Soil remediation method

A soil remediation and soil technology, applied in the field of soil remediation, can solve the problems of low extraction rate, long time for phytoremediation, and small biomass of hyperaccumulated plants, so as to improve soil environment, high added value, and reduce the total amount of heavy metals. Effect
CN109513733AActive Publication Date: 2019-03-26SHENZHEN TECHAND ECOLOGY & ENVIRONMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN TECHAND ECOLOGY & ENVIRONMENT CO LTD
Publication Date
2019-03-26

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Abstract

The invention provides a soil remediation method. The soil remediation method comprises the following steps: step S1, plants for soil remediation are selected according to the pollution situation of to-be-remedied soil, the to-be-remedied soil is improved through an improver, then the plants for soil remediation are planted in the improved soil, and when the total salt content of the to-be-remedied soil is greater than 0.5 wt% and the Zn content is greater than 500 mg / kg, or the total salt content of the to-be-remedied soil is greater than 0.5 wt% and the Mn content is greater than 5000 mg / kg,or the total salt content of the to-be-remedied soil is greater than 0.5 wt% and the Zn content is greater than 500 mg / kg and the Mn content is greater than 5000 mg / kg, strelitzia reginae, poinsettia, robinia pseudoacacia, podocarpus macrophyllus, elaeocarpus decipiens, semperflorens, loropetalum chinense var.rubrum, michelia figo, bougainvillea or jatropha gossypifolia are selected to be used asplants for soil remediation; and step 2, the plants for soil remediation are conserved. According to the soil remediation method, the soil environment can be effectively improved, the total amount ofheavy metals in the soil is effectively decreased, and economic benefits are good.
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Description

technical field

[0001] The invention relates to the field of soil restoration, in particular to a soil restoration method. Background technique

[0002] With the development of the national economy and the improvement of people's living environment requirements, ecological restoration has been vigorously developed due to its low cost, green and environmental protection. Ecological restoration is mainly based on phytoremediation, but during restoration, the growth of plants is often affected by the soil environment (such as salt content in the soil, heavy metal content, and soil compaction). Therefore, when planting plants, the soil must be improved, and plants with tolerance must be screened and planted to ensure that the plants can grow. In addition, for phytoremediation, there are also disadvantages such as small biomass of hyperaccumulator plants and low extraction rate, which will cause a long time for phytoremediation. Regarding this issue, the applicant interplanted ...

Claims

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