Study on the Transport Law of Heavy Metal Mercury in Soil Based on the HYDRUS-1D Model
In order to study the transport patterns of heavy metal mercury in different soil profiles with different textures,this paper selects a non-ferrous metal smelting enterprise site as the research object,and uses the HYDRUS-1D model to establish a heavy metal mercury transport model,simulating its transport law in the soil profile.The established model can simulate the spatiotemporal changes in the distribution and transport of heavy metal mercury in soil profiles.If the heavy metal mercury is controlled after 5.0 d of leakage,its maximum transport distance will reach 150 cm.The heavy metal mercury enters the soil and reaches a depth of 30 cm in the soil profile about 1.5 d.After about 9.5 d,it reaches the observation point of 300 cm.After about 27.0 d,it penetrates the soil zone at a constant concentration and enters the aeration zone or groundwater aquifer.There is a high risk of soil heavy metal pollution in non-ferrous metal smelting enterprises.Enterprises should propose comprehensive prevention and control measures based on their actual situation and in combination with guidelines and regulations.
mercury pollution in soilmercury transportHYDRAS-1Dnumerical simulation
万方数据
维普
