CN215480281U - Underground water demanganization and disinfection system - Google Patents
Underground water demanganization and disinfection system Download PDFInfo
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- CN215480281U CN215480281U CN202121622202.1U CN202121622202U CN215480281U CN 215480281 U CN215480281 U CN 215480281U CN 202121622202 U CN202121622202 U CN 202121622202U CN 215480281 U CN215480281 U CN 215480281U
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Abstract
The utility model provides a demanganization and disinfection system for underground water, and relates to a water treatment system. The system comprises a water supply tank, an electrolytic reactor (for placing an electrode plate), a filter column, a backwashing water tank and a pipeline; raw water flows into an electrolytic reactor from a water supply tank, electrolytic reaction is carried out in the electrolytic reactor, and reaction products are removed through a filter. In the electrolytic reactor, high manganese underground water generates strong oxidizing substances under the action of an external electric field, divalent manganese ions in the water are oxidized into quadrivalence to generate precipitate, and then the precipitate is removed by filtration. Because the underground water contains rich chloride ions, not only partial oxygen is generated in the electrolysis process, but also a large amount of chlorine gas can be generated, the chlorine gas reacts in the water to generate a large amount of hypochlorite, and the hypochlorite has strong oxidizability and can oxidize manganese ions in the water. The utility model solves the problem that manganese in rural underground water exceeds the standard, can conveniently, efficiently and stably remove manganese ions in the underground water, and has the disinfection function.
Description
Technical Field
The utility model relates to a water treatment system, in particular to a demanganization and disinfection system for underground water.
Background
In northeast and northeast China, underground water is an important water source for residents to live, and the phenomenon that the iron and manganese contents of underground water are high is common. The method for removing iron and manganese in underground water by a natural oxidation method, a contact oxidation method, a biological contact oxidation method and the like is a method which is relatively wide in practical application, the treatment effect of the existing treatment process on iron in underground water is relatively stable, but the manganese removal effect is difficult to guarantee, and the treatment difficulty of manganese-containing underground water is increased mainly because the oxidation-reduction potential of bivalent manganese ions in water is high and the bivalent manganese ions are difficult to oxidize. Two problems need to be solved to realize convenient and stable demanganization of underground water: (1) the process flow is simple, and the starting period is short; (2) the device can produce strong oxidizing environment in the operation process, and the manganese ions in the groundwater are removed by oxidation, thereby ensuring the stability of the effluent.
Disclosure of Invention
The utility model aims to provide a system for removing manganese and disinfecting underground water. Because the underground water contains rich chloride ions, not only partial oxygen is generated in the electrolysis process, but also a large amount of chlorine gas can be generated, the chlorine gas reacts in the water to generate a large amount of hypochlorite, and the hypochlorite has strong oxidizability and can oxidize manganese ions in the water. The strong oxidizing substance has an inactivation effect on bacteria and viruses, and the system has a disinfection effect while removing manganese, so that underground water is effectively purified.
The purpose of the utility model is realized by the following technical scheme:
a system for removing manganese and disinfecting underground water comprises a water supply tank, a flowmeter, a water distribution pipe, a controllable direct-current stabilized voltage power supply, the flowmeter, a filter, a backwashing water tank, an electrolytic reactor, a valve and a pipeline system; a water supply tank in the system is connected to a water distribution pipe through a flowmeter, a polar plate in a reactor is connected with a water outlet pipe of the reactor and the flowmeter, a water outlet of the reactor is connected with the flowmeter and a filter, and a backwashing water pump in a backwashing water tank is connected with a water outlet pipe of the filter through a connecting pipe; the positive and negative electrodes of the DC stabilized power supply are connected with the electrode plate at intervals through leads.
In the underground water demanganization and disinfection system, an electrode plate is placed in an electrolytic bath in the electrolytic reactor, which is an electrolytic reaction area.
The underground water demanganization and disinfection system is characterized in that the water supply tank is connected with the electrolysis reactor through a water distribution pipe.
According to the underground water demanganization and disinfection system, a power supply in the system adopts a controllable direct-current stabilized power supply.
The system operation steps are as follows: an electrode plate is arranged in an electrolytic cell in the electrolytic reactor and is an electrolytic reaction area; raw water flows into an electrolytic reactor from a water supply tank through a water distribution pipe, a power supply is switched on, the raw water flowing through an electrode plate is electrolyzed under a set current intensity, as underground water generally contains chloride ions, strong oxidizing substances such as hypochlorite, hydroxyl free radicals, oxygen and the like can be generated in the water in the electrolytic process, bivalent manganese ions in the water can react with the strong oxidizing substances to generate precipitates, and the precipitates are removed by a filter, the strong oxidizing substances have the inactivation effect on bacteria and viruses, and the demanganization and the disinfection effect simultaneously, so that the underground water is effectively purified;
the reaction process of the system is as follows:
the electrolytic cell in the electrolytic reactor is provided with an electrode plate which is a main electrolytic reaction area, raw water flows into the electrolytic reactor from a water supply tank through a water distribution pipe, a power supply is switched on, the raw water flowing through the electrode plate is electrolyzed under a set current intensity, and the main electrolytic reaction formula of the electrode is as follows because underground water generally contains chloride ions:
the chlorine ions lose electrons at the anode to generate chlorine, the chlorine then reacts in water to generate substances such as hypochlorous acid, hypochlorite radicals and the like, the chlorine, the hypochlorous acid and the hypochlorite radicals have oxidizability, the oxidizability is the hypochlorite radicals, the hypochlorous acid and the chlorine in sequence from strong to weak, the manganese ions in the water can be oxidized, and the reaction formula for removing manganese in the water is as follows:
according to the underground water demanganization and disinfection system, after raw water reacts in the electrolytic reactor, bivalent manganese ions in the water are oxidized into tetravalent manganese ions to form suspended matters and precipitates, the tetravalent manganese ions continuously flow into the filter to be filtered, and the suspended matters and the precipitates generated in the water are filtered and removed.
According to the underground water demanganization and disinfection system, strong oxidizing substances such as hypochlorite, hydroxyl radicals and oxygen are generated in water in the electrolysis process, and the strong oxidizing substances have an inactivation effect on bacteria and viruses, so that the method has a water disinfection effect while demanganization is performed.
According to the underground water demanganization and disinfection system, a power supply in the system adopts a controllable direct-current stabilized power supply, and electrolytic current control is performed according to the actual manganese content of raw water in a treatment project, so that energy is effectively saved on the basis of ensuring the water outlet effect.
The utility model has the advantages and effects that:
1. the system has simple process flow and convenient control of main body reaction.
2. The utility model has obvious demanganization effect and stable effluent quality; the utility model solves the problem that manganese in rural underground water exceeds the standard, can conveniently, efficiently and stably remove manganese ions in the underground water, and has the disinfection function.
3. Meanwhile, the utility model has the function of disinfection and sterilization to the chlorine, the hypochlorous acid and the hypochlorite generated in the water. Because the strong oxidizing substances have the inactivation effect on bacteria and viruses, the method has the functions of removing manganese and sterilizing simultaneously, and the underground water is effectively purified. The method for treating the high-manganese underground water by using the electrochemical method has the characteristics of high efficiency, convenience and definite treatment effect.
Drawings
FIG. 1 is a schematic view of the overall configuration of the system of the present invention.
The components in the figure: a water supply tank 1, a flowmeter 2, a water distribution pipe 3, a controllable direct current stabilized power supply 4, a flowmeter 5, a filter 6, a backwashing water tank 7 and an electrolytic reactor 8.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings.
The system comprises a water supply tank 1, a flowmeter 2, a water distribution pipe 3, a controllable direct current stabilized power supply 4, a flowmeter 5, a filter 6, a backwashing water tank 7 and an electrolytic reactor 8. The water supply tank 1 is connected to the water distribution pipe 3 through the flowmeter 2, water entering the reactor 8 passes through the polar plate, the water outlet pipe of the reactor is connected with the flowmeter 5, the outlet water of the reactor flows into the filter 6 through the flowmeter 5, and the backwashing water pump in the backwashing water tank 7 is connected with the water outlet pipe of the filter 6 through the connecting pipe. The positive and negative electrodes of the DC stabilized power supply 6 are connected with the electrode plate at intervals through leads. Raw water flows into the electrolytic reactor from the water supply tank 1, a power supply is turned on, the raw water flowing through the electrode plates is electrolyzed under a certain current intensity, strong oxidizing substances such as hypochlorite, hydroxyl free radicals and oxygen are generated in the water in the electrolytic process, and divalent manganese ions in the water can react with the strong oxidizing substances to generate precipitates. The chlorine ions lose electrons at the anode to generate chlorine gas, and the chlorine gas then reacts in water to generate substances such as hypochlorous acid and hypochlorite radicals. Chlorine, hypochlorous acid and hypochlorite all have oxidizability, and hypochlorite, hypochlorous acid and chlorine can all oxidize manganese ions in water from strong to weak. However, the amounts of chlorine, hypochlorous acid and hypochlorite in water are influenced by the pH value in water, and the higher the pH value in water, the larger the amount of hypochlorite, the better the manganese removal effect. After the raw water is reacted for a certain period of time in the electrolytic reactor 8, the raw water is filtered by the filter 5 to remove the precipitated substances formed in the water. After the raw water is reacted for a certain period of time in the electrolytic reactor 2, the raw water is filtered by the filter 5 to remove the precipitated substances formed in the water. After the system operates for a period of time, the phenomena that the filtering effect of the filtering column is poor and the quality of the outlet water does not reach the standard may occur, so that the filtering column needs to be backwashed regularly to ensure the filtering effect. The device mainly comprises a water supply tank, an electrolytic reactor (for placing an electrode plate), a filter column, a backwashing water tank and a pipeline system. Raw water flows into an electrolytic reactor from a water supply tank, electrolytic reaction is carried out in the electrolytic reactor, and reaction products are removed through a filter. In the electrolytic reactor, high manganese underground water generates strong oxidizing substances under the action of an external electric field, divalent manganese ions in the water are oxidized into quadrivalence to generate precipitate, and then the precipitate is removed by filtration. Because the underground water contains rich chloride ions, not only partial oxygen is generated in the electrolysis process, but also a large amount of chlorine gas can be generated, the chlorine gas reacts in the water to generate a large amount of hypochlorite, and the hypochlorite has strong oxidizability and can oxidize manganese ions in the water.
Example 1
As shown in the figure, the system comprises a water supply tank 1, a flow meter 2, a water distribution pipe 3, a controllable direct current stabilized power supply 4, a flow meter 5, a filter 6, a backwashing water tank 7, an electrolysis reactor 8, a valve and a pipeline system. The water supply tank 1 is connected to the water distribution pipe 3 through the flowmeter 2, water entering the reactor 8 passes through the polar plate, the water outlet pipe of the reactor is connected with the flowmeter 5, the outlet water of the reactor flows into the filter 6 through the flowmeter 5, and the backwashing water pump in the backwashing water tank 7 is connected with the water outlet pipe of the filter 6 through the connecting pipe. The positive and negative electrodes of the DC stabilized power supply 6 are connected with the electrode plate at intervals through leads. The electrolytic bath in the system electrolytic reactor 8 is provided with electrode plates which are the main electrolytic reaction area. Raw water flows into an electrolytic reactor 8 from a water supply tank 1 through a water distribution pipe 3, a power supply is turned on, the raw water flowing through an electrode plate is electrolyzed under a set current intensity, because underground water generally contains chloride ions, strong oxidizing substances such as hypochlorite, hydroxyl free radicals, oxygen and the like can be generated in the water in the electrolytic process, divalent manganese ions in the water can react with the strong oxidizing substances to generate precipitates which are removed through a filter 6, and because the strong oxidizing substances have the inactivation effect on bacteria and viruses, the method has the functions of removing manganese and sterilizing, and the underground water is effectively purified.
The electrolytic tank in the electrolytic reactor is provided with an electrode plate which is a main electrolytic reaction area. Raw water flows into the electrolytic reactor from the water supply tank through the water distribution pipe, a power supply is switched on, the raw water flowing through the electrode plate is electrolyzed under the set current intensity, and as the underground water generally contains chloride ions, the main electrolytic reaction formula of the electrode is as follows:
the chlorine ions lose electrons at the anode to generate chlorine gas, and the chlorine gas then reacts in water to generate substances such as hypochlorous acid and hypochlorite radicals. Chlorine, hypochlorous acid and hypochlorite all have oxidizability, and hypochlorite, hypochlorous acid and chlorine can all oxidize manganese ions in water from strong to weak. The reaction formula for removing manganese in water is as follows:
after the raw water reacts in the electrolytic reactor 8 for a period of time, the bivalent manganese ions in the water are oxidized into tetravalent suspended matters and precipitates, and the tetravalent suspended matters and the precipitates continue to flow into the filter 6 for filtration, so that the suspended matters and the precipitates generated in the water are filtered and removed.
In the electrolysis process, strong oxidizing substances such as hypochlorite, hydroxyl free radicals, oxygen and the like can be generated in the water, and the strong oxidizing substances have the inactivation effect on bacteria and viruses, so that the method has the effects of removing manganese and disinfecting the water.
The power supply in the system adopts a controllable direct current stabilized power supply, the electrolytic current can be controlled according to the actual manganese content of raw water in the treatment project, and effective energy conservation is realized on the basis of ensuring the water outlet effect.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of protection is not limited thereto. The equivalents and modifications of the present invention which may occur to those skilled in the art are within the scope of the present invention as defined by the appended claims.
Claims (4)
1. The system for removing manganese and disinfecting underground water is characterized by comprising a water supply water tank (1), a first flowmeter (2), a water distribution pipe (3), a controllable direct-current stabilized voltage power supply (4), a second flowmeter (5), a filter (6), a backwashing water tank (7), an electrolytic reactor (8), a valve and a pipeline system; a water supply tank (1) in the system is connected to a water distribution pipe (3) through a first flowmeter (2), a polar plate in a reactor (8) is connected with a reactor water outlet pipe and a second flowmeter (5), a reactor water outlet is connected with the second flowmeter (5) and a filter (6), and a backwashing water pump in a backwashing water tank (7) is connected with a water outlet pipe of the filter (6) through a connecting pipe; the positive and negative electrodes of the direct current stabilized power supply (4) are connected with the electrode plate at intervals through leads.
2. A system for demanganization and disinfection of underground water according to claim 1, characterized in that the electrolytic cells in the electrolytic reactor (8) are provided with electrode plates, being an electrolytic reaction zone.
3. A system for demanganization and disinfection of underground water according to claim 1, characterized in that the supply water tank (1) is connected to the electrolytic reactor (8) through a water distribution pipe (3).
4. The system of claim 1, wherein the power source is a regulated dc power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121622202.1U CN215480281U (en) | 2021-07-16 | 2021-07-16 | Underground water demanganization and disinfection system |
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| CN202121622202.1U CN215480281U (en) | 2021-07-16 | 2021-07-16 | Underground water demanganization and disinfection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094444A (en) * | 2022-07-27 | 2022-09-23 | 苏州热工研究院有限公司 | Electrolytic chlorine production system and method for reducing manganese ion content by using same |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094444A (en) * | 2022-07-27 | 2022-09-23 | 苏州热工研究院有限公司 | Electrolytic chlorine production system and method for reducing manganese ion content by using same |
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