JP2010012411A - Water quality improving treatment agent and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water quality improving technology which is environmentally friendly and does not require too much labor and time when improving the water quality in a lake, a river, a dam, or the like. <P>SOLUTION: A powder of a natural porous ore having a permanent charge, a natural ore serving as an ion substitution material, an ion substitution auxiliary material, a binding reinforcement for binding ore materials, a porous pore diameter-expanding material for expanding the pore diameter of natural porous ores, and a coagulation auxiliary material are mixed, and the mixture is subjected to ion substitution via two or more heating processes at different temperatures to generate a water quality improving treatment agent 13 whose surface is charged. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to water quality improvement, and more particularly, to a water quality improvement treatment agent for the purpose of improving water quality of rivers, lakes, dams, and the like, and a method for producing the same.

  In recent years, a great number of technologies for water quality improvement and water purification have been developed. For example, biological technologies using microorganisms are widely used simultaneously with physical and chemical technologies in various wastewater treatment plants. . However, such water purification technology is applied to wastewater containing heavy metals at a high concentration and is treated according to a predetermined drainage standard, so that it is difficult to use it as general water.

  Many water purification technologies developed in the country often remain at the laboratory level or pilot test level. In addition, there are many problems to easily use in the outdoor field where the scale of application is large, and even if the economic efficiency is out of the question, it is not in full use.

  Especially in rivers and dams with complex physicochemical variables, water quality deteriorates due to long-term flooding, and in recent years it has become an important issue to ensure safe drinking water and domestic water due to rapidly increasing pollutants. . However, most of the water treatment technologies that are currently being developed only perform a certain amount of treatment on the water that has flowed into the treatment facility, purifying the quality of the raw water itself at the dam or lake site. is not.

  Water treatment of rivers, lakes and dams, unlike industrial facilities and various types of wastewater, is very difficult to implement directly on lakes etc. unless the technology can guarantee the safety of natural ecosystems. In fact, there are few examples of such processing even outside.

  In response to the above request, water quality treatment techniques such as lake water, river water, clean water and irrigation water have been disclosed (for example, see Patent Document 1). This water treatment technology sprays effervescent zeolite into lake water, river water, etc., and substitutes ultrafine pores of zeolite in softened lake water, river water, etc., generates fine bubbles, suspended matter Suspended substances are levitated by using an expandable zeolite obtained by adhering and floating.

Zeolite has a function of substituting conventionally known cations in water with sodium ions, thereby exhibiting adsorption performance of ammonia and other cations, and also adsorbs calcium and magnesium in water. As a result, the foaming property is improved, and colloidal gas is generated when water and fine pores are replaced in the porous portion, and the generated gas from the active oxidant overlaps with it, and more colloidal air is generated. The colloidal air adheres to the suspended matter containing the organic substance and floats when the apparent specific gravity is smaller than that of water, and the suspended separation effect of the suspended substance is obtained.
JP 2001-198568 A

  According to the water quality treatment technique described in Patent Document 1 described above, since it is not deposited on the bottom of the water as in the prior art, a large collection means such as a sludge recovery ship is not required. It is necessary to collect the suspended matter. In the case of large areas such as lakes, rivers, and dams, the time and effort required to collect suspended suspended matter is tremendous.

  An object of the present invention is to provide a water quality improving treatment agent that is friendly to the surrounding environment and does not require excessive labor for use in improving the water quality of lakes, rivers, dams and the like.

  In order to solve the above problems, the present invention proposes a natural porous ore powder having a permanent charge, a natural ore of an ion-substituting material, an ion-substituting auxiliary material, and a bond reinforcing material that combines the ore materials. And a porous pore size expanding material that expands the pore size of the natural porous ore, and an agglomeration auxiliary material, and are produced through two or more heating steps at different temperatures, and the surface-charged water quality improving treatment It is an agent.

  The natural porous ore powder with permanent charge is heated with a temperature difference, ion substitution and bond strengthening are performed, and the surface is a water quality improving treatment agent charged. Suspended turbidity, metals, etc. can be adsorbed, and can further be aggregated and settled. And since a pore diameter becomes large with a porous pore diameter expansion material, bacteria can utilize a porosity. In other words, after the coagulation sedimentation, the porous material becomes the residence of bacteria in the environment and is decomposed, so that it is prevented from becoming sludge at the bottom of the water, leading to improvement of the bottom quality of lakes and the like.

  The natural porous ore has fine pores in the crystal, and includes clinoptilolite, mordenite, heulandite, stellarite, erionite, mica. (Illite), vermiculite, bentonite, montmorillonite, muscovite (muscovite), chlorite (chlorite), and sepiolite (Sepiolite). The above linoptilolite, mordenite, pyroxenite, stellarite, and erionite are collectively referred to as “zeolite” as appropriate.

  The natural ore of the ion-substitution material is gibbsite which is a hydroxide of aluminum, the ion-substitution auxiliary material is opal, the bond strengthening material is kaolin, and the porous pore size-enlarging material is It is preferably pearlite (perlite), and the agglomeration auxiliary material is preferably dolomite (dolomite).

  The surface can be charged positively by performing ion substitution with the ion-substituting material in the acidic region, or charged negatively by performing in the alkaline region.

Among natural porous ores, zeolite, for example, has a permanent charge because the Si ^4+, which is the center of its tetrahedral structure, is replaced with Al ³⁺ by pressure or the like, so that it is structurally negative (-) charge (permanent charge). Is by having Then, the aluminum ore gibbsite as an ion replacement material is mixed, and further, an ion replacement auxiliary material, a bond reinforcing material for bonding each ore material, a porous pore size expanding material for expanding the pore size of the natural porous ore, and an aggregation aid Mix the ingredients. By heating with a temperature difference, ion substitution and bond strengthening of each ore material are achieved, and a water quality improvement treatment agent that is generated by pulverizing into nanopowder and having a charged surface is obtained.

By performing ion substitution in the acidic region, hydrogen ions are added to form a state of Al (OH ₂ ⁺ ) ₃ and the surface has a positively charged water quality improving agent. Conversely, in the alkaline region to which alkali is added, AlO is added. ^- the quality improvement treatment agent bearing a negative charge becomes. A water quality improvement treatment agent with a positive charge on the surface adsorbs negative charge turbidity, etc. by spraying it on lakes, etc., agglomerates and settles, and when the surface has a negative charge, it is a positive metal. Ions and the like can be adsorbed and coagulated and settled.

  Further, the present invention further proposes a method for producing a surface quality-improved water quality improving agent using natural ore as a raw material, and comprising a natural porous ore powder having a permanent charge and a natural ion-replacement material. An ore, an ion-substitution auxiliary material, a bond strengthening material that binds each ore material, a porous pore size expanding material that expands the pore size of the natural porous ore, and an agglomeration auxiliary material are mixed and heat-treated to produce ions. A first heating step for performing the substitution, a second heating step for further strengthening the bond between the materials by further heat treatment at a temperature higher than that of the first heating step, and a pulverization treatment after the second heating step. And a pulverization treatment step.

  In the above production method, the natural porous ore is made of clinoptilolite, mordenite, helenite, stellarite, erionite, illite, vermiculite. (Vermiculite), bentonite, montmorillonite, muscovite (muscovite), chlorite (chlorite), and sepiolite (Sepiolite).

  Further, the natural ore of the ion substitution material is gibbsite which is an aluminum hydroxide, the ion substitution auxiliary material is opal, the bond strengthening material is kaolin, and the porous pore size expanding material is It is preferably pearlite (perlite), and the agglomeration auxiliary material is preferably dolomite (dolomite).

  Moreover, the surface can be charged positively by performing ion substitution with the ion-substituting material in an acidic region, or negatively charged by performing in an alkaline region.

  ADVANTAGE OF THE INVENTION According to this invention, when improving water quality, such as a lake, a river, a dam, etc., it can provide the water quality improvement processing agent which is kind to the surrounding environment, and does not require an excessive effort for the use, and its manufacturing method.

  Natural porous ore powder is ion-exchanged and bond strengthened, and the surface is charged with water quality improving treatment agent, so it can adsorb turbidity, metals, etc. charged in water, and further agglomerate. Can be allowed to settle. Since bacteria can use the porous structure, it is prevented from becoming sludge at the bottom of the water by the decomposition treatment, which leads to improvement of bottom sediments such as lakes.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a process diagram of an embodiment of a method for producing a water quality improving treatment agent according to the present invention, FIG. 2 is a conceptual diagram showing a procedure for ion-replacement of natural porous ore, and (a) is a diagram of aluminum hydroxide. (B) is a conceptual diagram showing permanent charge of natural porous ore, (c) is a conceptual diagram of ion-substituted natural porous ore particles, and FIG. 3 is a concept showing the state in muddy water. (A) is a conceptual diagram showing turbidity in a negatively charged state, (b) is a conceptual diagram of ion-substituted natural porous ore powder particles and turbidity adsorbed on the periphery thereof, FIG. 4 is a conceptual diagram showing a state where the ion-substituted natural porous ore powder particles and turbidity adsorbed on the surrounding particles are aggregated.

  The outline of the water quality improving treatment agent and the method for producing the same according to the present invention will be described with reference to the production process diagram of FIG.

  Natural porous ore powder having permanent charge, natural ore of ion-substitution material, ion-substitution auxiliary material, bond strengthening material that binds each ore material, and porous pore size that enlarges the pore size of the natural porous ore The process starts with a mixing step of mixing the expansion material and the coagulation auxiliary material (S101).

  Examples of the natural porous ore include clinoptilolite, mordenite, heliteite, stellarite, erionite, illite, vermiculite, and vermiculite. It is composed of at least one of bentonite, montmorillonite, muscovite (muscovite), chlorite (chlorite), sepiolite (Sepilite). It is preferable to add.

  In addition, the natural ore of the ion replacement material is Gibbsite, which is an aluminum hydroxide, the ion replacement auxiliary material is opal, the bond reinforcement material is kaolin, and the porous pore size expansion material is pearlite (perlite). Auxiliary material is dolomite (dolomite), respectively.

  Next, after the above-described mixing step (S101), the first heating step of heating at the primary temperature (375 ° C. to 600 ° C.) is performed (S102). In this first heating step, the aluminum hydroxide contained in the gibbsite is dissolved in the natural porous ore and ion-substituted. The ion substitution auxiliary material opal has a role of generating negative ions and assisting ion substitution.

When ion substitution is carried out in the acidic region, hydrogen ions are added to form an Al (OH ₂ ⁺ ) ₃ state, and the surface becomes a positively charged water quality improving treatment agent. Conversely, in the alkaline region where alkali is added, AlO ⁻ It becomes a water quality improving treatment agent having a negative charge. Details will be described later.

  Next, the heating temperature is set to a secondary temperature (1000 ° C. to 1470 ° C.) (S103). By heating at the secondary temperature, the clay mineral is vitrified and strengthens the bond and the structure. The kaolin (clay mineral, homogeneous kaolinite "kaolinite" can be used) is a secondary material similar to the six types of clay minerals vermiculite, bentonite, montmorillonite, muscovite, chlorite and sepiolite. When it plasticizes at temperature, it vitrifies and strengthens the bond of the ion substitution.

  Further, when heated at the secondary temperature, the porous pore size-enlarging material pearlite (perlite) foams and plays the role of expanding the pore size of the porous structure. The coagulation auxiliary material dolomite (dolomite) is a material that increases the coagulation effect with turbidity and the like when sprayed in water as a water quality improvement treatment agent.

  Next, after the heat treatment at the secondary temperature, it is pulverized into a nanopowder state (S104). This is because plasticity occurs at the secondary temperature, so that a phenomenon in which some of the pores are bonded is observed, so that ion substitution is enhanced by pulverization.

  In addition, you may substitute by a cation or an anion according to the application object etc. of a water quality improvement processing agent, or the objective (S105, S106). For example, when the water quality improvement treatment agent is positively charged and the target to be adsorbed and aggregated is also positively charged, ion replacement is performed again to negatively charge the water quality improvement treatment agent.

  When the produced water quality improving treatment agent (S107) is sprayed on a lake or the like, it adsorbs, aggregates and settles charged turbidity. Since the expanded porous material can be used by bacteria, the porous material becomes a residence of bacteria in the environment after aggregation and sedimentation, and the suspended matter is decomposed to prevent the bottom of the water from becoming sludge.

  Next, a process of adsorbing and agglomerating turbidity after the natural porous ore is ion-substituted will be described with reference to a conceptual diagram.

As shown in FIG. 2A, the aluminum hydroxide 11 “Al (OH) ₃ ” contained in the gibbsite of the ion-substituting material is placed in an acidic region so that hydrogen ions H + are added and Al (OH ₂ ⁺ ) Easily in the state of ₃ . In FIG. 2A, three OH ₂ ⁺ are arranged around Al.
Note that in this embodiment there as an ion substitution with acidic, since alkaline region with the addition of alkali to the contrary would bind H + is a hydroxyl group OH @ -, AlO ^- a state in which the negatively charged becomes .

FIG. 2B is a conceptual diagram showing a state in which the natural porous ore particles (powder) 12 have a negative charge and are permanently charged. Si ^{4+ in} the composition of the natural porous ore may be replaced by Al ³⁺ or Fe ³⁺ , and at this time, the natural porous ore is structurally charged with a “minus (−)” charge (“ Called "Permanent Charge").

  As shown in FIG. 2C, the aluminum hydroxide 11 of FIG. 2A is ion-replaced with the natural porous ore particles 12 in the permanently charged state of FIG. Thus, natural porous ore particles 13 are generated.

  FIG. 3A shows turbid particles 15 in muddy water. The turbid particles 15 are very light and difficult to settle, and are negatively charged. Therefore, the van der Waals ( Since the intermolecular force does not work, it does not aggregate.

  FIG. 3 (b) shows the state when the positively charged natural porous ore particles 13 of FIG. 2 (c) are put into muddy water. The negatively charged muddy particles 15 are positively charged. Adsorbed and agglomerated on the particles 13 of the natural porous ore charged to the surface.

  As shown in FIG. 4, the natural porous ore particles 13 adsorbed and aggregated with the turbid particles 15 are connected to form a very large mass and settle due to its own weight.

  The water quality-improving treatment agent according to the present invention further improves and improves the principle of adsorption and aggregation of turbidity and the like explained in FIGS. 2 to 4, and also takes into account the prevention of sludge formation such as turbidity after sedimentation. It is. That is, a natural porous ore powder having a permanent charge, a natural ore of an ion-substitution material, an ion-substitution auxiliary material, a bond strengthening material that binds each ore material, and a pore that expands the pore size of the natural porous ore. It is a water quality improving agent with a charged surface that is produced by mixing two or more heating steps at different temperatures by mixing a pore size expanding material and an agglomeration auxiliary material, thus promoting ion substitution and bond strengthening. Since the agglomeration effect is improved, the sedimentation rate can be increased and the water quality can be improved quickly.

  Since natural porous ore has a large pore size due to the porous pore size expanding material, the porous material becomes the residence of bacteria in the environment after coagulation and sedimentation, and the turbid material that has been coagulated and settled is decomposed, so it becomes sludge at the bottom of the water. Will be prevented and lead to improvement of sediment quality in lakes and marshes.

Process drawing of one Embodiment of the manufacturing method of the water quality improvement processing agent which concerns on this invention. It is a conceptual diagram which shows the procedure in which natural porous ore is ion-substituted, (a) is the conceptual diagram in which the hydroxyl group of aluminum hydroxide was ionized, (b) is the conceptual diagram which shows the permanent charge of a natural porous ore, (c ) Is a conceptual diagram of ion-substituted natural porous ore particles. It is a conceptual diagram which shows the state in turbid water, (a) is a conceptual diagram which shows the turbidity which is a negative charge state, (b) is adsorbed by the natural porous ore powder particle | grains by which ion substitution was carried out, and its circumference | surroundings. Conceptual diagram of turbidity. The conceptual diagram which shows the state which the natural porous ore powder particle | grains by which ion substitution was carried out, and the turbidity adsorbed by the circumference | surroundings aggregated.

Explanation of symbols

11 Aluminum hydroxide 12 Natural porous ore particles 13 Positively charged natural porous ore particles 15 Turbid particles

Claims (8)

  Natural porous ore powder having permanent charge, natural ore of ion-substitution material, ion-substitution auxiliary material, bond strengthening material that binds each ore material, and porous pore size that enlarges the pore size of the natural porous ore A surface quality-improved water quality-improving treatment agent produced by mixing an expanding material and an agglomeration auxiliary material and performing ion substitution through two or more heating steps at different temperatures.   The natural porous ore is clinoptilolite, mordenite, heulandite, stellarite, erionite, illite, vermiculite, bentonite. The water quality improving agent according to claim 1, comprising at least one of montmorillonite, muscovite, chlorite, and sepiolite.   The natural ore of the ion replacement material is gibbsite which is an aluminum hydroxide, the ion replacement auxiliary material is opal, the bond strengthening material is kaolin, and the porous pore size expanding material is nacre. The water quality improvement treatment agent according to claim 1, wherein the coagulation auxiliary material is dolomite.   4. The surface according to claim 1, wherein the ion substitution by the ion substitution material is performed in an acidic region to charge the surface positively, or the alkali substitution is performed to charge the surface negatively. The water quality improving treatment agent according to any one of the above. A method for producing a surface-charged water quality improving treatment agent using natural ore as a raw material,
Natural porous ore powder having permanent charge, natural ore of ion-substitution material, ion-substitution auxiliary material, bond strengthening material that binds each ore material, and porous pore size that enlarges the pore size of the natural porous ore A first heating step in which the expansion material and the coagulation auxiliary material are mixed and heat-treated to perform ion substitution;
A second heating step in which the heat treatment is further performed at a higher temperature than the first heating step to strengthen the bond between the materials;
And a pulverization treatment step of pulverizing after the second heating step.   The natural porous ore is clinoptilolite, mordenite, heulandite, stellarite, erionite, illite, vermiculite, bentonite. The method for producing a water quality improving treatment agent according to claim 5, comprising at least one of montmorillonite, muscovite, chlorite, and sepiolite.   The natural ore of the ion replacement material is gibbsite which is an aluminum hydroxide, the ion replacement auxiliary material is opal, the bond strengthening material is kaolin, and the porous pore size expanding material is nacre. 6. The method for producing a water quality improving treatment agent according to claim 5, wherein the coagulation auxiliary material is dolomite. 8. The surface according to claim 5, wherein the ion substitution with the ion substitution material is performed in an acidic region to charge the surface positively, or the alkali substitution is performed to charge the surface negatively. The manufacturing method of the water quality improvement processing agent as described in any one.