摘要
针对峡江水利枢纽工程同江防护区地下水环境可能恶化的问题,选取黏土、砂壤土、细砂做了小土柱运移试验和静态吸附试验,研究分析了铁离子在三类土壤中的运移规律及吸附模式。结果表明,铁离子在三类土壤中的吸附均符合Langmuir等温非线性吸附模式,吸附能力由强到弱顺序为黏土、砂壤土、细砂,运移速度由快到慢依次为细砂、砂壤土、黏土,可为评价峡江水利枢纽工程修建前后同江防护区地下水环境的变化提供理论依据。
The groundwater environment in Tongjiang protection zone would be deteriorated during the construction of Xiajiang hydro project. Therefore, clay, sand soil and fine sand are selected to do soil column migration test and static adsorption experiment. Then it analyzes the movement rule and adsorption mode of Fe2＋ in the three kinds of soils. The result shows that the adsorption of Fe2 ＋ is accord with isothermal nonlinear adsorption mode; the adsorptivity from strong to the weak is clay, sand soil and fine sand while migration velocity from fast to slow is fine sand, sand soil and clay. The study can provide the theoretical basis for evaluating the groundwater environmental change in Tongjiang protection zone for construction of Xiajiang hydro project.
出处
《水电能源科学》
北大核心
2011年第6期40-42,共3页
Water Resources and Power
关键词
同江防护区
地下水
铁离子
迁移规律
静态吸附试验
Tongjiang protection zone
groundwater
ferri ion
migration rule
static adsorption test
