Research Status of Phosphorus Passivation Materials in Lakes

通常认为，磷是造成湖泊富营养化的关键因子，控制其含量是湖泊治理的关键。然而，在外源磷负荷得到有效控制时，沉积物中的内源磷仍可能维持湖泊富营养化状态。底泥原位钝化技术因其操作性强、控磷效果明显，而被广泛用作湖泊内源磷的控制手段。本文综述了近年来关于湖泊沉积物磷钝化材料的研究状况，包括常见钝化材料的种类、钝化控磷的环境影响因素，以及存在的问题，并对未来研究方向进行了展望，以期为湖泊沉积物污染治理提供科学依据和技术支持。It is generally believed that phosphorus is the key factor causing lake eutrophication, and controlling its content is the key to lake management. However, when the external phosphorus load is effectively controlled, the endogenous phosphorus in the sediment may still maintain the eutrophication state of the lake. In-situ passivation of sediment is widely used as a control method for phosphorus in lakes because of its strong operability and obvious phosphorus control effect. In this paper, the research status of phosphorus passivation materials in lake sediments in recent years is reviewed, including the types of common passivation materials, environmental factors affecting phosphorus passivation control, and existing problems, and the future research direction is prospected, in order to provide scientific basis and technical support for lake sediment pollution control.