A repairing device and repairing method for heavy metal ions in constructed wetlands
A technology of heavy metal ions and artificial wetlands, which is applied in the restoration of polluted soil and adaptation to climate change. It can solve the problems of poor restoration effect, waste of manpower and material resources, and poor sustainability of heavy metal ion restoration, so as to facilitate replacement, improve flushing effect, Improve the effect of the repair effect
Active Publication Date: 2021-04-30
GUIZHOU MINZU UNIV
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Problems solved by technology
[0003] Traditional heavy metal restoration does not pre-bury the restoration device in the wetland for a long time, and drilling operations are required every time the restoration is performed, which wastes manpower and material resources, and the vertical gradient of heavy metal ions in wetlands at different depths cannot be measured during the restoration process. Repairing, the repairing effect is poor, the repairing is not performed by slow release through slow release, and the repairing duration of heavy metal ions is poor
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[0035] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.
[0036] like Figure 1-4 As shown, a device for repairing heavy metal ions in constructed wetlands includes: a net bag 1 , a cylinder body and a cavity body 3 .
[0037] Specifically, the net bag 1 is placed inside the cylinder, aggregate 5 and fine material 6 are mixed inside the net bag 1, a slow-release film 4 is arranged on the side wall of the cylinder body, and the cavity 3 is arranged inside the cylinder body under the net bag 1 , the outside of the cavity 3 is provided with a number of liquid outlet holes 7 at intervals, and one side of the cavity 3 is connected to the port of the cylinder through the pipe 2; repairing particles are pl...
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The invention relates to a repairing device and a repairing method for heavy metal ions in constructed wetlands, comprising: a net bag, a cylinder body and a cavity; the net bag is placed inside the cylinder body, and the inside of the net bag is mixed with aggregates and fine particles There is a slow-release film on the side wall of the cylinder, the cavity is located inside the cylinder and below the net pocket, a number of liquid outlet holes are arranged at intervals on the outside of the cavity, and one side of the cavity is connected by pipes to the port of the cylinder; repairing particles are placed in the net pocket, and the repairing particles are mixed in the gap between the aggregate and the fine material.
Description
technical field [0001] The invention relates to a restoration device, in particular to a restoration device and restoration method for heavy metal ions in artificial wetlands. 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] Traditional heavy met...
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IPC IPC(8): B09C1/08
CPCY02A40/22
Inventor 朱四喜杨秀琴吴云杰
Owner GUIZHOU MINZU UNIV