KR20020067674A - A composition for enrichment and water conditioning of soil using industrial waste and process for preparation thereof - Google Patents

Abstract

PURPOSE: A soil improving and moisture controlling agent and its preparation method are provided, wherein the agent contains the inorganic materials selected from the industrial waste as a main ingredient. CONSTITUTION: The soil improving and moisture controlling agent comprises 10-30 wt% of a paper sludge; 5-15 wt% of fly ash; 10-30 wt% of white carbon; 10-30 wt% of zeolite; 20-40 w% of pearlite; and 1-3 wt% of an aqueous adhesive CMC. Also the soil improving and moisture controlling agent comprises 10-50 wt% of a paper sludge; 5-15 wt% of fly ash; 10-40 wt% of zeolite; 10-40 wt% of diatomite; and 1-3 wt% of an aqueous adhesive CMC. The preparation method comprises the steps of injecting the mixture into a rotary mixer; mixing the mixture with 50-100 rpm; making the mixture into granule phase by using an excluder; and heating and drying the granule at 130-150 deg.C for 20-30 min.

Description

A composition for enrichment and water conditioning of soil using industrial waste and process for preparation

The present invention relates to a novel soil improvement and moisture control composition and a method for producing the same. More specifically, the present invention relates to a novel soil improvement and moisture control composition based on industrial waste and a method for producing the same.

Conventionally, a number of methods for preparing artificial soil compositions for the healthy growth of various crops have been known. In particular, Korean Patent Publication No. 98-63340 discloses a method of using fly ash for fertilizing strong acidic fermentation wastes generated in seasoning factories, but this has the advantage of fertilizing strong acidic fermentation by-products. In addition, the final product contained organic materials, which could not be used in the later stages of crop growth.In addition, depending on the type of soil, it may be used in large vinyl house cultivation complexes, such as salt-integrated soils. There has been this extremely limited closure.

The present invention can be used at any stage of crop growth because it does not contain organic matter in order to improve the above disadvantages despite the advantages of major domestic patents excellent moisture control effect of the general soil as described above Of course, regardless of the type of soil or the growing stage of cultivated crops, such as large plastic house complexes with large salt concentrations and field soils of general fruit cultivation, they can be used at all times to maximize the soil improvement and moisture control effect and significantly promote crop growth. It is an object of the present invention to provide a novel soil improvement and moisture control composition composed mainly of industrial wastes and consisting only of inorganic materials.

Another object of the present invention to provide a method for producing the soil improvement and moisture control agent, another object of the present invention will become apparent by the detailed description of the following specification.

The above object of the present invention is to select the inorganic material in the industrial waste to determine its composition ratio, to prepare the desired soil improvement and moisture control composition, and then apply the soil improvement and moisture control composition of the present invention to various crop cultivation and its growth experiment Achieved by evaluating the results.

EMBODIMENT OF THE INVENTION Hereinafter, the structure and effect of this invention are demonstrated.

The present invention comprises the steps of selecting the inorganic material excellent in soil improvement and moisture control effect of industrial wastes and determining the composition ratio; Preparing a soil improvement and moisture control composition; The present invention is characterized by consisting of a step of performing the actual cultivation test and evaluating the results in order to confirm the growth promoting effect and production increase effect by applying the soil improvement and moisture control composition to a variety of crops.

The present invention is 10 to 30% by weight of paper sludge, 5 to 15% by weight of fly ash, 10 to 30% by weight of white carbon, 10 to 30% by weight of zeolite, pearlite It relates to a soil improvement and moisture control composition, characterized in that consisting of 20 to 40% by weight, 1 to 3% by weight of the aqueous adhesive CMC.

In addition, the present invention is 10 to 30% by weight of paper sludge, 5 to 15% by weight of fly ash, 10 to 30% by weight of white carbon, 10 to 30% by weight of zeolite, pearlite A) a composition comprising 20 to 40% by weight, and 1 to 3% by weight of an aqueous adhesive CMC; Mixing at 50-100 rpm; Preparing the granules in an extruder; It relates to a soil improvement and a method for producing a moisture control composition characterized in that the granular product is combined with a step of heat drying 20-30 minutes in a heat dryer at a temperature of 130 ~ 150 ℃.

The present invention is composed of 10 to 50% by weight of paper sludge, 5 to 15% by weight of fly ash, 10 to 40% by weight of zeolite, 10 to 40% by weight of diatomaceous earth, and 1 to 3% by weight of aqueous adhesive CMC. It relates to a soil improvement and moisture control composition characterized in that.

In the present invention, 10 to 50% by weight of paper sludge, 5 to 15% by weight of fly ash, 10 to 40% by weight of zeolite, 10 to 40% by weight of diatomaceous earth, and 1 to 3% by weight of aqueous adhesive CMC Introducing the constructed composition into a rotary mixer; Mixing at 50-100 rpm; Preparing the granules in an extruder; It relates to a soil improvement and a method for producing a moisture control composition characterized in that the granular product is combined with a step of heat drying 20-30 minutes in a heat dryer at a temperature of 130 ~ 150 ℃.

Paddy soils for cultivating water crops in South Korea and Southeast Asia, including Korea and Korea, continue to be acidified by the use of mineral fertilizers such as nitrogen and gari, and have shown their limitations. Excessive concentrations of salts in the soil and crop damage in the soil have been seriously affected by the use of N, P, and K chemical fertilizers, along with the use of excessive pesticides.

In particular, as the use of fertilizers and pesticides has increased rapidly with the spread of large-scale crop varieties, Korea's consumption of fertilizers in 1980 increased from only 285 kg per kilogram to 458 kg in 1990. Pesticide use increased by 80% from 5.8kg / kW in 1980 to 10.4kg / kW in 1990 (Ministry of Agriculture, Forestry and Fisheries, Ministry of Agriculture, 1994).

The present invention has been devised in view of the above problems to provide a new material of the soil reforming and moisture control composition to provide a soil modifier and a moisture control composition to test the performance and effect of the soil improvement and moisture control composition as a test material The actual cultivation test was carried out in accordance with the secret method, and the results were examined for the height, number of grains, leaf area of harvesting season, and the characteristics and quantity of maturation stage in the building.

On the other hand, plant growth promotion and growth effects, including the prevention of root diseases of wheat in the open field by the mineral soil improvement and the application of a moisture control agent of the present invention, and the growth promotion by the field test on garlic and onion among other vegetable horticultural crops The effect was confirmed.

In addition, the soil improvement and moisture control composition of the present invention was confirmed that the growth and growth promoting effects on the melon and red pepper plants with severe salt accumulation obstacles based on the actual cultivation test results.

In the present invention, the selected industrial waste is paper sludge disposed in pulp and paper mills, fly ash generated from thermal power plants, and white carbon, a by-product of rubber vulcanization accelerator production. Zeolite, pearlite and diatomaceous earth were selected as suitable raw materials for maximizing soil water retention.

The fly ash selected in the present invention is for the purpose of supplying siliceous, aluminum, calcareous, iron and the main component of the white carbon is siliceous. Therefore, fly ash and white carbon in the composition of the present invention plays a role in promoting the formation of aggregates in the soil and eventually maximizes the soil porosity. In addition, the ferrite and diatomaceous earth in the composition of the present invention are selected to make effective action in the granular product of the present invention by crosslinking with the aqueous adhesive CMC as fine powder.

Example 1: Industrial waste composition constituting the present invention soil improvement and moisture control composition (I) (unit: weight%)

Preferred composition ratio of the soil improvement and moisture control composition of the present invention is preferably a mixed composition of the upper and lower weight% of Table 1 with respect to the total 100, paper 20% by weight, fly ash 10% by weight, white carbon 18.5% by weight, zeolite 20 Most preferred were wt%, pearlite 30 wt% and CMC 1.5 wt%.

Paper sludge 10-30 Fly ash 5 to 15 White carbon 10-30 Zeolite 10-30 Pearlite 20-40 Aqueous Adhesive (Binder) 1 to 3

Example 2 Preparation of the Soil Improvement and Moisture Control Composition (I) Product of the Invention

The industrial wastes described in Example 1 were selected, collected and sorted, and each of them was put into a hopper, and then automatically put into a rotary mixer at a mixing ratio of the weights. At this time, the determination of the type and the input amount of the hopper was calculated in advance and designed to operate through the microcomputer through the memory by the program. The design and operation of such a program can be easily carried out by those skilled in the art.

The mixing speed of the component ingredients in the rotary mixer is not critical but is preferably 50 to 100 rpm.

The mixed raw material is granulated and put into an extruder with a die attached to the end for forming a granular product on a conveyor belt by a conveyor system installed on the side of the mixer. The product was dried by drying for 20 to 30 minutes in a heat dryer at 130 to 150 ° C.

At this time, the water-based adhesive used to promote the adhesion between the raw material components and granulated products in the mixer can be used a variety of CMC is most preferred.

Experimental Example 1 Investigation of Soil Chemical Characteristics and Heavy Metal Contamination of Soil Improvement and Moisture Control Composition (I) of the Present Invention

Test results of soil chemical properties and heavy metal contamination of the novel soil improvement and moisture control composition prepared according to the composition of Example 1 and the preparation method of Example 2 are shown in Table 2 and Table 3.

The pH of the product of the present invention was shown as 7.8.

Inorganic component analysis test results of the present invention soil improvement and moisture control composition Test Items unit Result Test Methods pH 7.8 Organic Mg / L Not detected Waste Process Test Method SiO ₂ % 40.2 KSE 3806-98 Al ₂ O ₃ % 13.7 KSE 3806-98 (l.c.p) Fe ₂ O ₃ % 2.36 KSE 3806-98 (l.c.p) CaO % 6.50 KSE 3806-98 (l.c.p) mgO % 1.27 KSE 3806-98 (l.c.p) K ₂ O % 1.16 KSE 3806-98 (l.c.p) Note: The experimental results of the present invention were reported by the Korea Chemical Testing and Research Institute (Tel. 2634-0011), Yeongdeungpo-gu, Seoul, Korea.

Test results for heavy metal contamination of the present invention Test Items unit Result Test Methods Cu Mg / L 0.12 Waste Process Test Method CN ^- Mg / L Not detected Waste Process Test Method Cr ⁶⁺ Mg / L Not detected Waste Process Test Method Pb Mg / L Not detected Waste Process Test Method CD Mg / L Not detected Waste Process Test Method As Mg / L Not detected Waste Process Test Method Hg Mg / L Not detected Waste Process Test Method Note: The experimental results of the present invention were reported by the Korea Chemical Testing Institute (TA: 02634-0011), Yeongdeungpo-gu, Seoul, Korea.

Experimental Example 2: Tap water culture packaging test of composition I

The soil improvement and moisture control composition I of the present invention was used as a total amount of 1ton / 10a 30 days before the rice transplanter and ceres, and then investigated the growth index of each growth stage compared to the control (inventive disregard) according to the standard fertilization method. The growth survey measured 6 weeks from the ground surface to the tip of the top leaf, and the number of grains was measured with 3 repetitions of only 3 leaf spreads, and the weight of the building was measured after drying for 3 days at 80 ℃ in a circulating hot air dryer. Yields were the yields of crude and straw produced after harvesting at three repetitions per square foot (see Tables 4-7).

Change in Height by Growth Stage (㎝) division July 5 15 July 30 July August 10 August 15 August 20 Experiment 55.2 61.2 66.8 74.2 82.2 89.5 Control 53.0 58.0 65.6 70.3 78.5 87.0

Change in number of minutes (unit: number / week) division July 5 15 July 30 July August 10 August 15 August 20 Experiment 21.3 22.0 22.2 20.5 19.9 18.8 Control 20.5 21.4 21.9 19.2 18.9 18.0

Leaf area and building weight division Leaf area (㎠) Among buildings (g / week) leaf stem ear Experiment 2492 12.8 32.4 8.1 Control 2267 11.2 31.5 7.2

Mature Crop Characteristics division Soy sauce (cm) Length (cm) Sorghum Volume of water adjustment (kg / 10a) Quantity of straw (kg / 10a) Experiment 74.8 22.2 18.3 722 812 Control 73.5 21.7 16.5 682 752

As described above, the characteristics of the crops are not large due to the improvement of paddy soil and moisture control effect from the first year of applying the present invention as confirmed through experiments, but it can be confirmed that the overall improvement is about 2 to 5%. In the case of using the present invention for more than 2 years, it was judged that the increase effect could be expected more than 20%.

Experimental Example 3: wheat disease prevention and growth promoting packaging experiment of composition I

The growth index of wheat was investigated after the composition I of the present invention was grown according to the standard fertilization method in comparison with the control group that was applied and not applied to 1ton / 10a before sowing (Tables 8 to 9).

Wheat processing effect (promoting growth) of composition I of the present invention division Mean Germinated seed count (dog) Length of buds (cm) Root Length (cm) Dry weight (mg) bud Root Experiment 30 18.2 18.7 11.2 5.9 Control 22 15.5 15.7 9.3 6.5

As a result, the wheat seeds treated with the composition I of the present invention significantly reduced the relaxation rate of diseases such as root disease (about 45% or more) and promoted growth, thereby improving the productivity by about 20% or more.

Wheat processing effect (plant growth) of the composition I of the present invention division productivity 1000 weight Weight g / ㎡ % g % g % Experimental zone (average) 121.3 148 37.1 139 1.25 152 Control (average) 104.6 127 32.2 120 0.94 115

Experimental Example 4: Application Test of Garlic and Onion Plants of Composition I

When the composition 1 of the present invention prepared according to Example 2 was subjected to 1ton / 10a packaging for the starting garlic and onions, their photosynthesis rate and transpiration rate were measured, respectively, and the results of the measurement of the live weight after harvest were shown in Table 10.

Effect of Garlic and Onion Plantation Treatment of Composition I of the Present Invention process Control Treatment LSD g % g % Invention Composition IRf Value 0.95 onion 155.1 100 222.5 ^* 144.1 49.3 garlic 25.3 100 38.6 ^* 152.2 9.8 Invention Composition IRf Value 0.82 onion 155.2 100 222.4 143.3 48.9 garlic 25.4 100 35.4 140.9 11.2 LSD: Fisher's least significant difference test (p = 0.05) *: 95% probability for signature

As is apparent from the experimental results, when the composition I of the present invention was applied, the Rf value of 0.95, and the onion and garlic were all increased by 45% or more.

Experimental Example 5: Application Experiments on Melon and Red Pepper Plants with a High Salt Integrity of Composition I

The results of cultivating red pepper plants in the experimental group and the control group that did not apply 500 kg / 10a to the base in a plastic house with high salt accumulation obstacle in Kim Sam-rye plant farm near Ilhwa city flower garden It was like eleven.

Hot Pepper Experiment division Control Treatment Remarks Pn 25.2 26.5 Photosynthesis rate μmol CO ₂ m-2S-1 Chl 2.05 2.83 Chlorophyll content (mg / g) Cs 3.91 3.93 Pore Conductance (cm / s) Growth 79 94 Length growth (cm) product 35 53 Defective quantity ()

As can be seen from the experimental results, the photosynthesis amount, chlorophyll content, and pore conductance were improved in the treatment section of the composition I of the present invention, and the deletion rate was improved by 54% or more.

Example 3 Industrial Waste Composition Constituting Soil Improvement and Moisture Control Composition (II) of the Present Invention (Unit: wt%)

Preferred composition ratio of the present invention soil improvement and moisture control agent composition is preferably a mixed composition of the upper and lower weight% of Table 12 with respect to the total 100, 38.5% by weight of paper sludge, 10% by weight of fly ash, 30% by weight of zeolite, 20% by weight of diatomaceous earth The most preferred were% (15% by weight for the main purpose of land improvement: 25% by weight for the main purpose of moisture control) and 1.5% by weight of CMC.

Paper sludge 10-50 Fly ash 5 to 15 Zeolite 10-40 Diatomaceous earth 10-40 Aqueous Adhesive (Binder) 1 to 3

Example 4 Preparation of the Soil Improvement and Moisture Control Composition (II) Product of the Invention

The industrial wastes described in Example 3 were selected, collected and sorted, and each of them was put into a hopper, and then automatically put into a rotary mixer at a mixing ratio of the weights. At this time, the determination of the type and the input amount of the hopper was calculated in advance and designed to operate through the microcomputer through the memory by the program. The design and operation of such a program can be easily carried out by those skilled in the art.

The mixing speed of the component ingredients in the rotary mixer is not critical but is preferably 50 to 100 rpm.

The mixed raw material is granulated and put into an extruder with a die attached to the end for forming a granular product on a conveyor belt by a conveyor system installed on the side of the mixer. The product was dried by drying for 20 to 30 minutes in a heat dryer at 130 to 150 ° C.

At this time, the water-based adhesive used to promote the adhesion between the raw material components and granulated products in the mixer can be used a variety of CMC is most preferred.

Experimental Example 6: Water cultivation packaging test of composition II

Using the soil improvement and moisture control composition II of the present invention 1ton / 10a 30 days before the rice transplanter as a total amount of air and ceres, the growth index of each growth stage was investigated in comparison with the control (inventive composition II disregarding tool) according to the standard fertilization method . Growth surveys were conducted on: The growth survey measured 6 weeks from the ground surface to the tip of the top leaf, and the number of grains was measured with 3 repetitions of only 3 leaf spreads, and the weight of the building was measured after drying for 3 days at 80 ℃ in a circulating hot air dryer. Yield is the yield of straw and straw after harvesting at three repetitions per square foot.

As a result, in the change (cm) of leaf length for each growth stage in the experimental and control groups, it was confirmed that the experimental group was excellent by about several%. In addition, changes in fission water (unit: dogs / week), side area and dry weight of the extraction stage, crop characteristics of the maturation period (soy sauce (cm), water length (cm), sorghum (dogs / weeks), and crude water quantity ( kg / 10a), the amount of straw (kg / 10a) also showed the same trend in the experimental and control.

As described above, it was confirmed that the characteristics of the crops were not large due to the moisture control effect of the non-soil from the first year of applying the composition II of the present invention as shown in the experiment, but the overall improvement was about 2 to 5%. It was determined that the application of the present invention for more than two years can be expected to increase more than 20%.

Experimental Example 7: wheat disease prevention and growth promoting packaging experiment of composition II

The growth index of wheat was investigated after cultivating the composition II of the present invention in accordance with the standard fertilization method in contrast to the control, which was applied and not applied to 1ton / 10a before sowing. The items to be examined are the number of germinated seeds (dog), shoot length (cm), root length (cm), dry weight of shoots and roots (mg).

As a result, the wheat seed treated with the present invention significantly reduced the relaxation rate of diseases such as root disease (about 45% or more) and promoted the growth, thereby improving the productivity by about 20% or more.

Experimental Example 8: Application of the Invention to Garlic and Onion Plants of Composition II

The composition II of the present invention prepared according to Example 4 was subjected to 1ton / 10a packaging for the starting garlic and onion, and their photosynthesis rate and transpiration rate were respectively measured.

As a result of the experiment, when the present invention was applied, in the case of Rf value of 0.95, the onion and garlic both showed the effect of increasing the growth by more than 45%.

Experimental Example 9 Experimental Application of the Invention for Melon and Red Pepper Plants with a High Salt Integrity of Composition II

Composition II of the present invention was grown red pepper plants in the experimental group and 500 kg / 10a was applied to the base in the salt house of the Kim Samrye seed farm near the flower garden in Ilsan City with a large salt accumulation obstacle.

As a result, the photosynthesis amount, chlorophyll content, and pore conductance were improved in the treatment section of the composition II of the present invention, and the deletion rate was improved by 54% or more.

According to the above examples and experimental examples, when the soil improvement and moisture control agent of the present invention was applied, it was confirmed that there is a marked growth promoting effect of the public crops among other horticultural crops, including rice and wheat, which are flowers and crops. In the present invention, the present invention was applied at the beginning of growth, but since the present invention is composed of inorganic ingredients as a main ingredient, it has an effect that does not cause growth disorders, so it can be used in various growth stages of various crops. It is a very useful invention in the improvement industry, moisture control industry, waste disposal industry and fertilizer industry.

Claims (4)

Paper sludge 10-30% by weight, Fly ash 5-15% by weight, White Carbon 10-30% by weight, Zeolite 10-30% by weight, Pearlite 20-40 Soil improvement and moisture control composition, characterized in that consisting of 1% by weight to 3% by weight, aqueous adhesive CMC. Paper sludge 10-30% by weight, Fly ash 5-15% by weight, White Carbon 10-30% by weight, Zeolite 10-30% by weight, Pearlite 20-40 Injecting a composition comprising 1% by weight and 1% by weight of aqueous adhesive CMC to a rotary mixer; Mixing at 50-100 rpm; Preparing the granules in an extruder; Soil improvement and a method for producing a water control agent characterized in that the combined drying step of the granular product in a heat dryer for 20 to 30 minutes at a temperature of 130 to 150 ℃. 10 to 50% by weight of paper sludge, 5 to 15% by weight of fly ash, 10 to 40% by weight of zeolite, 10 to 40% by weight of diatomaceous earth, and 1 to 3% by weight of aqueous adhesive CMC. Soil improvement and moisture regulator composition. Rotary composition consisting of 10 to 50% by weight of paper sludge, 5 to 15% by weight of fly ash, 10 to 40% by weight of zeolite, 10 to 40% by weight of diatomaceous earth, and 1 to 3% by weight of aqueous adhesive CMC Putting in a mixer; Mixing at 50-100 rpm; Preparing the granules in an extruder; Soil improvement and a method for producing a water control agent characterized in that the combined drying step of the granular product in a heat dryer for 20 to 30 minutes at a temperature of 130 to 150 ℃.