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Ecological restoration method for lead-polluted water body

A technology for ecological restoration and lead pollution, applied in water pollutants, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as chemical reagents and microbial residues, secondary pollution of water bodies, etc.

Pending Publication Date: 2021-07-06
XIAN AERONAUTICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the problem with the above method is that although the use of chemical reagents and microorganisms can temporarily improve water quality, in the long run, chemical reagents and microorganisms will remain in the water body, causing secondary pollution of the water body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of ecological restoration method of lead polluted water body, comprises the following steps:

[0029] Step 1, measuring the total water volume of the target water body and the divalent lead content in the target water body; the divalent lead content is 25.4 mg / L; a microflow circulation pump is set in the water body to oxygenate the water body and the water body microcirculation;

[0030] Step 2, build a symbiotic system: plant aquatic plants in the water body, and set a net cover on the plant trunk, the net cover includes a net shell and a non-woven fabric attached to the inner wall of the net shell, the The mesh shell is connected by two parts and half cylinders through locks. The diameter of the mesh sleeve is 3cm and the length is 5cm. The number of mesh sleeves for each plant is 1; according to the total water volume of the target water body and the number of plants in the water Throw in Rhodococcus CGMCC No.3276, a microorganism capable of degrading lead, a...

Embodiment 2

[0035] A kind of ecological restoration method of lead polluted water body, comprises the following steps:

[0036] Step 1, measure the total water volume of the target water body and the divalent lead content in the target water body; the divalent lead content is 28.7mg / L; a micro-flow circulation pump is set in the water body to oxygenate the water body and the water body is microcirculated;

[0037] Step 2, build a symbiotic system: plant aquatic plants in the water body, and set a net cover on the plant trunk, the net cover includes a net shell and a non-woven fabric attached to the inner wall of the net shell, the The mesh shell is connected by two parts of semi-cylinders through locks. The diameter of the net cover is 5cm and the length is 10cm. Throw in Rhodococcus CGMCC No.3276, a microorganism capable of degrading lead, and cultivate it into a bacterial suspension after purchasing the corresponding bacterial species, and carry out counting of live bacteria. The concen...

Embodiment 3

[0042] A kind of ecological restoration method of lead polluted water body, comprises the following steps:

[0043] Step 1, measuring the total water volume of the target water body and the divalent lead content in the target water body; the divalent lead content is 27.5 mg / L; a microflow circulating pump is set in the water body to increase oxygenation of the water body and the microcirculation of the water body;

[0044] Step 2, build a symbiotic system: plant aquatic plants in the water body, and set a net cover on the plant trunk, the net cover includes a net shell and a non-woven fabric attached to the inner wall of the net shell, the The mesh shell is connected by two parts and half cylinders through locks. The diameter of the mesh sleeve is 3cm and the length is 5cm. The number of mesh sleeves for each plant is 1; according to the total water volume of the target water body and the number of plants in the water Put in Pseudomonas stutzeri, a microorganism capable of deg...

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Abstract

The invention belongs to the technical field of ecological restoration, and particularly relates to an ecological restoration method for a lead-polluted water body. The method comprises the following steps: measuring the total water quantity of a target water body and the content of divalent lead in the target water body; constructing a symbiotic system: planting aquatic plants in the water body, sleeving a net cover on a trunk of the plant, putting a microbial liquid capable of degrading lead into the water according to the total water quantity of a target water body and the number of plants, and enabling the microbial liquid to cover more than 90% of the area of the inner wall of the net cover; constructing a food web system: stocking fishes, shells and algae-eating animals into the target water body according to the total water quantity in the target water body and the number of plants planted in the step 2; and carrying out ecological cycle maintenance: fishing the thrown fishes and shells after the fishes and shells are mature, then replacing the net cover, sleeving a new net cover on the plant trunk, and throwing new microorganisms. According to the invention, the fed chemical reagents and microorganisms are fully utilized and can be recycled, so that secondary pollution of the water body is prevented.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration, and in particular relates to an ecological restoration method for lead-polluted water bodies. Background technique [0002] Among the heavy metal pollution in water, the problem of lead pollution is particularly prominent. Lead can cause adverse effects on many human organs, especially the human lungs, kidneys, reproductive system, and cardiovascular system. Its adverse effects are mainly manifested as mental decline, kidney damage, infertility, miscarriage in pregnant women and high blood pressure. Lead is also very harmful to children. Therefore, it is particularly necessary to remediate lead pollution in water bodies. [0003] In the prior art, common methods for remediating lead-polluted water bodies include chemical reagent methods and microbial methods. The chemical reagent method is to add lead adsorption reagent or flocculation reagent to the polluted water body to redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34C02F101/20C02F101/38
CPCC02F3/327C02F3/34C02F2305/06C02F2101/20C02F2101/38C02F2209/06
Inventor 李雅方向青闫安成范文雯李瑞娟金虹伯李嘉豪侯小丫李治华李赞文
Owner XIAN AERONAUTICAL UNIV
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