Abstract
Based on the main components in the residual soil to meet the characteristics of ceramic grain production raw materials, and combining with the principle of anti-filter layer technology for seepage control of hydraulic buildings, a lead wire cage filled with silt grains made from lake dehydration silt can be obtained. Moreover, the same-position treatment method of bed surface is desilted by this kind of ceramic lead wire cage in a reasonable structural form to improve water environment. In order to investigate the inhibition effect of this method on sediment resuspension, the effect law on water quality and the growth of indigenous microorganisms, 25 experimental groups were constructed to simulate 5 flow patterns of eutrophic lakes in this paper. We can analyze the inhibition effect of ceramic lead wire cage on sediment resuspension by monitoring the change of suspended matter content, monitoring the concentration change of ammonia nitrogen and soluble phosphorus can show the effect of ceramic lead cage on water quality, and monitoring the dissolved oxygen content can indirectly reflect the effect of the growth of indigenous microorganisms to some extent. The results show that in a certain flow mode, the ceramic lead wire cage can effectively inhibit the resuspension of the sediments, prevent the release of nitrogen and phosphorus nutrients in the sediments, and promote the growth of microbial attachment. The research results will maximize the benefits of the utilization of silt resources, and will optimize the in situ repair methods, and have broad application prospects.












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The State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi’an University of Technology, (Grant No. 2018KFKT-7).
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Luo, W., Lu, J. Inhibition of in situ coating of sediment ceramsite on sediment nutrient release of eutrophic lakes. Environ Geochem Health 44, 1471–1485 (2022). https://doi.org/10.1007/s10653-020-00720-1
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DOI: https://doi.org/10.1007/s10653-020-00720-1


