| Issue |
E3S Web Conf.
Volume 261, 2021
2021 7th International Conference on Energy Materials and Environment Engineering (ICEMEE 2021)
|
|
|---|---|---|
| Article Number | 03012 | |
| Number of page(s) | 4 | |
| Section | Environmental Engineering Planning and Urban Facilities Construction | |
| DOI | https://doi.org/10.1051/e3sconf/202126103012 | |
| Published online | 21 May 2021 | |
Effects of influent concentration and different valence cations on solute preferential transport in inter-tidal zone of Yellow River Estuary
1
Ocean University of China, College of Environmental Science and Engineering, 266000 Qingdao, China
2
North China Municipal Engineering Design & Research Institute Co., Ltd, 266000 Qingdao, France
3
Beijing Jiangong Architectural Design and Research Institute, 100000 Beijing, China
* Corresponding author: 8955156@qq.com
The migration of land-based pollutants in tidal flat sediments has an important impact on the marine ecological environment. The effects of three influent concentrations and two cation valence states on the preferential transport of NO3-N in the sediments of the Yellow River Estuary were studied by soil column experiments. Results showed that the preferential flow and solute transport were more obvious with the increase of influent concentration; The solute potential was increased in the process of solute transport, which led to the rapid flow, shortened the total time, and facilitated the solute transport speed in the soil; The cation in the sediment of the Yellow River Estuary has little effect on the transport of nitrate nitrogen, and the initial penetration time of the penetration curve using Ca (NO3)2 as tracer was a little later than that using KNO3 as tracer, but it is not obvious.
© The Authors, published by EDP Sciences, 2021
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