JP6377130B2 - Adsorbent for water treatment, production method thereof, water treatment device, cartridge for water treatment device, and water treatment method - Google Patents

Description

  The present invention relates to a water treatment adsorbent, a production method thereof, a water treatment device, a cartridge for water treatment device, and a water treatment method.

  Patent Document 1 discloses a conventional water treatment adsorbent. In this adsorbent, a hydrated oxide of a rare earth element such as cerium (Ce) is supported on an organic polymer material. For example, an adsorbent in which the rare earth element is cerium is obtained by, for example, forming hydrated cerium by neutralizing cerium chloride and then forming a mixture containing the organic polymer material and the hydrated cerium into granules. .

  For example, when contaminated water contaminated with arsenic (As) is brought into contact with this adsorbent and treated, the cerium hydrated oxide in the adsorbent can adsorb arsenic at a high concentration. For this reason, it is possible to obtain purified water from which arsenic has been removed from contaminated water at a high concentration. This adsorbent is said to be capable of adsorbing harmful substances such as fluorine and boron. In addition, cerium oxide and harmful substances can be adsorbed in the same manner as cerium hydrated oxide.

JP-A 61-187931

  However, since the conventional adsorbent contains a large amount of organic polymer material, there is a concern that the removal efficiency of arsenic and other harmful substances is not sufficient. For this reason, the adsorbent which can remove arsenic etc. more effectively than this adsorbent is calculated | required.

  Specifically, in Southeast Asia and other regions such as Vietnam, arsenic is easily contained in shallow formations, and groundwater pumped from wells is said to be easily contaminated with arsenic. In addition, it is said that arsenic contained in underground minerals is likely to elute into groundwater due to development. When a person ingests the groundwater or food grown by the groundwater, he or she loses life due to arsenic poisoning. For this reason, in such an area, an adsorbent that can more effectively remove arsenic and the like from groundwater is desired.

  The present invention has been made in view of the above-mentioned conventional situation, and provides a water treatment adsorbent, a water treatment device, and a water treatment method that can more effectively remove arsenic and other harmful substances. It is an issue that should be done.

The adsorbent for water treatment according to the present invention contains cerium oxide , and is made porous by removing the flocculant and foreign matter from the waste material subjected to glass polishing and granulating by spray drying. And

  Since the adsorbent of the present invention is made porous by granulation by spray drying, it has a much larger surface area than before. For this reason, this adsorbent has a much larger contact area with the contaminated water than before, and cerium oxide more effectively adsorbs arsenic and other harmful substances.

  Therefore, according to the adsorbent of the present invention, arsenic and other harmful substances can be more effectively removed.

Method for producing a water treatment adsorbent of the present invention, viewed contains cerium oxide, and a recovery step of recovering the waste material was subjected to polishing glass,
A flocculant removing step of heating the waste material to burn the flocculant and obtaining a material from which the flocculant is removed from the waste material;
A slurry adjusting step for obtaining a slurry comprising the material and water ;
A foreign matter removing step of removing foreign matter from the slurry;
A spray-drying step of forming a porous powder by spray-drying and granulating the slurry after the foreign matter removing step .

  The adsorbent of the present invention can be produced by the production method of the present invention. In addition, when using the adsorbent used in the water treatment method, the harmful substances were eluted with an alkaline solution or the like in the powder or powder aggregate, or the harmful substances were eluted into the dispersion medium or the like in the slurry adjustment process. Thereafter, it is possible to regenerate the adsorbent by separating the harmful substances.

  The method for producing an adsorbent for water treatment according to the present invention preferably includes a powder assembly step in which powders are aggregated to form a powder aggregate. In this case, since it becomes difficult for the adsorbent to elute into the contaminated water or purified water, the leakage resistance is improved, and recontamination of the purified water can be prevented. Moreover, handling becomes easy by making a powder aggregate into desired shapes, such as a granular form, a string form, a strip | belt shape, and plate shape.

  In the powder assembly step, the powder can be fired at 150 to 1000 ° C. to produce a granular adsorbent. In the powder assembling step, it is also possible to produce an adsorbent such as particles by solidifying or secondary agglomerating the powder with a binder. As the binder, it is preferable to employ a hydrophilic binder such as PVA.

  As a raw material, high-purity cerium oxide can be used, but a waste material subjected to glass polishing is preferable. In this case, the manufacturing cost of the adsorbent can be reduced.

  That is, cerium oxide can be used for polishing liquid crystal panels and glass. Most of this cerium oxide for polishing relies on imports, and in recent years it has become difficult to obtain. The cerium oxide for polishing is suspended in water and used. After polishing, the cerium oxide is processed by a waste water treatment process. For this reason, in the waste material which performed glass grinding | polishing, the cerium oxide exists in the form aggregated with the flocculant with the grinding | polishing waste etc. of glass. For this reason, when the waste material is adopted as the raw material of the adsorbent of the present invention, it is preferable to perform a flocculant / foreign matter removal step of removing the flocculant and the foreign matter from the waste material to a certain extent.

  In the flocculant / foreign matter removing step, first, the waste material can be heated to burn the organic flocculant contained in the waste material. Further, it is possible to disperse a material in which an organic flocculant is combusted, to prepare a slurry whose pH is adjusted, and to perform a high gradient magnetic separation method using an opposed permanent magnet or the like. Thereby, iron-based compound particles can be removed. Further, the magnetic Archimedes method using a superconducting magnet or the like can be performed on the slurry from which the iron-based compound particles have been removed. Thereby, it is possible to remove the grinding | polishing waste of glass. Depending on the type of flocculant, alumina particles may also be mixed into the slurry, but the alumina particles can also be removed by the magnetic Archimedes method. Thus, cerium oxide can be recovered at a high rate.

The water treatment apparatus of the present invention includes a supply port to which contaminated water contaminated with arsenic and other harmful substances is supplied, a treatment chamber in communication with the supply port, a discharge chamber for communicating with the treatment chamber and discharging purified water. A housing formed with an outlet;
A water treatment apparatus provided with the water treatment adsorbent provided in the treatment chamber and adsorbing the harmful substances from the contaminated water to form the purified water;
The adsorbent for water treatment contains cerium oxide , and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing, and granulated by spray drying. .

  With the water treatment apparatus of the present invention, it is possible to obtain purified water from which harmful substances are removed from contaminated water at a high concentration. In particular, since the adsorbent of the present invention is employed, harmful substances can be removed more effectively than before.

  It is preferable that a cartridge is detachably provided in the processing chamber. The cartridge may be formed with an introduction port for introducing contaminated water supplied to the processing chamber, an adsorption chamber communicating with the introduction port, and an outlet port communicating with the adsorption chamber and leading purified water to the discharge port. . The adsorption chamber is preferably filled with the adsorbent.

  In this case, if the adsorption performance of the adsorbent in the cartridge decreases, the cartridge is removed from the water treatment device and replaced with a new cartridge filled with an adsorbent with high adsorption performance, thereby improving the purification capacity of the water treatment device. Can be recovered. The adsorbent in the cartridge can be transported while being filled in the cartridge, regenerated, filled in the cartridge for replacement again, and reused. Thus, handling of the adsorbent becomes easy.

The cartridge for a water treatment apparatus of the present invention discharges purified water through a supply port to which contaminated water contaminated with arsenic or other harmful substances is supplied, a treatment chamber communicating with the supply port, and the treatment chamber. A housing in which a discharge port is formed;
Used in a water treatment apparatus provided in the treatment chamber, comprising a water treatment adsorbent that adsorbs the harmful substances from the contaminated water to form the purified water,
A cartridge for a water treatment apparatus detachably provided in the treatment chamber,
An inlet that introduces the contaminated water supplied to the treatment chamber, and an adsorption that is connected to the inlet and is filled with an adsorbent for water treatment that adsorbs the harmful substances from the contaminated water to form purified water. A chamber and a lead-out port that communicates with the adsorption chamber and leads the purified water to the discharge port;
The adsorbent for water treatment contains cerium oxide , and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing, and granulated by spray drying. .

  In this case, recovery of the purification ability of the water treatment device can be easily performed. Moreover, handling of the adsorbent is facilitated.

The water treatment method of the present invention is a water treatment method using purified water to treat contaminated water contaminated with arsenic and other harmful substances to obtain purified water,
The water treatment apparatus includes a housing in which a supply port to which the contaminated water is supplied, a treatment chamber that communicates with the supply port, a discharge port that communicates with the treatment chamber and discharges the purified water,
A water treatment adsorbent provided in the treatment chamber and adsorbing the harmful substances from the contaminated water to form the purified water;
The adsorbent for water treatment contains cerium oxide , and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing, and granulated by spray drying. .

  In this case, harmful substances can be removed more effectively.

  In the water treatment method of the present invention, it is preferable that a cartridge is detachably provided in the treatment chamber. The cartridge may be formed with an introduction port for introducing contaminated water supplied to the processing chamber, an adsorption chamber communicating with the introduction port, and an outlet port communicating with the adsorption chamber and leading purified water to the discharge port. . The adsorption chamber is preferably filled with the adsorbent.

  In this case, recovery of the purification ability of the water treatment device can be easily performed. Moreover, handling of the adsorbent is facilitated.

  According to the water treatment adsorbent, water treatment apparatus and water treatment method of the present invention, arsenic and other harmful substances can be more effectively removed.

It is process drawing which shows the manufacturing method of the 1st, 2nd adsorption agent for water treatment of an Example. It is a 2000 times SEM photograph of the 1st adsorbent for water treatment of an example. It is a 40000 times SEM photograph of the 1st adsorption agent for water treatment of an example. It is a schematic diagram which shows a test apparatus. It is a graph which shows the result of adsorption | suction performance. It is a schematic cross section of the water treatment apparatus of an Example. It is a schematic cross section of the conventional water supply apparatus. It is a schematic cross section of the water supply apparatus of an Example.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below along with tests with reference to the drawings.

(Method for producing adsorbent)
As shown in FIG. 1, in the recovery step S1, waste materials subjected to glass polishing are recovered as raw materials. This waste material contains foreign substances such as coagulant such as polyaluminum chloride (PAC) and iron chloride, and glass polishing scraps, together with cerium oxide.

  For this reason, in the flocculant / foreign matter removing step S2, first, the waste material after the collecting step S1 was heated at 300 ° C. for 2 to 3 hours to burn the organic flocculant. Moreover, the slurry which consists of 5-30 mass% of materials which burned the organic type flocculant and 70-95 mass% of water is prepared. And after adjusting the pH of this slurry to pH 2-7, the high gradient magnetic separation method using an opposing permanent magnet is performed. Thereby, it is possible to remove the iron-based compound particles in the slurry. Moreover, the magnetic Archimedes separation method using a superconducting magnet is performed on the slurry subjected to the high gradient magnetic separation method. Thereby, it is possible to remove the glass polishing waste and the alumina powder from the slurry.

  The high gradient magnetic separation method and magnetic Archimedes separation method are described in "Recovering rare earths using superconducting magnetic force control" (Fumito Mishima, Shigehiro Nishijima (Osaka Univ.), Yasuhiro Maeda (Maeda Materials), Material: Electricity Proceedings of the Annual Conference of the Society of Japan: 2013 Issue: 6 pages: 6.S7 (11) -6.S7 (14), Publication date: March 05, 2013), “Magnetic Separation System for Glass Abrasive Recovery” Study on Magnetic Separation System for Recovery of Glass Polishing Agent ”(Koji Hashiguchi, Fumito Mishima, Kyoko Akiyama, Shigehiro Nishijima (Osaka University), Akihiro Maeda (Maeda Materials), Superconducting Applied Power Equipment Study Group, The Papers of Technical Meeting on "Application of Superconductivity", IEE Japan, January 2013), "High Gradient Superconducting Magnetic Separation for Iron Removal from the Glass Polishing Waste" (F. Mishima, T. Terada, Y. Akiyama and S .Nishijima :, IEEE Trans. Appl. Supercond. 21 (2011) 2059-2062), “Fun damental study on recovery of resources by magnetic separation using superconducting bulk magnet ”(S. Okada, F. Mishima, Y. Akiyama, S. Nishijima, Physica C: Superconductivity, Vol. 471, Issue 21-22, pp. 1520-1524 (2011.11)), "Magnetic Separation System for Recovery of Glass Polishing Agent" (K. Hashiguchi, F. Mishima, Y. Akiyama, E. Maeda and S. Nishijima :, IEEE Trans. Appl. Supercond. (2013), vol23, (3), Page (s) 3700204) and the like.

  As the subsequent slurry adjustment step S3, a wet mill apparatus filled with countless alumina balls is prepared. Then, using water as an additional solvent, the slurry after the coagulant / foreign matter removing step S2 is charged into the wet mill apparatus, and the wet mill apparatus is operated. At this time, an appropriate amount of a dispersant can also be added. Further, when a hydrophilic binder is used in the powder assembly step S5 described later, an appropriate amount of a hydrophilic binder can also be added here. Thus, a slurry having an average particle size (D50) of 0.01 to 5.00 μm was obtained.

  Thereafter, the slurry after the slurry adjustment step S3 is subjected to a spray drying step S4 using a spray dryer in the atmosphere. The drying temperature of the spray dryer is 150 to 700 ° C. Thus, the first adsorbent granulated into a granule can be obtained. The average particle diameter (D50) of the obtained first adsorbent is 10 to 1000 μm.

Further, a powder collection step S 5, the first adsorbent after spray drying step S4, calcined at 500 ° C in air. Thus, the second adsorbent granulated in a granular form can be obtained. The average particle diameter (D50) of the obtained second adsorbent is 10 to 1000 μm.

(Adsorbent)
FIG. 2 shows a 2000 times SEM photograph of the first adsorbent, and FIG. 3 shows a 40000 times SEM photograph. As is apparent from FIGS. 2 and 3, the first adsorbent obtained above is made porous by granulation by spray drying.

The BET specific surface area of the first and second adsorbents was 30.0 to 80.0 m ² / g.

(Confirmation of adsorption performance 1)
A test apparatus shown in FIG. 4 was prepared. This test apparatus has a raw water tank 1, a column 5 connected by the raw water tank 1 and the pipe 3, and a purified water tank 9 connected by the column 5 and the pipe 7.

  Contaminated water 11 is stored in the raw water tank 1. The contaminated water 11 has an arsenic concentration of 10 ppm. The pipe 3 can supply the contaminated water 11 into the column 5 from below to above. The column 5 is filled with a second adsorbent 13. As the second adsorbent 13, two kinds of adsorbents A and B obtained from different waste materials were employed. The particle sizes of the adsorbents A and B are less than 500 μm. The piping 7 can supply purified water 15 existing above the column 5 into the purified water tank 9.

  The contaminated water 11 was passed through the pipe 3, the column 5, and the pipe 7, and the purified water was stored in the purified water tank 9. Arsenic residue confirmation 1 and 2 was performed on the purified water 15.

  In the residual confirmation 1, a reagent (Pac Test DPR-As (Kyoritsu Riken)) was added to the purified water 15 to confirm the presence or absence of coloring. If the reagent is colorless even if the reagent is added, the residual amount of arsenic is very small and is acceptable. On the other hand, if there is a color such as blue by adding a reagent, the residual amount of arsenic is large and it is rejected.

  In the residual confirmation 2, a reagent (Mercoquant (registered trademark) arsenic test (MERCK)) was added to the purified water 15 to confirm the presence or absence of coloring. If the reagent is colorless even if the reagent is added, the residual amount of arsenic is very small and is acceptable. On the other hand, if it becomes colored by adding a reagent, the residual amount of arsenic is large, which is unacceptable.

  In addition, the adsorbents A and B after passing water are measured by fluorescent X-ray quantitative analysis (order analysis: SFP method, equipment used: RIGAKU / RIX-3000) to measure the content of arsenic in the adsorbents A and B. did. The amount of adsorption was confirmed from the difference before and after water flow.

  Table 1 shows the results when the column 5 is filled with about 300 mL (about 400 g) of the adsorbent A and the water flow rate is 3 L / h (SV (space velocity) value = 10). Residual confirmation 1 was performed once per process (at the end of the entire process). In addition, analysis values of the adsorbent A before the treatment are shown in Table 2, and analysis values of the adsorbent A after the treatment are shown in Table 3.

  From Tables 1 to 3, it is considered that the adsorbent A can adsorb 3.0 g of arsenic per 1 L of volume and 2.2 g of 1 kg of weight.

  Table 4 shows the results when the column 5 is filled with about 150 mL (about 105 g) of the adsorbent B and the water flow rate is 1.5 L / h (SV value = 10). Residue confirmations 1 and 2 were performed twice per process (at the time of half-volume processing and at the time of full-volume processing). In the last treatment, in the residual confirmation 2, it was colorless at the time of half amount treatment, but became colored at the time of full treatment. In addition, analysis values of the adsorbent B before treatment are shown in Table 5, and analysis values of the adsorbent B after treatment are shown in Table 6.

  From Tables 4 to 6, it is considered that the adsorbent B can adsorb 6.2 g per liter of volume and 8.9 g of arsenic per kg of weight.

(Confirmation of adsorption performance 2)
With the test apparatus shown in FIG. 4, the contaminated water 11 was treated with 300 mL of adsorbent A (SV value = 10), and the arsenic concentrations of the contaminated water 11 and the purified water 15 were measured. The results are shown in Table 7.

  From Table 7, it can be seen that the adsorbents A and B adsorb arsenic in the contaminated water 11 at a high concentration.

(Confirmation of adsorption performance 3)
In addition, the contaminated water 11 having an arsenic concentration of 20 ppm was passed through 1 kg of the adsorbent A using the test apparatus shown in FIG. FIG. 5 shows the relationship between the water passage time (h) and the total adsorption amount (g) of arsenic.

  FIG. 5 shows that when the well water contains less than 1 ppm of arsenic, it takes 300 to 400 hours for the adsorbent to adsorb arsenic to saturation.

(Confirmation of adsorption performance 4)
Adsorbent C having an average particle size of 5 mm was granulated without performing the flocculant / foreign matter removing step S2 shown in FIG.

  Then, the contaminated water 11 having an arsenic concentration of 10 ppm was passed through 300 g of the adsorbents A and C using the test apparatus shown in FIG. The results are shown in Table 8.

  From Table 8, it can be seen that the adsorbent C also has a certain degree of arsenic adsorption capability if the water flow rate is reduced or the number of water passes is increased. However, it can be seen that with the adsorbent C, not only clean purified water cannot be obtained due to the flocculant and foreign matter, but also the processing takes time and the adsorbing capacity is deteriorated in a short time. This is because the adsorbent C is not porous like the adsorbents A and B, and the surface area is much smaller than the adsorbents A and B. On the other hand, it is understood that the adsorbent A adsorbs arsenic in the contaminated water 11 at a high concentration and has a long lifetime. In other words, the adsorbent A has an adsorption performance about 6 times that of the adsorbent C.

(Water treatment device and its cartridge)
As shown in FIG. 6, the water treatment device 50 of the embodiment has a resin housing 51 and a cartridge 53.

  The housing 51 includes a housing main body 55 and a lid member 57 fixed to the upper part of the housing main body 55. The lid member 57 is formed with a supply port 57a that opens in the horizontal direction and a discharge port 57b that opens in the horizontal direction on the opposite side of the supply port 57a. The housing main body 55 and the lid member 57 are fixed to each other to form an upstream flow path 51a that extends in the horizontal direction and communicates with the supply port 57a and then extends downward, and communicates with the discharge port 57b. Thus, a downstream flow path 51b extending in the horizontal direction is formed. The housing body 55 and the lid member 57 are formed with a processing chamber 51c that communicates the upstream flow path 51a and the downstream flow path 51b.

  A cartridge 53 is provided in the processing chamber 51c. The cartridge 53 can be attached to and detached from the housing 50 by removing the lid member 57 from the housing main body 55.

  The cartridge 53 includes a resin cartridge main body 53a formed in a cylindrical shape, and water-permeable filters 53b and 53c fixed to both ends of the cartridge main body 53a. The cartridge main body 53a is fixed to the housing 50 in an airtight state. When the cartridge 53 is attached to the housing 50, one of the filters 53b and 53c serves as an inlet and the other of the filters 53b and 53c serves as an outlet. A space between the filter 53b and the filter 53c is an adsorption chamber 53d. The second adsorbent 13 is filled in the adsorption chamber 53d. It is possible to fill the adsorbing chamber 53d with the first adsorbent.

(Water treatment method)
The water treatment apparatus 50 of an Example is used in the use environment shown in FIG. 7 in Southeast Asia etc. In this use environment, a pipe 71 is connected in the well 70, and the pipe 71 is connected to a water storage tank 73 on the ground. The pipe 71 conveys the groundwater in the well 70 to the water storage tank 73. A pipe 75 is connected to the water storage tank 73. When a person intends to use groundwater for drinking, he opens the pipe 75 and stores the groundwater in a container 77 or the like.

  As shown in FIG. 8, the water treatment apparatus 50 has a supply port 57a connected to a pipe 75a connected to the water storage tank 73 and a discharge port 57b connected to the pipe 75b. When a person intends to use groundwater for drinking, the person opens the pipe 75b and stores the groundwater in the container 77 or the like.

  Even if groundwater is contaminated with harmful substances such as arsenic, this water treatment apparatus 50 can provide purified water from which harmful substances have been removed from groundwater at a high concentration. In particular, since the second adsorbent 13 is employed, harmful substances can be removed more effectively than before.

  If the adsorption performance of the second adsorbent 13 in the cartridge 53 decreases due to long-term use, the lid member 57 is opened, the cartridge 53 is removed from the water treatment device 50, and the cartridge 53 is replaced with a new one. The new cartridge 53 is filled with the second adsorbent 13 having high adsorption performance. In this way, the purification capability of the water treatment device 50 can be easily recovered. Since the cartridge 53 has no distinction between the upper and lower sides, there is no need for trouble when replacing the cartridge 53.

  The collected cartridge 53 is transported to Japan or the like. The second adsorbent 13 in the cartridge 53 is regenerated in Japan or the like. The regenerated second adsorbent 13 is filled again into the empty cartridge 53, and is replaced with a replacement cartridge 53, which is conveyed to the site. Thus, the second adsorbent 13 is also reused. Thus, handling of the second adsorbent 13 is facilitated.

  While the present invention has been described with reference to the embodiments, it is needless to say that the present invention is not limited to the above-described embodiments and can be appropriately modified and applied without departing from the spirit thereof.

  For example, the water treatment device 50 may be filled with the first adsorbent. Further, the adsorbent may be a string, a band, a plate, or the like. Moreover, the water treatment apparatus 50 may have various shapes. Furthermore, the cartridge 53 can also have various shapes.

  INDUSTRIAL APPLICABILITY The present invention can be used for water supply business, water purification equipment, factory wastewater treatment including arsenic, and the like.

13 ... Adsorbent for water treatment (second adsorbent)
S3 ... Slurry adjustment step S4 ... Spray drying step S5 ... Powder assembly step 11 ... Contaminated water 57a ... Supply port 51c ... Treatment chamber 15 ... Purified water 57b ... Discharge port 51 ... Housing 50 ... Water treatment device 53 ... Cartridge 53b ... Introduction Mouth (filter)
53d ... Adsorption chamber 53c ... Outlet (filter)

Claims (9)

A water treatment adsorbent characterized in that it contains cerium oxide and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing and granulating by spray drying. Only contains cerium oxide, and a recovery step of recovering the waste material was glass polishing,
A flocculant removing step of heating the waste material to burn the flocculant and obtaining a material from which the flocculant is removed from the waste material;
A slurry adjusting step for obtaining a slurry comprising the material and water ;
A foreign matter removing step of removing foreign matter from the slurry;
A method for producing an adsorbent for water treatment, comprising: a spray-drying step of forming a porous powder by spray-drying and granulating the slurry after the foreign matter removing step . 3. The method for producing an adsorbent for water treatment according to claim 2 , wherein the foreign matter removing step performs a high gradient magnetic separation method or a magnetic Archimedes separation method after adjusting the slurry to pH 2-7 . The method for producing an adsorbent for water treatment according to claim 2 or 3, further comprising a powder assembling step for aggregating the powder into a powder aggregate. A housing formed with a supply port to which contaminated water contaminated with arsenic or other harmful substances is supplied, a treatment chamber communicating with the supply port, and a discharge port communicating with the treatment chamber and discharging purified water; ,
A water treatment apparatus provided with the water treatment adsorbent provided in the treatment chamber and adsorbing the harmful substances from the contaminated water to form the purified water;
The adsorbent for water treatment contains cerium oxide , and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing, and granulated by spray drying. Water treatment equipment. A cartridge is detachably provided in the processing chamber,
The cartridge has an introduction port for introducing the contaminated water supplied to the processing chamber, an adsorption chamber communicating with the introduction port, and a guide for communicating the purified water to the discharge port. An exit is formed,
The water treatment apparatus according to claim 5, wherein the adsorption chamber is filled with the water treatment adsorbent. A housing formed with a supply port to which contaminated water contaminated with arsenic or other harmful substances is supplied, a treatment chamber communicating with the supply port, and a discharge port communicating with the treatment chamber and discharging purified water; ,
Used in a water treatment apparatus provided in the treatment chamber, comprising a water treatment adsorbent that adsorbs the harmful substances from the contaminated water to form the purified water,
A cartridge for a water treatment apparatus detachably provided in the treatment chamber,
An inlet that introduces the contaminated water supplied to the treatment chamber, and an adsorption that is connected to the inlet and is filled with an adsorbent for water treatment that adsorbs the harmful substances from the contaminated water to form purified water. A chamber and a lead-out port that communicates with the adsorption chamber and leads the purified water to the discharge port;
The adsorbent for water treatment contains cerium oxide , and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing, and granulated by spray drying. Cartridge for water treatment equipment. A water treatment method using purified water by treating contaminated water contaminated with arsenic and other harmful substances using a water treatment device,
The water treatment apparatus includes a housing in which a supply port to which the contaminated water is supplied, a treatment chamber that communicates with the supply port, a discharge port that communicates with the treatment chamber and discharges the purified water,
A water treatment adsorbent provided in the treatment chamber and adsorbing the harmful substances from the contaminated water to form the purified water;
The adsorbent for water treatment contains cerium oxide , and is made porous by removing the flocculant and foreign substances from the waste material subjected to glass polishing, and granulated by spray drying. Water treatment method. A cartridge is detachably provided in the processing chamber,
The cartridge has an introduction port for introducing the contaminated water supplied to the processing chamber, an adsorption chamber communicating with the introduction port, and a guide for communicating the purified water to the discharge port. An exit is formed,
The water treatment method according to claim 8, wherein the adsorption chamber is filled with the water treatment adsorbent.

Images