River silt solidification technology has made progress in river dredging

             River sludge solidification technology is an integrated sludge solidification disposal technology integrating high-efficiency solidification agent solidification technology, sludge solidification equipment and process technology. It is characterized by improving the physicochemical properties of sludge and immobilizing and stabilizing harmful substances in sludge by adding high-efficiency composite solidification materials to river dredging sludge, The geotechnical properties of solidified sludge are greatly improved, which not only avoids the secondary pollution of sludge, but also realizes the goal of resource utilization of sludge; According to the physicochemical characteristics of urban river sediment, the river sludge solidification technology equipment selects efficient single shaft spiral pipe mixer, automatic powder feeder, air compressor, grid vibrating screen machine, drag pump and sludge conveying pipeline to form a comprehensive sludge solidification process technology equipment system, which not only greatly improves the efficiency of sludge solidification treatment, It also realizes the continuous and semi-automatic construction of sludge solidification treatment.

               River sludge solidification technology has a wide range of applications. It can be used for the solidification of sediment in general rivers, lakes and reservoirs, effectively solve the pollution of urban rivers, improve water quality and improve water ecological environment; It can also be used for solidification and sealing treatment of seriously polluted sediment, especially heavy metal polluted sediment, so as to reduce the secondary pollution of sediment; At the same time, it can also solidify the sediment into building materials needed for urban construction, reduce the damage to land resources, achieve the dual objectives of harmless and resource utilization of sludge, and improve the urban living environment.

            Urban river sludge has high moisture content and complex composition, and most urban river sediment contains a large number of heavy metals and other pollutants. If not handled properly, it will not only occupy a large amount of land resources, but also cause serious secondary pollution. At present, the main methods of sludge final treatment at home and abroad are landfill and abandonment, which will not only cause secondary pollution, but also occupy limited land resources. In most cities, especially in economically developed areas, the concentration of heavy metals and other pollutants in river sediment is high, and urban land resources are scarce, which makes landfill Traditional treatment methods such as abandonment are limited. Using the river sludge solidification technology can quickly solidify the polluted, flow plastic and loosely structured urban river sludge into building materials for urban construction, reduce the secondary pollution of harmful substances to the greatest extent, and realize the harmless treatment and resource utilization of sludge.