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Landscape in-situ combined remediation method for fluorine-contaminated soil

A technology of combined restoration of contaminated soil, applied in the field of soil restoration, can solve the problems of high restoration cost and secondary pollution, and achieve the effect of restoration, promotion of leaching, and low cost

Inactive Publication Date: 2019-06-07
QUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of repairing by adding a repairing agent has problems such as high repairing costs and easy to cause secondary pollution.

Method used

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  • Landscape in-situ combined remediation method for fluorine-contaminated soil
  • Landscape in-situ combined remediation method for fluorine-contaminated soil

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Embodiment Construction

[0035] The following are specific embodiments of the present invention in conjunction with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0036] Such as figure 1 with figure 2 As shown, a landscape-type in-situ joint remediation method for fluorine-contaminated soil includes the following steps:

[0037] A. Preparation of enriched mixed bacteria suspension: Prepare enriched mixed bacteria suspension from fluorine-containing soil and activated sludge of wastewater treatment plant in the fluorine industrial park, which specifically includes the following sub-steps: A1. Combine fluorine-containing soil and fluorine industry The activated sludge of the wastewater treatment plant in the park is placed in a 30°C constant temperature incubator for 3 days; A2. Take a small amount of fluorine-containing soil in the incubator, and add the activated sludge from the wastewater tre...

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Abstract

The invention provides a landscape in-situ combined remediation method for fluorine-contaminated soil, and belongs to the technical field of soil remediation. The method solves the problem of high costs of soil remediation in the prior art. The landscape in-situ combined remediation method of the fluorine-contaminated soil is characterized by comprising the following steps: A, preparing an enrichment mixed bacterial suspension; B, cultivating mixed acid-forming bacteria; C, performing fermentation to obtain an acid-forming bacterial fermentation liquid; D, activating the fluorine-contaminatedsoil; E, laying fluorine-hyperaccumulation landscape plants; F, laying electrodes; and G, installing a solar power supply system. The method provided by the invention has the advantages of low costs and less pollution, and can promote conversion and absorption of effective state fluorine, thereby realizing in-situ landscape remediation of the fluorine-contaminated soil.

Description

Technical field [0001] The invention belongs to the field of soil restoration, and relates to a landscape type in-situ joint restoration method for fluorine-contaminated soil. Background technique [0002] Fluorine is an essential trace element for humans and animals, and its trace intake can promote the growth and development of children and prevent dental caries. The fluorine-containing three wastes produced in iron and steel smelting, phosphate fertilizer production and fluorine chemical industries enter the environment through sedimentation and leaching, causing soil and groundwater pollution, being absorbed and accumulated by plants and other crops, resulting in a decline in crop yield and quality, and damage to human bodies The body's metabolism is balanced, and symptoms such as fluorosis, dental fluorosis, and bone fluorosis appear. [0003] Fluorine exists in various forms in the soil, which can be divided into total fluorine, water-soluble fluorine, resin-exchanged fluori...

Claims

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Application Information

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IPC IPC(8): B09C1/10B09C1/08
Inventor 沈晓莉曾惠明徐天有李辉林张宝华
Owner QUZHOU UNIV
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