KR20110032736A

KR20110032736A - Water treatment agent

Info

Publication number: KR20110032736A
Application number: KR1020090090379A
Authority: KR
Inventors: 이상렬
Original assignee: 아산텍 주식회사
Priority date: 2009-09-24
Filing date: 2009-09-24
Publication date: 2011-03-30

Abstract

The present invention relates to a water treatment medium, and more particularly, to a water treatment medium that may have a sterilizing effect of various fungi, an anti-sticking effect, and a rust prevention effect of a pipe.

Preferably, the water treatment medium according to an aspect of the present invention is a fine yarn having a thickness of 40 to 200 microns of an alloy including copper, zinc, silver, manganese, nickel, and aluminum. In addition, the water treatment medium according to another aspect of the present invention is preferably a particle size of 10 to 200 microns in diameter of the alloy containing copper, zinc, silver, manganese, nickel, and aluminum.

According to the present invention, by providing a water treatment medium with a large oxidation and reduction reaction energy, the sterilization effect of various fungi, the sterilization effect of algae, moss and mold, the prevention of scale adhesion, the prevention of rust generation in the pipe, the emulsification effect, the chlorine component Removal effect, heavy metal removal effect such as mercury, iron ion removal effect, sulfur compound (H ₂ S) and odor substance removal effect, bromine (Br) and fluorine (F) removal effect can be exhibited.

Description

Water treatment agent

Korean Patent Registration No. 10-0081942 discloses a water treatment medium made of metal granules of zinc (Zn) and copper (Cu) alloys. In the above patent, the weight ratio of copper and zinc is water treatment using a granule of an alloy of 1: 1 or 3: 2 or 7: 3. In this case, chlorine contained in the fluid may be removed by oxidation and reduction of copper and zinc.

In the conventional water treatment media, chlorine contained in the fluid was removed using a redox reaction of copper and zinc. The standard reduction potential of copper is 0.337V and the standard reduction potential of zinc is -0.763V. Thus, the electrode potential difference between copper and zinc is 1.1V.

In this case, there is a problem that the electrode potential difference is not large and the scale adhesion prevention effect or the emulsification effect is not large.

The present invention is to solve the above problems. In accordance with the present invention, the electrode potential difference is increased, as well as the effect of removing chlorine, as well as sterilizing effects of various fungi, preventing adhesion of scales, preventing rust from pipes, emulsifying effect, removing heavy metals such as mercury, removing iron ions, and sulfides (H). _It is an object of the present invention to provide a water treatment removal medium capable of removing odorous substances, bromine (Br) and fluorine (F) effects of 2S) and aldehydes.

Preferably, the water treatment medium according to an aspect of the present invention is a fine yarn having a thickness of 40 to 200 microns of an alloy including copper, zinc, silver, manganese, nickel, and aluminum.

In addition, the water treatment medium according to another aspect of the present invention is preferably a particle size of 10 to 200 microns in diameter of the alloy containing copper, zinc, silver, manganese, nickel, and aluminum.

In the above water treatment medium, the weight of the alloy is 30 to 40% copper, 50 to 60% zinc, 2 to 5% silver, 1 to 3% manganese, and 1 to 3 nickel. %, Preferably aluminum of 1 to 3%.

In the above water treatment medium, the weight of the alloy is 40 to 50% copper, 40 to 50% zinc, 2 to 5% silver, 1 to 3% manganese, and 1 to 3 nickel. %, It is possible that aluminum is 1-3%.

In the above water treatment medium, the weight of the alloy is 50 to 60% copper, 30 to 40% zinc, 1 to 3% silver, 1 to 3% manganese, and 1 to 3 nickel. %, It is possible that aluminum is 1-3%.

In the above water treatment medium, the weight of the alloy is 60 to 70% copper, 20 to 30% zinc, 1 to 3% silver, 1 to 3% manganese, and 1 to 3 nickel. %, It is possible that aluminum is 1-3%.

1 is a perspective view of a water treatment apparatus using a water treatment medium according to the present invention, and FIG. 2 is a cross-sectional view of the water treatment apparatus shown in FIG. 1. 3 to 12 show experimental results of water treatment using the water treatment apparatus shown in FIG. 1. 1 to 12, an embodiment of a water treatment medium according to the present invention is described.

The water treatment medium according to the present invention is composed of an alloy of copper (Cu), zinc (Zn), silver (Ag), manganese (Mn), nickel (Ni), aluminum (Al), and has a thickness of 40 to 200 microns. It may be composed of a microfiber or fine particles of 10 to 200 microns in diameter. The weight ratio of these materials is first composed of 30 to 40% copper, 50 to 60% zinc, 2 to 5% silver, 1 to 3% manganese, 1 to 3% nickel and 1 to 3% aluminum. (Case 1). Or 40 to 50% copper, 40 to 50% zinc, 2 to 5% silver, 1 to 3% manganese, 1 to 3% nickel, and 1 to 3% aluminum (Case 2). . Alternatively, copper may be composed of 50 to 60%, zinc 30 to 40%, silver 1 to 3%, manganese 1 to 3%, nickel 1 to 3%, and aluminum 1 to 3% (Case 3). . Alternatively, copper may be composed of 60 to 70%, zinc 20 to 30%, silver 1 to 3%, manganese 1 to 3%, nickel 1 to 3%, and aluminum 1 to 3% (Case 4). .

At this time, the standard reduction potential of zinc (E ₀ ) is -0.763V, the standard reduction potential of copper is 0.337V, the standard reduction potential of silver is 0.799V. The standard reduction potential of manganese is -1.18V, the standard reduction potential of nickel is -0.25V, and the standard reduction potential of aluminum is -1.16V.

The electrode potential difference between zinc and copper is 1.1V. However, when silver is added to it, the electrode potential difference is 1.562V, which increases the oxidation / reduction energy, resulting in the sterilization effect of various fungi, the sterilization effect of algae, moss and mold, the prevention of scale adhesion, and the rusting of pipes. Prevention effect, emulsification effect, chlorine removal effect, heavy metal removal effect such as mercury, iron ion removal effect, odor removal effect of sulfur compounds (H ₂ S) and aldehyde components, bromine (Br) and fluorine (F) removal Effect. Trace elements such as manganese, nickel, and aluminum are added to the basic materials of copper, zinc and silver to control the rate and size of the oxidation and reduction reactions. Especially in the case of treating water containing some salt, the addition of nickel is effective in controlling the reaction rate. In the above water treatment medium, Case 3 is an optimal condition for exhibiting the above-mentioned effects. Particularly, Case 1 or Case 2 and Case 4 are effective for removing excess chlorine and preventing scale.

The principle of sterilization by redox reaction is as follows.

Cu / Zn ^0- > Cu ⁺² / Zn ⁺² + 2e ^- Reduction

_{^{H 2 O + 2e - ->}} OH - + .H oxidation

H ₂ O + .H-> .OH + H ₂

It sterilizes due to hemolysis due to electronic ion exchange with cells of microorganisms and sterilizes by electrochemical action by redox reaction.

In the redox process material through the oxidation electron (e ^-) there is to emit, the first electronic acts to kill the bacteria by a cell wall hemolysis by acting on the bacteria, such as bacterial cells. Secondly, the released electrons react with water to produce hydrogen radicals (.H), which in turn react with water to produce hydroxyl radicals (.OH). It reaches about 800 times (Cl). Third, hydroxyl groups (OH ⁻ ) are produced during the reaction, and the pH increases due to the hydroxyl groups. When the pH is more than 9.5, it becomes an environmental condition that is difficult to inhabit various germs, so REDOX makes it possible to effectively sterilize because of the strong sterilization and the difficult environment of germs in the reaction process.

The principle of scale prevention by redox reaction is as follows.

_{^{2 (HCO 3 -) + Ca}} 2 + -> CaCO 3 + H 2 O + CO 2

The metal ion is Ca ⁺ ² or Mg ⁺ ² and compete with consequently interfere with the generation and crystal growth of CaCO ₃ or MgCO _3. Therefore, the scale forming material such as Mg ² ⁺ , Na ² ⁺ , SlO ₂ ² ⁺ is removed.

The scale prevention effect is one of the great effects of the redox reaction, and in general, the scale causes charges on the pipe wall for various reasons in the fluid flow process, and fine particles of scale, such as calcium carbonate, are attracted to the charge and adhere to the pipe wall. In this process, scale is formed. However redox the charge (e ^-) which is the core of the scale formed in the course of the reaction pipe wall by serving to ensure that the particles are coarsened to provide the solution to form a crystal in the scale required on the pipe wall liquid It essentially prevents it from being attached to it.

As the crystal grain size increases, the volume free energy decreases due to the Gibbs-Kelvin formula, making it difficult to adhere to the tube, and the grain-grown crystal grains are removed through deposition or petering.

The principle of odor removal by redox reaction is as follows.

Cu / Zn ⁰ + H ₂ S <-> CuS + H ₂

2H ₂ + O ₂ <-> 2H ₂ O

_{CH 3 (CH 2) 3 CHO} + OH - + H 2 O -> CH 3 (CH 2) 3 CH (OH) 2 + OH -

Redox causes various beneficial reactions in the reaction process, and among them, it has an excellent effect in decomposing odor-causing substances of hydrogen sulfide and aldehyde system, and the effect can be immediately recognized by decomposing fundamentally odor-causing substances through reaction. Maintain the effect over a long period of time. The odor component is decomposed by the electrochemical action to fundamentally eliminate the cause of the odor.

The principle of chlorine removal by redox reaction is as follows.

_{^{Zn (s) -> Zn 2}} + + 2e -

^{_{ClO - (aq) + H 2}} O + 2e - -> Cl - (aq) + 2OH - (aq)

_{^{_{Zn (s) + ClO - (}}} aq) + H 2 O -> Zn 2 + + Cl - (aq) + 2OH - (aq)

Chlorine is commonly used for sterilization. However, the problem of chlorine disinfection is that chlorine disinfection by-products (TOX) may be generated by reacting with chlorine and organic substances in water and cause corrosion of piping system. Redox has an excellent ability to remove these free chlorine during the reaction.

The principle of heavy metal removal by redox reaction is as follows.

^{Cu / Zn 0 + Pb 2 +} (NO 3) 2- -> Cu / ZnPb 0 + Zn 2 + + 2NO 3 -

Redox is excellent for removing heavy metals because it reacts with deadly heavy metals such as mercury and lead to form and deposit salts.

The principle of iron removal by redox reaction is as follows.

^{Fe 3 + + e - ->} Fe 2 + + 2e - -> Fe

The redox reaction prevents iron from rusting and reduces rust to prevent pipe corrosion and remove rust.

In order to confirm the effect of the present embodiment as shown in Fig. 1 and 2, the water treatment experiment was carried out by inserting the fine yarn (1) of copper, zinc, silver, manganese, nickel, aluminum alloy in the water treatment apparatus 10. Water is introduced into the fine yarn (1) as shown by arrow 3, and then treated in the fine yarn (1) to flow out as shown by arrow 5. An alloyed yarn 1 was used in the proportion of Case 3 described above.

Figure 3 was measured the concentration of chlorfil-A according to the amount of fine yarn (1). Water treatment was performed using the fine yarn (1) using 0.0g, 0.5g, 1.0g, 2.0g, 3.0g. When the fine yarn 1 is used in more than 1.0 g, it can be seen that the concentration of chlorophyll-A does not increase even if time passes and the constant value is maintained.

Figure 4 measured the degree of algae death according to the amount of fine yarn (1). Water treatment was performed using 0.0g, 10g, and 20g of fine yarns (1). It can be seen that the algae are reduced and do not exceed a certain level when the sewage (1) is used for water treatment.

5 and 6 measured the concentration of copper and zinc in the solution according to the amount of fine yarn (1). 5 is a concentration value of copper, and FIG. 6 is a concentration value of zinc. Water treatment was performed using 0.0g, 10g, and 20g of fine yarns (1). In the solution treated with Sesa (1), the concentration of copper increased to maintain a constant value, and zinc was not detected.

7 to 10 are graphs comparing the results of various experiments with river water using the sesa in Case 3 and the results without using sesa. In FIG. 7, when turbidity is not used, turbidity is not good as 7 (NTU) when time passes, but when turbidity is used, turbidity is improved to 1 (NTU). In FIG. 8, when E. coli is not used, E. coli is 140 (dog / 100 mL) when time passes, but E. coli is nearly 0 (dog / mL) when Cesa is used. In the case of not using the yarn in Figure 9 it can be seen that the algae is 9000 (dog / mL) when time passes, but the alga is almost 0 (dog / mL). In the case of using the yarn in Figure 10 it can be seen that the number of common bacteria gradually decreases over time. 7 to 10 are summarized as shown in Table 1 below.

Filtration 0 5 10 30 50 100 time 0 15min 30min 90min 150min 300min Turbidity (NTU) 7.2 2.6 1.2 1.1 0.9 0.9 pH 8.02 7.83 7.83 7.92 7.95 7.93 E. coli 24 hours (dog / 100mL) 130 22 11 0 0 0 General bacteria 24 hours (CFU / mL) 553 473 441 400 180 35 Algae (dog / mL) 7700 320 180 0 0 0

Figure 11 shows the results of experiments on the degree of death of E. coli when water treatment of river water using sesa. If water treatment is not used with sesame, E. coli can increase rapidly after 4 hours. However, when the water treatment using 0.5 g of fine yarn E. coli is increased a little, and when the water treatment using 1.0 g fine yarn E. coli can be seen that little increase.

FIG. 12 shows the results of experiments to measure the degree of scale inside the pipe when water treatment was performed using fine yarn and when no fine yarn was used. The pipe had an internal diameter of 1.67 mm, a length of 1.0 m, a solution flowing inside the pipe at 60 ° C. and a concentration of CaCO _{3 in} the solution at 300 ppm. The flow rate of the solution through the pipe was measured to determine the degree of scale inside the pipe. If the water treatment is not performed using fine sand, it can be seen that the flow rate of the solution flowing in the pipe gradually decreases over time, and then rapidly decreases after 6 days. In other words, it can be seen that scale is generated inside the pipe, thereby reducing the hole of the pipe. However, it can be seen that the flow rate of the solution is almost constant when water treatment is performed using fine sand. That is, almost no scale occurs inside the pipe.

1 is a perspective view of a water treatment apparatus using a water treatment medium according to the present invention,

2 is a cross-sectional view of the water treatment apparatus shown in FIG.

3 is a concentration test result of the water treatment chlorfil-A using the water treatment medium according to the present invention,

4 is an experimental result of the algae killing water treatment using the water treatment medium according to the present invention,

5 is a concentration test result of the copper (Cu) treated with the water treatment medium according to the present invention,

6 is a concentration test result of zinc (Zn) treated with a water treatment medium according to the present invention,

7 is an experimental result of the turbidity change of the water treatment using the water treatment medium according to the present invention,

8 is an experimental result of the change of E. coli treated with water using the water treatment medium according to the present invention,

9 is an experimental result of the algae change water treatment using the water treatment medium according to the present invention,

10 is a test result of the general bacterial changes in water treatment using the water treatment medium according to the present invention,

11 is a test result of E. coli killing water treatment using the water treatment medium according to the present invention,

12 is an experimental result of descaling water treatment using the water treatment medium according to the present invention.

1: water treatment medium 10: water treatment device

Claims

A water treatment medium in which the thickness of an alloy comprising copper, zinc, silver, manganese, nickel, and aluminum is 40 to 200 microns in size.

A water treatment medium consisting of particles having a diameter of 10 to 200 microns of an alloy comprising copper, zinc, silver, manganese, nickel and aluminum.

The method according to claim 1 or 2,

The weight of the alloy is 30 to 40% copper, 50 to 60% zinc, 2 to 5% silver, 1 to 3% manganese, 1 to 3% nickel, 1 to 3% aluminum. Water treatment medium, characterized in that the.

The method according to claim 1 or 2,

The weight of the alloy is 40 to 50% copper, 40 to 50% zinc, 2 to 5% silver, 1 to 3% manganese, 1 to 3% nickel, 1 to 3% aluminum Water treatment medium, characterized in that the.

The method according to claim 1 or 2,

The weight of the alloy is 50 to 60% copper, 30 to 40% zinc, 1 to 3% silver, 1 to 3% manganese, 1 to 3% nickel, 1 to 3% aluminum Water treatment medium, characterized in that the.

The method according to claim 1 or 2,

The weight of the alloy is 60 to 70% copper, 20 to 30% zinc, 1 to 3% silver, 1 to 3% manganese, 1 to 3% nickel, 1 to 3% aluminum Water treatment medium, characterized in that the.