Residual water treatment system and method for dredging and water ecological restoration ships

Abstract

The invention discloses a residual water treatment system and a method for dredging and water ecological restoration ships. The residual water treatment system comprises a filtrate and sewage collection device, a coagulation unit, a magnetic separation precipitation unit and a membrane module filtration unit; the filtrate and sewage collection device is communicated with four liquid inlet pipes, and the coagulation unit comprises a coagulation tank, a feeding pipe and a stirring mechanism. The invention belongs to the technical field of residual water treatment. The disclosed residual water treatment system and the method for dredging and water ecological restoration ships are capable of ensuring that water content is lower than 70% after bottom mud dehydration after dredging through combined technology of rapid dehydration pretreatment, magnetic separation, ultrafiltration/multi-medium filtration and an membrane assembly; the domestic leading level is achieved; meanwhile, the residualwater is treated to reach the standard and recycled, the main water quality index after treatment reaches the discharge standard, pollutants and macromolecular organic matters in water can be removed, the residual water is discharged after reaching the standard, and the concentration of pollutants in the residual water is reduced.

Description

technical field [0001] The invention relates to the technical field of residual water treatment, in particular to a residual water treatment system and method for dredging and water ecological restoration ships. Background technique [0002] Ecological restoration refers to stopping human disturbance to the ecosystem to reduce load pressure, relying on the self-regulation and self-organization capabilities of the ecosystem to make it evolve in an orderly direction, or using the self-recovery ability of the ecosystem, supplemented by Artificial measures to gradually restore the damaged ecosystem or make the ecosystem develop in a virtuous cycle; mainly refers to the restoration and reconstruction of the natural ecosystem that has been damaged by natural mutations and human activities, and restores the ecosystem. The original appearance, such as deforestation, must be replanted, returning farmland to forests, allowing animals to return to their original living environment. In...

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Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a residual water treatment system and method for dredging and water ecological restoration ships, which solves the problem of ammonia nitrogen, ammonia nitrogen, and The content of COD and total phosphorus does not work well, and the scope of action is relatively limited, and the problem of not being able to treat the remaining water well

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