Environment-friendly river and lake contaminated sediment dredging and solidifying continuous processing method

Abstract

The invention relates to an environment-friendly river and lake contaminated sediment dredging and solidifying continuous processing method and belongs to the technical field of dredging engineering.The environment-friendly river and lake contaminated sediment dredging and solidifying continuous processing method is characterized by comprising the continuous processing process of dredging, conveying, volume reduction, solidifying and storage of contaminated sediment, dredging, conveying, volume reduction, solidifying and storage are combined into a set of complete processing system, the contaminated sediment is dredged in the modes of conveying, volume reduction and solidifying, the solidified soil is stored, liquid is recycled or discharged, and closed assembly line continuous processingis achieved. The environment-friendly river and lake contaminated sediment dredging and solidifying continuous processing method has the advantages that the occupied space of sediment processing is small, the processing process is cyclic and closed, clean and environment-friendly production is achieved, transfer of a pollution source and secondary pollution are avoided, the production efficiencyis high, and the quality is stable and controllable.

Description

technical field [0001] The invention belongs to the technical field of dredging engineering, in particular to a continuous treatment method for environmentally friendly dredging and solidification of river and lake polluted sediment. Background technique [0002] At present, the commonly used dredging sediment treatment methods in rivers and lakes mainly include mud throwing method, dredging filling method, and utilization method. [0003] The mud-throwing method is to simply discard the dredged river and lake bottom mud in low-lying areas along the river or lake (such as fish ponds, wasteland, etc.), and carry out permanent or temporary stacking and then return to farming. This method is often used for dredging silt produced by inland rivers and lakes. This method of sludge treatment, in addition to occupying a large amount of land, may also cause secondary pollution. Therefore, before applying this method to deal with the dredged sediment, it is necessary to conduct a nec...

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention: the polluted sediment excavated from the lake has the characteristics of large volume and high quality due to its high water content after dredging, which not only causes difficulties in subsequent transportation, large volume of processing equipment, large processing site area, The problem of poor economy, and the sludge with high water content cannot meet the requirements of the final treatment and utilization of the bottom sludge

In order to solve the problem that the sediment disposal method is single in the past, a complete disposal system cannot be formed, and the comprehensive economic and environmental benefits that can be achieved are limited, the present invention provides a complete disposal process scheme, through which not only the pollution Environmentally friendly, efficient and accurate dredging, and can be connected with the sediment solidification treatment system through pipeline transportation to achieve continuous integrated disposal of sediment from initial excavation to later volume reduction and solidification

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