TWM603881U - Waste water purification system of catalyst-containing film tube - Google Patents

Abstract

This creation relates to a waste water purification system containing a catalyst membrane tube, which includes an ozone generator, a membrane tube tank with a membrane tube module, a water storage tank and a pump. The membrane tube module has a first One end is connected to the ozone generator and the pump, and the second end opposite to the first end is connected to the water storage tank, and a plurality of porous membrane tubes. Each porous membrane tube includes a hollow channel, a braided layer surrounding a hollow channel, A coating covering the braided layer and a plurality of catalysts arranged in the coating; thereby, the invention can effectively reduce the organic content and metal content in the wastewater.

Description

Wastewater purification system with catalyst membrane tube

This creation is about a waste water purification system containing catalyst membrane tubes, especially a waste water purification system that can carry out efficient catalytic oxidation reactions, so as to effectively reduce the chemical pollutants in the waste water.

According to, industrial wastewater contains high concentrations of chemical pollutants. If it is directly discharged into underground waterways or rivers, it will seriously pollute environmental water bodies. Therefore, careful treatment and purification of wastewater before discharge has become an important measure. The agency stipulates that the organic content or metal content in wastewater must be treated below a certain level before it can be discharged to ensure the safety of environmental water resources.

At present, there are various methods or systems for treating wastewater. For example, the Republic of China Patent Publication No. M592436 discloses a membrane tube electrodialysis desalination system, which mainly includes membrane tube groups and isolation nets, which can effectively desalinate salt in water. In addition, the Republic of China Patent Publication No. I606994 discloses a method for preparing a ceramic catalyst membrane tube, which is mainly to mix sinterable powder, metal salts and binders, and then use The mixed sinterable powder, metal salt, and binder form a tube of membrane, which is then sintered to form a ceramic catalyst membrane tube. By this, when the ceramic catalyst membrane tube is applied to the catalyst catalytic oxidation system, it can oxidize and degrade the containing In the case of phenol wastewater, the pollutants in the phenol wastewater can be effectively converted and the total organic carbon can be effectively removed.

Due to the large demand for different wastewater treatment equipment in Taiwan's industries, how to develop various wastewater treatment or purification systems to reduce the content of chemical pollutants in wastewater is still an important direction for creators in related fields.

The main purpose of this creation is to provide a waste water purification system containing catalyst membrane tubes, especially a waste water purification system that can carry out efficient catalytic oxidation reactions, so as to effectively reduce chemical pollutants in the waste water.

In order to achieve the above implementation objectives, this creation provides a waste water purification system containing catalyst membrane tubes, which includes: an oxygen supply device; an ozone generator connected to the oxygen supply device; a membrane tube tank with a water inlet and a The opposite water outlet side contains a membrane tube module. The membrane tube module has a first end connected to the ozone generator, an opposite second end, and a plurality of porous membrane tubes, each of which includes A hollow channel, a braided layer looped around the hollow channel, a coating covering the braided layer, and a plurality of catalysts arranged in the coating; a water storage tank with a water inlet and a water outlet, in which The water port is connected to the water outlet of the membrane tube tank by a pipeline; and a pump with an input end connected to the water outlet of the water storage tank, and an output end connected to the water inlet end of the membrane tube tank.

In this way, the present invention can effectively reduce the organic content and metal content in wastewater (such as chemical chelate wastewater, wastewater containing polyvinyl alcohol (PVA), phenol wastewater, dyeing and finishing wastewater, etc.).

The purpose of this creation and its structural and functional advantages will be explained based on the structure shown in the following figure and with specific embodiments, so that the review committee can have a deeper and specific understanding of this creation.

Please refer to the first figure. This creation provides a waste water purification system containing catalyst membrane tube, which mainly includes an oxygen supply device (1), an ozone generator (2), a membrane tube tank (3) with a membrane tube Module (31), a water storage tank (4) and a pump (5). The ozone generator (2) is connected to an oxygen supply device (1), so that the oxygen supply device (1) provides oxygen to the ozone generator (2) to produce ozone. The membrane tube tank (3) has a water inlet (3a) and an opposite water outlet (3b), and contains a membrane tube module (31); the water storage tank (4) has a water inlet (41) and a The water outlet (42), the water outlet (3b) of the membrane tube tank (3) is connected to the water inlet (41) of the water storage tank (4) with a pipeline (43); the pump (5) has an input end (51) Connect the water outlet (42) of the water storage tank (4), and an output end (52) connected to the water inlet (3a) of the membrane tube tank (3); and also connected to the water outlet (3b) of the membrane tube tank (3) A pH meter (6) can be further provided on the pipeline (43) of the water storage tank (4) to facilitate adjustment of the pH value of the wastewater.

As shown in the second figure, the membrane tube module (31) has a first end (31a), a second end (31b) opposite to the first end (31a), and a plurality of porous membrane tubes (311).

Also, please refer to the third figure again. Each porous membrane tube (311) includes a hollow channel (3111), a braided layer (3112) arranged around the hollow channel (3111), and a braided layer (3112). ) Coating (3113), and multiple catalysts (3114) arranged in the coating (3113). Preferably, the diameter of the hollow channel (3111) of each porous membrane tube (311) can be, for example, 1~1.2 mm, the thickness of the braided layer (3112) is 0.4-0.6 mm, and the thickness of the coating (3113) It is 0.1-0.2 mm. The braided layer (3112) may be, for example, a polyester yarn layer, and the coating layer (3113) may be, for example, selected from polyvinylidene fluoride (PVDF) film, polysulfide (PSF) film and cellulose acetate (cellulose acetate) A group of films.

Preferably, the catalyst (3114) can be selected from manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), nickel (Ni), titanium ( Ti) or cerium (Ce) oxide.

Preferably, the catalyst (3114) can be, for example, composed of an active component and a carrier, the active component is selected from manganese (Mn), iron (Fe), cobalt (Co), copper ( Cu), zinc (Zn), nickel (Ni), titanium (Ti) or cerium (Ce) oxides, and the support is selected from activated alumina pellets, activated carbon, ceramsite, porous zeolite or graphene, Especially activated carbon or graphene has more surface area, which can make organic matter decompose more effectively.

In addition, the following specific embodiments can further prove the scope of practical application of this creation, but it is not intended to limit the scope of this creation in any form.

Example one

Please refer to the first picture for the actual use of the wastewater purification system with catalyst membrane tube in this creation. The oxygen supply device (1) is connected to the ozone generator (2), and the ozone generator (2) produces ozone by the membrane tube module The first end (31a) of (31) enters the membrane tube module (31) for catalytic oxidation reaction. The water outlet (3b) of the membrane tube tank (3) is connected to the inlet of the water storage tank (4) by a pipeline (43). The water outlet (41) is connected to the water outlet (42) of the water storage tank (4) to the input end (51) of the pump (5), and the output end (52) of the pump (5) is connected to the membrane tube tank (3) Inlet end (3a). Thereby, the whole system forms a loop, and the waste water to be treated is stored in the water storage tank (4). When the pump (5) starts to pump, the waste water passes through the water outlet (42) of the water storage tank (4) through the pump ( 5) Enter the membrane tube tank (3), and pass through the membrane tube module (31) filled with ozone (8) for purification treatment (as shown in the fourth picture), and the treated wastewater is then passed through the membrane tube module (31) The water outlet (3b) of the water outlet (3b) flows into the water inlet (41) of the water storage tank (4) through the pipeline (43) and returns to the water storage tank (4) again. In this way, the purpose of repeatedly treating and purifying wastewater can be achieved. In addition, in order to enhance the convenience of use of the system, a control panel (7) can also be provided to connect and control the oxygen supply device (1), the ozone generator (2) and the pump (5).

Please refer to the second and third figures. The upper ring of the membrane tube module (31) is provided with a plurality of porous membrane tubes (311), and each of the porous membrane tubes (311) has a hollow channel (3111) and a braid. The (3112) ring is arranged in the hollow channel (3111), and the coating (3113) covering the braided layer (3112). The braided layer (3112) is a polyester yarn layer, and the coating (3113) is mixed with a plurality of catalysts (3114). The catalyst (3114) can be, for example, a metal oxide or a metal oxide with a carrier. , To enhance the catalytic oxidation reaction. Please refer to the fourth figure, the ozone (8) will be distributed in the membrane tube module (31) after entering the membrane tube groove (3), so the catalyst (3114) on the coating (3113) of the porous membrane tube (311) Contact with ozone (8) and jointly carry out the catalytic oxidation reaction of wastewater. The reaction catalyzed by ozone (8) and metal catalyst (3114) is that ozone (8) generates oxygen free radicals through the catalyst (3114), and oxygen free radicals follow Water forms hydroxyl radicals, and finally the hydroxyl radicals destroy the organic matter and decompose the organic matter into carbon dioxide and water.

Example two

Please refer to Table 1, the fifth figure and the sixth figure. The porous membrane tube (311) has multiple filter holes (3115) with a particle size of 0.22~10 μm, and the porous membrane tube (311) can be adjusted to different filter holes. The pore size and operating pressure of (3115) can control the movement of ozone (8). As shown in Table 1, the first operation mode makes ozone (8) appear to be saturated and stay in the porous membrane tube (311) without escaping. Porous membrane tube (311); the second operation mode is to make ozone (8) escape from the porous membrane tube (311) with fine bubbles.

Table 1: The operating pressure of different pore sizes Aperture (μm) Operation mode one Operation mode two 0.22 ＜0.35~0.4 (Mpa) ＞0.35~0.4 (Mpa) 0.30 ＜0.3 (Mpa) ＞0.3 (Mpa) 0.45 ＜0.23 (Mpa) ＞0.23 (Mpa) 0.65 ＜0.14 (Mpa) ＞0.14 (Mpa) 0.80 ＜0.11 (Mpa) ＞0.11 (Mpa) 1.2 ＜0.08 (Mpa) ＞0.08 (Mpa) 3.0 ＜0.07 (Mpa) ＞0.07 (Mpa) 5.0 ＜0.04 (Mpa) ＞0.04 (Mpa) 8.0 ＜0.03 (Mpa) ＞0.03 (Mpa) 10.0 ＜0.01 (Mpa) ＞0.01 (Mpa)

The double arrow in the hollow channel (3111) in the fifth figure represents the path of ozone (8) entering the porous membrane tube (311). Due to the use of operation mode 1 to control the pore size and pressure, the ozone (8) fills the porous membrane tube (311) The hollow channel (3111) for catalytic oxidation reaction. In addition, the double arrow in the hollow channel (3111) in the sixth figure represents the path of ozone (8) entering the porous membrane tube (311). Due to the use of operation mode 2 to control the pore size and pressure, the ozone entering the porous membrane tube (311) (8) Escape from the porous membrane tube (311). Since ozone (8) generates oxygen free radicals through catalyst (3114), the oxygen free radicals then form hydroxide free radicals with water, and finally the hydroxide free radicals destroy organic matter, so the organic matter in the wastewater can be decomposed into carbon dioxide and water.

Example three

The type of wastewater that can be treated by this creation is not limited, such as chemical chelate wastewater, wastewater containing polyvinyl alcohol (PVA), phenol wastewater, dyeing wastewater, etc., all of which can be used to decompose the organic matter or metal content in the wastewater. , Its efficacy verification results are as follows:

(1) Use the wastewater purification system containing catalyst membrane tube of this creation to treat Sinopec Green Energy's phenol-containing wastewater. For the results, please refer to the seventh figure, which shows that the color of wastewater can be decomposed and the chemical oxygen demand (COD) value can be reduced. , The COD value of the original solution is 18125 after treatment and it is reduced to 7650, and the color is almost removed. If the COD value is 17925 only by filtration (no ozone provided), it means that the system in this case can be used to treat phenol-containing wastewater.

(2) The wastewater purification system containing catalyst membrane tube of this creation is used to treat wastewater containing molybdenum (Mo). The test results show that the initial wastewater contains about 68 ppm of molybdenum. The use of sodium diethyldithiocarbamate (Sodium diethyldithiocarbamate) , SDDC) (heavy metal trapping agent) treatment, the molybdenum concentration is reduced to about 1~2 ppm; if the wastewater is treated with this system and ozone before adding SDDC, the molybdenum concentration can be reduced to 0.4, which is less than the current EPA emission standard 0.6 ppm, which means that the system in this case can be used to treat wastewater containing molybdenum (Mo).

(3) Use the catalyst-containing membrane tube wastewater purification system of this creation to treat TSMC's cobalt (Co) wastewater. The Co concentration department commissioned Professor Lai Zhenli of Jianan University of Pharmacology to use inductively coupled plasma (ICP) measuring. The test data showed that the concentration of Co in untreated raw water was 4.387 ppm; (a) After the ozone-treated water sample was adjusted to pH 13, the water sample filtered through the catalyst-containing membrane tube of this creation was 0.692 ppm; (b) The ozone-treated water sample is adjusted to pH 13, and 300 ppm SDDC is added. The water sample filtered through the catalyst-containing membrane tube of this creation is ND (<0.1 ppm) (detection concentration) The value is 0.1 ppm), which means that the system in this case can be used to treat wastewater containing cobalt (Co).

From the above implementation description, it can be seen that compared with the prior art, this creation has the following advantages:

1. This creation is based on the porous membrane tube directly provided with a catalyst on the coating, so when ozone contacts the catalyst on the porous membrane tube, it can directly undergo an oxidation catalytic reaction.

2. This creation can be used to treat different types of wastewater to reduce the chemical pollutants in the wastewater and remove the color to achieve the purpose of purifying wastewater.

3. This creation can control the content or residence time of ozone in the membrane tube module by adjusting the aperture of the filter hole with different operating pressures, thereby controlling the catalytic oxidation reaction.

In summary, the waste water purification system containing the catalyst membrane tube of this creation can indeed achieve the expected use effect through the embodiments disclosed above, and this creation has not been disclosed before the application. The provisions and requirements of the Patent Law. If you file an application for a new type patent in accordance with the law, you are kindly requested to review it and grant a quasi-patent.

However, the above-mentioned illustrations and descriptions are only the preferred embodiments of this creation, and are not intended to limit the scope of protection of this creation. For those who are familiar with the art, the characteristics of the creation based on the scope of this creation, and others Equivalent changes or modifications should be regarded as not departing from the design scope of this creation.

1: Oxygen supply device

2: Ozone production machine

3: Membrane tube groove

3a: Water inlet

3b: Water outlet

31: Membrane tube module

31a: first end

31b: second end

311: Porous membrane tube

3111: Hollow channel

3112: Braid

3113: Coating

3114: Catalyst

3115: filter hole

4: Water storage tank

41: Water inlet

42: water outlet

43: Pipeline

5: Pump

51: Input

52: output

6: pH meter

7: Control Panel

8: Ozone

9: Water flow

Figure 1: The schematic diagram of the preferred implementation of the wastewater purification system with the catalyst membrane tube of this creation.

Figure 2: A perspective view of the preferred implementation of the film tube module of this creation.

Figure 3: A cross-sectional view of the porous membrane tube of this creation in its preferred implementation.

Figure 4: A schematic diagram of this invention's preferred embodiment ozone aeration through the porous membrane tube of the membrane tube module.

Figure 5: A schematic diagram of the first operation mode in the preferred embodiment of this author to make ozone stay in the porous membrane tube.

Figure 6: A schematic diagram of the second mode of operation in the preferred embodiment of this creation to make ozone escape from the porous membrane tube (dashed arrow).

Figure 7: Photographs before and after treatment of wastewater in the specific embodiment of this author.

1: Oxygen supply device

2: Ozone production machine

3: Membrane tube groove

3a: Water inlet

3b: Water outlet

31: Membrane tube module

31a: first end

31b: second end

311: Porous membrane tube

4: Water storage tank

41: Water inlet

42: water outlet

43: Pipeline

5: Pump

51: Input

52: output

6: pH meter

7: Control Panel

Claims (9)

A waste water purification system containing a catalyst membrane tube, which includes: An ozone generator; A membrane tube tank has an inlet end and an opposite outlet end, and contains a membrane tube module. The membrane tube module has a first end connected to the ozone generator, an opposite second end, and a plurality of Porous membrane tubes, wherein each porous membrane tube includes a hollow channel, a braided layer around the hollow channel, a coating covering the braided layer, and a plurality of catalysts arranged in the coating ； A water storage tank having a water inlet and a water outlet, wherein the water inlet is connected to the water outlet end of the membrane tube tank by a pipeline; and A pump has an input end connected to the water outlet of the water storage tank, and an output end connected to the water inlet end of the membrane tube tank. The wastewater purification system containing catalyst membrane tube according to claim 1, wherein a pH meter is provided on the pipeline connecting the outlet end of the membrane tube tank to the water storage tank. The waste water purification system containing catalyst membrane tubes according to claim 1, wherein each of the porous membrane tubes has a plurality of filter holes with a particle size of 0.22-10 μm. The waste water purification system with catalyst-containing membrane tube according to claim 1, wherein the plurality of catalysts are selected from manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn) ), nickel (Ni), titanium (Ti) or cerium (Ce) oxides. The waste water purification system with a catalyst-containing membrane tube according to claim 1, wherein the plurality of catalysts are composed of an active component and a carrier. The wastewater purification system containing catalyst membrane tube according to claim 5, wherein the active component is selected from manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn) , Nickel (Ni), titanium (Ti) or cerium (Ce) oxide, and the support is selected from activated alumina pellets, activated carbon, ceramsite, porous zeolite or graphene. The waste water purification system of the catalyst-containing membrane tube according to claim 1, wherein the braided layer is a polyester yarn layer, and the coating is selected from polyvinylidene fluoride (PVDF) membranes, polyvinylidene (PSF) ) A group of films and cellulose acetate films. The waste water purification system containing catalyst membrane tube according to claim 7, wherein the diameter of the hollow channel is 1~1.2 mm, the thickness of the braided layer is 0.4-0.6 mm, and the thickness of the coating is 0.1-0.2 mm. The waste water purification system with a catalytic membrane tube as described in claim 1, further comprising an oxygen supply device connected to the ozone generator to provide oxygen to produce ozone.

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