KR101432802B1 - Absorbent using environment friendly material and making method thereof - Google Patents

Abstract

The present invention is characterized by comprising 20-30 wt% of seed powder of a Moringa tree, 25-30 wt% of crab skin powder, 5-15 wt% of bentonite, and 30-40 wt%of starfish skin powder.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an adsorbent using an eco-friendly material and an adsorbent using the same,

The present invention relates to an adsorbent using an eco-friendly material and a method for producing the adsorbent, and more particularly, to an adsorbent using an eco-friendly material comprising a morinda seed powder, a starfish shell powder and a crab shell powder, The present invention relates to an adsorbent using an environmentally friendly material and a method for producing the same.

In recent years, social interest in groundwater and soil pollution has been rising, and there has been a growing interest in soil pollution and groundwater pollution in Korea. However, in reality, when the soil is contaminated, the groundwater is generally contaminated. Soil purification and groundwater purification must be performed at the same time to achieve a complete purification target.

As a countermeasure for this, a method of excavating contaminated soil and treating the polluted ground water is to treat the polluted groundwater by pumping it, or to purify it by injecting microorganisms, nutrients, chemical treatment agents, etc., Has been developed and widely used.

Among the above methods, a method for purifying contaminated ground water is most commonly applied and is evaluated as a commercialized technology. Prior art related to a method and apparatus for treating wastewater including contaminated groundwater treatment including pumped- No. 10-0566057 discloses a sedimentation tank and a dewatering tank for separating oil and fine particles in the wastewater introduced into the tank by gravity, a water collecting tank for temporarily storing the wastewater introduced from the dewatering tank and the dewatering tank, A pressurized tank in which the wastewater pumped from the collecting tank is mixed with the chemical supplied from the chemical feed tank and the air supplied from the ejector and the pressurized wastewater is supplied from the pressurizing tank and the chemical is supplied from another chemical supply tank A line mixer that receives and chemically reacts to form particles, receives the wastewater containing the particles A skimmer that collects scum containing pollutants located on the flotation tank, a scum collected by the skimmer, is dehydrated and dehydrated using a dehydrating net and a mesh, and is separated And a reuse water tank which can receive the treated water separated from the floating tank and discharge the treated water separated from the floating tank and the treated water separated from the floating tank and used as the reused water in the car wash , The treated water separated from the floating tank is also supplied as a trench for reprocessing, and a wastewater treatment device capable of effectively treating wastewater by installing the wastewater in a narrow place such as a car wash located in a city center is known.

Korean Utility Model Registration No. 20-0162834 discloses a screen for screening contaminants of a predetermined size or more from wastewater, a sedimentation tank for sedimenting and separating an inorganic substance having a predetermined specific gravity or more from raw water having passed through the screen, A flow rate adjusting tank for collecting the raw water, a water separator for separating the oil from the raw water introduced from the flow rate adjusting tank, for collecting and removing the separated oil, for ozone-oxidizing the primary treated water in which the oil is separated and removed by the oil- An ozone oxidizing device and a scum separating process for separating the scum by mixing contaminants less than a predetermined specific gravity by microbubble formation using a pressure difference after mixing the secondary treatment water subjected to ozone oxidation treatment by the ozone oxidation device with pressurized water, Apparatus, a filter for filtering and adsorbing tertiary treatment water separated by scum by a scum separator, a filter There is a waste water treatment filtration systems and methods are known, characterized in that comprises a process water tank for collecting the number of final operations.

The background art of the present invention is disclosed in Korean Patent Registration No. 10-0984167 (published on Sep. 28, 2010, entitled " Method and apparatus for purifying contaminated groundwater in the invention).

Typical groundwater treatment systems are: sedimentation tanks, water tank tanks, catchment tanks, chemical tanks, sedimentation tanks, scrubbing tanks, pressurized floating tanks (including pressurized tanks, pumps and ejectors), air strippers, waste oil tanks, sludge tanks, It is difficult to reduce the installation cost required for the groundwater purification treatment process, and it is difficult to reduce the cost required for the maintenance of the purification device, and the installation space of the purification device There is a problem that it is difficult to reduce.

Therefore, there is a need for improvement.

The object of the present invention is to provide an adsorbent using an eco-friendly material, which is manufactured using an eco-friendly material composed of corn tree seed powder, starfish shell powder and crab shell powder and capable of removing PCE contained in ground water, and a method for producing the same. have.

The present invention relates to a method for producing a fermented soybean seed oil, comprising a morinda seed powder added in a proportion of 20 to 30 wt%, a crab shell powder added in a proportion of 25 to 35 wt%, bentonite added in a proportion of 5 to 15 wt% And a starch shell powder added at a ratio of 40% by weight to the starch shell powder.

The pore of the adsorbent of the present invention is characterized by being 15 to 25 Å.

The organic material content (organic C content) of the adsorbent of the present invention is 10 to 20%.

The present invention also relates to a method of making a beverage, comprising the steps of: (a) mixing Morinda seed powder, crab shell powder, starfish shell powder and bentonite; (b) vibrating the container containing the mixture prepared in the step (a) for a preset time; (c) centrifuging the mixture, which has been vibrated in step (b), into a centrifuge; (d) washing the mixture discharged from the centrifugal separator with washing water; (e) introducing the washed mixture into an oven to dry; And (f) pulverizing the dried mixture.

In the step (a) of the present invention, the morinda seed powder, which is added in a proportion of 20 to 30% by weight, the crab shell powder added in a proportion of 25 to 35% by weight, the ratio of 5 to 15% And a starch shell powder added in a proportion of 30 to 40% by weight.

The adsorbent using the eco-friendly material and the method for producing the same according to the present invention can be applied to a large-scale treatment facility using an adsorbent manufactured by using Morinda seed powder, starch shell powder, crab shell powder and bentonite which can be obtained from nature It is possible to reduce the time and cost required for the groundwater purification process.

FIG. 1 is a graph showing the results of analyzing components of an adsorbent according to an embodiment of the present invention through a mass spectrometer. FIG.
2 is a view showing an experimental apparatus for testing the PCE removal rate of an adsorbent according to an embodiment of the present invention.
FIG. 3 is a view showing a structure for filling an experimental apparatus with an adsorbent according to an embodiment of the present invention.
4 is a graph showing the change in the PCE removal rate of the adsorbent according to an embodiment of the present invention.

Hereinafter, an adsorbent using an eco-friendly material according to the present invention and a method of manufacturing the same will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a graph showing the results of analyzing the components of an adsorbent according to an embodiment of the present invention through a mass spectrometer, FIG. 2 is an experimental apparatus for testing the PCE removal rate of an adsorbent according to an embodiment of the present invention FIG. 3 is a view showing a structure for filling an adsorbent according to an embodiment of the present invention into an experimental apparatus, and FIG. 4 is a graph showing changes in PCE removal rate of an adsorbent according to an embodiment of the present invention.

1 to 4, an adsorbent using an eco-friendly material according to an exemplary embodiment of the present invention may be prepared by mixing a morinda bean seed powder added at a ratio of 20 to 30 wt% Crab shell powder, bentonite added in a proportion of 5 to 15% by weight, and starch shell powder added in a proportion of 30 to 40% by weight.

The physical and chemical characteristics of adsorbents comprising morinda seed powder, crab shell powder, starfish shell powder and bentonite are shown in Table 1, wherein the adsorbent according to the present invention is analyzed using a mass spectrometer to analyze the components of the adsorbent A data sheet is shown.

Crab shell powder is mainly composed of chitosan, and starfish shells contain substances such as calcium carbonate, chondroitin sulfate, magnesium, manganese, selenium and zinc.

Here, chitosan mainly acts as an adsorbent, and in particular, forms a functional group in chemical adsorption.

Calcium carbonate and magnesium act as a neutralizing agent, that is, by controlling the pH, thereby enhancing adsorption performance.

There are two types of seeds: cornwood seeds and barkless seeds. This example uses seedless seeds in cornwood seeds.

As described above, the main components of the adsorbent comprising Morinda seed powder, crab shell powder, starfish shell powder and Na-bentonite are Olein, Niazinin (A), Niazimicin (A) and the like.

The main constituent minerals of Na-bentonite (Al ₂ O ₃ .4SiO ₂ .9H ₂ O) are montmorillonite and videite-type smacktite, and are substances used for injection preventing agent, soil improvement agent, adsorbent and the like.

The properties of bentonite are fine clay, which is one of the natural lipid media having excellent swelling property, heavy metal adsorption property and ion exchange property.

Since the pores of the adsorbent are composed of 15 to 25 Å, they can be stored in the permeable reaction wall and used as a reaction medium utilizing the hydraulic flow of the groundwater contaminant.

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Since the permeable reaction wall in which the adsorbent of this embodiment is contained can purify the ground water at the position while maintaining the flow of the contaminated ground water, no separate post treatment is required and the groundwater can be economically purified .

Particularly, when the groundwater is not easily purified within a short time and the groundwater contamination is expected, the groundwater can be purified without changing the groundwater flow.

In addition, the adsorbent of this embodiment can adsorb or dissolve a hydrophobic organic compound effectively, and has a characteristic that a reaction occurs even under anaerobic conditions.

A column test was selected to test the performance of the adsorbent according to the present embodiment. The column test calculates the removal rate of the contaminants by the adsorbent and the contact time between the adsorbent and the contaminants required for purifying the contaminants .

The column used for the experiment is made of pyrex material and the length of the column is 2.5mm. The tube used for the experiment is made of teflon material.

A 3-way valve was installed at both ends of the column to collect samples. Seven ports were provided to extract the solution by connecting a syringe to the circumference of the column.

The inside of the column is filled with an adsorbent and ottawa sand as shown in Fig.

In the column (b), the adsorbent of the present invention forms one permeable reaction wall at 24 cm in the middle of the column, and the column (c) is filled with the adsorbent at a thickness of 12 cm to form 2 (B) and the column (c) are the same in amount of the adsorbent to be filled in the column (b) and the column (c).

After the column was completely installed, the PCE solution was dissolved in distilled water to prepare a 10 mg / L solution. The prepared PCE solution was passed through a peristatic pump at a rate of 2.5 mL / h (pumping rate) Is injected into the column.

Subsequently, 9 samples were collected at intervals of 10 days for 3 months at constant time, and 6 samples were collected at intervals of 15 days for 3 months thereafter.

Samples were taken at each column 3-way valve points using a syringe and 45 samples were collected for a total of 6 months.

As shown in the graph of FIG. 4, the Ottawa sand filled in the column (a) hardly showed a reaction effect as a permeable reaction wall during the experiment period of 6 months, and as a permeable reaction wall of about 5% There was an absorption effect, but there was no reaction effect after that.

In column (b) and column (c), most of the PCE was adsorbed or decomposed by the adsorbent and the results after 180 days of column (b) and column (c) were about 75% and about 45% It looked.

Particularly, the reaction effect of the column (c) as a permeable reaction wall showed a PCE removal rate of 90% in the period from the initial stage to the 50th day, a PCE removal rate of 85% from 80 days to 120 days, The PCE removal rate was 75% by 180 days.

As described above, the adsorbent according to the present invention removes 80%, 90%, and 90% of Cd, Zn, and Cu, respectively, after the coagulation of heavy metals, and the pH was kept constant at 6.8 to 7.0.

A method of manufacturing an adsorbent using an environmentally friendly material according to an embodiment of the present invention will now be described.

A method of manufacturing an adsorbent using an eco-friendly material according to an embodiment of the present invention includes the steps of mixing Morinda seed powder, crab shell powder, starfish shell powder and bentonite, and setting a container containing the mixture prepared in the mixing step A step of centrifuging the vibrating mixture into a centrifugal separator during the vibrating step, a step of washing the mixture discharged from the centrifugal separator with washing water, and a step of putting the washed mixture into an oven to dry , And grinding the dried mixture.

The mixing step comprises mixing a corn seed oil powder added at a ratio of 20 to 30 wt%, a crab shell powder added at a ratio of 25 to 35 wt%, a bentonite added at a ratio of 5 to 15 wt% To 40% by weight of the starch shell powder.

The mixture of the adsorbent mixed in the above-mentioned composition ratio in the step of mixing Morinda tree seed powder, crab shell powder, starfish shell powder and bentonite was put in a shaker, operated for 24 hours to vibrate the vessel, and then centrifuged (1,000 rpm, 10 min.) To separate the liquid and solid portions of the sorbent mixture (Morinda seed powder, crab shell powder, starfish shell powder, bentonite).

At this time, the solid-liquid separation is performed to discard the liquid in the upper part and provide only the lower solid part to the washing part in the next step.

Distilled water is used for washing water, and the washing step removes impurities such as bubbles and unnecessary shells formed in the mixture.

≪ Example 1 >

20% by weight of Moringa wood seed powder, 30% by weight of crab shell powder, 15% by weight of bentonite and 35% by weight of starch shell powder were mixed together with distilled water and placed in a vessel. After the vessel was vibrated for 24 hours, Is put into a separator, subjected to a centrifugal separation process, washed with washing water, put into an oven, dried and pulverized to prepare an adsorbent.

≪ Example 2 >

25% by weight of Morinda tree seed powder, 30% by weight of crab shell powder, 10% by weight of bentonite and 35% by weight of starch shell powder were mixed with distilled water and placed in a vessel. After vibrating the vessel for 24 hours, Is put into a separator, subjected to a centrifugal separation process, washed with washing water, put into an oven, dried and pulverized to prepare an adsorbent.

≪ Example 3 >

30% by weight of Morinda tree seed powder, 30% by weight of crab shell powder, 5% by weight of bentonite and 35% by weight of starch shell powder were mixed with distilled water and placed in a vessel. After vibrating the vessel for 24 hours, Is put into a separator, subjected to a centrifugal separation process, washed with washing water, put into an oven, dried and pulverized to prepare an adsorbent.

≪ Comparative Example 1 &

15% by weight of Morinda tree seed powder, 35% by weight of crab shell powder, 15% by weight of bentonite and 35% by weight of starch shell powder were mixed with distilled water and placed in a vessel. After the vessel was vibrated for 24 hours, Is put into a separator, subjected to a centrifugal separation process, washed with washing water, put into an oven, dried and pulverized to prepare an adsorbent.

≪ Comparative Example 2 &

35% by weight of Morinda tree seed powder, 25% by weight of crab shell powder, 5% by weight of bentonite and 35% by weight of starch shell powder were mixed with distilled water and placed in a vessel. After the vessel was vibrated for 24 hours, Is put into a separator, subjected to a centrifugal separation process, washed with washing water, put into an oven, dried and pulverized to prepare an adsorbent.

PCE removal rate between 1 and 50 days PCE removal rate between 80 and 120 days PCE removal rate between 150 and 180 days Example 1 88.12 83.36 72.22 Example 2 90.23 85.65 75.78 Example 3 90.87 86.45 77.36 Comparative Example 1 69.86 64.35 58.20 Comparative Example 2 90.11 84.27 77.52

When the Maingua seed powder is added in a proportion of 20 to 30% by weight as shown in Table 2, the PCE removal rate is 70% or more in the range of 150 to 180 days, and when the Maingine seed powder is added in an amount of 20% The PCE removal rate is remarkably lowered between 150 and 180 days.

The difference in the PCE removal rate between 150 and 180 days is not large as compared to the case where the morinda seed powder is added in an amount exceeding 30% by weight and the Morinda seed powder is added in a proportion of 30% by weight. It is preferable that the amount of the surfactant is in the range of 20 to 30% by weight.

Accordingly, it becomes possible to provide an adsorbent using an eco-friendly material which is manufactured using an eco-friendly material comprising morinda seed powder, starfish shell powder and crab shell powder, and which can remove PCE contained in ground water, and a method for manufacturing the same.

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 embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Although the adsorbent using an eco-friendly material and a method for producing the same have been described by way of example, the adsorbent of the present invention and a method for producing the same may also be used for an adsorbent using an environment- have.

Accordingly, the true scope of the present invention should be determined by the following claims.

Claims (5)

A corn husk seed powder added in a proportion of 20 to 30% by weight, crab shell powder added in a proportion of 25 to 35% by weight, bentonite added in a proportion of 5 to 15% by weight, and 30 to 40% By weight of a starch shell powder added in an amount of 0.1 to 5% by weight based on the total weight of the adsorbent.
The method according to claim 1,
Wherein the adsorbent has a pore size of 15 to 25 ANGSTROM.
delete (a) mixing Morinda seed powder, crab shell powder, starfish shell powder and bentonite;
(b) vibrating the container containing the mixture prepared in the step (a) for a preset time;
(c) centrifuging the mixture, which has been vibrated in step (b), into a centrifuge;
(d) washing the mixture discharged from the centrifugal separator with washing water;
(e) introducing the washed mixture into an oven to dry; And
(f) pulverizing the dried mixture. < RTI ID = 0.0 > 8. < / RTI >
5. The method of claim 4,
The step (a) may include a step of mixing the corn silicate seed powder added at a ratio of 20 to 30 wt%, the crab shell powder added at a ratio of 25 to 35 wt%, the bentonite added at a ratio of 5 to 15 wt% , And 30 to 40% by weight of a starch shell powder added to the mixture.

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