KR101529441B1 - Eco-friendly algaecide, and method for controlling harmful algae using the same - Google Patents
Eco-friendly algaecide, and method for controlling harmful algae using the same Download PDFInfo
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- KR101529441B1 KR101529441B1 KR1020140147763A KR20140147763A KR101529441B1 KR 101529441 B1 KR101529441 B1 KR 101529441B1 KR 1020140147763 A KR1020140147763 A KR 1020140147763A KR 20140147763 A KR20140147763 A KR 20140147763A KR 101529441 B1 KR101529441 B1 KR 101529441B1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/34—Rosaceae [Rose family], e.g. strawberry, hawthorn, plum, cherry, peach, apricot or almond
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/44—Poaceae or Gramineae [Grass family], e.g. bamboo, lemon grass or citronella grass
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5209—Regulation methods for flocculation or precipitation
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- Y10S514/91—
Abstract
The eco-friendly algae removing agent of the present invention comprises 100 to 100 parts by weight of barley straw, plum seeds, waxy wood and perilla, 10 to 30 parts by weight of starch, and 15 to 50 parts by weight of biodegradable polymer, wherein the biodegradable polymer comprises polylactic acid, 0.1 to 0.5: 0.3 to 1: 1 of at least one selected from the group consisting of polyglycolic acid, lactic acid, polycaprolactone, polyhydroxyalkanoate, polyethylene succinate and polybutylene succinate, 0.1 to 0.5 weight ratio. By using the eco-friendly algaecide, the harmful algae are excellent in the stability and control effect of harmful algae, and can be environmentally friendly, and the fish community inducing effect can be excellent.
Description
The present invention relates to an environmentally friendly algaecide and a method for controlling harmful algae using the same.
Harmful algal blooming (HAB) is a phenomenon in which species diversity of microorganisms and fungi is broken in eutrophicated waters and one or a few specific algae predominate and multiply massively. This phenomenon leads to health damage of human and livestock, bad odor and deterioration of water function, and it leads to destruction of food chain, inability to move habitat due to rain, and destruction of aquatic ecosystem such as death of fish and livestock. Green algae, algae, and monocotyledonous birds.
On the other hand, the phenomenon that massive proliferation of pheasants (phytoplankton) in an eutrophic lake or a slow or stagnant pond flows and accumulation on the surface of the lake changes the color of the water significantly to green is called the algae phenomenon. Among the problems, the most remarkable point in recent years is the use of green algae in the toxic and agricultural reservoirs produced by the cyanobacteria, and the inhibition of the growth of oxygen by preventing the flow of oxygen into the paddy fields when used as agriculture water.
Biological control, chemical control and water treatment control are known to prevent green algae, which is considered to be the main cause of environmental pollution. The biological control is a method using microorganisms. For example, it is a method to extract a specific gene that removes the green alga from the bacteria living in the sea, and to use it for the control of the green algae by producing a new species having strong migration and transplanting ability to the general microorganism.
The chemical control is a method of controlling with a known medicament such as copper sulphate and the like, and its effect is comparatively excellent. However, since it is economically expensive, it is difficult to use it frequently in a vast area. Especially when a herbicide is used, The problem of bird growth is eliminated by eliminating the competitive effect of higher plants, and when the herbicide is decomposed, there is a problem that more algae are proliferated than before the herbicide is used.
It is known that the above-mentioned water treatment control is carried out by coagulation, sedimentation, filtration, activated carbon adsorption, chlorine disinfection and ozone oxidation.
However, the above-mentioned green algae control methods have been relatively emphasized on costs and control effects rather than considering environmental stability. Especially, chemical control which is considered to be most practical is fast-acting and has a clear treatment effect, but it is non-selective, and in some cases, it is impossible to exclude the possibility of producing toxic substances by interacting with heavy metal accumulation and organic substances. In addition, due to economic problems such as the installation operation cost of the circulation system such as the pump and the chemical cost, these control methods have been difficult to be actually applied.
Therefore, there is an urgent need for a method for controlling harmful birds such as green algae and cyanobacteria, which is more environmentally friendly and excellent in stability, can minimize damage to green algae and cyanobacteria, and is advantageous for economic use.
In this regard, Korean Patent Laid-Open Publication No. 2012-0031666 discloses a method for controlling harmful algae containing at least one of anacardic acids, natural products containing 50% or more anacadic acid, and anacadic acid chloride Compositions are disclosed.
Barley straw, on the other hand, consists largely of lignin, cellulose and semicellulose. The lignin is a major constituent of barley stem and seed head and accounts for about 15% of the straw straw constituents (Sarkanen and Ludwing 1971). The structure of lignin consists of polyphenols and is divided into hydrolysable tannins and phenylpropanoids such as lignin. Particularly, lignin is decomposed into phenylpropane units by microbial activity in a natural environment with high oxygen saturation. These aromatic compounds are converted to quinones through an oxidation process (Pillinger et al. 1994). Appel (1993) reported that algae growth inhibitors from birch straws are highly active in water bodies with high oxygen saturation and alkaline conditions.
An object of the present invention is to provide an eco-friendly algaecide which is environmentally friendly, excellent in stability, and excellent in the control effect of harmful algae.
Another object of the present invention is to provide an eco-friendly algaecide which is applicable to a wide range of harmful algae.
Another object of the present invention is to provide an eco-friendly algae remover which is excellent in persistence of harmful algae control and economical efficiency.
Another object of the present invention is to provide an eco-friendly algae remover which is excellent in community induction effect of fish and heavy metal adsorption effect.
It is another object of the present invention to provide a method for controlling harmful algae using the environmentally friendly algaecide.
One aspect of the invention is an eco-friendly algaecide. In one embodiment, the eco-friendly algaecide comprises 100 to 100 parts by weight of barley straw, plum seeds, waxy wood and cloves, 10 to 30 parts by weight of starch, and 15 to 50 parts by weight of a biodegradable polymer, wherein the biodegradable polymer is polylactic acid, Wherein the barley straw, plum seed, cottonwood, and papaya are at least one selected from the group consisting of polyglycolic acid, polycaprolactone, polyhydroxyalkanoate, polyethylene succinate, and polybutylene succinate, 1: 0.1 to 0.5 weight ratio.
In one embodiment, the barley straw, the plum seeds, the elderberry seedlings, and the papaya are fermented, and the yeast is added to the barley straw having the fermentation water content of 30% to 50% While primary fermentation; And mixing the primary fermented barley straw with plum seeds, cotton seeds and cloves and secondary fermentation at a temperature of -5 ° C to 10 ° C for 5 to 10 days; The method comprising the steps of:
In one embodiment, the density of the environmentally-friendly algaecide is 0.5 g / cm3 to 2.5 g / cm3.
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Another aspect of the present invention relates to a method for controlling harmful algae using the eco-friendly algaecide. In a specific example, the harmful algae controlling method is characterized in that the above-described eco-friendly algaecide is treated with contaminants containing harmful algae.
In one embodiment, the harmful algae are selected from the group consisting of Volvox , Anabaena , Synedra , Cosmarium, Staurastrum, Golenkinia , Lena (Eudorina), schedule four des mousse (Scenedesmus), micro during seutiseu (Microcystis), Tra cello Pseudomonas (Trachelomonas), ferry D nium (Peridinium), pediah host volume (Pediastrum), come la thoria (Oscillatoria), nose Ella And may include one or more of Coelastrum , Chlamydomonas , Scenedesmus and Botryococcus .
By applying the algaecide according to the present invention, it is possible to prevent secondary environmental pollution during the control of harmful algae, and is environmentally friendly, has excellent stability because it does not affect invertebrates or algae, The present invention is applicable to a wide range of harmful algae, has an excellent adsorption effect of heavy metals, is excellent in persistence of harmful algae control, and the algae removing agent of the present invention can be a feed for shrimp and plankton, It can be very economical to utilize disused plant resources such as cloves, barley straw, and plum seeds.
1 (a) is a photograph of a sample taken before the introduction of the environmentally-friendly algaecide of Example 1, FIG. 1 (b) is a photograph of a sample collected after 24 hours after the algaecide of Example 1 was installed 1 (c) is a photograph of a sample collected after 3 days with the algaecide of Example 1 installed.
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.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary, self-explanatory, allowing for equivalent explanations of the present invention.
In this specification, " size " is defined as " maximum length ".
One aspect of the invention is an eco-friendly algaecide. In one embodiment, the eco-friendly algaecide includes 10-30 parts by weight of starch and 15-50 parts by weight of biodegradable polymer based on 100 parts by weight of the barley straw, plum seeds, waxy wood and perilla. In this range, it is possible to improve the algaecide removal efficiency by preventing harmful algae removal and control, inducing the community of fishes and adsorbing heavy metals, and preventing the algaecide component from being easily dispersed in a water stream or a wave.
In the present invention, the barley straw means that the spike includes stem and leaf of barley which has fallen. When the barley straw is sprayed on water containing algae, the ferulic acid such as ferulic acid and p-coumaric acid released at the decomposition of the cell wall of the barley straw and the phenolic acid such as p- The aromatics formed during the complete decomposition of lignin fraction show the inhibitory effect of harmful algae.
In addition, the barley straw generates hydrogen peroxide (H 2 O 2 ) in the water and generates active oxygen from the generated water. This is harmless to marine organisms, water plants such as water plants and fishes and has an effect of preventing the generation of moss, The low phosphorus content can prevent eutrophication and rapid depletion of dissolved oxygen during application to the pollutants. In addition, the barley straw is excellent in the controllability of harmful algae until completely reacted in water.
The plum seeds are seeds of plum which is a fruit of Prunus mume . The plum seeds fix the phosphorus and nitrogen which are food for the green algae to block the food and reduce the acidified fresh water to the original alkaline water by the green tide phenomenon. In addition, the plum seeds contain amygdalin which is a glycoside. The amygdaline generates glucose, benzaldehyde, and hydrocyanic acid upon the reaction with water, so that the effect of controlling or eliminating harmful algae can be excellent.
Chamaecyparis obtusa is included for the purpose of controlling harmful algae by destroying the cell walls of harmful algae and collapsing the protoplasts.
The chestnut refers to at least one of the following: twigs of chestnut ( Castanea crenata ), endothelium and crust of chestnut, and chestnut extract of chestnut fruit. The uri is contained for the purpose of removing heavy metals contained in contaminants while decomposing the harmful algae or inhibiting the growth of the harmful algae.
The uri contains phenolic acids such as gallic acid and ellagic acid, and the gallic acid has excellent antioxidative activity. In addition, the urine contains a tannin component, which is excellent in adsorption and sedimentation effects on proteins, alkaloids and heavy metals. The heavy metals to which the tannin can adsorb and precipitate may include lead (Pb), copper (Cu), and cadmium (Cd).
In one embodiment, the barley straw, plum seeds, cottonwood, and papaya can be ground to an average size of 0.5 mm to 25 mm. In case of using the above average size range, the surface area increases, so that it easily reacts with harmful algae, and the harmful algae controlling effect can be more excellent.
In one embodiment, the barley straw, plum seed, perilla seed, and perilla can be included in a weight ratio of 1: 0.1-0.5: 0.3-1: 0.1-0.5. For example, the barley straw, plum seeds, cottonwood, and papaya can be contained in a weight ratio of 1: 0.1-0.3: 0.3-0.5: 0.3-0.5. In the above range, the synergistic effect between the respective constituents is excellent, and harmful algae control and removal and heavy metal adsorption removal effect can be excellent at the same time.
In an embodiment, the eco-friendly algaecide can be fermented to improve the control rate and control efficiency of harmful algae.
In one embodiment, the fermentation is performed by adding yeast to a barley straw having a water content of 30% to 50% and firstly fermenting at a temperature of 20 ° C to 35 ° C for 5 days to 15 days; And fermenting said primary fermented barley straw, plum seeds, cotton seeds and cloves and secondary fermentation at a temperature of -5 ° C to 10 ° C for 5 to 10 days; Step < / RTI > The fish community effect, the control speed of harmful algae and the control efficiency can be excellent under the fermentation conditions.
The yeast may be any conventional yeast. For example, Saccharomyces cerevisiae and Saccharomyces carisbergenesis can be used. When the yeast is fermented using the yeast, the controlling rate of the harmful algae contained in the pollutant and the controlling efficiency can be excellent.
The yeast may be any conventional yeast. For example, Saccharomyces cerevisiae and Saccharomyces carisbergenesis can be used. When the yeast is used, the controlling rate of the harmful algae contained in the pollutant and the controlling efficiency can be excellent.
In one embodiment, the starch and the biodegradable polymer are included for the purpose of improving the algae removal efficiency and securing the fish community inducing effect by preventing the algaecide component from being easily dispersed in water and waves.
The starch is included as a binder to bind the algaecide components and as a feed for shrimp or plankton to improve the fish community inducing effect around the algaecide.
In an embodiment, the starch is contained in an amount of 10 to 30 parts by weight based on 100 parts by weight of the barley straw, plum seeds, Japanese white pine and perilla. When the starch is contained in an amount of less than 10 parts by weight, moldability and physical strength are lowered and the algaecide agent is easily dispersed to deteriorate the algae control effect. When the starch is contained in excess of 30 parts by weight, . For example, 10 parts by weight to 20 parts by weight.
The biodegradable polymer is included for the purpose of shaping the algae removing layer of the present invention into a predetermined form. In addition, the biodegradable polymer is completely decomposed in water and is excellent in an environmentally friendly effect.
In an embodiment, the biodegradable polymer includes polylactic acid, polyglycolic acid, polycaprolactone, polyhydroxy alkanoate, polyethylene succinate, and polylactic acid. Polybutylene succinate, and polybutylene succinate. When the biodegradable polymer is included, the physical strength of the algae removing layer is excellent, thereby preventing the algaecide component from being dispersed in the blue color without deteriorating the controlling effect, improving the adhesion of the algae to be applied, Therefore, it is completely decomposed in the water phase, thereby preventing environmental pollution.
In an embodiment, the biodegradable polymer is contained in an amount of 15 to 50 parts by weight based on 100 parts by weight of the algaecide. Within the above range, stable effects can be exhibited within a range that does not inhibit the control effect, adhesion to the organism to be applied is enhanced, and damage due to waves can be small. When the biodegradable polymer is contained in an amount of less than 15 parts by weight, moldability and physical strength are lowered, the algaecide is easily dispersed to deteriorate the algicidal effect. When the biodegradable polymer is contained in an amount exceeding 50 parts by weight, And the efficiency of controlling harmful algae is lowered. For example, 20 to 40 parts by weight.
In one embodiment, the algicide is selected from the group consisting of barley straw, plum seeds, waxy wood, 100% by weight of starch, 10-30 parts by weight of starch and 15-50 parts by weight of biodegradable polymer at a temperature of 70-110 & / Cm < 2 > to 250 kgf / cm < 2 > for 30 minutes to 3 hours. As described above, the algaecide component is not denatured during molding, and proper physical strength can be secured.
In other embodiments, the algaecide of the present invention may be formulated as a pharmaceutically acceptable solid to facilitate the stable manifestation of the effect, enhancement of adhesion to the subject organism, and simplification of transportation and treatment, And may further comprise a surfactant such as a carrier, a liquid carrier, a liquid diluent, a liquefied gas diluent, a solid diluent, or other suitable adjuvant such as an emulsifying agent, a dispersing agent or a foaming agent.
In embodiments, the eco-friendly algaecide may be in the form of a donut, a cylinder, a polygonal column, or a plate. For example, in the form of a plate. The thickness of the environmentally friendly algaecide may be 3 to 20 cm, but is not limited thereto.
In other embodiments, the eco-friendly algaecide may be in the form of a granulate. The size of the eco-friendly algaecide may be 5 to 3 cm, but is not limited thereto.
In embodiments, the density of the algaecide may range from 0.5 g / cm3 to 2.5 g / cm3. When formed at the density, the algaecide agent stably floats, and the algae removal and control effect can be excellent. For example, 0.8 g / cm3 to 1.5 g / cm3.
Another aspect of the present invention relates to a method for controlling harmful algae using the eco-friendly algaecide. In a specific example, the above-mentioned method for controlling harmful algae can treat the above-mentioned eco-friendly algaecide to pollutants containing harmful algae.
The harmful algae that can be controlled by applying the environmentally friendly algaecide of the present invention may be at least one of cyanobacteria and green algae. In one embodiment, the harmful algae that can be controlled by applying the environmentally friendly algaecide include Volvox , Anabaena , Synedra , Cosmarium, Staurastrum, , Golenkinia , Eudorina , Scenedesmus , Microcystis , Trachelomonas , Peridinium , Pediastrum , Pediastrum , , Oscillatoria , Coelastrum , Chlamydomonas , Scenedesmus , and Botryococcus . The term " plant "
At this time, the pollutants containing the harmful algae may include submerged or immersed soil in which harmful algae live.
In one embodiment, the eco-friendly algaecide is prepared in the form of a plate, installed in water or immersed soil containing harmful algae, and can remove harmful algae and heavy metals by contact. In the present specification, the term " contact " is defined to include both the case where the submerged or submerged soil containing the harmful algae is in contact with at least one surface of the environmentally friendly algaecide, or the environmentally algaecide is immersed in water.
In one embodiment, the eco-friendly algaecide can be pulverized to a predetermined size and sprayed or mechanically sprayed into water or immersion soil containing harmful algae. For example, it can be applied to places where water quality management is required in facilities intended to reduce the breeding of lakes, agricultural reservoirs, ponds, and other harmful algae.
In another embodiment, the eco-friendly algaecide can be put into the net and used in water or immersed soil. The mesh size of the mesh may be between 0.01 mm and 3 mm. Further, the mesh may be formed of one of stainless steel, polyethylene, nylon, and polypropylene.
In one embodiment, the treatment may add at least 0.1 g / L of the eco-friendly algaecide to the pollutant containing the harmful algae. For example, it is possible to add 0.5 g / L or more. For example, it is possible to add 0.5 g / L to 100 g / L. When put into the above range, the harmful algae removal effect is excellent, and it can be advantageous from the viewpoint of cost.
In addition, the algaecide of the present invention can be put into a net so that its rim is connected to an external structure by a connecting member such as a rope, so that it can be prevented from being swept away by water currents without overturning in strong winds or waves.
Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. However, the following examples are provided to aid understanding of the present invention, and the scope of the present invention is not limited to the following examples. The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.
Example 1
A mixture containing barley straw, plum seeds, cottonwood and chestnut husk at a weight ratio of 1: 0.3: 0.5: 0.3 was ground to an average size of 5 mm. Then, 100 parts by weight of the pulverized barley straw, plum seeds, waxy wood and juli, 15 parts by weight of starch and 35 parts by weight of a biodegradable polymer (polylactic acid) were heated at 80 DEG C under a pressure of 50 kgf / To produce a plate-shaped eco-friendly algaecide having a thickness of 5 cm and a density of 0.9 g / cm 3.
Example 2
Yeast (Saccharomyces carlsbergensis) was added to barley straw whose moisture content was adjusted to 40%, primary fermentation was conducted at a temperature of 25 캜 for 7 days, and then the primary fermented barley straw, plum seed, The mixture containing the perilla seedlings and the perilla seeds at a weight ratio of 1: 0.3: 0.5: 0.3 was subjected to secondary fermentation at a temperature of 5 ° C for 7 days, and the secondary fermented mixture was pulverized to an average size of 5 mm to produce barley straw, Eco-friendly algaecide was prepared in the same manner as in Example 1, except that unplasticized white algae and perilla were prepared.
Example 3
Eco-friendly algaecide was prepared in the same manner as in Example 1, except that 100 parts by weight of barley straw, plum seeds, waxy wood and perilla, 20 parts by weight of starch and 20 parts by weight of biodegradable polymer (polylactic acid)
Comparative Example 1
An algaecide was prepared in the same manner as in Example 1 except that the starch and the biodegradable polymer were not included.
Comparative Example 2
10 parts by weight of starch and 5 parts by weight of a biodegradable polymer were prepared in the same manner as in Example 1.
Comparative Example 3
An algaecide was prepared in the same manner as in Example 1 except that 25 parts by weight of starch and 55 parts by weight of biodegradable polymer were used.
Comparative Example 4
An algal remover was prepared in the same manner as in Example 1, except that it did not contain white clover and clover.
Experimental Example
Water quality samples were taken from the rivers where harmful algae were controlled. As a result of the identification of the water quality samples, it was confirmed that 15 kinds of freshwater algae were present in the samples. The algaecide agents of Examples 1 to 3 and Comparative Examples 1 to 4 were put into a net having a graduation size of 0.1 mm in a predetermined region of the steel, and the rim was connected to and fixed to the outer structure with a connecting member such as a rope. Subsequently, water samples around the algae removing layer of the algaecide of Examples 1 to 3 and Comparative Examples 1 to 4 were taken over time to collect 10 species of dominant birds ( Volvox ), Anabaena , Synedra , Cosmarium , Staurastrum , Golenkinia , Scenedesmus , Microcystis Microcystis and Trachelomonas ) (cell number / 100 ml) and removal rate (%) were measured and are shown in Table 1 and FIG.
In addition, the fish community size around the algaecide of Examples 1 to 3 and Comparative Examples 1 to 4 was observed, and it was found that the fish community was divided into four stages of excellent (?), Excellent (?), The fish community induction effect was measured and shown in Table 1 above.
1 (a) is a photograph of a sample taken before the introduction of the environmentally-friendly algaecide of Example 1, FIG. 1 (b) is a photograph of a sample collected after 24 hours after the algaecide of Example 1 was installed 1 (c) is a photograph of a sample collected after 3 days with the algaecide of Example 1 installed. Referring to FIG. 1 and Table 1, the algicidal agents of Examples 1 to 3 of the present invention were excellent in the effect of controlling harmful algae, persistence of control and fish community aggregation effect, and contained starch and biodegradable polymer components of the present invention , And in the case of Comparative Example 1 and Comparative Example 2 which were out of the content range, the algae removing layer was easily dispersed according to the strong wind, the wave and the water flow, the concentration of the harmful algae was increased and the fish community effect was low at a certain period of time, In the case of Comparative Example 3 in which the content of the biodegradable polymer was exceeded, the harmful algae controlling efficiency and the fish community aggregation effect were lower than those in Examples 1 to 3. In Comparative Example 3, 4, the harmful algae controlling efficiency and the fish community aggregation effect were lower than those of Examples 1 to 3.
Claims (6)
Wherein the biodegradable polymer comprises at least one of polylactic acid, polyglycolic acid, polycaprolactone, polyhydroxyalkanoate, polyethylene succinate, and polybutylene succinate,
Wherein said barley straw, plum seeds, perilla seedlings and clover are contained in a weight ratio of 1: 0.1-0.5: 0.3-1: 0.1-0.5.
Wherein the fermentation is performed by adding yeast to barley straw having a moisture content of 30% to 50% and firstly fermenting at a temperature of 20 ° C to 35 ° C for 5 to 15 days; And
Mixing said primary fermented barley straw with plum seeds, cottonwood and cloves and secondary fermenting at a temperature of -5 ° C to 10 ° C for 5-10 days; The method of claim 1,
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101829622B1 (en) | 2017-07-21 | 2018-02-19 | 이호 | Eco-friendly composition for removing green algae having function of deodorization and sterilization and removing method for green algae using the same |
| CN115215415A (en) * | 2022-08-04 | 2022-10-21 | 青岛哈工程压载水检测有限公司 | Preparation method of wheat straw magnetic seeds and application of wheat straw magnetic seeds in high-gradient magnetic separation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20140108533A (en) * | 2011-12-22 | 2014-09-11 | 질레코 인코포레이티드 | Processing of biomass materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20140108533A (en) * | 2011-12-22 | 2014-09-11 | 질레코 인코포레이티드 | Processing of biomass materials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101829622B1 (en) | 2017-07-21 | 2018-02-19 | 이호 | Eco-friendly composition for removing green algae having function of deodorization and sterilization and removing method for green algae using the same |
| CN115215415A (en) * | 2022-08-04 | 2022-10-21 | 青岛哈工程压载水检测有限公司 | Preparation method of wheat straw magnetic seeds and application of wheat straw magnetic seeds in high-gradient magnetic separation method |
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