Restoration system and restoration method for constructed wetland

Abstract

The invention relates to a restoration system and restoration method for a constructed wetland. The restoration system comprises restoration pipes, flow collecting channels and a fixing plate used forfixing the restoration pipes and the flow collecting channels; the fixing plate is provided with at least one flow collecting channel, the outer side of each flow collecting channel is provided witha plurality of restoration pipes at intervals, and each restoration pipe is provided with a plurality of plugs; and the inner side of each restoration pipe is movably connected with one correspondinginner pipe, each inner pipe can be rotated, the interior of each inner pipe is provided with a restoration liquid, and the outer wall of each inner pipe is provided with a plurality of slow-release holes. The restoration method comprises the following steps: when each inner pipe is rotated, the plugs arranged on one corresponding restoration pipe can block the slow-release holes located in one side of the corresponding inner pipe, so that the restoration liquid is slowly released towards the side of the corresponding restoration pipe; and a mixed solution obtained after the wetland is restoredby the restoration liquid is collected to the outer side of the flow collecting channels, and is discharged out from the restoration system through the flow collecting channels.

Description

technical field [0001] The invention relates to a repair system, in particular to a repair system and a repair method of an artificial wetland. Background technique [0002] Soil is an important natural resource for human survival and agricultural production. Due to the characteristics of strong toxicity and easy enrichment of heavy metals, the pollution of heavy metals to soil is difficult to recover in a short period of time. The soil in some areas is polluted by heavy metals. The heavy metal content of the crops growing on it exceeds the standard, which affects human health. Caohai is the largest natural freshwater lake in Guizhou. It is not only a typical plateau wetland ecosystem, but also an important national nature reserve. Sequential discharge, random dumping of household garbage, and extensive use of pesticides and fertilizers have led to increasingly serious soil environmental pollution around Caohai. [0003] The current solution to the repair of artificial wetl...

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Problems solved by technology

[0003] The current solution to the repair of artificial wetlands not only wastes manpower and material resources, the repair effect is not good, but also easily causes secondary pollution of the soil. When performing wetland restoration, drilling operations are required for each repair, which is time-consuming and laborious, and the restoration solution is not Quantitative and uniform release will easily lead to waste of repair fluid. After multiple repair pipes are repaired, the mixed liquid cannot be collected outside the confluence channel and extracted through water pipes. Large-scale restoration of constructed wetlands cannot be realized, and the practicability is not strong.

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