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Modifying agent for rare earth mine tailing cut-over land and vegetation recovery method of rare earth mine tailing cut-over land

A rare earth ore and improver technology, applied in the fields of botanical equipment and methods, fertilization methods, plant cultivation, etc., can solve the problems of poor re-greening effect, high cost, and inability to guarantee soil sources, and achieves the enhancement of soil fertility level, enhanced The effect of a solid level

Inactive Publication Date: 2017-04-05
广东中联兴环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are the following methods for regreening rare earth tailings: there are methods such as directly planting corn, fir, masson pine and eucalyptus without improvement; there are also methods of covering fertile foreign soil; there are also methods of applying a large amount of chemical fertilizers, In order to improve the regreening effect of tailing sand land; the above methods have poor regreening effect, high cost, soil source cannot be guaranteed, chemical fertilizer and tailing sand cannot co-exist, and chemical fertilizer is easy to affect the environment, causing agricultural non-point source pollution, and then affecting human beings living environment

Method used

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  • Modifying agent for rare earth mine tailing cut-over land and vegetation recovery method of rare earth mine tailing cut-over land
  • Modifying agent for rare earth mine tailing cut-over land and vegetation recovery method of rare earth mine tailing cut-over land
  • Modifying agent for rare earth mine tailing cut-over land and vegetation recovery method of rare earth mine tailing cut-over land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0147] Step A1:

[0148] Take weeds and fallen leaves, cut them into 6-7 cm long, and get mixed straw;

[0149] Take 100 kg of mixed straw, 60 kg of livestock excrement and poultry excrement, and 20 kg of human excrement, mix and stir them, and pile them into a rectangular stockpile with a height of about 0.6 meters and a width of about 2 meters. Cover the surface of the stockpile with a layer of fine soil about 5 cm, keep it for more than 7 days, and wait for the temperature of the stockpile to rise to 60-70°C.

[0150] After the temperature reaches the standard, start to calculate, turn over once every 10 days, and replenish water at the same time, until the raw materials are in a state of black, rotten, and smelly, and compost is obtained;

[0151] Tamp it tightly and seal it with soil for composting, and keep it for later use.

[0152] Step B1:

[0153] Wait for 2 days, and cover the "ground 1" with the compost obtained in step A1, and pour it into the soil layer at a d...

Embodiment 2

[0160] Step A2:

[0161] Take weeds and fallen leaves, cut them into 6-7 cm long, and get mixed straw;

[0162] Take 100 kg of mixed straw, 60 kg of livestock excrement and poultry excrement, and 20 kg of human excrement, mix and stir them, and pile them into a rectangular stockpile with a height of about 0.6 meters and a width of about 2 meters. Cover the surface of the stockpile with a layer of fine soil about 5 cm, keep it for more than 7 days, and wait for the temperature of the stockpile to rise to 60-70°C.

[0163] After the temperature reaches the standard, start to calculate, turn over once every 10 days, and replenish water at the same time, until the raw materials are in a state of black, rotten, and smelly, and compost is obtained;

[0164] Tamp it tightly and seal it with soil for composting, and keep it for later use.

[0165] Step B2:

[0166] Pulverize bamboo substances to obtain bamboo chips;

[0167] Take 20 kg of mud bamboo chips and 300 kg of tailing san...

Embodiment 3

[0179] Step A3:

[0180] Take weeds and fallen leaves, cut them into 6-7 cm long, and get mixed straw;

[0181] Take 100 kg of mixed straw, 60 kg of livestock excrement and poultry excrement, and 20 kg of human excrement, mix and stir them, and pile them into a rectangular stockpile with a height of about 0.6 meters and a width of about 2 meters. Cover the surface of the stockpile with a layer of fine soil about 5 cm, keep it for more than 7 days, and wait for the temperature of the stockpile to rise to 60-70°C.

[0182] After the temperature reaches the standard, start to calculate, turn over once every 10 days, and replenish water at the same time, until the raw materials are in a state of black, rotten, and smelly, and compost is obtained;

[0183] Tamp it tightly and seal it with soil for composting, and keep it for later use.

[0184] Step B3:

[0185] Select peat moss plants and peat in the dead layer of plants, the ratio is not required, dry until the water content i...

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Abstract

The invention discloses a modifying agent for rare earth mine tailing cut-over land and a vegetation recovery method of the rare earth mine tailing cut-over land. Through preparation of the effective modifying agent and the effective vegetation recovery method, the ecological idea and ecological means are used for achieving soil fertility recovery and vegetation recovery of the ion-type rare earth mine tailing cut-over land, and the vegetation recovery method which is good and durable in recovery effect, capable of well improving the soil fertility level, ecological and environment-friendly is provided.

Description

technical field [0001] The invention relates to the field of ecological management of rare earth mine tailings traces, in particular to an improvement agent for rare earth mine tailings traces and a vegetation restoration method thereof. Background technique [0002] The mining of ion-type rare earth ores, especially in the early days, often adopts the heap leaching process. The heap leaching process means that the ore rich in rare earths is transported from the weathered layer and semi-weathered layer under the topsoil to the heap leaching field, and is repeatedly leached by ammonium sulfate. , to obtain the rare earth mother liquor, but left behind a large area of ​​rare earth tailings. [0003] These tailings not only occupy a large amount of land resources, but also destroy the normal vegetation in and around the mining area, accompanied by serious soil erosion, resulting in local river blockage, farmland flooding, and reservoir siltation. The residual ammonium sulfate ...

Claims

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Application Information

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IPC IPC(8): C05G3/04A01G1/00A01C21/00C05G3/80
CPCA01C21/00A01G22/00C05D9/00C05G3/80C05F3/00C05F3/04C05F11/00
Inventor 吴国浩黄诗婷陈文韬梁慧芳王海波
Owner 广东中联兴环保科技有限公司
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