A kind of landscaping construction method of medium and light heavy metal polluted soil

A technology that pollutes soil and heavy metals. It is applied in the field of soil pollution control and garden architecture. It can solve the problems of being unsuitable for human consumption, lack of treatment measures, and delaying farmers' planting food, so as to achieve good tolerance or enrichment of heavy metal elements and ornamental quality. good effect

Active Publication Date: 2022-03-18
WANYUAN ECOLOGY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plants grow slowly, and are generally used to absorb heavy metals. Plants are not suitable for human consumption. Therefore, it is very delayed for farmers to grow food for some contaminated crops, and there is a lack of simple and effective specific treatment measures in practical applications.

Method used

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  • A kind of landscaping construction method of medium and light heavy metal polluted soil
  • A kind of landscaping construction method of medium and light heavy metal polluted soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1, for an area of ​​garden planning that lacks a source of soil:

[0030] Include the following steps:

[0031] Step 1. Soil sealing and isolation: transfer a certain amount of soil polluted by moderate to light heavy metals to the area where the garden landscape will be built for sealing, so as to avoid secondary pollution of the soil or affect the soil quality of the nearby soil;

[0032] Step 2, soil detection: Sampling the above soil, and measuring and recording the heavy metal content of the sampled soil by a heavy metal content measuring instrument. The content of heavy metal elements;

[0033] Step 3, plant variety screening: according to the climate of the actual geographical location, the heavy metal-enriched plants or / and heavy metal-tolerant plants suitable for planting in the place are screened (for reasons such as the climate and geographical location of each place, the adaptability of each plant is different , it is necessary to select plants tha...

Embodiment 2

[0039] Example 2, for directly dividing the polluted land into the area of ​​landscaping improvement:

[0040] Step 1. Soil sealing and isolation: Enclosure and sealing the areas with medium to light heavy metal pollution soil to avoid secondary pollution caused by the soil;

[0041] Step 2, soil detection: Sampling the above soil, and measuring and recording the heavy metal content of the sampled soil by a heavy metal content measuring instrument. The content of heavy metal elements;

[0042] Step 3, plant variety screening: according to the climate of the actual geographical location, the heavy metal-enriched plants or heavy metal-tolerant plants suitable for planting in the place are screened (according to the reasons such as climate and geographical location of each place, the adaptability of each plant is different, and it needs Combined with the local climate and geographical location to select plants that are suitable for planting and have certain ornamental value);

[...

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Abstract

The invention belongs to the technical field of soil pollution control and garden architecture, and in particular relates to a method for constructing garden landscapes in soils polluted by moderate to light heavy metals. The method includes the following steps: step 1, soil sealing and isolation; step 2, soil testing; step 3, plant variety screening; step 4, plant planting: planting the heavy metal-enriched or tolerant plants screened in step 3. In the present invention, polluted soil is used as engineering topography and planting soil in garden design, and corresponding isolation measures and long-term planting of heavy metal-enriched plants are used to reduce the heavy metal content in the soil. Since garden planning has always existed for more than ten years to several Ten years, or even hundreds of years, allows plants to have sufficient time to purify the soil. This method can not only make full use of the polluted soil, but also allow the plants to purify the polluted soil without occupying additional space. The soil is purified during the long-term growth of the plants.

Description

technical field [0001] The invention belongs to the technical field of soil pollution control and garden architecture, and in particular relates to a method for constructing garden landscapes in soils polluted by moderate to light heavy metals. Background technique [0002] The situation of heavy metal pollution in soil in many places at home and abroad is serious, which directly threatens human health and has attracted widespread attention. Various heavy metal-contaminated soil remediation technologies have become research hotspots. Phytoremediation is considered to be one of the better measures to remediate heavy metal-contaminated soil (mainly lightly polluted) because of its safety and cheapness, but the remediation period is often long. The soil slightly polluted by heavy metals has a large amount and is not suitable for chemical treatment, which has become a difficult point for treatment. [0003] There are generally two sources of urban heavy metal pollution: natural...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00
CPCB09C1/105
Inventor 张旭赵敏益吕潮松庄政睿方志
Owner WANYUAN ECOLOGY GRP
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