JPS6279812A - High-speed clarifier for polluted water - Google Patents

Abstract

PURPOSE:To obtain the titled clarifier capable of easily clarifying polluted water in a short time without necessitating a large-sized treating plant by allowing liparite, etc., whose particle size is appropriately regulated to react with pumice sedimentary rock and an inorg. flocculant and purifying and drying the reaction product. CONSTITUTION:An inorg. salt such as aluminum sulfate, hydrochloric acid or sulfuric acid, 1 or >=2 kinds among alkalis such as caustic soda are successively added to the fine powder of liparite consisting essentially of vitreous alkaline feldspar and wherein the particle size of >=70% of the powder is regulated to about 30-200mmu and the fine powder of pumice sedimentary rock consisting of vitreous plagioclase and whose particle size is controlled to about 30-200mmu. The reaction product is dried and purified to obtain the clarifier for polluted water. The clarifier is injected into polluted water and agitated and the formed deposit is removed to clarify the polluted water at high speed.

Description

Detailed Description of the Invention (3-1) Summary of the Invention The present invention relates to a treatment agent that rapidly clarifies polluted water, and more specifically, it relates to a treatment agent that rapidly clarifies polluted water, and more specifically, it relates to a treatment agent that clarifies polluted water at high speed. There is no atl! in the (A) component, which is a microscopic extrusive rock fine powder, and/or the CB) component, which is a floating sedimentary rock fine powder whose main components are porous helium and plagioclase. One of the components (C) consisting of a flocculant, hydrochloric acid or sulfuric acid, and alkalis
The present invention relates to a high-speed clarification agent made of inorganic silica aluminum which is dried and purified after adding two or more of them and condensing them through reaction.

(3-2) Industrial fields of application The present invention is applicable to the purification of water, or the treatment of industrial wastewater from food, dyeing, chemicals, pharmaceuticals, starch, plating, etc., and industrial wastewater from hospitals, schools, hotels, kitchens, etc. The present invention relates to a high-speed clarification agent for polluted water that is much more efficient than conventional methods when treating domestic wastewater.

(3-3) Conventional technology Conventionally, in the purification treatment of tap water, industrial wastewater, industrial wastewater, etc., equipment such as sieving tanks, sedimentation tanks, filtration tanks, etc. is installed, and the equipment Clarification is carried out by appropriately performing treatment operations such as adsorption, aggregation, and activation.

For example, in water purification treatment, chemical separation or sterilization of manganese and iron using chlorine, flocculants such as polyaluminum chloride, aluminum sulfate, iron chloride, etc.
Treatment is carried out by appropriately combining physical and chemical treatments using gravity, such as precipitation using coagulation aids such as slaked lime and soda ash, and biological treatments using sludge and active bacteria. However, all of these conventional treatment methods for treating polluted water require large-scale treatment equipment, requiring large equipment costs and installation space, and have the disadvantage that treatment requires considerable effort. was there.

(3-0 Purpose of the Invention The present invention improves the above-mentioned drawbacks of the conventional treatment methods for clarifying polluted water, and clears polluted water easily and in an extremely short time without requiring large-scale processing equipment. The purpose of this project is to provide a treatment method for water treatment, and also to provide a simple method for securing emergency water in times of disaster.

(3-5) Structure and function of the invention Inorganic flocculants have been used for the treatment of polluted water for quite some time, but with the development of industry,
Basic aluminum chloride was discovered in the United Kingdom and the United States in the 1980s, and an improved product was invented in Japan (Special Publication No. 47-2140).
1) Widely used.

There are also activated silica flocculants made by adding hydrochloric acid and aluminum sulfate to water glass.

Their characteristics lie in the separation of contaminants through hydrolysis and ion adsorption, floc cross-linking, and coagulation.

The inventor of the present invention has conducted application research for many years in order to improve the effectiveness of conventional inorganic flocculants from a completely new field.
In the earlier application (Patent Application No. fi5078 of 1982),
We have proposed a high-speed clarification treatment method in which the above-mentioned (A) component CB) component (C) component is injected into polluted water, and each component reacts with each other in the water to improve the coagulation and sedimentation effect. (hereinafter referred to as rsAcJ), as a result of repeated application research, an even more outstanding treatment agent was developed. In other words, the present invention was achieved by successfully producing a novel treatment agent by reacting quartzite, alkali feldspar, and plagioclase with an acidic substance.

That is, the helicoid is glassy and soda-bearing orthoclase ((
The components are Ha, K)20Al2036SiO;+). Alkali feldspar is potassium feldspar containing potassium (KA Is).
130s) and soda-containing soda feldspar (NaAIS)
i30a) is a mixed component. Plagioclase is also called soda lime, and contains ff feldspar (NaA
ISi302) and lime-bearing anorthite (CaA12SiO
s) is a mixed component. These Heriga, R ripple rock fine powder J ((A) component) whose main component is alkali feldspar, and Y floating rock sedimentary rock whose grain size is adjusted to 7A, whose main component is plagioclase. When one or more of the inorganic salts such as aluminum sulfate, hydrochloric acid, sulfuric acid, alkalis such as caustic soda (component (C)) are added to fine powder J (component (B)), or two or more of them are added sequentially , alkali feldspar, and plagioclase are subjected to the action of acid, and a certain reaction occurs in r-rhyolite, etc. fine powder J and r-floating sedimentary rock fine powder 1, which are mainly composed of them. This reaction is initially a normal chemical reaction, but then it is thought that a polycondensation reaction of the reaction products occurs. Further, this series of reactions requires a certain amount of time to complete, but if the reaction product is dried and purified during the reaction, the reaction can be stopped midway and a stable fine powder substance can be obtained.

As a result of various tests, this substance was found to be an extremely effective treatment agent for polluted water. That is, by adding this treatment agent to polluted water and stirring it, an even better treatment effect than the above-mentioned rsAcJ method can be obtained. The processing agent according to the present invention is hereinafter referred to as rsAcsJ,
The processing method will be referred to as the rSAC5J method.

Next, each component of this rsAcsJ will be explained in detail.

(A) Component "Rhyolite, etc. Fine Powder J: As mentioned above, rhyolite is a type of extrusive rock, and refers to a clastic substance whose main components are alkali feldspar and plagioclase. is a general name for orthoclase, microcline, and plagioclase.Also, rhyolite, etc. J refers to rhyolite, rosinite, lithoidite, perlite, olivine, floating rock, and lamprophyre. 1.It is an extruded rock such as Sanuki Rock.IR, gristite is a metal deposit of gold, silver, copper, etc. During the crushing and smelting process, particles in the above particle size range are produced as unnecessary products, so the cost is extremely high. It has the advantage of being cheap.

CB) Component r Floating sedimentary rock fine powder J: Floating sedimentary rock refers to sedimentary rock whose main components are plagioclase, plagioclase is also called soda lime feldspar, pi feldspar,
It is a generic name for perovskite, neutral feldspar, multi-order feldspar, subanorthite, and anorthite. Also, floating rock sedimentary rock J is floating rock tuff,
It is a porous sedimentary rock such as rhyolitic tuff, tuffite floe, and sand. In addition, when processing floating stone tuff to produce plant growth beds or polishing sand, particles in the above particle size range are produced as substandard products and are extremely low in cost, similar to the case of rhyolite.

Component (C) Inorganic salts, hydrochloric acid, sulfuric acid, caustic soda, and other alkalis have the effect of creating a processing agent by reacting with the above (A) and (B) r&.

Inorganic salt substances that are inexpensive and harmless include aluminum sulfate, polyaluminum chloride, ferrous sulfate, ferric chloride, ferric sulfate, and chlorinated iron chloride. In addition, some inorganic salt substances used as flocculants for water supply operations are regulated by JISK-1475. Examples of alkalis include caustic soda, calcium hydroxide, and soda carbonate. one of these substances
is added to the above (A) and (B) components, or two or more are added sequentially (
A) Add to component (B).

Using each component explained above, add rsAcsJ produced by the method described above to polluted water (depending on the properties of the polluted water, add an appropriate polymer flocculant and m2h agent, If the pH is adjusted and stirred, the rate of floc formation and sedimentation will be much higher than in the conventional method, and the level of water quality will be much better.

For example, when treating polluted river water with a turbidity of lOo to 17°, using rsAcsj and stirring it upside down using the specified cylinder test method, the amount of water required to reduce the total amount of treated water to a turbidity of 2° is The time is about 175 to 111 times compared to the conventional method.
5 in a short time, and the water quality has also improved significantly. Furthermore, the rsAcsJ method of the present invention exhibits significantly superior characteristics in terms of lower turbidity and improved water quality than the rsAcsJ method of the prior application.

This fact was completely unexpected even by those skilled in the art, and was something that no one had been able to accomplish in the past.

What is the mechanism of action for this kind of high-speed clarification of polluted water?

Although it is not clear, we can speculate as follows. That is, the main component of components (A) and (B) is P
A-grade alkali feldspar and plagioclase interact with the acidic substance contained in component (C), producing a sol of a certain type of polycondensed silicic acid in an anionic form and a polycondensate of aluminum sulfate or aluminum chloride, and both of them. It seems that they share the characteristics of negative and positive charges. In addition, the negative charge of polycondensed silicic acid promotes the adsorption of metals in polluted water, sedimentation, and cross-linking of flocs, and further reduces the size of flocs, and the positive charge of aluminum sulfate polycondensate acts as a negative hydrophobic colloid in polluted water. It is thought that the floc agglomeration effect is performed.

Furthermore, it is assumed that the porous floating rock structure of the treatment agent (B) has the effect of strongly adsorbing impurities dissolved in water. It is thought that clarification has been achieved.

When the flocculated precipitate actually obtained by the rsAcsJ method is examined under a microscope, the fine powder generated by the reaction between the treatment agents (A), (B), and (C) becomes the core, and the pollutant floc aggregates are formed in the outer wall. It can be seen that they are reduced and combined. The size of the flocs is around 2.0 mm and the crosslinking is dense, r
The effect of sAcsJ is often observed. On the other hand, when the conventional method is used, the size of the flocs is about 4 to 7.
In mnn, it is observed that the entanglement between aluminum chloride pyramids, agglomeration, and cross-linking of flocs are also coarse.

In the conventional method, fine aluminum aggregates of about 20 to 1,000 mp containing pollutants remain suspended in water for a long time without settling or floating due to interference from oxidized organic matter.
sAcsJ suppresses the levitation of all these micro-assemblies,
Separation and sedimentation from trees is often observed.

This treatment method of adding rs A CSJ to clarify water is contrary to conventional treatment methods in terms of treatment time. That is, it is natural that if only forced settling is caused by the addition of rsAcsJ, the quality of the water will deteriorate. However, the rS A according to the present invention as described above
In the CSJ treatment method, as shown in the water quality tests (Tables 3 and 5) of the implementation data described below, rs
It is assumed that the characteristics of ACSJ make a large contribution to the absorption and adsorption of not only hydrophobic colloids but also impurities such as metals, and promote the reduction of turbidity in terms of water quality.

Fine powder of components (A) and (B) outside the particle size adjustment range that reacted with component (C) (for example, 4 mg-10 mp) has a small floc formation and crosslinking effect, and is also hindered by oxidized organic matter, etc., and does not float in water. Coarse particles of components (A) and (B) that have reacted with component (C) (200 mp or more - L) tend to have a physical color difference, and therefore the effect of aggregation and adsorption of pollutants is reduced.

From these observations, it is clear that the particles of components (A) and (B) other than those whose particle sizes have been adjusted deteriorate the functions of pollutant adsorption, flocculation, crosslinking, and floc settling, which are the characteristics of a flocculant.

Further, rsAcsJ is used in a dry state. “5AC3J
Unless there is melting and solidification due to moisture, etc.

Long-term 1E is stable.

The water targeted by the high-speed clarification treatment method according to the present invention is tap water, industrial wastewater, industrial wastewater, etc.
) CB) Fine lead grain size ± 30 to io for general dirty and drought water
'omg is preferable, and 30 to 20 for highly viscous polluted water.
Approximately 0mp (in special cases, particles with even larger particle sizes) are suitable. The composition of components (A), (B), and (C) in rsAcsJ is generally l : l : l ((
C) When a flocculant specified in J I5K-1475 is used as a component, unless otherwise specified below, (C) I&
I'm using this for now. ) However, this ratio cannot be generalized because it varies depending on the various types of polluted water as described below or due to changes in the degree of reaction in the manufacturing process.

The amount of rsAcsJ added depends on the properties of the water to be treated, such as turbidity, size of suspended particles, pH 1 charge, external treatment turbidity such as types of components, mechanism of treatment equipment, presence or absence of treatment additives, etc. I can't tell you.

However, in general, for fine particles @ turbid liquid, f
sA CSJ is approximately 10 to 10,000 ppm, and more specifically, when the concentration of suspended particles is large, similar to that of sewage sludge, 5AcS1 is approximately 1
It is used in the range of 00 to 10,000 ppm.

In the case of relatively low turbidity raw water such as groundwater and river water, "5AC3J
is used in the range of 10-1,000 ppm (7).

A notable use of the present invention is for emergency water use during disasters. It is a well-established theory that water is the most inconvenient thing in the event of a disaster such as an earthquake, but in the event of a disaster, bath water, pond water, accumulated water, etc. can be treated with rSAC31 and then treated with sodium hypochlorite. Easy drinking water can be obtained as demonstrated by the wood quality test (Tables 3 and 5) described below.

(3-8) Examples Examples of high-speed clarification of river water, pond water, and industrial wastewater will be described below in order to specifically understand the effects of the present invention, but these are for illustrative purposes only. Therefore, it goes without saying that the present invention is not limited to this embodiment and can be effectively implemented in various other water treatments.

[Example 1] (Table 1) Surface water downstream of Tsurumi, Kanagawa Prefecture (turbidity 12.5°, pH 7
, 4) was sampled and tested using the cylinder test method.

Cylinder test method: Collect 250 m of sample water into a 250 mμ graduated cylinder, inject rsAcsj into the log, and use treatment agents (A), (B), and (C) for comparison amounts of rsAcJ.
Injected into raw water, rapidly overturned for 2 minutes, then slowly overturned e! 46 minutes and Shizuka 1ii1. , I trained 30 minutes later. In this test, the amount of treatment agent added was varied and the floc formation time, size, amount of floc formation, and total turbidity (sampled at equal intervals from the top, middle, and bottom of the liquid) were measured. The results are shown in Table 1. In Table 0, rsAcsJ is the method according to the present invention, in which each component (A), (B), and (C) is reacted at a weight ratio of 1:1:1. (This manufacturing method is the same in the following examples.), and rsAcj
This method was used for comparison purposes, using a processing agent (A).
) CB) (C) is injected into raw water to clarify it, and the mixing ratio, ingredients, weight, etc. of treatment agents (A), (B), and (C) are the same as those of rsAC3J. be. Further, as the treatment agent (C), a flocculant for water supply (JISK-1475 standard product) was used.

Table 1: Addition amount test results Water temperature: 22°C (the amount of flocs produced is the sedimentation volume tIi amount % of the remaining liquid) From the results in Table 1, it is clear that under these conditions, the optimal amount is obtained in terms of reducing the floc residual liquid turbidity. The amount added is 100 to 2 of rSAC3J.
It is recognized that the amount is about 0.00 ppm. The fact that the treatment method related to fsAcsJ increases the size and amount of flocs produced and lowers the turbidity under the same conditions as compared to the treatment method rsAcJ of the previous application is due to treatment agents (A), (B), and (C). This shows that the rSAC3j method, in which (A), (B), and (C) are reacted in advance, is far superior to the rSACl treatment method in which the components are reacted and agglomerated in water.

[Example 2] (Tables 2 and 3) The raw water of Example 1 was used, the test method was the same as in Example 1, the amount of treatment agent used was constant, and (A) component 1100p.
p, (B) component 1100pp, (C) component 1100pp
, In the following examples, this is used in all cases except where specified. ).

rsAcsJ,! : Prior application (7) I S A CJ
Oh! : (/ In comparison with a conventional product (using only the component (C)), the temporal stability (Table 2) and water quality (Table 3) of the treated water were measured.

Table 2 Turbidity test results over time Water temperature = 24℃ Turbidity 2 Liquid turbidity Table 3 Water quality test results Raw water turbidity 12.4° pH 7,4 Filtered with NoSA cancer paper As is clear from Table 2, rsAcsJ The results showed that the turbidity decreased faster than the conventional comparative coagulant and the high-speed treatment method of rSACJ of the prior application, and as shown in Table 3, the water quality was significantly cleared in terms of COD, TOC, etc. ing.

[Example 3] (Tables 4 and 5) In midsummer, when the occurrence of reducing pollutants is highest in the natural pond water in the school, Ikegi, Chidorigafuchi, Chiyoda-ku, Tokyo (turbidity 48°, p
H8, 8), Yokohama City Sankeien Ikemizu (7F 3 degrees 27.5 degrees p
H8,7) was collected and tested using the same criteria as in Example 2. This test was conducted to determine whether pond water can be used as emergency frK#4 water.

The consumption of dissolved oxygen, which is an important indicator of wood quality, is caused by the amount of reducing pollutants in the water. Therefore, in this test, a COD test was also conducted in addition to the turbidity test in order to see the effect of the high-speed fining treatment according to the present invention on reducing pollutants, which are the most problematic in wood.

First, in the first test, the turbidity of the liquid to be treated was measured over time, and the results are shown in Table 4.

As shown in the table, rsAcsJ of the present invention is similar to the rsAcsJ of the earlier application.
It is clear that the clarification property is faster in terms of turbidity reduction than that of J, and exhibits excellent properties as intended by the present invention.

Furthermore, in the second test, a test was conducted using the first raw wood under the same conditions as the first test, including the test method, treatment agent, and water temperature. The wood quality was measured.

That is, after 2130 minutes, the liquid was filtered with NoSA paper, and rsAcsJ related to unreleased 1!1 and rsAC 1m ahead were filtered.
The COD, /fJ degree, and pH of the ejected liquid and raw water were measured.

The results are shown in Table 5.

Table 4 Time-lapse turbidity test Water temperature 21"C Turbidity of leftover liquid Table 5 con Wood test Water temperature 21" - As shown in the table, COD treated by rS A CSJ was extremely reduced compared to rsAcj, and as shown in Table 5. Despite the sudden increase in turbidity, the water quality has improved significantly.

Moreover, in rsAcsJ, COD is reduced to 1/1G of raw water. Furthermore, although it is extremely difficult to reduce the COD value of raw water with a low COD, it is surprising that the COD can be reduced to 1.8 with a simple operation such as the present invention.

In addition, the drinking water quality standards of the Ministry of Health and Welfare for potassium permanganate consumption f410mg/1 or less is 2.5 ppm or less when converted to COD value, but the pond water after treatment in this test was within the drinking water quality standards of the Ministry of Health and Welfare. , and passed the test for organic substances.

[Example 4] (Tables 6 and 7) Well water (sJ
(turbidity 2.4°, pH 7.12) Water used during the oyobi manufacturing process (turbidity 180°, pH 8.7) was sampled and tested. This is to confirm whether rSAC31 can be used to remove iron contained in raw water, which reduces the quality of the product and requires desalination by maintaining the temperature at 80°C during the manufacturing process. It is.

(1) rsAcsj and rsAc with the same distribution ratio as well water iron removal test Example 1
2 each of J and conventional product (only component (C))
The same treatment method as in Example 1 was carried out using 00ppPm, and after 30 minutes of standing, the iron removal effect was measured (
As shown in Table 6), the removal efficiency of rSAC3J is further improved than that of conventional inorganic flocculants.

(2) 111-minute removal test Regarding salt removal during the manufacturing process, refer to the previous section (1).
) in the same manner as rsAcsJ and conventional product (C).
The salt removal effect was measured using 900 pPm of each component (Table 7).

Table 6: Well water iron removal test Water temperature: 18°C, 30 minutes after standing; Turbidity: Total liquid temperature: Table 7: Salt removal test: Treated water temperature: 80°C, 10 minutes after standing: Turbidity: Residual liquid As shown in the table above, rsAcsJ shows an excellent salt removal effect and fully meets the needs of users.

As is clear from the results below, conventional inorganic flocculants have mainly been used to coagulate negative hydrophobic colloids, but rsAcsJ not only coagulates conventional negative hydrophobic colloids but also It also exhibits excellent properties in adsorption and precipitation of heavy metals.

As shown in the above examples, according to the water treatment method according to the present invention, it is possible to quickly clarify polluted water,
Treatment agent (A) can also be used for raw water other than those shown in this example.
By suitably changing the blending amounts of (B) and (C), very good results can be obtained as in the above examples.

The processing agent (A) used in the examples all had a particle size of 30.
The particle size has been adjusted so that it contains 70% or more of ~200 gm, but this particle size adjustment range is a rough guideline, and the present invention can be effectively implemented even if the particle size is slightly deviated from this range. Of course you can. Treatment agent C
The particle size range of 30 to 200 ppm in B) is also approximately 100 ppm as in the case of processing agent (A), and the present invention can be effectively carried out even if the particle size range is slightly deviated.

The same can be said about the injection amount of the processing agent rsAcsJ. In the present invention, the injection amount is lO~10
, 000 p p m, but this is also a rough guideline, and depending on the nature of the raw water, unreleased 1!11 can be effectively carried out even if it deviates somewhat from this range.

(3-7) Effects of "Development I" The present invention is produced by injecting purified inorganic flocculant into polluted water and stirring it by reacting floating rock sedimentary rock such as sulfurite whose particle size has been adjusted as appropriate and an inorganic flocculant. By removing the precipitates, polluted water can be clarified at high speed, and has the following excellent effects.

■ Compared to various flocculants used conventionally, flocculation and sedimentation time is significantly shortened. According to the example of river water mentioned above,
Processing time is 115 to 1/15 that of conventional methods.

■ Despite high-speed clarification, the functions of conventionally used flocculants (removal of organic matter, reduction of turbidity)
This further improves the turbidity and reduces the turbidity significantly.

■ The moisture content of the cake is low and the peelability is excellent.

The cake flocculated and settled by the method of the present invention has a water content as low as 1/2 or less compared to conventional flocculants, and has excellent peelability and dehydration properties, so it can be easily extracted from the lower conduit of the settling tank. In addition, the removed cake can be easily solidified by air drying, so it has the characteristic of being easy to process.

■ This processing agent rsAcsj is inexpensive. That is, the components (A) and (B) are respectively made of fine powder of floating rock such as sulfurite, but when producing polishing sand and plant nurseries using these as raw materials, gold, silver, This is because when producing copper, non-standard products or unnecessary products in the manufacturing process can be easily used by simply sorting the particle size with a sieve.

■ Easily separates and sediments organic matter such as putrefaction from the liquid, and maintains the sedimentation state.

■ When constructing new water treatment equipment, the method related to Final IJ1 can significantly save equipment costs for agitation, flocculation, sedimentation, discharge, etc., as well as site space.

(2) The method according to the present invention can be easily applied to water treatment equipment that is currently in operation, and by using it, the equipment capacity can be increased.

■ In particular, the high water quality and clarity of rSAC3J in the present invention has great utility as a surface wood treatment agent for the treatment of organic matter that has been occurring in tap water sources in recent years, as well as for the pure water treatment required during IC manufacturing. be.

■ This treatment agent has a desalination effect and a removal effect of metals, heavy metals, etc.

[Phase] In short, it improves the performance of water treatment equipment, reduces equipment costs, and makes a major contribution to pollution control.
It also makes it extremely easy to secure emergency water, especially in times of disaster.

Patent applicant Fujio Hotta (1 other person)

Claims (5)

[Claims] (1) Add a predetermined amount of one of the following (C) ingredients to the following (A) ingredient whose particle size has been adjusted as below and/or the following (B) ingredient whose particle size has been adjusted as below. A high-speed clarification treatment agent for polluted water, which is obtained by adding or sequentially adding two or more predetermined amounts of each, reacting, and then drying and purifying the reaction. (A) Component: Rhyolitic extrusive rock with vitreous stone base, alkali feldspar, and plagioclase as main components. Fine particle size adjustment: 70% or more of 30 to 200 mμ (B)
Ingredients: Floating sedimentary rock mainly composed of plagioclase in a vitreous stone base Fine particle size adjustment: 30-200 mμ (C) Component: Inorganic salt substances such as polyaluminum chloride,
Alkalies such as hydrochloric acid or sulfuric acid, caustic soda, calcium hydroxide, soda carbonate, etc. (2) A predetermined amount of the component (C) is added to a mixture of the component (A) whose particle size has been adjusted as described above and the component (B) whose particle size has been adjusted as described above. The agent for high-speed clarification of polluted water according to claim 1, which is obtained by drying and purifying after reacting. (3) After adding a predetermined amount of the component (C) to the component (A) whose particle size has been adjusted as described above and causing the reaction,
The agent for high-speed clarification of polluted water according to claim 1, which is obtained by drying and purifying. (4) After adding a predetermined amount of the component (C) to the component (B) whose particle size has been adjusted as described above and causing the reaction,
The agent for high-speed clarification of polluted water according to claim 1, which is obtained by drying and purifying. (5) The agent for high-speed clarification of contaminated water according to any one of claims 1 to 4, which is granulated for portable use after the drying and purification.