A method for remediating lead-contaminated soil by using A. philodendron

A technology of Eclipta chinensis and lead-contaminated soil, applied in the direction of restoration of polluted soil, etc., can solve the problems of low extraction amount of heavy metals, secondary pollution, influence of heavy metal precipitation recovery rate, etc., and achieves strong viability, cost saving, The effect of a short growth cycle
CN111672901BActive Publication Date: 2022-04-22CHINA THREE GORGES UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA THREE GORGES UNIV
Publication Date
2022-04-22

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Abstract

The invention relates to a method for repairing the lead-containing bottom mud of an electroplating factory by utilizing the physiological integrity and the chemical precipitation method of philodendron philodendron. The specific steps are as follows: firstly, plant Azalea philodendron on the bottom mud of the electroplating factory, and build a reservoir 5cm beside the bottom mud pool, artificially control the growth direction of Azalea philodendron, so that it extends toward the reservoir, due to physiological integration Sexual effect, philodendron philodendron will transfer to the water body and release lead ions, after a certain period of cultivation, put Na in the water body of the reservoir 3 PO 4 Carry out precipitation recovery. The invention mainly uses the Physiologically Integrated transfer of lead ions by the Physiophthora philodendron to repair the bottom mud of the electroplating plant, and the method is simple in operation and strong in feasibility.
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Description

technical field

[0001] The invention relates to utilizing the physiological integration effect of the asexual propagating plant Asteria philodendron to transfer the lead ions in the soil to the water body, and to treat the lead ions in the water body through chemical precipitation, so as to repair the lead-contaminated soil and recycle the lead ions. It belongs to the field of environmental protection. Background technique

[0002] While scientific and technological progress promotes economic development, ecological problems are gradually emerging. Soil is one of the material bases for the survival of human beings and organisms. With the expansion of industrial and agricultural activities, waste water continues to infiltrate into the soil, waste residues are dumped and piled on the soil surface, and waste gas mixed with dust enters the soil under the action of rain. , causing the soil to be polluted. Heavy metal refers to the density greater than 4.5g / cm 3 Heavy metals, i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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