KR20180007872A - Absorbent composition for removing phosphorus of underwater, methods of manufacturing and recycling the same and absorbent device - Google Patents

Abstract

The present invention relates to an adsorbent for removing phosphorus in the water and, more specifically, to an adsorbent composition for water quality improvement and maintenance in an aquarium or a farm for aquarium fishes by comprising gamma alumina, bottom ash or basalt waste stone sludge and a binder, to a method for manufacturing an adsorbent using the same, to a method for recycling an adsorbent after use and an adsorption device.

Description

FIELD OF THE INVENTION The present invention relates to an adsorbent composition for removing phosphorus in water, a method for producing an adsorbent using the same, a method for regenerating an adsorbent, and an adsorbing apparatus for adsorbing phosphorus.

The present invention relates to an adsorbent composition, a method for producing an adsorbent using the same, a method for regenerating an adsorbent after use, and an adsorption apparatus.

Phosphorus is an essential nutrient of all living things on Earth and constitutes ATP, phospholipid, nucleic acid (DNA or RNA) in living things.

As the industry develops, the use of phosphorus also tends to increase, and the problem is that the phosphorus that is contained in the sewage or wastewater and used as effluent after the use, causes the rivers to flourish and the ecosystem to become eutrophicated.

In addition, phosphorus is also a problem in aquarium or aquarium such as aquarium fish, which may act as a nutrient for the growth of algae, causing the occurrence of the algae.

Aquatic environment of aquarium fish or aquaculture is similar to general pond or reservoir, and eutrophication occurs when the concentration of nitrogen or phosphorus is increased by remaining feed and excrement in water.

Until now, fish breeding methods have been tried by replacing with clean water for water quality management or adding water quality improvement agent such as microbial culture liquid. However, in the high temperature condition in summer, the effect of water quality improvement is insufficient, There is no effect.

Nitrogen and phosphorus are the most important factors to be removed for improving water quality. Nitrogen is a cause of COD and BOD increase due to eutrophication, and various products such as natural zeolite and loess bead are released as a filter material for removing such nitrogen have.

In particular, phosphorus in the water is the main nutrient of phytoplankton and acts as a main cause of green tide generation. It is a cause of viruses and diseases and must be removed.

On the other hand, the importance of aquaculture is increasing due to the limitation of marine water resources.

In order to prevent this problem, the water quality is controlled by using the filtration type to solve the water quality problems of the aquarium or the farm. However, it is limited due to the installation cost and the maintenance cost.

In addition, the adoption of the circulation filtration method can control the concentration of ammonia, nitrite and nitrate, but it has a disadvantage in that it is impossible to control the phosphorus which causes the occurrence of the green tide. Therefore, The development of adsorbent is urgent.

Related arts include Korean Patent Registration No. 10-1466088 entitled " Method for producing adsorbent for adsorption and adsorbent prepared by this method "(published on Nov. 21, 2014).

In order to achieve the above object, the present invention provides an adsorbent composition for improving water quality and maintenance of aquarium fish or aquaculture by providing an adsorbent composition comprising gamma alumina, bottom ash or basalt waste slag, blast furnace slag and binder In the future.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

To achieve the above object, an adsorbent composition for removing phosphorous in water according to an embodiment of the present invention includes gamma alumina, bottom ash or a basalt waste slag, a blast furnace slag, and a binder.

The gamma alumina according to an embodiment of the present invention may include 30 to 60 parts by weight of the bottom ash or 15 to 45 parts by weight of the basalt waste.

In addition, the blast furnace slag according to an embodiment of the present invention includes 15 parts by weight and the binder is 10 parts by weight.

Also, the particle size of the gamma alumina, the bottom ash, or the basalt waste slag and the blast furnace slag according to an embodiment of the present invention is 50 to 150 μm.

In addition, the binder according to an embodiment of the present invention is in a liquid phase and includes polyvinyl alcohol (PVA) and methyl cellulose (MC).

In addition, the weight ratio of the polyvinyl alcohol and the methyl cellulose according to an embodiment of the present invention is 1: 1 to 0.7: 1.3.

According to another aspect of the present invention, there is provided a method for preparing an adsorbent for removing phosphorus in water, comprising the steps of: preparing an adsorbent mixture by mixing an adsorbent composition, granulating the mixture, Drying the granulated material, and heat treating the dried granulated material to produce an adsorbent.

In addition, the heat treatment according to an embodiment of the present invention is characterized by calcining at 300 to 400 ° C for 30 minutes to 1 hour.

In addition, the heat treatment according to an embodiment of the present invention is characterized by calcining at 370 캜 for 30 minutes and calcining at 400 캜 for 10 minutes.

According to an aspect of the present invention, there is provided an adsorption apparatus for removing phosphorus in water, comprising: an adsorbent for removing phosphorus in the water; and an adsorbent inside the adsorbent, And a filter bag for passing the phosphorus while preventing the phosphor from passing through the filter bag.

According to an embodiment of the present invention, there is further provided an adsorption apparatus for removing phosphorus in water, the adsorption apparatus further comprising a compression rubber connected to the filter bag by a string and for attaching the filter bag.

According to another aspect of the present invention, there is provided an adsorption apparatus for removing phosphorus in water, comprising: an adsorbent for removing phosphorus in the water; And an outlet formed at one end of the receiving part for receiving water in the water and an outlet formed at the other end of the receiving part for filtering and discharging the introduced water.

According to an embodiment of the present invention, there is provided a method for regenerating an adsorbent for removing phosphorus in water, wherein the adsorbent for removing phosphorus in the water is used in water to recover adsorbed phosphorus A step of adding the recovered adsorbent to a microalgae incubator to cultivate a microalgae, extracting and removing microalgae from the adsorbent in which the microalgae have been cultured, washing the adsorbent from which the microalgae have been removed, And reusing the washed adsorbent.

In addition, the step of washing the adsorbent from which the microalgae are removed according to an embodiment of the present invention is characterized by washing with hydrogen peroxide or ozone, followed by washing with ordinary water.

The present invention provides an adsorbent composition comprising gamma alumina, bottom ash or basalt waste lime, blast furnace slag, and binder to enable improvement and maintenance of water quality in aquarium fish aquarium or aquaculture.

Further, the present invention has the effect of recycling the adsorbent by suggesting a regeneration method of the adsorbent whose end of life is terminated by using a microalgae incubator.

In addition, the present invention can provide an adsorption apparatus which can be practically applied to an aquarium, a farm, etc. by proposing various utilization methods of an adsorbent for removing phosphorus in water.

1 is a graph showing the results of phosphorus removal experiments of gamma alumina according to an embodiment of the present invention.
2 is a graph showing the results of phosphorus removal experiment of bottom ash according to an embodiment of the present invention.
FIG. 3 is a graph showing the phosphorus removal performance of the bottom ash over time according to an embodiment of the present invention. FIG.
4 is a graph showing phosphorus removal test results of blast furnace slag according to an embodiment of the present invention.
5 is a graph showing the phosphorus removal performance of the blast furnace slag according to an embodiment of the present invention over time.
6 is a flowchart illustrating a method for producing an adsorbent for removing phosphorus in water according to an embodiment of the present invention.
7 illustrates an adsorption apparatus for removing phosphorous in water according to an embodiment of the present invention.
8 is a use state diagram of the adsorption apparatus of Fig.
9 illustrates an adsorption apparatus for removing phosphorus in water according to another embodiment of the present invention.
10 is a flowchart illustrating a method of regenerating an adsorbent for removing phosphorus in water according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In one aspect, the present invention relates to an adsorbent composition for removing phosphorus in water. Here, the underwater can include all kinds of water such as an aquarium fish or a farm.

The adsorbent composition according to one embodiment of the present invention is characterized by containing gamma alumina, bottom ash or basalt waste slag, blast furnace slag, binder and the like.

Preferably gamma alumina can be prepared by calcining boehmite at 300-400 ° C and can be utilized as a phosphorus adsorbent.

Specifically, the gamma alumina can be produced by heat-treating a gamma alumina precursor, specifically an aluminum alkoxide, an alkaline earth metal salt, preferably aluminum hydroxide, and calcining it as a particle powder. Here, firing refers to an operation of sintering powder.

For example, aluminum hydroxide undergoes dehydration reaction as it heats up, passing through bohemite and turning into aluminum oxide. In this phase change process, fine mesopores are formed as they are dewatered, and the above-mentioned gamma alumina can be produced by appropriately controlling the pore size and amount of the mesopores. However, the method for producing gamma alumina is not limited thereto, and any of the methods for producing gamma alumina known in the art may be employed.

1 is a graph showing the results of phosphorus removal experiments of gamma alumina according to an embodiment of the present invention.

At this time, the particle size of gamma alumina is 50 to 150 mu m, the adsorption time is 1 hour, the stirring speed is 200 rpm, the test water is 100 ml, and the phosphorus reagent is KH ₂ PO ₄ .

As shown in FIG. 1, the removal rate increases sharply until the weight of gamma alumina reaches approximately 0.1%, and it gradually converges to 100% as the weight of gamma alumina increases. On the contrary, As the weight of gamma alumina increases, it gradually converges to 0% after abruptly decreasing. As a result, the phosphorus adsorption performance of gamma alumina according to the present invention can be confirmed.

ingredient SiO ₂ Al ₂ O ₃ Fe ₂ O CaO K ₂ O MgO Content (%) 50 to 60% 20-25% 8-12% 3 to 8% 3 to 4% 1 to 3%

Table 1 shows the chemical composition of the bottom ash according to the present invention. Bottom-ash is a kind of fly ash generated in the combustion process of coal, and fly ash, Bottom ash can be distinguished.

In the case of bottom ash, it is attached to furnace wall, superheater, reheater, etc., and it is fallen to the bottom of boiler by its own weight. It is thicker than fly ash and occupies about 10 ~ 15% of total fly ash production have.

As can be seen from Table 1, the bottom ash according to the present invention is discarded after using coal fuel in a thermal power plant and does not contain heavy metals as it is burned at an internal temperature of 1300 degrees or higher.

For reference, the heavy metals that are vaporized during the combustion process are collected in the dust filter and contained in a large amount in the fly ash.

The bottom ash according to the present invention is preferably cooled using air cooling or a water cooling process using fresh water or seawater.

Basalt waste lime represents waste lime generated by stone processing using basalt, and can perform the same function as bottom ash.

2 is a graph showing the results of phosphorus removal experiment of bottom ash according to an embodiment of the present invention.

At this time, the particle size of the bottom ash is 50 to 150 μm, the adsorption time is 1 hour, the stirring speed is 200 rpm, the test water is 100 ml, and the phosphorus reagent is KH ₂ PO ₄ .

As shown in FIG. 2, as the weight of the bottom ash increases, the phosphorus removal rate also increases substantially in proportion thereto, and the phosphorus concentration decreases inversely. As a result, The phosphorus adsorption performance of ash can be confirmed.

time T-P aqueous solution 10 ppm T-P aqueous solution 20 ppm T-P aqueous solution 30 ppm 0 10 20 30 One 6.8 13.4 20.2 2 5 10.7 16.2 3 3.4 7.9 12.5 6 1.7 4.6 7.9 9 1.4 2.1 4.1 12 1.2 1.4 3.4 18 1.1 1.3 3.1 24 1.1 1.3 2.9

3 and Table 2 show the phosphorus removal performance of the bottom ash according to an embodiment of the present invention over time.

At this time, the particle size of the bottom ash is 50 to 150 μm, the amount of the bottom ash used is 100 g, the phosphorus reagent is KH ₂ PO _4, and the amount of phosphorus reagent is 10 ppm 100 ml, 20 ppm 100 ml and 30 ppm 100 ml.

As shown in FIG. 3 and Table 2, when the bottom ash according to the present invention was fed, it was confirmed that the concentration of TP aqueous solution of 10 ppm to 30 ppm was drastically lowered, and it was found that the concentration was extremely low after 24 hours As a result, the phosphorus adsorption performance of the bottom ash according to the present invention can be confirmed.

ingredient SiO ₂ CaO Al ₂ O ₃ Total Fe MgO S MnO Content (%) 33.4 41.0 14.5 0.4 6.0 1.0 0.7

Table 3 is a table showing the chemical composition of the blast furnace slag according to the present invention. Blast furnace slag is a slowly cooled slag obtained by taking molten slag from a blast furnace, which is generated when pig iron is produced in a steel mill, A small sand-like quenched slag is finely pulverized and mixed with cement in an appropriate amount.

As can be seen from Table 3, the blast furnace slag according to the present invention contains Al ₂ O ₃ , MgO, Fe, and CaO components required for chemical adsorption removal of phosphorus, and thus has an excellent effect on removal of phosphorus in water.

[Reaction formula of magnesium oxide and ammonium phosphate]

MgO + NH ₄ H ₂ PO ₄ + 5H ₂ O - > NH ₄ MgPO ₄ .H ₂ O

_{MgO + NH 4 H 2 PO 4} -> NH 4 MgPO 4 · H 2 O

NH ₄ MgPO ₄ .6H ₂ O -> NH ₄ MgPO ₄ .H ₂ O + 5H ₂ O

[Scheme removal by ^{Fe 3 +, Al 3 +,} 5Ca 2 +]

Fe ^{3 +} + PO ₄ ^{3 -} = FePO ₄

Al ^{3 +} + PO ₄ ^{3 -} = AlPO ₄

5Ca ^{2 +} + 3PO ₄ ^{3 -} + OH ^- = Ca ₅ (PO ₄ ) ₃ (OH)

The above chemical equations show the reaction formula of magnesium oxide and ammonium phosphate and the removal equation of phosphorus by Fe ^{3 +} , Al ³⁺ , 5Ca ^{2 +} . As described above, the blast furnace slag according to the present invention can contain phosphorus in water as it contains main components for removing phosphorus.

4 is a graph showing phosphorus removal test results of blast furnace slag according to an embodiment of the present invention.

At this time, the particle size of the blast furnace slag is 50 to 150 μm, the adsorption time is 1 hour, the stirring speed is 200 rpm, the test water is 100 ml, and the phosphorus reagent is KH ₂ PO ₄ .

As can be seen from FIG. 4, as the weight of the blast furnace slag increases, the phosphorus removal rate also increases proportionally, and the phosphorus concentration decreases inversely. As a result, the blast furnace slag Can be confirmed.

time T-P aqueous solution 10 ppm T-P aqueous solution 20 ppm T-P aqueous solution 30 ppm 0 10 20 30 One 5.9 11.4 18.6 2 4.3 9.8 13.3 3 2.2 6.2 10.2 6 1.3 3.3 5.4 9 0.5 1.2 2.2 12 0.1 0.2 0.9 18 0 0 0.2 24 0 0 0

5 and Table 4 show the phosphorus removal performance of the blast furnace slag according to an embodiment of the present invention over time.

In this case, the particle diameter of the blast furnace slag is 50 to 150 탆, the amount of the blast furnace slag used is 100 g, the phosphorus reagent is KH ₂ PO ₄ , and the phosphorus reagent is used in the amounts of 10 ppm 100 ml, 20 ppm 100 ml and 30 ppm 100 ml.

As shown in FIG. 5 and Table 4, when the bottom ash according to the present invention was added, the concentration of TP aqueous solution of 10 ppm, 20 ppm and 30 ppm was drastically decreased, and after 24 hours, It is possible to confirm the phosphorus adsorption performance of the blast furnace slag according to the present invention.

The binder is an organic binder for binding gamma alumina, bottom ash or basalt waste powder and blast furnace slag described above as a liquid binder, and preferably includes polyvinyl alcohol (PVA) and methyl cellulose (MC) But is not limited thereto.

At this time, the weight ratio of the polyvinyl alcohol and the methyl cellulose is preferably 1: 1 to 0.7: 1.3.

Regarding the total compounding ratio, the gamma alumina may be contained in an amount of about 20 to 70 parts by weight, preferably 30 to 60 parts by weight, and the bottom ash or the basalt waste powder is about 10 to 50 parts by weight, preferably about 15 to 45 parts by weight And the blast furnace slag may be contained in an amount of about 10 to 20 parts by weight, preferably 15 parts by weight, and the binder may be included in an amount of about 5 to 15 parts by weight, preferably about 10 parts by weight.

6 is a flowchart illustrating a method for producing an adsorbent for removing phosphorus in water according to an embodiment of the present invention.

Referring to FIG. 6, an adsorbent composition for removing phosphorus in water is first mixed to prepare a mixture for an adsorbent.

The adsorbent composition includes all of the above contents, and the compounding materials are prepared through a pretreatment, and then the mixture is put into a stirrer and mixed.

It can then be put into a ventilator to form granules through granulation.

These granules can be dried by putting them in a dryer, and it is preferable to dry the granules at 110 캜 for 3 hours or more.

The dried granules may be prepared as an adsorbent for phosphorus removal through heat treatment, specifically, by calcination treatment at 300 to 400 ° C for 30 minutes to 1 hour (rotary kiln atmospheric pressure condition). More preferably, the heat treatment can be calcined at 370 占 폚 for 30 minutes and then calcined at 400 占 폚 for 10 minutes.

The phosphorus removal adsorbent may be utilized as a teabag type adsorbent or an adsorbent for filling a filter to be described later.

division
Gamma alumina
(wt%) Liquid binder
(wt%) Bottom ash or
Basalt waste
(wt%)
Blast furnace slag
(wt%) PVA MC Example 1 30 5 5 45 15 Example 2 40 5 5 35 15 Example 3 50 5 5 25 15 Example 4 60 5 5 15 15

division Maximum adsorption amount (mg / L) burglar Specific surface area (m2 / g) 1 time Episode 2 3rd time 4 times 300 ° C 350 ℃ 400 ° C 300 ° C 350 ℃ 400 ° C Example 1 169 178 165 172 4.5 4.7 4.9 150 224 280 Example 2 234 242 246 243 5.3 5.3 5.5 180 236 272 Example 3 352 366 362 360 5.9 6.0 6.2 260 274 279 Example 4 399 406 410 402 6.2 6.2 6.4 290 310 330

Table 5 shows the composition ratios of the adsorbent compositions according to Examples 1 to 4 of the present invention. Table 6 shows the results of phosphorus adsorption of the adsorbent for removing phosphorus in water, Performance and physical properties.

As can be seen from the above table, it can be confirmed that the phosphorus adsorption performance is excellent due to mixing with components having excellent adsorptivity of Examples 1 to 4 of the present invention.

The comparison of Examples 1 to 4 shows that the higher the content of gamma-alumina is, the higher the strength and the specific surface area. The increase in the specific surface area means that the porosity characteristic is improved, And the maximum adsorption amount due to the porosity characteristic was also found to be the highest.

7 illustrates an adsorption apparatus for removing phosphorous in water according to an embodiment of the present invention.

7, an adsorption apparatus 10 for removing phosphorus in water according to an embodiment of the present invention includes an adsorbent 100 for removing phosphorus in water produced by the above-described production method, And a filter bag 110 including the adsorbent 100 and passing the phosphor while preventing the adsorbent 100 from flowing out to the outside.

At this time, the adsorption apparatus 10 for removing phosphorus in the water according to an embodiment of the present invention includes a filter bag 110 connected to the filter bag 110 by a string 120, (130).

The pressing rubber 130 is preferably a cube which can be firmly pressed and fixed to the glass wall of the aquarium or the inner wall of the farm, but is not limited thereto and may include all the pressing devices for pressing on the wall.

The filtration bag 110 may be composed of a filter paper having a smooth inflow and outflow of water, so that the process of adsorbing phosphorus in the water to the adsorbent 100 in the filtration bag 110 can be continuously implemented.

FIG. 8 is a view showing the state of use of the adsorption apparatus of FIG. 7. As described above, the adsorption apparatus 10 according to an embodiment of the present invention can be mounted on the inner wall 10a of the aquarium, Can be removed by being introduced into the filter bag 110 and adsorbed on the adsorbent 100.

As the phosphorus in the water is adsorbed to the adsorbent 100 inside the filter bag 110, microalgae are generated around the adsorbent 100. When the adsorbed amount exceeds the standard, It can be removed and replaced with a new teabag type adsorption device.

9 shows an adsorption apparatus for removing phosphorus in water according to another embodiment of the present invention.

9, an adsorption apparatus for removing phosphorus in water according to another embodiment of the present invention can be applied to a filter 30 used in a general aquarium. Specifically, the adsorption apparatus for removing phosphorus An adsorbent (100) comprising: a receiving part (140) for providing a space for containing the adsorbent (100) therein; an inlet (150) formed at one end of the receiving part (140) And a discharge port 160 formed at the other end of the receiving part 140 for filtering and discharging the inflowed water.

In this case, a sponge cell structure 170 for removing excreta of fish may be provided in the accommodating part 140, and a ball type or ring type adsorbent 100 ) Can be arranged and used.

10 is a flowchart illustrating a method of regenerating an adsorbent for removing phosphorus in water according to an embodiment of the present invention.

Referring to FIG. 10, first, the adsorbent for removing phosphorus in the water described above is used in water to recover adsorbed phosphorus.

At this time, it is possible to collect the adsorbent used from the customer who has the farm or the aquarium by courier or visit.

Then, the recovered adsorbent is put into a microalgae incubator to cultivate the microalgae.

The microalgae incubator in the regeneration process can utilize the existing equipment and can diffuse the microalgae to the maximum by keeping the sample at 30 to 36 ° C for 7 to 10 days by irradiating visible light.

Then, the microalgae are extracted and removed from the adsorbent in which the microalgae have been cultured. At this time, it is possible to extract and remove the microalgae by the retro-filtration method.

The extracted microalgae can be fertilized after drying, treated with waste, or removed by ultrasonic or ozone oxidation.

Then, the adsorbent from which microalgae have been removed is washed. Before washing, the adsorbent from which microalgae have been removed may be introduced into the ozone oxidation vessel, and ozone may be injected at a rate of 10 g / hr for 1 hour.

In this case, the adsorbent having microalgae removed may be washed with hydrogen peroxide or ozone and then washed with normal water. When the pH of the purified water is in the range of 6 to 8, Do.

Finally, the washed adsorbent can be reused and put into a filter bag as described above to be used as a teabag type adsorption apparatus or as a filter filler.

division
Maximum adsorption amount (mg / L) Play once Refresh Rate (%) Play 2 times Refresh Rate (%) Play 3 times Refresh Rate (%) Example 1 157.4 92 125.4 73.3 100.8 58.9 Example 2 222.3 92.1 177.6 73.6 142.6 59.1 Example 3 330.6 91.8 263.9 73.3 210.4 58.4 Example 4 370.4 91.6 289.7 71.7 230.8 57.1

Table 7 shows the results of confirming whether the sample to which the composition ratio of the composition of Table 5 was applied was regenerated.

As can be seen from the above Table 7, the maximum adsorption power according to the single regeneration was measured to be very good, and the regeneration rate was superior to that of Examples 1 to 4 by 90% or more.

The regeneration rate was continuously decreased every time when the second regeneration and the third regeneration were further carried out. However, in all of the first to fourth embodiments, even when the regeneration was performed three times, the results were more than 50%.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

10: Adsorption device
10a: inner wall
20: Aquarium
30: Filter
100: adsorbent
110: Filter bag
120: line
130: Compression rubber
140:
150: inlet
160: Outlet
170: sponge cell structure

Claims (14)

Gamma alumina;
Bottom ash or basalt waste;
Blast furnace slag; And
An adsorbent composition for removing phosphorus in water comprising a binder.
The method according to claim 1,
Wherein the gamma alumina is contained in an amount of 30 to 60 parts by weight, and the bottom ash or the basalt waste powder is contained in an amount of 15 to 45 parts by weight.
3. The method of claim 2,
Wherein the blast furnace slag is 15 parts by weight and the binder is 10 parts by weight.
The method according to claim 1,
Wherein the gamma alumina, the bottom ash or the basalt waste slag, and the blast furnace slag have a particle diameter of 50 to 150 占 퐉.
The method according to claim 1,
Characterized in that the binder is a liquid and comprises polyvinyl alcohol (PVA) and methyl cellulose (MC).
6. The method of claim 5,
Wherein the weight ratio of the polyvinyl alcohol and the methyl cellulose is 1: 1 to 0.7: 1.3.
Mixing the adsorbent composition of any one of claims 1 to 6 to produce a mixture for adsorbent;
Granulating the mixture to form granules;
Drying the granules; And
And heat treating the dried granules to produce an adsorbent. The method for producing an adsorbent for removing phosphorus in water, comprising the steps of:
8. The method of claim 7,
Wherein the heat treatment is carried out at 300 to 400 ° C for 30 minutes to 1 hour.
9. The method of claim 8,
The heat-
And calcining at 370 ° C for 30 minutes and then calcining at 400 ° C for 10 minutes.
An adsorbent for removing phosphorus in water produced by the production method of claim 7; And
And a filter bag containing the adsorbent therein for passing the phosphor while preventing the adsorbent from flowing out to the outside.
11. The method of claim 10,
Further comprising a pressing rubber connected to the filter bag and the filter bag for attaching the filter bag.
An adsorbent for removing phosphorus in water produced by the production method of claim 7;
A receiving part for providing a space for containing the adsorbent therein;
An inlet formed at one end of the receiving part for introducing water in the water; And
And a discharge port formed at the other end of the receiving part for filtering and discharging the inflow water.
Recovering phosphorus-adsorbed adsorbent, wherein the adsorbent for removing phosphorus in water produced by the method of claim 7 is used in water;
Introducing the recovered adsorbent into a microalgae incubator to cultivate a microalgae;
Extracting and removing microalgae from the adsorbent in which the microalgae have been cultured;
Washing the adsorbent from which the microalgae have been removed; And
And reusing said washed adsorbent. ≪ RTI ID = 0.0 > 11. < / RTI >
14. The method of claim 13,
The step of washing the adsorbent from which the microalgae have been removed may further comprise:
Hydrogen peroxide or ozone, followed by washing with ordinary water. The method for regenerating an adsorbent for removing phosphorus in water.

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