摘要
废弃油基钻井泥浆（Wasted Oil-based Drilling Slurry,WODS）浸出液含有较高浓度的柴油成分,长期露天堆放的WODS存在污染土壤/地下水的风险。利用柴油模拟WODS石油污染物开展土壤迁移模拟研究,发现现场土壤对柴油组分的吸附能力很强,WODS堆放2~7年后对土壤的垂向污染距离达到30 cm。〈n C10正构烷烃易挥发所以土壤迁移较弱;〉n C23正构烷烃易被土壤截留;n C11-n C23正构烷烃易在土壤中迁移。
The leachate of wasted oil-based drilling slurry （WODS） contains high-concentration diesel. Long-time piled WODS may cause the risk of subsurface pollution. The transporting in site soil of petroleum pollutants from WODS was simulated using diesel in this study. The results showed that the diesel was strongly adsorbed by site soil. Only 30 cm soil were vertically polluted by 2-7 years＇ piled WODS. 〈nC10 n-alkanes were mainly volatilized instead of transporting in site soil. 〉nC23 n-alkanes and nC11-nC23 were prone to trap and transport by site soil.
出处
《广东化工》
CAS
2015年第8期69-71,共3页
Guangdong Chemical Industry
基金
中国政法大学青年教师学术创新团队资助项目(No.1000-10814340)
关键词
废弃钻井泥浆
柴油
土壤
迁移
模拟
wasted oil-based drilling slurry
diesel soil
transport
simulation.
