摘要
本文采用施压条件下有机磷溶液渗透通过粘性土层的试验,模拟有机磷越流通过弱透水层的过程,研究其迁移的衰减规律、降解转化的机理以及各种因子的影响规律。研究发现,进水的浓度越小,pH值越大,土层中的磷酸酶降解转化有机磷的效果越好;土层对有机磷的吸附量随着进水pH的增大而增大,进水浓度的减小而减小;对于酸性进水而言,粘性土层对有机磷的阻滞作用与进水浓度关系不大,较倚重于进水pH值的升高。
0rganophosphor was put on pressure to permeate the cohesive soil in this experiment, for simulating the process of organophosphor leakage permeating the Aquitard, in order to explore the rule of attenuation during migrating, mechanism of degradation and conversion and the affective law of kinds of factors. The results indicate that the effect of degradation and conversion will become better with the increase of pH and decrease of concentration of organophosphor; The adsorbance of clay will enhance with the increase of water pH and weaken with the decrease of initial concentration. For acidic solution, the retardation of clay for organophosphor is more rely on the increase of pH instead of the initial concentration of it.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2011年第3期86-91,共6页
Hydrogeology & Engineering Geology
基金
国家自然科学基金项目(40872154)
关键词
有机磷
弱透水层
迁移转化规律
organophosphor
aquitard
rule of transportation and conversion
