摘要
压裂反排液是一种地下水环境污染物质,模拟特征温度及pH条件下吸附剂对反排液离子成分的吸附效果对地下水环境保护具有重要意义。本文利用VisualMINTEQ软件对压裂反排液离子成分在不同类型吸附剂条件下的浓度变化进行模拟。分析典型反排液中主要化学离子在特征温度及pH条件下,吸附剂浓度变化对阴阳离子浓度的吸附效果的影响。结果表明:(1)在模拟的条件下,带正电吸附剂可以对反排液中的阴离子进行有效地吸附去除。(2)在预处理过程中,合理调整不同种类的吸附剂浓度可以有效地改善吸附处理效果。研究结果对理解不同类型吸附剂对反排液的吸附处理效果具有一定的参考价值,为防治地下水污染提供理论指导。
The adsorption effect of adsorbents on the ionic components of fracturing backdraft is important for groundwater environmental protection,as it is a groundwater environmental pollutant.In this paper,VisualMINTEQ sofware is used to simulate the changes in concentration of the ionic composition of fracturing backdraft fluid under different types of sorbent conditions.Analysis of the effect of changes in adsorbent concentration on the adsorption effect on the concentration of anions and cations under characteristic temperature and pH conditions for the major chemical ions in a typical reverse drainage solution.The results show that:(1)Under simulated conditions,the positively charged adsorbent provides effective adsorption removal of anions from the counter drainage solution.(2)In the pretreatment process,reasonable adjustment of the concentration of different types of adsorbent can effectively improve the adsorption treatment effect.The results of the study are of some reference value in understanding the adsorption and treatment effects of different types of adsorbents on the backdraft,and provide theoretical guidance for the prevention and control of groundwater pollution.
作者
郭美叶
GUo Mei-ye(Hebei Zhangjiakou Hydrographic Survey and Research Centre,Hebei Zhangjiakou 075000 china)
出处
《地下水》
2023年第2期41-42,52,共3页
Ground water
关键词
页岩气
反排液
吸附剂
阴阳离子
Shale Gas
Anti-drainage fluid
Adsorbent
Anions and cations
