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Method for planting paspalum distichum on lead zinc ore tailing

A biscarpa paspalum and tailings technology, which is applied in the field of biscaria paspalum planting, can solve problems such as high sulfate content and water resource pollution

Inactive Publication Date: 2013-03-27
溧阳市天目湖保健品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to add a large amount of flotation reagents, especially sulfuric acid, which results in a high sulfate content in the lead-zinc ore flotation tailings that is finally discharged. In addition, the divalent iron ions in the tailings are easily oxidized into ferric ions. After being oxidized, the entire tailings are acidic, and the water flowing out of the tailings is not only highly acidic, but also has a strong oxidation and corrosion ability, which will lead to the pollution of water resources in the surrounding area where the tailings are located.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] Carry out the plantation of bispinus paspalum of the present invention in Guangdong Fankou lead-zinc mine tailings pond, carry out according to the following steps:

[0016] (1) Surface treatment of tailings: In March, the surface layer of the tailings was plowed at a depth of 15 cm. After measuring its acidity, pH=1, so the amount of borax applied to the tailings was 5 kg per square meter when plowing. Mine surface, and mix borax and tailings evenly by plowing, then place the plowed tailings for 3 days, and then level the tailings surface;

[0017] (2) Sowing: Open a ditch with a depth of 5 cm on the surface of the leveled tailings, with a row spacing of 30 cm, sprinkle the paspalum seeds in the ditch, fill it with tailings sand, and pour a sufficient amount of water;

[0018] (3) Daily management of paspalum biscarpa: water every 5 days from sowing paspalum biscarina seedlings to seedlings unearthed, usually about 20 days after seedlings emerge, and water once paspalu...

Embodiment 2

[0023] Carry out the plantation of bispinus paspalum of the present invention in Guangdong Fankou lead-zinc mine tailings pond, carry out according to the following steps:

[0024] (1) Surface treatment of tailings: In March, the surface layer of tailings was plowed at a depth of 15 cm. After measuring its acidity, pH=2, so borax was applied to the tailings according to the amount of 3 kg per square meter when plowing. Mine surface, and mix borax and tailings evenly by plowing, then place the plowed tailings for 3 days, and then level the tailings surface;

[0025] (2) Sowing: Open a ditch with a depth of 5 cm on the surface of the leveled tailings, with a row spacing of 30 cm, sprinkle the paspalum seeds in the ditch, fill it with tailings sand, and pour a sufficient amount of water;

[0026] (3) Daily management of paspalum biscarpa: water every 5 days from sowing paspalum biscarina to seedling unearthed, and the seedlings usually emerge in about 20 days. human intervention...

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PUM

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Abstract

The invention provides a method for planting paspalum distichum on lead zinc ore tailing. The surface of the lead zinc ore tailing can be protected through growth of a large amount of the paspalum distichum, so that the content of heavy metal in copper tailing is reduced, and most importantly, acidification of the lead zinc ore tailing can be prevented, thereby stabilizing the physicochemical property of the lead zinc ore tailing. In addition, a large piece of green vegetation can also bring aesthetic feeling in vision, and the landscape image of a tailing pond is changed.

Description

technical field [0001] The invention relates to a mine tailing restoration technology, and also relates to a method for planting paspalum bispinus. Background technique [0002] At present, when lead-zinc ore flotation tailings recover pyrite, sulfuric acid is mostly used as a regulator and activator for sulfur selection. After lead-zinc sulfide ore is floated sequentially, the flotation concentration of sulfur in zinc tailings is low. Therefore, it is necessary to add a large amount of flotation reagents, especially sulfuric acid, which results in a high sulfate content in the lead-zinc ore flotation tailings that is finally discharged. In addition, the divalent iron ions in the tailings are easily oxidized into ferric ions. After being oxidized, the entire tailings are acidic, and the water flowing out of the tailings is not only highly acidic, but also has strong oxidation and corrosion capabilities, which will lead to pollution of water resources in the surrounding area ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/02A01B79/00C05G3/00
Inventor 詹洪新
Owner 溧阳市天目湖保健品有限公司
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