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Soil remediation and treatment method

A soil remediation and soil technology, applied in the field of soil governance, can solve the problems of long tree growth cycle, delaying the normal cultivation time of farmland, etc., and achieve the effect of improving the application effect

Pending Publication Date: 2021-12-31
李攀
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Problems solved by technology

In this technical solution, the cadmium-contaminated farmland is repaired by planting willows, which has a low repair cost, a stable, continuous and long-term repair cycle, and a small amount of artificial labor. It is a natural repair technology and brings a good ecological environment to the farmland. ; But in this technical scheme, Su Liu is a tree, and the growth cycle of the tree is longer, which delays the normal cultivation time of the farmland

Method used

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  • Soil remediation and treatment method

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Embodiment approach

[0035] As an embodiment of the present invention, the farmland is divided into square partitions of 280cm-320cm; a strip gully is dug between every two square partitions; the width of the strip trench is 45cm-56cm, Rice is planted in the square ditches; water storage tanks are dug on the edge of the farmland; in the process of land restoration and management, strip ditches are dug between the square partitions, solanum nigrum is planted in the square partitions, and rice is planted in the strip ditches The strip-shaped ditch makes the water flow better during irrigation, and at the same time, the rice planted in the strip-shaped ditch can absorb more water. At the same time, the rice is flooded from the initial planting to 15 days after the rice blooms. Water management can inhibit the amount of heavy metal cadmium absorbed by rice. Fifteen days after flowering, the heavy metal cadmium content of rice has tended to a stable level. ; At the same time, during the rainy period, t...

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Abstract

The invention belongs to the technical field of soil remediation, and relates to a soil remediation and treatment method. The soil remediation and treatment method comprises the steps of physical soil turning, phytoremediation, bioremediation, chemical improvement and maintenance treatment. An existing soil remediation and treatment mode is relatively single, and meanwhile, a simple accumulation comprehensive treatment mode is carried out, as a result, the treatment effect is still limited. According to the soil remediation and treatment method of the invention, in the phytoremediation process, square partitions are arranged, and strip-shaped ditches are dug, so that the survival conditions of solanum nigrum for remediation of the heavy metal cadmium are ensured; a mulching film is paved, so that the absorption rate of the solanum nigrum to the heavy metal cadmium is improved by improving the survival temperature of the solanum nigrum; and a soil heavy metal cadmium content distribution cloud picture is generated through monitoring, so that an interplanting mode is adjusted in real time, and the application effect of the soil remediation and treatment method is stabilized.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to a method for soil restoration and treatment. Background technique [0002] Heavy metal pollution in farmland is soil pollution caused by excessive deposition of heavy metals in the soil. Heavy metals polluting farmland soil mainly include elements with significant biological toxicity such as mercury, cadmium, lead, chromium, and metalloid arsenic, as well as elements with certain toxicity such as zinc, copper, and nickel. Mainly from mining waste residues, pesticides, wastewater, sludge and atmospheric deposition, etc. For example, mercury mainly comes from mercury-containing wastewater, cadmium and lead pollution mainly comes from smelting emissions and vehicle exhaust deposition, and arsenic is widely used as insecticides, fungicides, Rodenticides and herbicides. Excessive heavy metals can cause plant physiological dysfunction and nutritional imbalance. Elements such a...

Claims

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Application Information

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IPC IPC(8): B09C1/10G01N33/24
CPCB09C1/105G01N33/24B09C2101/00G01N33/245
Inventor 李攀崔建涛
Owner 李攀
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