KR100567018B1 - Method for Purifying Water Pollutant Using Plant - Google Patents

Abstract

The present invention relates to a method for purifying water using plants which promote the growth and activity of plants by improving plant growth and activity by coating and planting useful microbial groups that promote plant growth and enhance activity. The water purification method according to the present invention comprises the steps of: preparing a tacky useful microbial group solution by mixing a useful microorganism group to promote the growth and activity of a purified plant and a pressure-sensitive adhesive for maintaining the useful microorganism on the plant growth site; Applying the adhesive useful microbial solution to the growth site of the plant; Drying the tacky useful microbial solution such that the tacky useful microbial solution applied to the plant does not flow down from the plant; And planting the plants coated with the adhesive useful microorganisms in a place where water purification is required to purify the water quality through the growth of the plants. Characterized in that it comprises a. Preferably, as the plant, a reed having excellent water purification ability selected on the basis of water purification ability may be used. As the pressure-sensitive adhesive, a liquid obtained by mixing water with fine soil such as clay may be used.

Description

Method for Purifying Water Pollutant Using Plant}

1 is a reed basement photo of an exemplary plant to be applied to the present invention,

Figure 1A is a photographic view before applying the adhesive useful microbial group,

Figure 1B is a photographic view of the adhesive useful microbial group is applied,

2 is a graph of change in length growth of reeds,

3 is a final biomass graph of reeds,

4 is a graph of total nitrogen content of reeds by organs

5 is a graph of the total phosphorus content of each reed organ

6 is a graph showing the nitrogen removal rate of reeds

7 is a graph showing the phosphorus removal rate of reeds

(Technology)

The present invention relates to a water purification method using a plant, and more particularly, a method for purifying water quality by passing wastewater through planted plants, by applying a useful microorganism group that promotes plant growth and increases activity to plants. Thus, the present invention relates to a water purification method using plants that promote the growth and activity of plants to improve their purification capacity and rate.

(Background)

As the awareness of water pollution changes, more attention and efforts are focused on reducing water pollution, and the water pollution status is being improved to some extent through this effort.

However, until now, the main treatment for water pollution prevention has been mainly limited to the decomposition of macromolecular organic substances, and the removal efficiency is relatively low for nutrients such as phosphorus (P) and nitrogen (N) that cause eutrophication in stagnant waters. It was low.

Recently, as a method of water purification (removal of water pollution sources), artificial wetlands and lakes formed by planting plants are of interest. In general, artificial wetlands or shores, such as reefs, aquatic plants, such as reeds, ropes, and babies, and aquatic plants, such as dried, colanders, and water lilies, serve as habitats and nutrient sources for aquatic plants. It consists of gravel and soil.

In other words, for example, by planting plants that are effective for water purification at the edges of rivers, artificial wetlands (hoists) are formed to reduce the flow rate and secure the stagnation time to purify water quality using plants.

These artificial wetlands or shores are located at the point where the aquatic and terrestrial ecosystems meet, and various vegetation develops, and various species of aquatic insects and microorganisms inhabit them and maintain more biomass than other places and have high productivity per area. In view of this, artificial wetlands and shores are thought to be able to reduce the eutrophication of fresh water and to contribute to the efficient management and use of water resources.

However, in order to achieve the purpose of purifying water quality using artificial wetlands or lakes, the quality and quality of waters through natural wetland structures and functions in addition to the information on the physicochemical characteristics and the cost of the construction of artificial wetlands or lakes. In addition to selecting suitable species for removal of contaminants, studies should be conducted to increase the productivity, nutrient absorption, and these functional aspects of the target species.

In addition, the water purification capacity of wetlands has varied results depending on the climate, wetland type, biomass, inflow water quality, water depth, residence time, wetland operation period and maintenance status. It can be said that it is the residence time that can remove the water pollution source and the processing capacity of the plant.

At present, it is true that artificial wetlands or lakesides contribute to water purification to some extent, but there are insufficient measures to reduce the pollutant removal efficiency due to the increased load of water pollution sources and short residence times. Therefore, the water quality of the outflow water that has passed through the artificial wetland is rather worse.

After all, the success or failure of artificial wetlands for the purpose of removing water pollution can be considered to be the source of pollutant treatment of aquatic plants. However, when only aquatic plants are applied as in the past, there is a limit to the water purification efficiency that can be treated per unit area. As a result, there are many difficulties in the existing method, such as the creation of artificial wetland of a larger area.

As is well known, high concentration of leachate flows out of garbage when living wastes such as food waste are accumulated, and such leachate is treated by the physicochemical and biological treatment process within the allowable discharge standard by water pollution prevention method. It is a number.

Generally, the process of treating leachate with leachate treatment water includes: ① denitrification / nitrification (injection of sodium hydroxide, sulfuric acid, antifoaming agent, methyl alcohol), ② primary precipitation (concentration and dehydration), ③ coagulation miscation (sodium hydroxide, sulfuric acid, Ferrous sulfide, polymer and antifoaming agent), ④ secondary precipitation (concentration and dehydration), ⑤ peptone oxidation (sodium hydroxide, sulfuric acid, ferrous sulfide, hydrogen peroxide, antifoaming agent, polymer, methyl alcohol, peptone injection), ⑥ activated carbon adsorption, ⑦ It consists of a series of processes including tertiary sedimentation, and river discharge as the final leachate treatment water. When the degree of contamination between the leachate and the leachate in the case of such treatment is compared with the concentration, it is shown in Table 1 below.

Comparison of leachate and leachate treated water by item Item Leachate Leachate Treatment Water Emission allowance standard Hydrogen ion concentration (pH) 7.5 7.1 5.8 to 8.0 Biological Oxygen Requirements (BOD) 6,397 9 70 Chemical Oxygen Requirements (COD _Cr ) 10,065 184 800 Suspended solids (SS) 211 8 70 Total Nitrogen (T-N) 1,679 163 - Ammonia nitrogen (NH ₃ -N) 1,443 7 100 Total Person (T-P) 18.04 0.09 8 Cu 0.128 0.005 3.0 CD 0.001 0 0.1 Pb 0.030 0.002 1.0 As 0.001 0 0.5 Cr ⁺⁶ 0.101 0 0.5 Hg 0 0 0.005 CN 0.003 0 1.0

As shown in Table 1, although many items of leachate treatment water meet the effluent acceptance criteria, the inspection and criteria for oxidative induction and chemicals generated by various substances added in the treatment process are none. Therefore, stable discharge of the leachate treatment water is required by forming a long drainage channel or artificial bog artificially before the discharge of the leachate treatment water and discharging it after biological treatment using the plant.

An object of the present invention is to solve the problems associated with the utilization of wetlands planted with conventional plants for the purpose of removing water sources as described above, by increasing the capacity of water pollution per unit area of the wetlands, In the treatment of water pollution source, it is possible to treat with relatively narrow wetland area and shorter residence time, to improve the land security problem and cost problem for wetland, and to solve the difficulties caused by long residence time requirement.

According to the present invention, there is provided a water purification method using plants, through which the waste water is purified to cleanse the water quality.

In the water purification method using a plant according to the present invention, a useful microorganism group solution is prepared by mixing a useful microorganism group which promotes growth and improves the activity of a purified plant and an adhesive which maintains the useful microorganism group at a growth site of the plant. Doing; Applying the adhesive useful microbial solution to the growth site of the plant; Drying the tacky useful microbial solution such that the tacky useful microbial solution applied to the plant does not flow down from the plant; And planting the plants coated with the adhesive useful microorganisms in a place where water purification is required to purify the water quality through the growth of the plants. Characterized in that it comprises a.

To the wholeness plants used in the water purification process according to the invention, wholeness reed known as aquatic plants (Phragmites australis), Typha (Typha angustifolia), portions (Typha orientalis), dalppuri pool (Phragmites japonica), line (Zizania latifolia ), Scripus triqueter , yellow iris ( Iris pseudoacorus ), iris ( Acorus calamus ), lotus ( Nelumbo nucifera ), water lily ( Nymphaea tetragona ) can be applied, preferably reeds And, more preferably, by testing the water purification capacity can be applied to select the reed appeared to be excellent water purification capacity.

The effective microorganism (EM) used in the water purification method according to the present invention, developed for the purpose of increasing agricultural productivity, lactic acid bacteria (genus Lactobacillus), yeast (genus Sacharomyces), photosynthetic bacteria (Photosynthetic bacteria), It is a microbial group composed of Actinomyces and Filamentous fungi. It produces enzymes and physiologically active substances that activate plant cells. In the present invention, a commercially available useful microorganism group having such a function can be purchased and used.

As the pressure-sensitive adhesive used in the water purification method of the present invention, the useful microorganism group can be maintained in a state of being adhered to and applied to plants without being adversely affected after planting and growth of the plant and growth of the useful microorganism group. If so, there is no particular limitation, and for example, a solution obtained by mixing soil of fine particles such as clay (kaolin) with an appropriate amount of water can be used.

The water purification method according to the present invention is a potential for growth and activity for water purification of planted plants, by removing the conventional method of purifying water quality by simply spraying the underground diameter or seed of aquatic aquatic plants on artificial wetlands. It is characterized by doubling the water pollution purification efficiency by artificially increasing, so that the plants planted in the contaminated area are less stressed and its growth activity is increased, thus removing the water pollution source more efficiently.

The main action of the purification method according to the present invention is to efficiently remove water pollutants in a short time, that is, to improve the ability to remove nitrogen (N) and phosphorus (P), and to increase the transparency of water quality. .

The application of the water purification method according to the present invention, the landfill leachate discharge area, sewage treatment, sewage treatment plant treated water discharge, domestic sewage discharge, the sewage discharge for reuse, polluted rivers, and other water pollution source Artificial marshes and shores.

Hereinafter, the water purification method according to the present invention will be described in more detail with an example of treating leachate water using reeds.

As is widely known, reeds are waterborne aquatic plants that grow on the edges of rivers and have been used to remove water pollutants and cleanse rivers by planting them in artificial wetlands or lakes. In order to form reed colonies and pass contaminated water through these reed communities, water pollution sources have been removed.

Currently, reeds distributed in Korea show various growth patterns according to the characteristics of their habitats, and show differences in height, biomass, fruiting rate, germination rate, and organic absorption ability. This is thought to have been changed for a long time by the determination of internal and external traits manifested by adaptation to the ecological environment of unusual habitats.

Accordingly, the present inventors collect reed populations inhabiting landfills, brackish waters, freshwater areas and abandoned mine areas in order to select populations useful for the purposes of the present invention from various reed populations distributed and inhabited in various regions, and these reed populations are collected. By confirming the genetic diversity using the DNA, and culturing in the leachate treatment water of landfills containing a large amount of nitrogen (N) and phosphorus (P), which causes water pollution, First, reed populations were selected that grew well in landfill leachate.

The adhesive useful microorganism group was applied to the underground diameter of the selected reed population at various concentrations and planted together with the reed not coated with the adhesive useful microorganism group to purify nitrogen (N) and phosphorus (P) in the leachate treatment water. , The content of nitrogen (N) and phosphorus (P) in the culture soil was compared.

Example 1 Culture Conditions of Reed

As an artificial soil for planting reeds, in order to make the soil resemble the soil of reed habitat, 80% of river sand (0.2 ~ 0.02㎜) and 10% of BioCom (trade name) and Green Power (trade name), which are artificial soils, are evenly distributed. The mixture was used, and an incubator made of 0.125 m 3 (0.5 × 0.5 × 0.5m) stainless steel material was used for cultivation of reeds.

The incubator was formed into a structure in which the leachate treatment water from the top was collected downward through the soil layer and the micro filter, and the leachate treatment water thus collected was fed back to the incubator by a pump from a sump equipped with a water level gauge. About 0.075 m 3 of soil was added. The flow rate circulated at this time was maintained at about 3-4 l per hour.

The culture was carried out in a thermostat that can maintain a constant culture conditions. The conditions of the thermostat were incubated at a temperature of 18-27 ° C, a relative humidity of 70-80%, a daytime of 16 hours, a night time of 8 hours and a luminous intensity of 1,300-1,500 μmol · m ⁻² · s ⁻¹ to an environment suitable for reed growth. .

Example 2 Planting of Reeds

As shown in Figure 1, the basement of the reed was collected and cut about 3 cm around the bud (bud) in each node. The reed basement was planted 25 individuals in each incubator at about 5cm deep in artificial soil.

As a pressure-sensitive adhesive for applying a useful microorganism to the underground diameter of the reed growth area, a white earth solution was used. Specifically, 100 g of distilled water was added to 100 g of clay, mixed uniformly using a mixer, and 100 ml of the useful microorganism group was added thereto to prepare a tacky useful microorganism solution. The useful microorganism group was applied to the surface of the basement by immersing the reed basement into the adhesive useful microorganism solution thus prepared. Then, the applied adhesive useful microbial group solution was dried in the shade for about 30 minutes to 1 hour so that it was stuck without flowing from the reed basement.

As described above, the useful microorganism group is a microbial group including common microorganisms known to promote plant growth and increase activity, such as lactic acid bacteria, yeast, photosynthetic bacteria, actinomycetes and filamentous fungi, and EM Research Organization Inc of Japan. , JAPAN) of EMRO (113-3 Dongbu-ri, Gijang-eup, Gijang-gun, Busan) was purchased under the trade name 'EM active liquid'.

Figure 1 is a reed basement photo of an exemplary plant to be applied to the present invention, Figure 1A is a photograph before applying the adhesive useful microorganism group, Figure 1B is a photograph of a state of applying the adhesive useful microorganism group.

Example 3 Length Growth Rate of Cultured Reeds in Leachate Treatment Water

The leachate treatment water of the landfill described above was treated with four treatment zones in Table 2 below, including the control.

Reed length growth in each treatment group was measured once a week starting from 2 weeks after the reed endoscopic implantation. In the measurement, 10 reeds with similar growth rates after 2 weeks among 25 reeds growing in each incubator were selected and labeled 1 to 10 times, and then the length of the marked reeds was measured. The measured result is the same as the reed length growth change graph of FIG.

Culture contents of reed Composition of the treatment zone A useful microbial group B Useful Microbial Mixture C Useful Microbial Applicator D control Soil composition 80%, BioCom 10% Green Power 10% + + + + Leachate Treatment Water + + + + Reed Underground (3cm) + + － － Reed basement with cohesive useful microorganisms Contents Underground diameter 3cm, white clay 100g, distilled water 100ml, useful microorganisms 100ml － － + － 5% useful microbial treatment solution － + － －

In Table 2, '+' indicates application and '-' indicates nonapplication, respectively, and the treated population n was 10. In Table 2 and FIG. 2, A is a treatment group that has not treated any useful microorganisms (hereinafter, referred to as' no treatment '), and B is a treatment which is treated with a useful microorganism group with 5% solution in leachate treatment water (hereinafter,' 'C' refers to a treatment tool (hereinafter, referred to as a 'coating treatment tool') in which the adhesive useful microorganism group is applied to reeds according to the present invention, and all of them are the same in the following examples.

As can be seen from Figure 2, both B and C treated with the useful microorganisms showed a higher length growth than the untreated group A, but the coated treatment group (C) according to the present invention is particularly weak compared to the untreated group (A). 136.3% and about 110.0% higher than the mixed treatment (B).

Example 4 Biomass Growth Rate of Cultured Reeds in Leachate Treatment Water

The final biomass of reeds growing in each treatment was measured. After the incubation, all the reeds grown at each treatment were harvested and washed with tap water, and then water was removed with a wet paper, and the ground and underground parts were separated. The final biomass of reeds is shown in Table 3 and FIG. The measurement population here is three and the unit of measurement is grams.

Reed final biomass Throttle A useful microbial group B Useful Microbial Mixture C Useful Microbial Applicator Biomass Growth Rate (%) C / A C / B leaf  24.7 ± 3.88  36.8 ± 3.45  47.8 ± 4.99 193.5 126.8 stem  52.0 ± 4.29  71.9 ± 2.50  94.9 ± 5.20 182.5 132.0 Above ground (leaves and stems) 76.7 109.6 142.7 186.0 130.2 Underground (root and underground) 115.2 ± 18.15 152.8 ± 8.48 177.5 ± 7.50 154.1 116.2 Total biomass 191.9 262.4 320.2 166.9 122.0

As shown in Table 3 and Figure 3, it was confirmed that the reed of the coating treatment according to the present invention has a higher biomass increase in the ground portion than in the underground portion. That is, the reed biomass of the coating treatment group (C) according to the present invention increased about 130.0% in the above-ground part and about 186.0% in comparison to the untreated group (A), and the underground part was mixed in the treatment group (B). It was confirmed that the biomass increased by about 116.2% and about 166.9% compared to the untreated group (A).

Example 5: Nitrogen (N) content of each organ after reed culture

After the reed culture, the nitrogen (N) content of each organ was measured. After incubation, the reeds were harvested, washed with tap water and distilled water, and separated by each organ and dried in a 60 ° C. drier for at least 12 hours. Each dried reed trachea was pulverized to 1 mm or less using a grinder, and 0.3 g was used as a sample for nitrogen (N) analysis.

0.3g (1.64g K ₂ SO ₄ : 0.19g CuSO ₄ ) of decomposition catalyst was added to 0.3g of each crushed reed's engine, and 5ml concentrated sulfuric acid was added. After digestion by time treatment, it was filtered with filter paper (Whatmann filter paper No. 44) at room temperature, and filled with 30 ml of distilled water and used for analysis. The analyzer used Automatic Kjeldahl Protein / Nitrogen Analyser (Kjeltec Auto 1035/1038 System, Tecator AB, SWEDEN).

The analysis results are shown in Table 4 and FIG. 4, and as can be seen from this, the content of nitrogen (N) in the reeds of the coating treatment (C) according to the present invention is higher than that of the mixing treatment (B) and the non-treatment (A). The increase of about 103.6% and about 134.4% in, and the increase of about 159.1% and about 288.6% in the case of the underground, increased the nitrogen content in the underground. However, by comparing the nitrogen content in the reed and the ground in reeds, much higher nitrogen content was found in the ground. In Table 4 and FIG. 4, the unit is μg T-N / g dry weight and the population is 3.

Nitrogen (N) content of each reed organ Treatment                                                  Organ of reed A useful microbial group B Useful Microbial Mixture C Useful Microbial Applicator Nitrogen content increase rate (%) C / A C / B leaf  2,196.7 ± 168.62 2,526.5 ± 308.02 2,757.3 ± 219.16 125.5 109.1 stem    789.2 ± 37.92 1,347.1 ±, 68.02 1,255.1 ± 110.27 159.0  93.2 Above ground (leaves and stems) 2,985.9 3,873.6 4,012.4 134.4 103.6 Underground (root and underground)   429.4 ± 92.39   778.7 ± 53.31 1,239.2 ± 200.85 288.6 159.1 Total nitrogen content 3,415.3 4,652.3 5,251.6 153.8 112.9

Example 6 Content of Phosphorus (P) in Each Organ after Reed Culture

After reed culture, the phosphorus content of each organ was measured. After incubation, the reeds were harvested, washed with tap water and distilled water, and separated by each organ and dried in a 60 ° C. drier for at least 12 hours. Each dried reed organ was pulverized to 1 mm or less using a grinder, and 0.3 g was used as a sample for phosphorus (P) analysis.

To 0.3 g of each crushed reed trachea, 3 ml of nitric acid solution was added and allowed to stand at room temperature for about 1 hour, and then decomposed at 80 ° C. for 1 hour, cooled at room temperature, and then 3 ml of 70% perchloric acid was added to the mixture for 3 hours at 200 ° C. After digestion, the filtrate was filtered through a filter paper (Whatmann filter paper No. 44) at room temperature, and filled with 30 ml of distilled water. The analyzer used an Inductively Coupled Plasma Emission Spectrometer (ICPS-1000IV, Shimazu, JAPAN).

The analysis results are shown in Table 5 and FIG. As shown in the results, the content of phosphorus (P) in the reeds of the coating treatment (C) according to the present invention increased to about 119.0% and about 145.7% in the ground compared to the mixed treatment (B) and no treatment (A), underground In the case of, it increased to about 116.8% and about 141.8%, indicating that there was a similar increase in phosphorus content in both the ground and the underground. However, by comparing the phosphorus content in the reed and the ground in reeds, much higher phosphorus content was found in the ground. In Table 5 and Figure 5 the unit is μg T-P / g dry weight and the population is 3.

Phosphorus content of each reed organ Throttle A useful microbial group B Useful Microbial Mixture C Useful Microbial Applicator Phosphorus growth rate (%) C / A C / B leaf 17.9 ± 1.74 20.4 ± 1.94 26.8 ± 1.47 149.7 131.4 stem 19.1 ± 1.29 24.9 ± 1.50 27.1 ± 1.46 141.9 108.8 Above ground (leaves and stems) 37.0 45.3 53.9 145.7 119.0 Underground (root and underground)  8.5 ± 0.91  9.9 ± 1.54 10.6 ± 1.83 124.7 107.1 Total phosphorus content 45.5 55.2 64.5 141.8 116.8

Example 7: Determination of nitrogen removal rate after reed culture

After the reed culture, the content of nitrogen (N) remaining in each treated soil and leachate water was checked to determine the nitrogen removal rate of each treated area. The soil was aliquoted and dried in a 60 ℃ drier for 12 hours or more, separated into 600 μm, 0.3g was used for analysis, and 100ml of leachate water was used for analysis. Pretreatment and analyzers for nitrogen analysis were performed in the same way as for plant materials.

The analysis results are shown in Table 6 and FIG. As shown in the results, the removal rate of nitrogen (N) in the reeds of the coating (C) according to the present invention was increased in both the leachate and the treated soil, it was confirmed that there was a sharp increase, especially in the treated soil. Three individuals were used for the measurement.

Nitrogen (N) residues in treated soil and leachate Treatment                                                  Analytical Sample A useful microbial group B Useful Microbial Mixture C Useful Microbial Applicator D control Treatment soil (㎍ T-N / g dry weight)  72.4 ± 6.45  42.3 ± 4.05  14.7 ± 1.89    75.8 ± 8.90 Leachate Treatment Water (mg T-N / ℓ) 329.7 ± 72.41 272.6 ± 21.76  53.6 ± 8.72 1,646.7 ± 96.30

Example 8: Determination of phosphorus removal rate after reed culture

After the reed culture, the phosphorus (P) content in each treated soil and leachate water was checked to determine the removal rate of phosphorus in each treated area. The soil was aliquoted and dried in a 60 ℃ drier for 12 hours or more, separated into 600 μm, 0.3g was used for analysis, and 100ml of leachate water was used for analysis. Pretreatment and analyzer were performed in the same way as the plant material.

The analysis results are shown in Table 7 and FIG. As shown in the results, it was confirmed that the removal rate of phosphorus (P) in the reeds of the coating according to the present invention was increased in both the leachate and the treated soil. Three individuals were used for the measurement.

Phosphorus Residues in Treated Soil and Leachate Treatment Water Treatment                                                  Analytical Sample A useful microbial group B Useful Microbial Mixture C Useful Microbial Applicator D control Treatment soil (㎍ T-P / g dry weight) 1.5 ± 0.24 1.3 ± 0.16 0.2 ± 0.09 8.5 ± 0.58 Leachate Treatment Water (mg T-P / ℓ) 2.5 ± 0.35 2.3 ± 0.34 2.1 ± 0.22 5.3 ± 0.34

According to the above embodiments, in order to purify the waste water in the state containing a large amount of water pollution sources such as landfill leachate treatment water, the adhesive useful microorganism group is applied to the growth site such as the underground diameter of the plant as compared to using the plant as it is conventionally It can be seen that the better water purification ability when planted.

In the above, only the example of using reed in describing the present invention has been described, but other babies known to have water pollutant water purification ability, buds, moon root grass, string, segolangini, yellow flower iris, iris, lotus, water lily It is expected that the adhesive useful microorganisms will be similarly applied to the hydrostatic plants.

According to the water purification method using the plant of the present invention by applying a sticky useful microorganism group to a water purification plant such as a reed having natural purification ability in a river or lake, the water purification ability is superior to planting only water purification plants. It has the effect of indicating.

In this way, if the application method of the useful microorganism group to increase the growth and activity of plants is applied to various aquatic plants to remove water pollutants of rivers or lakes, the water pollutants can be removed with high efficiency even with a short residence time. Secondly, the intensive use of river and appeal space can solve the difficulty of securing the water treatment site area, and third, the possibility of recycling the purified water with high efficiency is expected. It is expected that the efficiencies of the purification process in the artificial wetlands and artificial lakes can be doubled.

Claims (4)

Preparing a tacky useful microbial group solution by mixing a useful microorganism group for promoting growth and increasing activity of water-soluble plants and a pressure-sensitive adhesive for maintaining the useful microorganism group at a growth site of the plant; Applying the adhesive useful microbial solution to the growth site of the plant; Drying the tacky useful microbial solution such that the tacky useful microbial solution applied to the plant does not flow down from the plant; And Planting the plants coated with the adhesive useful microorganisms where water purification is required to purify the water quality through the growth of the plants; Water purification method using a plant, characterized in that it comprises a. The method of claim 1, wherein the plant is a reed having excellent water purification ability selected on the basis of water purification ability. The water purification method using plants according to claim 1, wherein the pressure-sensitive adhesive is a liquid obtained by mixing water with fine soil. delete

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