符合Freundlich等温式.当原油含量较低时,水中1,3-二硝基苯在油污土壤中的吸附系数值略小于未污染土壤;1,3-二硝基苯在高原油含量污染土壤中的吸附系数远大于未污染土壤,原油污染减弱了1,3-二硝基苯在土壤中的迁移能力,且吸附系数增大值与原油含量呈良好的线性正相关,土壤中原油单独相对有机物的分配作用居主导地位.
The sorption of 1,3-dinitrobenzene on soils collected from crude-oil exploration area in Xinjiang was investigated to study the influence of crude oil on sorption mechanism.Results indicated that the sorption coefficients of 1,3-dinitrobenzene on soils contaminated with low concentration crude oil were lower than those on uncontaminated soils.However,the sorption coefficients of 1,3-dinitrobenzene on soils contaminated with high concentration crude oil were much higher than that on uncontaminated soil,and the increase values of sorption coefficients were positive correlated to the crude oil concentrations in soils.The translocation of 1,3-dinitrobenzene was decreased by high crude oil concentration in soils.The sorption mechanism was gradually dominated by partition of 1,3-dinitrobenzene into crude oil phase in soil.
出处
《环境化学》
CAS
CSCD
北大核心
2011年第3期658-661,共4页
Environmental Chemistry
基金
国家自然科学基金资助项目(No.40763001)
关键词
1
3-二硝基苯
土壤
原油污染
吸附机理
1
3-dinitrobenzene
soil
crude-oil pollution
sorption mechanism
