JPH10277541A - Zeolite type water purifying agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To purify drinking water or water of rivers or lakes or marshes by using a water purifying agent produced by a simple production method adding shell fossil particles to zeolite and not requiring high equipment cost and to form suspended particles into large flocs to rapidly sediment the same. SOLUTION: A water purifying agent based on powder zeolite and prepared by adding a powder mixture of shell fossil particles, gypsum dihydrate and soluble anhydrous gypsum to zeolite to mix the same therewith removes a harmful substance contained in water and elutes mineral components into water and forms clusters of water smaller to produce drinking water easy to drink and rapidly separates a contaminant of sewage and adsorbs heavy metals in water and generates no fluctuations of pH and develops excellent water purifying and waste water treatment effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification agent containing zeolite as a main component which purifies drinking water and sewage, and is particularly suitable for removing harmful substances from drinking water and purifying sewage. A novel zeolite-based water purification agent.

[0002]

2. Description of the Related Art Water pollution is increasing due to the concentration of industry, increase of industrial drainage due to large scale, increase of domestic wastewater due to concentration of population in cities, delay of sewerage maintenance, etc., and pollution of raw water for tap water and industrial water. But this is causing a serious situation. Naturally, drinking water must be good for living organisms. The condition is not only that it does not contain harmful substances, but also that it contains a mineral component that is a metal ion and that oxygen and carbon dioxide gas are sufficiently dissolved. Is smaller.

[0003] By drinking such drinking water, the cells of living organisms are brought to life, a healthy body is formed, the youthful skin is maintained, aging is delayed, and dementia is prevented. The metal ions are calcium, calcium ions, silicate ions and the like, and it can be said that drinking water having a high ion concentration is good drinking water. In particular, drinking water with a small cluster activates enzymes of living organisms, activates microorganisms in the intestine, and accelerates metabolism.

As such drinking water, natural spring water or the like has small clusters and contains a large amount of metal ions (minerals) such as calcium. Although it is sold in a container, expensive equipment is required to artificially produce such a large amount of drinking water.

[0005] On the other hand, rivers, lakes and marshes are liable to become sewage due to sludge due to inflow of factory wastewater and domestic wastewater. The sewage of this sewage is mainly composed of anaerobic bacteria, and generates ammonia, methane, hydrogen sulfide, etc., and pollutes the water. These sewage are chemically treated by a sewage treatment and purification device, and are purified using a filter or the like. In particular, in recent years, equipment for advanced sewage treatment and purification equipment has become mandatory for factory waste liquids and the like.

[0006]

However, there is a problem that tap water as conventional drinking water contains harmful chlorine (chlorine) and the like, and it is difficult to say that the drinking water is optimal. In addition, domestic wastewater and pesticides flow into the sea, rivers and lakes, increasing the concentration of phytonutrients in the water, changing the water quality from oligotrophic to eutrophic, and resulting in excessive nutrients such as nitrogen and phosphorus in the water and phytoplankton, etc. The problem is that the fish grows abnormally and becomes red tide and blue water, and when this condition progresses and the blue water rots and decomposes, oxygen is consumed, so the fish die out due to lack of oxygen, and the water becomes stinking. was there.

For such drinking water and sewage, water purification equipment requires enormous and expensive equipment and cannot be installed unless a national or local organization is used. In particular, water purification for the sea, rivers, lakes and marshes is widely used. There was a problem that it was necessary to carry out equipment and maintenance. In any case, sedimentation separation is the mainstream of separation operation in wastewater treatment,
The rapid separation is performed solely by improving the coagulation and sedimentation treatment mechanism, and the sedimentation speed is limited.
It was not considered that the flocculation function itself could be improved and large flocs could be rapidly formed. The present invention has been made in view of the above points, and aims at solving the problems of the conventional example, eliminating the need for expensive equipment costs, and purifying water quality of drinking water, rivers, lakes and marshes. It is an object of the present invention to provide a water purification agent containing zeolite as a main component and a water purification agent that can be easily produced.

[0008]

The water purification agent of the present invention containing zeolite as a main component is composed of powdered zeolite as a main component. A mixture containing a non-crystalline component that dissolves into water glass and a powder mixture of gypsum dihydrate and a soluble anhydrous gypsum are added and mixed to remove dirt and harmful substances contained in water, It is characterized by eluting mineral components and producing smaller water clusters. This water purification agent containing powder zeolite as a main component is particularly suitable for water purification of drinking water sources.

The zeolite-based water purifying agent suitable for purifying sewage according to the present invention is obtained by pulverizing 60 to 80% by weight of powdered zeolite and a harmless porous substance (including fossil shellfish) at 300 ° C.
These substances dried and pulverized at the following temperature
It is characterized by having 30% by weight of a powder of a water-soluble silicon-containing material, 20 to 40% by weight of a powder mixture of gypsum dihydrate and soluble anhydrite, and having the ability to purify sewage.

[0010] In the present invention, the zeolite used as a water purifying agent, when used as a water purifying agent for drinking water,
Since zeolite itself has a low ability to elute mineral components in water and generate smaller clusters of water, the amount of zeolite is preferably larger than that of shell fossil grains, and may be 50% by weight or more.

Zeolites are mainly silicate hydrates of aluminum, sodium and calcium, Na ⁺ (or K
⁺ ) With easily exchangeable ions such as
It is well known that water is replaced by a ²⁺ or Mg ²⁺ to soften water. However, zeolite is well known as an adsorbent for ammonia together with activated carbon (removal of organic substances and color components) as an adsorbent in wastewater treatment. Have been. In the present invention, "zeolite" refers to zeolite, mordenite,
A general term for zeolite-based minerals such as clinoptilite and synthetic zeolite.

In the present invention, the shell fossil mass used as a shell fossil raw material is obtained by mining a shell fossil layer, and this shell fossil layer is composed of marine shells and marine shellfish in the middle of the Neogene period (about 12 million years ago).
In particular, bivalves, snails, etc., and skeletons of marine organisms are densely buried and deposited, and they are formed into particles or strips and solidified by the high temperature caused by high underground pressure, resulting in crustal deformation and land transformation. The ones that appeared on the ground along with were targeted. The main component of shell fossils is calcium carbonate, but also contains various elements such as magnesium oxide (MgO) and ferric oxide (Fe ₂ P ₃ ) as trace elements.

The shell fossils thus produced are porous, unlike shells, have a large surface area and a high adsorption power, and have an adsorption power of 1/5 that of activated carbon of the same volume. Calcium carbonate, which is the main component, easily dissolves in water, and is about ten times as easy as calcite. Further, it shows a larger amount of dissolution in water containing carbon dioxide gas (CO ₂ ). Rainwater and surface water, which are suitable as drinking water, contain a large amount of carbon dioxide, so that the purifying ability of shell fossils for drinking water is further enhanced.

[0014] The water purifying agent for drinking water, when used directly as shell fossils, is unsuitable for drinking because of the unusual smell of silicon if it is excessively dissolved. Elute and remove in advance in the pickling process. Although some calcium is dissolved by the water-immersion process, silicon is dissolved more first and calcium is abundant, so that effective calcium is not lost.

The shell fossil in the purifying agent for drinking water according to the present invention has a porous shell fossil having an appropriately small particle size.
When this is put into drinking water, it absorbs harmful substances such as calcium, dissolves out minerals such as calcium, reacts quickly with organic chlorine compounds, removes harmful substances strongly, and generates smaller water clusters. It is easy to drink and can be used for a long time.

The water purification agent for purifying sewage according to the present invention is obtained by mixing powdered zeolite with finely divided shell fossils, dihydrate gypsum, and soluble anhydrous gypsum. The catalyst, the chelating effect and the coagulation properties work particularly well and quickly, stop the generation of gas, rapidly separate the dirt in the water, adsorb the sludge, coagulate and settle. The settled sludge starts to calcite and precipitate on the bottom of the water due to the action of calcium carbonate. At this time, Ca in the shell fossils undergoes a substitution reaction with Na of sodium silicate in the zeolite, and Na ions increase to form colloids. Adsorption and coagulation of dirt are further enhanced, and gypsum SO 2
₄ ^- to promote sedimentation bonded to the metal ions in the wastewater.
It also absorbs heavy metals such as Cd and Hg in sludge, cutting oil, ink, sulfur dioxide, etc., and the pH of water becomes neutral to about 6.8.

Calcium carbonate adsorbs substances dispersed and dissolved in water and reacts with phosphorus compounds to produce CaCO ₃ + P
Compound + H ₂ O → Ca (PO ₄ ) + CO + O ₃ + H ₂ O
To generate active oxygen, which has a significant bactericidal action on sewage and reduces bacteria in the water. In addition, the amount of phosphorus in the water is reduced, thereby reducing nutrient sources such as daphnia and blue-green algae to prevent the abnormal growth. Due to this coagulation action, it is also effectively used for treating pulp waste liquid, food processing waste liquid, blood and the like.

Zeolites do not exhibit a purifying action by eluting a component effective for water purification into water like the above-mentioned shell fossils and gypsum. However, zeolite cannot be removed by these water-purifying components and cannot be removed in clear water. Adsorbs residual organic substances, color components, malodorous components such as chlorine and ammonia, and has a water softening effect. Therefore, when used in combination with the above two water purification components, a synergistic effect with these water purification effects is obtained. Is exhibited, and the quality of treated water can be further improved, and mineral water with improved quality as drinking water can be provided. Thus, it is a water purification component having performance extremely suitable for recent health-oriented booms.

[0019]

DETAILED DESCRIPTION OF THE INVENTION About 50% by weight of powdered zeolite, 1
After the shell fossil grains crushed into particles of 0 mm or less are washed with water, they are immersed in water for 4 to 18 hours in a water tank and left to elute and remove silicon components. After drying, use a mesh with a stitch of several millimeters.
The shell fossil grains selected to a particle size of ５5 mm were mixed at a ratio of about 50% by weight and used for drinking water purification.

The water purifying agent containing zeolite as a main component thus produced dissolves minerals such as calcium in shell fossil grains, harmful substances such as calcium between shell fossil grains and zeolite, and organic chlorine. The reaction and adsorption with the compound proceed quickly, the removal of metal ions is promoted by the synergistic effect of the binding with the metal ions in the sewage and the exchange of the metal ions by the zeolite, and the deodorization by the shell fossil grains and the zeolite By the synergistic effect of the present invention, it is possible to easily and quickly obtain high-quality mineral water rich in minerals having a good taste.

Next, an embodiment of purifying sewage with a zeolite water purification agent will be described. The powdered zeolite and the shell fossil grains obtained by pulverization by the above-mentioned method were dried by a steam dryer at a temperature of about 300 ° C. or less until the water content became 8% or less, and then pulverized into fine grains of 30 mesh or less. A gypsum mixture in which shell fossil grains, a water-soluble silicon-containing substance, gypsum dihydrate and soluble anhydrous gypsum are mixed in approximately equal amounts, powder zeolite 50% by weight, shell fossil particles 20% by weight, gypsum mixture 30% by weight To obtain a zeolite-based water purification agent for sewage purification.

When this zeolite-based water purification agent is added to sewage generated by sludge, calcium carbonate dissolved from fossil shells reacts with phosphorus compounds in the sewage to reduce phosphorus in the water and generate active oxygen. The low pressure and low temperature shell fossil structure relocates the elements in the sewage to reduce the number of bacteria by the catalyst and chelating effect of the elements, stops the generation of gas, and decomposes and precipitates sludge dirt. it can. Gypsum, soluble anhydrous gypsum and zeolite quickly separate water stains,
At the same time, the shell fossils absorb sludge and coagulate to become an intermediate state of mineralization in water, and calcite by the action of calcium carbonate of the shell fossils and settle to the bottom of the water. In this case, the sludge absorbs heavy metals, cutting oil, ink, sulfur dioxide gas emitted from the chimney at the time of heavy oil combustion, and the pH of the sludge becomes about 6.8.

When the zeolite-based water purification agent is charged into a pond or the like and stirred, oxygen is generated from the fossils in the zeolite-based water purification agent by the above-described chemical reaction, and the upper water temperature and the water bottom of the pond water are generated. The phenomenon of water temperature equalization appears, and the zeolite-based water purification agent rapidly adsorbs and precipitates substances dispersed or dissolved in water regardless of whether they are organic or inorganic. Become. As a result, nutrients in the water are reduced, and the abnormal growth of daphnia and blue water in the pond is suppressed.

Further, calcium carbonate from shell fossils in the zeolite-based water purification agent reacts with a phosphorus compound contained in the sewage to become calcium phosphate (CaPO ₄ ), which drastically reduces phosphorus as a eutrophic source. Further, the zeolite-based water purification agent can remove a phosphorus compound by adsorbing a phosphorus compound which is not combined. Thus, sewage treatment of pulp waste liquid, manure, food processing waste liquid, blood, etc. can be performed by utilizing the aggregating action of the zeolite-based water purification agent, and the treated water becomes neutral and can be used in large quantities. There is no change in pH.

The analysis results of zeolite (manufactured by Taiheiyo Kogyo Co., Ltd.) used for this water purification agent showed that it consisted of the following components. Zeolite component (Pacific Ocean) Silicon dioxide (SiO ₂ ) 69.1% Ferric oxide (Fe ₂ O ₃ ) 0.48% Magnesium oxide (MgO) 0.25% Potassium oxide (K ₂ O) 1.29 % Hydrogen ion (pH) 9.7 aluminum oxide (Al ₂ O ₃ ) 10.8% calcium oxide (CaO) 2.02% sodium oxide (NaO) 2.25% phosphorus pentoxide (P ₂ O ₅ ) 04% base substitution capacity (CEC) 118.2meq / 100g

As described above, the adsorption power of the zeolite-based water purification agent is extremely strong, and can exert a great power in the adsorption of cadmium, mercury and the like, which are pollutants. According to the experimental results, the amount of cadmium adsorbed was 2.3 mg.
~ 27.0mg / g, mercury adsorption amount is 20.0mg ~ 2
A value of 4.0 mg / g was measured. In this case, it aggregates as an insoluble substance, not just ion exchange.

As described above, the zeolite-based water purification agent exerts a strong purification effect on any wastewater and can treat wastewater. The particle size of the zeolite-based water purification agent for any use in the present invention may be appropriately selected according to the use, the period of use, and the like. If the particle size is mixed with an appropriate size range, when it is put in water, water will first penetrate into the porous part of the fine shell fossil grains and react quickly,
Since the porous part of the large shell fossil grains reacts slowly, the period during which the zeolite-based water purification agent can be used is prolonged. As described above, the zeolite used in the present invention has a dirt-separating action derived from an ion-exchange ability or an adsorbing action, and has a synergistic effect with shell fossils.

Further, the zeolite-based water purification agent for sewage treatment described in detail in the second embodiment has the same adsorption, coagulation,
Due to the sedimentation action, it can be used as a powerful dewatering agent for muddy water mixed with earth and sand, for example, muddy water of red soil, sludge containing a lot of water, sediment flow on slopes of retaining wall construction, and drainage of tunnel construction. That is, when a muddy water is stirred by mixing a fossil water purification agent (a dehydrating agent) for sewage treatment with such muddy water, water can be quickly separated and the soil can be hardened. And stable use of earth and sand at the site can be achieved, and environmental pollution of the ocean and the like due to earth and sand outflow can be prevented. It is to be noted that although it takes a long time even if the muddy water is not stirred while the dehydrating agent is sprayed, the dehydration proceeds, and the separation of water, sedimentation of sediment, and dehydration are performed.

[0029]

As described above, the zeolite-based water purifying agent according to the present invention instantly removes calcium contained in tap water due to the adsorption characteristics of zeolite and shell fossils, and removes human body contained in water. Adsorbs harmful heavy metals. In addition, when water is oxidized, replace it with alkaline water and obtain various kinds of minerals such as calcium contained in shell fossils eluted in the water to obtain delicious healthy drinking water containing a lot of pure minerals There is an effect that can be. Further, the drinking water thus produced has a small water cluster and is easy to drink, so that delicious food can be obtained even when used for rice or coffee.

In the sewage purification treatment, as described above, the zeolite-based water purification agent is a porous substance and has the property of decomposing, adsorbing, and coagulating harmful substances. It quickly separates and cleans, and because it does not adsorb and dissolve heavy metals in water, it can be reused without becoming industrial waste. There is an effect that there is no fluctuation. Moreover, the manufacturing method is simple,
It has excellent features such as being inexpensive to manufacture and easy and easy to use.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/68 510 C02F 1/68 510Z 520 520N 520D 520M 530 530A 540 540A 540Z

Claims (8)

[Claims] 1. Sewage and organic substances contained in water, comprising powder zeolite as a main component, and adding and mixing all the finely divided porous substances and a powder mixture of gypsum dihydrate and soluble anhydrite. A zeolite-based water purification agent characterized in that water is removed in a small state by removing water and elute mineral components into water. 2. The zeolite-based water purification agent according to claim 1, wherein the porous substance is harmless to humans and animals, and one of the substances is shell fossils. 3. The pulverized zeolite and the porous material are pulverized and dried at a temperature of 300 ° C. or less.
0 to 80% by weight, obtained by dissolving gypsum and soluble anhydrite in water, and mixing these dissolved materials with 20 to 40% by weight of a powder mixture of an amorphous substance. A zeolite-based water purification agent characterized by the following. 4. The zeolite-based water purification agent according to claim 3, wherein the porous substance is harmless to humans and animals, and one of the substances is shell fossils. 5. The zeolite-based water purifying agent according to claim 3, wherein the amorphous substance is water glass. 6. The zeolite-based water purification agent according to claim 1, wherein the zeolite-based water purification agent has a purifying power for sewage. 7. A zeolite-based water purification agent comprising a mixture of a coagulation nucleus and a carrier, and obtained by taking suspended particles and then sedimenting by rapid coagulation. 8. The zeolite-based water purification agent according to claim 7, wherein the zeolite-based water-purification agent is a sedimentation agent by rapid coagulation.