摘要
建立了污染土壤预制床处理工程 ,对不同类型原油污染土壤分别进行堆腐处理 ,历时 2个阶段 ,共运行2 1 0d .当稀油、稠油、特稠油和高凝油污染土壤中石油烃总量 (TPH)为 2 5 8～ 77 2 g·kg- 1时 ,经过 5 3d(为第 1阶段 )的运行 ,TPH去除率 3 8 3 7%～ 5 6 74 % .第 2年 (为第 2阶段 )继续处理 1 5 6d ,TPH降解率达到 66 5 9%～80 96% .连续运行结果表明 ,污染土壤中易分解的石油烃污染物大部分在第 1阶段得到降解 。
A treatment engineering of prepared bed was set up for the bioremediation of oil contaminated soil with oil in this study, soils contaminated with different type of oils were treated using composting process in the prepared bed and the treatment period was divided into 2 phases with total time of 210 days. When the concentration of total petroleum hydrocarbons (TPH), which consist of thin oil, high condensation oil, special viscous oil, and viscous oil, were in the range of 25 8 ～77 2 g·kg -1 dry soil, petroleum removal rates can reach 38 37% ～56 74% by 53 days operation. In the second phase, total petroleum removal rates reached 66 59%～ 80 96% by the 156 days operation in the next year. The results showed that most hydrocarbon pollutants that are easier to be degraded were removed in the first phase, the remedying efficiency obviously dropped in the second phase.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2003年第3期74-78,共5页
Environmental Science
基金
中国科学院知识创新项目 (KZCX2 SW 416
SCXZD0 10 3 )
国家自然科学基金项目 (2 0 2 770 40 )
国家重点基础规划项目 (G19990 1180 8)
关键词
生物修复
石油污染土壤
辽河油田
堆腐
bioremediation
soil contaminated by petroleum
Liaohe Oil Field
composting process
