首页 | 本学科首页   官方微博 | 高级检索  
     

初始含水率对土壤中原油入渗的影响
引用本文:张博闻, 邵明安. 初始含水率对土壤中原油入渗的影响[J]. 农业工程学报, 2010, 26(3): 9-13.
作者姓名:张博闻  邵明安
作者单位:1.西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点试验室,杨凌 712100;2.中国科学院水利部水土保持研究所,杨凌 712100
基金项目:教育部“长江学者和创新团队发展计划”(批准号:IRT0749);中科院“创新团队国际合作伙伴计划”(流域水土过程模拟研究)资助
摘    要:为确定土壤初始含水率对原油在土壤中入渗的影响,该文利用3种土壤,根据设定不同初始含水率进行配置,开展土柱模拟试验,研究了不同初始含水率条件下原油在土壤中的入渗。试验结果表明:对于同一质地土壤,随着初始含水率的增加,原油在土壤中入渗的湿润距离和湿润推进速率均增加。原油在土壤中的入渗与土壤粉粒含量密切相关,当土壤初始含水率较低时,不同质地土壤,粉粒含量越高,原油在土壤中入渗越慢;随土壤深度增加,土壤中原油残留物的含量呈波动递减趋势;原油在土壤中入渗的湿润距离随时间的变化可用对数函数拟合,湿润推进速率与时间的关系可用Kostiakov公式拟合。

关 键 词:土壤  入渗  含水率  原油
收稿时间:2009-09-08
修稿时间:2009-12-17

Effect of initial soil water content on crude oil infiltration into soils
Effect of initial soil water content on crude oil infiltration into soils[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2010, 26(3): 9-13.
Authors:Zhang Bowen  Shao Ming'an
Affiliation:1. State Key Laboratory of Soil Erosion and Dry-land Farming on the Loess Plateau/a>;Northwest Agriculture and Forestry University/a>;Yangling 712100/a>;China/a>;2. Institute of Soil and Water Conservation/a>;Chinese Academy of Sciences and Ministry of Water Resources/a>;China
Abstract:To investigate the effect of initial soil water content on crude oil infiltration in soil, the crude oil infiltration experiments in three types of soils under different soil water content was conducted. The change of different soil water content in response to the change of infiltration was studied. Results indicated that the crude oil advance distance and the rate of advance increased with increasing of initial soil water content for a given soil type. When the initial soil water content was low, the content of silt would decelerate the crude oil infiltration process. The amount of residues left in the soils decreased with fluctuation while the soil depth increased. The relationships between the advance distances and infiltration time can be well described by a logarithmic function, while the rate of advance can be well fitted by Kostiakov function. The study provided some information for the remediation of contaminated soil.
Keywords:soils   infiltration   water content   crude oil
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《农业工程学报》浏览原始摘要信息
点击此处可从《农业工程学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号