疏浚及生态修复技术在玄武湖的工程应用

Engineering application of dredging and ecological restoration technologyin Xuanwu Lake

针对玄武湖东南湖水域富营养化程度高等环境问题,开展玄武湖东南湖水域疏浚工程以改善水环境质量。工程实施过程中利用多种疏浚方式削减了湖底内源污染,同时对污染底泥进行了即时的减量化处置,随后在疏浚区通过水生动植物的投放和种植进行生态修复施工。工程实施结果表明,内源污染得到有效清除,底泥处置各项指标满足设计要求,经生态修复后的疏浚区内水质明显改善,可为同类治理工程提供参考和借鉴。

Aiming at the environmental problem of high eutrophication degree in the southeast Xuanwu Lake,a dredging project was carried out to improve the water environment quality.During the implementation of the project,various dredging methods were used to reduce the endogenous pollution of the lake bottom,and the polluted sediment was immediately reduced and disposed at the same time.Subsequently,ecological restoration was carried out in the dredged area through the release and planting of aquatic animals and plants.The results of the project showed that the internal pollution had been effectively removed,the indicators of sediment disposal met the design requirements,and the water quality in the dredged area had been significantly improved after ecological restoration,which could provide reference for similar treatment projects.