KR101495316B1 - Revegetation method of soil features producing acid drainage - Google Patents

Abstract

The present invention relates to a method for turning a soil slope releasing acid drainage into afforestration, comprising the steps of forming a plurality of valleys on a slope releasing acid drainage in a width direction of the slope; spreading and scattering a neutralizing organic material mixer which spreads and scatters a neutralizing organic material mixer and seeds to the inside of the valleys and accordingly grows plants inside of the valleys while neutralizing acid drainage; and inserting a solid type soluble silicic acid capsule which inserts a solid type soluble silicic acid capsule to the inside of the valley and accordingly decomposes soil, thereby inhibiting secondary inflow of acid drainage.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a method for greening drainage,

The present invention relates to a greening method of slope slope where acid drainage occurs, and it is an object of the present invention to provide vegetation quality improvement and vegetation environment improvement in an acidic soil slurry area where acid drainage occurs and to induce plant growth and ecological function The present invention relates to a method of greening a slope surface in which acidic drainage is made so as to enable the improvement of the quality of the slope.

Greening of slopes and embankment slopes occurring at the construction site is an essential item in the implementation of eco-friendly construction projects, and it can be harmonized with the surrounding natural environment by greening and has excellent economical efficiency and is widely applied not only to slope slopes but also to rock slopes . The slope guard protects the surface soil of the slope with the root of the plant and prevents the erosion, frost, and relaxation by the rainwater. In addition, the slope guard is applied for the landscape formation by the greening, seed spraying, thin vegetation- , Seed mat, and planting materials have been applied.

Korean Patent Registration No. 0284505 (name: Kohmat composition for slope-protecting planting material and greening method using the same) relates to a composition for slope-surface-protecting plant material and a greening method using the same, wherein the composition comprises 5 to 10 wt% of an acrylic latex, 20 to 20 wt.%, Cotane 10 to 70 wt.%, Sawdust or papermaking sludge 10 to 50 wt.%, Complex fertilizer 1 to 20 wt.% And optionally pigment 1 to 10 wt. A greening method in which the slope of the slope is 5 to 30 mm thick is proposed, and Korean Patent Registration No. 1224632 (name: environmentally friendly lime soil composition and construction method using the same) , The soil is prepared by mixing soil, earthworms, Bark compost, grinding powder, coco peat, microorganism, chitosan and soil stabilizer on the surface of the sloped surface The artificial soil is classified into a step of applying an artificial soil to a thickness of 1 to 10 cm and a step of setting and fixing a PVC coated net before the step of applying an artificial soil. The artificial soil is classified into 30 to 50 parts by weight of soil, 30 to 45 parts by weight of earthworm 5 to 15 parts by weight of bark compost, 5 to 15 parts by weight of pulverized material and 5 to 25 parts by weight of coco peat, 0.0001 to 0.01 part by weight of microorganism and 0.005 to 0.1 part by weight of soil stabilizer 0.1 to 1 part by weight By weight based on the total weight of the composition.

The techniques presented above are exposed to the problem of degradation of vegetation in a special geological area where acidic drainage occurs due to the general section and greening method applied to embankment slope. That is, the acid drainage generated in the lower part rises to the surface by the capillary phenomenon, and the plant planted in the upper part is destroyed.

In general, acidic wastewater is strongly acidic and has a pH of less than 4. It contains heavy metals, aluminum, iron and so on. Heavy metals, iron and aluminum contained in acidic wastewater are dissolved by oxidation of sulfide minerals and dissolved by acidic wastewater from other minerals. .

Damage caused by acidic drainage has been recognized only as a major environmental problem in the abandoned mine area. Recently, however, sulfide minerals contained in rocks or gravels excavated by ground excavation and various works in the construction site reacted with water containing atmospheric and dissolved oxygen And the drainage of strong acidity is generated, and damage cases by acid drainage are frequently occurred.

Acid drainage acidifies soil and surface water and ground water and pollutes it with heavy metal. Acid drainage causes corrosion of structure, slope collapse by promoting weathering of rock, landscape damage by sediment of red (iron oxide) or white (aluminum compound) It causes various problems such as vegetation damage. Especially, in the construction site and the abandoned mine area, acidic drainage is accompanied by soil loss and contamination spread.

Soil affected by acidic drainage has a high concentration of hydrogen ion (H +). Hydrogen ion impairs plant roots and not only inhibits growth and development, but also weakens the disease. Iron contained in acidic drainage causes acidic drainage And precipitates as iron oxide minerals on plant roots or soil surfaces. Precipitated iron oxide inhibits the air permeability of the soil and the growth of plant roots.

In the construction site where acidic drainage occurs and the abandoned mine area, there is a case where the vegetation greening which is not carried out without proper measures against acid drainage frequently occurs, and the greening method which can efficiently cover the vegetation in the acid drainage area is developed And field application is required.

Patent No. 10-0735686 Published Patent 2009-0012534

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a method and apparatus for preventing the occurrence of acidic water caused by mudstone in the slope of slope, which is difficult to secure vegetation quality and improve vegetation environment due to acidic drainage, The present invention provides a method of greening a slope in which acidic drainage occurs, which improves the soil's ability to neutralize the slope of slope, which is difficult to vegetation by acid drainage, and which effectively improves landscapes due to plant growth and effectively promotes ecological functions.

According to another aspect of the present invention, there is provided a method of forming a plurality of troughs, the method comprising: forming a plurality of troughs in a width direction of a slope on a slope surface where acidic drainage is generated; Placing a neutralized organic compound mixture and seeds inside the bone to allow vegetation inside the bone and neutralizing the acidic drainage; Inserting a solid type water-soluble silicic acid capsule into the inside of the bone to inhibit secondary inflow of the acidic water while decomposing in the soil; Thereafter, a water-soluble silicate having natural silicate as a raw material is diluted in water and sprayed in a liquid form to form a water-soluble silicate coating layer on the slope surface, thereby preventing the acidic drainage from leaking to the ground, Forming a silicate coating layer; A vegetation layer forming step of mixing the water-soluble silicate coating layer with an erosion preventing agent, a coating curing agent, a compound fertilizer and seeds, and spraying the mixture to form a vegetation layer; And a net installation step of installing a net on the vegetation layer to improve the formation of the vegetation layer and the growth of the vegetation layer.

The bone formation step is characterized in that the width of the bone is 2 to 5 cm, the depth of the bone is 2 to 3 cm, and the interval of the bone is 20 to 30 cm.

In addition, the neutralized organic mixture in the neutralizing organic mixture admixing step is composed of 50 to 70 wt% of a complex organic compound, 5 to 25 wt% of gypsum lime, 5 to 25 wt% of potassium phosphate, 3 to 8 wt% of zeolite, and 3 to 8 wt% .

In addition, the neutralizing organic compound is characterized by having 30 to 100 g per 1 m of bone.

Further, the solid water-soluble silicate capsule inserting step is characterized by inserting a solid type water-soluble silicate into a capsule made of natural pulp and inserting it into the inside of the bone.

Also, the coating layer forming step is characterized in that 0.2 g to 5 g of the water-soluble silicate per 1 m ^{2 of} slope surface area where acidic drainage is generated is diluted to 0.5 to 5 L of water and sprayed one to three times.

The vegetation material in the vegetation layer formation step is composed of 30 to 50 wt% of the cured curing agent, 10 to 30 wt% of the erosion stabilizer, 10 to 30 wt% of the compound fertilizer and 20 to 35 wt% of the seed, Mixed with 2 to 5 L of water, and sprayed on the coating layer

Also, the shade forming netting step is characterized in that a mat made of environmentally friendly biodegradable resin is interposed between the net and the net, and a net of 1.2 m2 per 1 m2 of the sliced surface area is laid to form a shade.

As described above, according to the present invention, it is possible to form a bone in the width direction of the slope surface where acidic drainage is generated, neutralize the slope surface in which acidic drainage occurs by installing a neutralizing organic compound in the inside of the bone, Coating has an effect of inhibiting leakage of acidic drainage.

In addition, a solid type water-soluble silicate capsule is injected into the bone, and the natural pulp of the solid water-soluble silicate capsule is decomposed in the soil, thereby suppressing the secondary inflow of the acidic drainage by the solid water- Sooty vegetation has the effect of providing self-sustaining ability to withstand acidic drainage.

In addition, the environmentally friendly silicates can efficiently absorb silicate, and it is possible to increase the tolerance to bacterial disease and insect damage by promoting cell growth and vegetation growth, increasing biomass, increasing beneficial microorganisms, The effect of improving and resin purification, bacteriostatic action, adsorption, decomposition and neutralization of pesticidal components, and the like are effective in efficiently growing plants and purifying soil. It is a very useful invention that improves various environmental, soil and vegetation parts as well as soil quality, such as neutralization function of acid drainage, improvement of soil and vegetation activation.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view showing a construction cross section of a slope surface greening method in which acidic drainage occurs according to the present invention,
2 is an exploded perspective view showing a net for forming a shade film according to the present invention,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The present invention relates to a method of manufacturing a composite material comprising a bone formation step of forming a plurality of troughs 11 in a width direction of a slope surface 10 on a slope surface 10 where acidic drainage is generated, And a seed to provide vegetation inside the trough (11) and to form a neutralizing function for acid drainage; and a solid organic compound mixing step of forming a solid type water-soluble silicate capsule 200) is inserted into the soil so as to inhibit the secondary inflow of the acidic drainage while being decomposed in the soil, and a solid water-soluble silicate capsule inserting step and a water-soluble silicate having natural silicate as a raw material in the slope surface (10) Forming a water-soluble silicate coating layer (300) on the surface of the water-soluble silicate coating layer (300), thereby preventing the acidic drainage from leaking to the ground and neutralizing the acidic drainage; A vegetation layer forming step of mixing a vegetation material composed of an erosion preventing agent, a coating curing agent, a composite fertilizer and seeds with water and spraying the mixture to form a vegetation layer 400, And a net installation step for installing a shade film for providing a shade formation and growth function of the vegetation layer (400).

The trough 11 is formed in the width direction of the slope 10 to prevent the loss of the neutralized organic compounding agent, seed and water-soluble silicate capsule injected into the trough 11, .

It is preferable that the troughs 11 have a width of 2 to 5 cm and a depth of 2 to 3 cm and an upper and a lower interval on the slope surface 10 is 20 to 30 cm.

As described above, since the width and depth of the trough 11 are not formed too large but are limited to 2 to 5 cm in width and 2 to 3 cm in depth as described above, Minimizing scouring.

Also, in order to form the vegetation layer (400), the vegetation material is prevented from being lost during the spraying of the vegetation material, so that the greening efficiency can be improved.

Meanwhile, the neutralized organic compounding agent 100 in the neutralizing organic compounding step may include 50 to 70 wt% of the complex organic compound, 5 to 25 wt% of the gypsum lime, 5 to 25 wt% of the potassium phosphate, 3 to 8 wt% of the zeolite, 3 to 8 wt%.

In addition, the neutralizing organic compounding agent 100 can provide 30 to 100 g per 1 m of the widthwise direction of the trough 11 to provide neutralization of acidic drainage and nutrients necessary for plant growth.

The complex organic fertilizer is a fertilizer made of plant and animal material and plays a role of fertilizer and nutrient because it contains a large amount of naturally occurring inorganic nutrients (N, P, K, etc.), which are important growth factors in plant growth.

The dolomite is a crushed product of calcareous magnesium rock, which is also called a roadmate lime, and is characterized by a high content of god (magnesium oxide) due to the mixing of magnesium carbonate, carbonated lime and high kaolin.

In addition, the assurance component amount is set to 53% of alkaline and 15% of soluble goto, and when it is mixed with acidic components, it is combined with pactic acid to produce a film and neutralize the acidity. Thus, acidic drainage It is neutralized.

That is, when the amount of the gypsum lime is less than the composition range of the present invention, the slope 10 on which the acidic wastewater is generated is not smoothly neutralized and the growth efficiency of the plant is lowered. There is a problem that the slope 10 is alkalized and the growth of plants is deteriorated.

The potassium phosphate makes it easy to grow the roots and leaves of the plants and neutralizes acidic drainage.

The zeolite also serves as a basic material for neutralizing acidity, thereby minimizing leakage of acidic wastewater.

The complex organic fertilizer and the compound fertilizer have a role of improving the biomass of the plant. When the biomass is smaller than the composition range of the present invention, the growth efficiency of the plant is lowered.

In addition, goto lime, potassium phosphate, and zeolite are basic materials for acidification and minimize acidic drainage.

On the other hand, the solid water-soluble silicate capsule 200 is configured such that a solid water-soluble silicate is contained in a capsule made of natural pulp.

Since the solid water-soluble silicate capsule 200 is composed of the strong alkaline nature of the solid water-soluble silicate capsule 200, the solid type water-soluble silicate capsule 200 neutralizes the acidic soil and is contained in the capsule made of natural pulp. It dissolves naturally after a certain period of time and melts in the capsule to prevent the acidification of the soil.

That is, since the solid water-soluble silicate capsule 200 is used, it is possible to maintain long-term neutralization after vegetation.

The solid water-soluble silicate capsule 200 having the above structure is prepared by adding 0.5 to 5 g of a solid water-soluble silicate to the inside of the capsule made of natural pulp, It is preferable to arrange one to three pieces at appropriate intervals.

On the other hand, it is preferable that 0.2 to 5 g of the water-soluble silicate is diluted to 0.5 to 5 L of water per 1 m ^{2 of} slope surface 10 where acidic drainage is generated, and sprayed 1 to 3 times.

The water-soluble silicate represents an alkaline component, and serves to neutralize the slope surface 10 where acidic drainage is generated. By forming the water-soluble silicate coating layer 300 on the surface of the soil, acidic drainage is prevented from leaking to the ground.

On the other hand, the vegetation material in the vegetation layer formation step is composed of 30 to 50 wt% of a curing curing agent, 10 to 30 wt% of an erosion stabilizer, 10 to 30 wt% of a compound fertilizer, and 20 to 35 wt% of seed, 100 parts by weight of water and 2 to 5 parts by weight of water are mixed and sprayed on the water-soluble silicate coating layer.

The coated curing agent serves to make the papermaking paper made by pulverizing paper to contain moisture required for germination of the seed.

In addition, the erosion stabilizer can be made to adhere to the soil with the paper cloth and the paper cloth, which are the curing curing agent, in the form of an adhesive, thereby suppressing the loss of the vegetation material in the soil to the utmost.

The shade forming net 500 is formed between the net 520 and the net 520 through a mat 510 made of an environmentally friendly biodegradable resin and the net 500 for forming a shade is formed on the slope surface 10 ) Area of 1.2 m < 2 > per m < 2 >.

Such a net 500 for forming a shade can avoid the direct sunlight of the sun, so that the vegetation can easily germinate due to the formation of shade in the lower vegetation and the maintenance of the water, and the installation of the net 500 for forming the shade can be avoided. The effect is to prevent the germination of the plant from slowing down or drying out.

Hereinafter, the greening method of the present invention will be described in more detail with reference to examples and comparative examples. only. These embodiments are intended to be illustrative, but not limiting, of the present invention.

[Example 1]

A slope of 3 cm in width direction and a slope of 25 cm in the height direction of the slope in the width direction of the slope of the special soil zone where acidic drainage occurs, 60 wt% of composite organic matter, 15 wt% % Of potassium phosphate, 15 wt% of potassium phosphate, 5 wt% of zeolite, and 5 wt% of compound fertilizer.

Thereafter, two water-soluble silicate capsules each containing 2 g of a water-soluble silicate in the form of a solid are placed in a capsule made of natural pulp, and then 0.5 g of a slurry surface area of 1 m ² water-soluble silicate is diluted to 2 L of water and sprayed twice . After that, vegetation material consisting of 50wt% of curing curing agent, 15wt% of erosion stabilizer, 10wt% of compound fertilizer and 25wt% of seeds was mixed with water per m ² of slope surface area, sprayed with water, and covered with a net for forming a shade. The germination rate and the coating condition of the slope at 30, 60 and 120 days after the application were observed and are shown in Table 1 below.

[Example 2]

A slope of 5 cm in width direction and 5 cm in width direction of the slope of the special soil zone where acidic drainage occurs and spaced apart at intervals of 30 cm in the height direction of the slope, 55 wt% of composite organic matter, 20 wt% % Of potassium phosphate, 15 wt% of potassium phosphate, 5 wt% of zeolite, and 5 wt% of compound fertilizer.

Thereafter, three water-soluble silicate capsules each containing 5 g of a water-soluble silicate in the form of a solid are placed in a capsule made of natural pulp, and 0.5 g of a silicate slurry having a slope area of 1 m ² is diluted in 2 L of water and sprayed twice . After that, a vegetation material consisting of 50 wt% of cured curing agent, 15 wt% of erosion stabilizer, 10 wt% of composite fertilizer and 25 wt% of seed was sprayed with 1 m ² of slope surface area and sprayed with water and covered with a net for shade formation. The germination rate and coating condition of the slope at 30, 60, and 120 days after the application were observed and are shown in Table 1 below

division Lightning time after construction 30 days 60 days 120 days Example 1 Germination rate and coverage (%) 30 45 85 Example 2 Germination rate and coverage (%) 40 60 90

As in Examples 1 and 2 of the above Table 1, it is possible to form a bone within the composition range of the present invention, to introduce a neutralized organic compound mixture, to insert a solid water-soluble silicate capsule, to spray a water-soluble silicate, It was found that the germination rate was very high in the state of progress of the greening and the germination rate was easy even in the early recording.

[Comparative Example 1]

A slope of 5 cm in width direction and a slope of 50 cm in the height direction of the slope was formed in the slope of the slope of the special slope where the acidic drainage occurred, and 35 wt% of complex organic matter and 30 wt% %, Potassium phosphate 30wt%, zeolite 2wt%, and compound fertilizer 3wt% are mixed together with the seeds.

Thereafter, 10 water-soluble silicate capsules each containing 10 g of water-soluble silicate in the form of solid pulp are placed in the capsules made of natural pulp, each of which has 10 slices per 5 m of the length of the cores, and then 1 g of water-soluble silicate having a slope area of 1 m ² is diluted in 7 L of water and sprayed twice. Since slope area of 1m ² coating per curing agent 20wt%, corrosion stabilizer 20wt%, compound fertilizer 35wt%, then the seed vegetation material consisting of 25wt% a spray mix with water gave the net cover for geuneulmak formed after construction 30, 60, 120 At the beginning, the germination rate and coating state of the slope were observed and shown in Table 2 below

[Comparative Example 2]

A slope of 5 cm in width direction and a slope of 100 cm in the height direction of the slope was formed in the slope of the slope of the special soil zone where acidic drainage occurred and 35 wt% of composite organic matter and 30 wt% %, Potassium phosphate 30wt%, zeolite 2wt%, compound fertilizer 3wt%, and seeds are mixed together and laid together.

Afterwards, 10 pieces per 5 m length of the receiving bone containing 10 g of the solid type water-soluble silicate are placed inside the capsule made of natural pulp, and then 1 g of the slurry surface area 1 m ² water-soluble silicate is diluted in 10 L of water and sprayed twice.

Thereafter, 10 g of solid form of water-soluble silicate is placed inside the capsules made of natural pulp, and 7 pieces of the water-soluble silicate are placed per 1 m ^{2. Then,} 1 g of water-soluble silicate having a slope area of 1 m ² is diluted in 10 L of water and sprayed twice. After that, a vegetation-based material consisting of 20 wt% of cured curing agent curing agent, 20 wt% of erosion stabilizer, 35 wt% of composite fertilizer and 25 wt% of seed was sprayed per 1 m ² of slope surface area, and then covered with a net for forming a shade. At the beginning, the germination rate and coating state of the slope were observed and shown in Table 2 below

division Lightning time after construction 30 days 60 days 120 days Comparative Example 1 Germination rate and coverage (%) 15 30 45 Comparative Example 2 Germination rate and coverage (%) 20 35 50

On the other hand, in Comparative Examples 1 and 2, the intervals of the bones were widely formed, and the composition range of the neutralized organic compound and the vegetation material was formed out of the composition range of the present invention. The initial germination rate and the coating condition were low, It can be seen that the degradation appears quickly.

Accordingly, the present invention forms the depth, width, and spacing of the bone appropriately, and introduces a neutralized organic compounding agent and a solid type water-soluble silicate capsule, so that the capsules made of natural pulp are decomposed even after a certain period of time, And the effect of improving the growth function of the plant by the net for forming a shade can be obtained.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(10): Slope (11): Goal
(100): neutralized organic compound (200): solid type water-soluble silicic acid capsule
(300): water-soluble silicate coating layer (400): vegetation layer
(500): a shade forming net (510): a mat
(520): Net

Claims (8)

A bone formation step of forming a plurality of bones in a width direction of a slope on a slope surface where acidic drainage is generated;
Placing a neutralized organic compound mixture and seeds inside the bone to allow vegetation inside the bone and neutralizing the acidic drainage;
Inserting a solid type water-soluble silicic acid capsule into the inside of the bone to inhibit secondary inflow of the acidic water while decomposing in the soil;
Thereafter, a water-soluble silicate having natural silicate as a raw material is diluted in water and sprayed in a liquid form to form a water-soluble silicate coating layer on the slope surface, thereby preventing the acidic drainage from leaking to the ground and neutralizing the simultaneous acidic drainage Forming step;
Forming a vegetation layer by mixing a vegetation material composed of an erosion inhibitor, a coating curing agent, a compound fertilizer, and seeds with water on the coating layer, and spraying the mixture to form a vegetation layer;
And a net installation step of installing a net on the vegetation layer to improve a shade formation and a growth function of a vegetation layer. The method according to claim 1,
The bone-
The width of the bone is 2 ~ 5cm,
The depth of the bone is 2 ~ 3cm,
And the distance between the corrugations is 20 to 30 cm. The method of claim 1, wherein
In the neutralizing organic compound mixture,
50 to 70 wt% of a complex organic compound,
Goto lime 5 ~ 25wt%
5 to 25 wt% of potassium phosphate
Zeolite 3 ~ 8 wt%
And 3 to 8 wt% of a compound fertilizer. The method according to claim 1 or 3,
Wherein the neutralizing organic compounding agent is applied at a rate of 30 to 100 g per 1 m of the bone. The method according to claim 1,
In the solid water-soluble silicate capsule inserting step,
A method for greening a slope in which an acidic drainage is generated, characterized in that a solid type water-soluble silicate is placed in a capsule made of natural pulp and inserted into the inside of the bone. The method according to claim 1,
In the coating layer formation step,
Characterized in that 0.2 g to 5 g of water-soluble silicate per 1 m ^{2 of} slope surface area where acidic drainage occurs is diluted to 0.5 to 5 l of water and sprayed one to three times. The method according to claim 1,
The vegetation material in the vegetation layer forming step may be,
Cloth curing agent 30 ~ 50 wt%
10 to 30 wt% of erosion stabilizer
Composite fertilizer 10 ~ 30wt%
20 to 35 wt% of seeds,
Wherein 2 to 5 L parts by weight of water are mixed with 100 parts by weight of the vegetation material and sprayed onto the coating layer.
The method according to claim 1,
The shade forming net installation step
The present invention relates to a method of greening a slope in which acid misting is generated by forming a mat made of an environmentally friendly biodegradable resin so as to be interposed between a net and a net and laying a net of 1.2 m 2 per 1 m 2 of the slope surface area.

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