摘要
为了了解宁夏地区压砂地在冻融循环作用下,不同水质处理对其元素淋溶释放规律的影响,通过电感耦合等离子体发射光谱仪及电感耦合等离子体质谱仪测定了宁夏中卫市微咸水的元素含量,并通过冻融循环试验探索不同水质对压砂砾石元素淋溶释放的影响.结果表明:当水质相同时,随着冻融循环次数的增加,元素淋溶总量呈增加趋势;当冻融循环次数一定时,蒸馏水处理下的元素淋溶释放总量大于微咸水处理,微咸水在一定程度上抑制冻融循环下的压砂砾石元素淋溶释放.
In order to understand the effect of water quality treatments on leaching and release of elements in freeze-thaw cycles in sandy compacted gravel in Ningxia region,the element content of bra-ckish water in Zhongwei city of Ningxia was measured by using inductively coupled plasma emission spectrometer and inductively coupled plasma mass spectrometer.The influence of different water quality on the leaching and release of elements was explored by freeze-thaw cycle tests.The results show that when the water quality remains the same,the total amount of element released in leaching solutions increases with increasing number of freeze-thaw cycles.When the number of freeze-thaw cycles is kept constant,the total amount of element released in distilled water treatment is larger than that in brackish water treatment,and brackish water inhibits the element release to a certain extent under freeze-thaw cycle conditions.
作者
李王成
赵研
王霞
王双涛
李晨
王兴
董亚萍
LI Wangcheng;ZHAO Yan;WANG Xia;WANG Shuangtao;LI Chen;WANG Xing;DONG Yaping(Ningxia Water Saving Irrigation and Water Resources Regulation Engineering Research Center,Yinchuan,Ningxia 750021,China;Engineering Research Center of Ministry of Education for High Efficient Utilization of Modern Agricultural Water Resources in Dry Areas,Yinchuan,Ningxia 750021,China;School of Civil and Water Conservancy Engineering,Ningxia University,Yinchuan,Ningxia 750021,China)
出处
《排灌机械工程学报》
EI
CSCD
北大核心
2020年第5期506-510,共5页
Journal of Drainage and Irrigation Machinery Engineering
基金
国家自然科学基金资助项目(51169021,51569022)。
关键词
压砂砾石
微咸水
冻融循环
元素含量
元素释放
sandy compacted gravel
brackish water
freezing-thaw cycle
element content
element release
