CN211847315U - Hydrogen peroxide removing system - Google Patents
Hydrogen peroxide removing system Download PDFInfo
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- CN211847315U CN211847315U CN202020333474.9U CN202020333474U CN211847315U CN 211847315 U CN211847315 U CN 211847315U CN 202020333474 U CN202020333474 U CN 202020333474U CN 211847315 U CN211847315 U CN 211847315U
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Abstract
The utility model discloses a hydrogen peroxide solution removing system, which comprises a manganese sand filter (3), wherein the manganese sand filter (3) comprises a filter shell and a manganese sand filter material arranged in the filter shell, two openings are arranged on the filter shell, and the two openings are respectively positioned at two sides of the manganese sand filter material; one of the two openings is a water inlet, and the other opening is a water producing opening. According to the hydrogen peroxide removing system, oxidizing substances such as hydrogen peroxide in the wastewater are reduced by utilizing the catalytic action of the manganese sand, so that the effect of the hydrogen peroxide in the wastewater can be effectively removed, and the problem that materials are oxidized during subsequent wastewater recycling treatment is solved. The method can reduce the destructive effect of hydrogen peroxide in the wastewater on treatment materials (such as microorganisms in a subsequent wastewater biochemical treatment system, ion exchange resin in a recovered water treatment system, a reverse osmosis membrane and the like), reduce the influence of the hydrogen peroxide on the COD measurement value of the wastewater, and improve the detection precision of the COD measurement value of the wastewater.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to hydrogen peroxide solution removing system.
Background
Hydrogen peroxide is widely used in semiconductor manufacturing processes due to its strong oxidizing property. It is mainly used as cleaning agent, etching agent and photoresist remover for semiconductor silicon wafer, and also can be used for preparing high-grade insulating layer, removing inorganic impurities in electroplating solution, treating copper, copper alloy, gallium and germanium in electronic industry, and etching and cleaning solar silicon wafer. Therefore, the wastewater discharged from the semiconductor manufacturing process usually contains a large amount of hydrogen peroxide.
Since hydrogen peroxide can be automatically decomposed into water and oxygen under an alkaline condition and the discharge concentration of hydrogen peroxide is not specified in the sewage discharge standard, the conventional wastewater treatment system has no particular attention to hydrogen peroxide.
However, hydrogen peroxide is reducing and can react with strong oxidants (such as potassium dichromate), which can seriously interfere with the measurement of COD (Chemical Oxygen Demand) in wastewater. If the high-concentration hydrogen peroxide cannot be properly treated, the oxidability of the hydrogen peroxide has strong influence on microorganisms in a subsequent wastewater biochemical treatment system or treatment materials such as ion exchange resins and reverse osmosis membranes in a recovered water treatment system.
Therefore, how to improve the detection precision of the COD measurement value of the wastewater and reduce the damage of the wastewater to the treatment material is a problem to be solved urgently by the technical personnel.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a hydrogen peroxide solution gets rid of system to improve the detection precision of waste water COD measured value, reduce the destructive action of waste water to the processing material.
In order to achieve the above object, the utility model provides a following technical scheme:
a hydrogen peroxide removal system comprises a manganese sand filter, wherein the manganese sand filter comprises a filter shell and a manganese sand filter material arranged in the filter shell, two openings are formed in the filter shell, and the two openings are respectively positioned on two sides of the manganese sand filter material;
one of the two openings is a water inlet, and the other opening is a water producing opening.
Optionally, the hydrogen peroxide removal system further includes:
the water inlet pipeline can be used for switching and communicating the water inlet and the water producing port;
the water production pipeline is communicated with the water production port and is provided with a water production valve;
and the drainage pipeline is communicated with the water inlet and is provided with a drainage valve.
Optionally, the hydrogen peroxide removing system further comprises a communicating pipeline communicating the drainage pipeline with the water producing port, and the communicating pipeline is provided with a positive discharge valve.
Optionally, in the above hydrogen peroxide removal system, the water producing port is located at the bottom of the manganese sand filter;
still include the blowdown pipeline, the blowdown pipeline with produce water mouth intercommunication, be provided with the blowoff valve on the blowdown pipeline.
Optionally, the hydrogen peroxide removal system further includes:
the first branch pipeline is communicated with the water inlet and is provided with a water inlet valve;
and the second branch pipeline is communicated with the water inlet pipeline and the water producing port and is provided with a reverse inlet valve.
Optionally, the hydrogen peroxide removing system further comprises a three-way valve, an inlet of the three-way valve is communicated with the water inlet pipeline, a first outlet of the three-way valve is communicated with the water inlet, and a second outlet of the three-way valve is communicated with the water producing port.
Optionally, in the above hydrogen peroxide removal system, the manganese sand filter is a pressure vessel.
Optionally, the hydrogen peroxide removal system further comprises a pressure detection device for detecting the internal pressure of the manganese sand filter.
Optionally, in the above hydrogen peroxide removal system, the filter housing is a sealed cylindrical housing.
Optionally, in the hydrogen peroxide removal system, the content of manganese dioxide in the manganese sand filter material is greater than 40%.
According to the above technical scheme, the utility model provides a hydrogen peroxide solution removing system is through setting up manganese sand filter for waste water is after getting into manganese sand filter by the water inlet, with the manganese sand filter material in the filter housing abundant contact, under the catalytic action of manganese dioxide composition in the manganese sand filter material, redox reaction takes place for hydrogen peroxide solution in the waste water, decomposes into water and oxygen by oneself, thereby can get rid of, produces the water mouth again and flows, accomplishes the effect of getting rid of hydrogen peroxide solution in the waste water. The utility model provides a hydrogen peroxide solution removing system through the catalytic action who utilizes manganese sand, with the oxidizing substance reduction such as hydrogen peroxide solution in the waste water, can effectively get rid of the effect of hydrogen peroxide solution in the waste water, the material is by the problem of oxidation when avoiding follow-up waste water retrieval and utilization to handle. The method can reduce the destructive effect of hydrogen peroxide in the wastewater on treatment materials (such as microorganisms in a subsequent wastewater biochemical treatment system, ion exchange resin in a recovered water treatment system, a reverse osmosis membrane and the like), also reduces the influence of the hydrogen peroxide on the COD measurement value of the wastewater, and improves the detection precision of the COD measurement value of the wastewater.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hydrogen peroxide removal system according to an embodiment of the present invention.
Detailed Description
The utility model discloses a hydrogen peroxide solution removing system to improve the detection precision of waste water COD measured value, reduce the destructive action of waste water to the processing material.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a hydrogen peroxide solution removing system, including a manganese sand filter 3, where the manganese sand filter 3 includes a filter housing and a manganese sand filter material disposed in the filter housing, the filter housing has two openings, and the two openings are respectively located at two sides of the manganese sand filter material; one of the two openings is a water inlet, and the other of the two openings is a water producing port.
The embodiment of the utility model provides a hydrogen peroxide solution system of getting rid of, through setting up manganese sand filter 3 for waste water is after getting into manganese sand filter 3 by the water inlet, with the manganese sand filter material in the filter housing abundant contact, under the catalytic action of manganese dioxide composition in the manganese sand filter material, redox reaction takes place for hydrogen peroxide solution in the waste water, decomposes into water and oxygen by oneself, thereby can get rid of, produces the water mouth again and flows, accomplishes the effect of getting rid of hydrogen peroxide solution in the waste water. The embodiment of the utility model provides a hydrogen peroxide solution removing system through the catalytic action who utilizes manganese sand, with the oxidizing substance reduction such as hydrogen peroxide solution in the waste water, can effectively get rid of the effect of hydrogen peroxide solution in the waste water, the material is by the problem of oxidation when avoiding follow-up waste water retrieval and utilization to handle. The method can reduce the destructive effect of hydrogen peroxide in the wastewater on treatment materials (such as microorganisms in a subsequent wastewater biochemical treatment system, ion exchange resin in a recovered water treatment system, a reverse osmosis membrane and the like), also reduces the influence of the hydrogen peroxide on the COD measurement value of the wastewater, and improves the detection precision of the COD measurement value of the wastewater.
The embodiment of the utility model provides a hydrogen peroxide solution removing system because manganese dioxide is the catalyst, and the in-process that the redox reaction took place for hydrogen peroxide solution in the waste water can not consume, consequently, and hydrogen peroxide solution removing system is more economical. In addition, the method has obvious advantages in technical and economic indexes such as operation stability, safety, processing and manufacturing simplicity and the like.
The specific reaction formula is as follows:
through continuous operation, suspended matters in the wastewater can be attached to each filter layer of the manganese sand filter material from the water inlet to the water production port, so that the operation pressure drop can be increased. In order to reduce the operating pressure drop, the embodiment of the utility model provides a hydrogen peroxide solution removing system, still include inlet channel 1, product water pipeline 5 and drainage pipe 4. The water inlet pipeline 1 can be switched to communicate a water inlet and a water outlet; the water production pipeline 5 is communicated with the water production port, and a water production valve 13 is arranged on the water production pipeline 5; the drainage pipeline 4 is communicated with the water inlet, and a drainage valve 12 is arranged on the drainage pipeline 4.
In the operation process, the water inlet pipeline 1 is communicated with the water inlet, the water producing valve 13 is opened, and the water discharge valve 12 is closed. The wastewater flows into the manganese sand filter 3 through the water inlet and is fully contacted with the manganese sand filter material, under the catalytic action of manganese dioxide in the manganese sand filter material, hydrogen peroxide in the wastewater is subjected to oxidation-reduction reaction and is automatically decomposed into water and oxygen to be removed, and then the water flows into the water production pipeline 5 through the water production port and is discharged. The removal efficiency of the hydrogen peroxide is closely related to the contact time, and the longer the contact time is, the higher the removal efficiency is. Contact times in excess of 3 minutes are typically designed.
After continuous operation, suspended matters in the wastewater can be attached to each filter layer of the manganese sand filter material from the water inlet to the water production port. Therefore, after the manganese sand filter material runs for a certain time, the manganese sand filter material needs to be backwashed, and suspended matters are discharged out of the filter layer of the manganese sand filter material. Before backwashing, the water inlet pipeline 1 is communicated with a water production port, the drain valve 12 is opened, and the water production valve 13 is closed. The water flow reversely injects the manganese sand filter material through the water inlet pipeline 1 to bring out the dirt accumulated in the filter layer of the manganese sand filter material, and the drainage water with the dirt flows into the drainage pipeline 4 from the water inlet of the manganese sand filter 3 and is discharged. Usually, the backwashing is carried out for 10 to 15 minutes.
Through the backwashing operation, suspended matters attached to each filter layer of the manganese sand filter material can be effectively removed, and the increase of the running pressure drop is avoided.
In order to wash out the pollutants possibly remained in the filter material due to the looseness of the filter material caused by backwashing of the manganese sand filter material and ensure the filtered water quality after backwashing, the forward washing operation is preferably performed subsequently. The hydrogen peroxide removing system also comprises a communicating pipeline for communicating the drainage pipeline 4 with the water producing port, and a positive exhaust valve 14 is arranged on the communicating pipeline. The water inlet pipe 1 communicates with the water inlet, the positive displacement valve 14 is opened, and the drain valve 12 is closed. The water flow is positively injected into the manganese sand filter material through the water inlet pipeline 1 to take away the dirt accumulated in the filter layer of the manganese sand filter material, and the drainage water with the dirt flows into the communication pipeline through the water production port of the manganese sand filter 3 and is discharged through the drainage pipeline 4. Normally, the filter material is washed for 10-15 minutes.
The whole backwashing process is finished through the flushing operation.
In the hydrogen peroxide removal system provided by the embodiment of the utility model, the water producing port is positioned at the bottom of the manganese sand filter 3; the hydrogen peroxide removing system also comprises a sewage pipeline 2, the sewage pipeline 2 is communicated with the water producing port, and a sewage valve 16 is arranged on the sewage pipeline 2. Through the arrangement of the sewage discharge pipeline 2, impurities (such as pollutants and the like) deposited at the bottom in the filter shell of the manganese sand filter 3 can be discharged in the state that the sewage discharge valve 16 is opened.
The bottom of the manganese sand filter 3 can be independently provided with a drain outlet which is independent from the water inlet and the water producing port.
In order to increase the time for the wastewater to pass through the manganese sand filter material as much as possible, the water inlet is preferably arranged at the top of the manganese sand filter 3.
Preferably, the contact time of the wastewater and the manganese sand filter material is more than 3 minutes.
As shown in fig. 1, in an embodiment, the hydrogen peroxide removal system further includes: a first branch pipeline communicating the water inlet pipeline 1 with the water inlet, wherein the first branch pipeline is provided with a water inlet valve 11; and a second branch pipeline for communicating the water inlet pipeline 1 with the water producing port, wherein the second branch pipeline is provided with a reverse inlet valve 15. The operation of switching and communicating the water inlet and the water producing port of the water inlet pipeline 1 is completed through the opening and closing of the water inlet valve 11 and the reverse inlet valve 15. When the water inlet valve 11 is opened and the reverse inlet valve 15 is closed, the water inlet pipeline 1 is communicated with the water inlet; when the reverse inlet valve 15 is opened and the inlet valve 11 is closed, the inlet pipe 1 communicates with the water producing port.
In another embodiment, the hydrogen peroxide removing system further comprises a three-way valve, wherein an inlet of the three-way valve is communicated with the water inlet pipeline 1, a first outlet of the three-way valve is communicated with the water inlet, and a second outlet of the three-way valve is communicated with the water producing port. Through the switching of the three-way valve, the operation that the water inlet pipeline 1 is switched to communicate the water inlet and the water outlet is realized.
In order to improve the use safety, the manganese sand filter 3 is a pressure vessel. That is, the filter casing of the manganese sand filter 3 is a sealed casing.
Preferably, the hydrogen peroxide solution removing system further comprises pressure detection equipment for detecting the internal pressure of the manganese sand filter 3. Through setting up pressure measurement to in the detection operation pressure drop, thereby judge whether need the back flush manganese sand filter core. In this embodiment, when the operating differential pressure exceeds the initial differential pressure by 0.05MPa, the manganese sand filter needs to be backwashed.
The filter housing is a sealed cylindrical housing. The filter housing may also be provided as a housing of other shapes, such as square or trapezoidal, etc.
In order to improve the catalytic effect, the content of manganese dioxide in the manganese sand filter material is more than 40 percent.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hydrogen peroxide removal system is characterized by comprising a manganese sand filter (3), wherein the manganese sand filter (3) comprises a filter shell and a manganese sand filter material arranged in the filter shell, two openings are formed in the filter shell, and the two openings are respectively positioned on two sides of the manganese sand filter material;
one of the two openings is a water inlet, and the other opening is a water producing opening.
2. The hydrogen peroxide removal system of claim 1, further comprising:
the water inlet pipeline (1), the water inlet pipeline (1) can be switched to communicate the water inlet and the water producing port;
the water production pipeline (5), the water production pipeline (5) is communicated with the water production port, and a water production valve (13) is arranged on the water production pipeline (5);
drainage pipe (4), drainage pipe (4) with the water inlet intercommunication, be provided with drain valve (12) on drainage pipe (4).
3. The hydrogen peroxide removal system as claimed in claim 2, further comprising a communication pipeline for communicating the drainage pipeline (4) with the water production port, wherein a positive discharge valve (14) is arranged on the communication pipeline.
4. A hydrogen peroxide solution removal system as claimed in claim 2, characterized in that said water-producing port is located at the bottom of said manganese sand filter (3);
still include sewage pipes (2), sewage pipes (2) with produce the water mouth intercommunication, be provided with blowoff valve (16) on sewage pipes (2).
5. The hydrogen peroxide removal system of claim 2, further comprising:
the first branch pipeline is communicated with the water inlet pipeline (1) and the water inlet, and a water inlet valve (11) is arranged on the first branch pipeline;
and the second branch pipeline is communicated with the water inlet pipeline (1) and the water producing port, and a reverse inlet valve (15) is arranged on the second branch pipeline.
6. The hydrogen peroxide removal system as claimed in claim 2, further comprising a three-way valve, wherein an inlet of the three-way valve is communicated with the water inlet pipe (1), a first outlet of the three-way valve is communicated with the water inlet, and a second outlet of the three-way valve is communicated with the water production port.
7. A hydrogen peroxide solution removal system as claimed in claim 1, wherein said manganese sand filter (3) is a pressure vessel.
8. The hydrogen peroxide solution removal system according to claim 7, further comprising a pressure detection device for detecting the internal pressure of the manganese sand filter (3).
9. The hydrogen peroxide removal system of claim 7, wherein the filter housing is a sealed cylindrical housing.
10. The hydrogen peroxide removal system of any one of claims 1 to 9, wherein the manganese dioxide content in the manganese sand filter material is greater than 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333474.9U CN211847315U (en) | 2020-03-17 | 2020-03-17 | Hydrogen peroxide removing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333474.9U CN211847315U (en) | 2020-03-17 | 2020-03-17 | Hydrogen peroxide removing system |
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| Publication Number | Publication Date |
|---|---|
| CN211847315U true CN211847315U (en) | 2020-11-03 |
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| CN202020333474.9U Active CN211847315U (en) | 2020-03-17 | 2020-03-17 | Hydrogen peroxide removing system |
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| CN (1) | CN211847315U (en) |
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Address after: 101500 Kangbao Road, Industrial Development Zone, Miyun District, Beijing Patentee after: High Frequency (Beijing) Technology Co.,Ltd. Address before: 101500 Kangbao Road, Industrial Development Zone, Miyun District, Beijing Patentee before: TG HILYTE ENVIRONMENTAL TECHNOLOGY (BEIJING) CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |