CN108892265B - Domestic sewage multi-stage purification recovery device and purification method thereof - Google Patents
Domestic sewage multi-stage purification recovery device and purification method thereof Download PDFInfo
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- CN108892265B CN108892265B CN201810623257.0A CN201810623257A CN108892265B CN 108892265 B CN108892265 B CN 108892265B CN 201810623257 A CN201810623257 A CN 201810623257A CN 108892265 B CN108892265 B CN 108892265B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/727—Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a domestic sewage multi-stage purification and recovery device which comprises a fence pool, a filter pool and an oxidation pool which are sequentially communicated by fluid, wherein the oxidation pool comprises a catalyst ball put into the oxidation pool, catalyst ball recovery equipment and catalyst ball circulation equipment which are arranged at the top of the oxidation pool, and the catalyst ball comprises a ferromagnetic outer ball, a hollow sealed stainless steel inner ball positioned in the ferromagnetic outer ball and titanium dioxide catalyst particles. The device and the method of the invention inject the domestic sewage into the fence pool to remove the floating objects and then send the domestic sewage into the filter pool for filtering, the obtained sewage is sent into the oxidation pool to contact with the catalyst balls from the bottom of the oxidation pool and carry out oxidation reaction under the catalysis of the catalyst balls and the effect of the carried oxygen, and the catalyst balls are recycled, thus improving the sewage purification effect, and the catalyst is simple to recycle and easy to operate, thus creating a new method for purifying and recycling sewage.
Description
Technical Field
The invention relates to the technical field of sewage purification, in particular to a domestic sewage multi-stage purification and recovery device and a purification method thereof.
Background
Domestic wastewater refers to washing water discharged in daily life of residents. Only a small part of the wastewater is treated, and most of the wastewater is directly discharged into rivers and the like without being treated. Smaller cities are more serious. Feces and the like are generally not directly excreted, but are collected. The pollutant components in the wastewater are extremely complex and various, the purpose of complete purification cannot be achieved by any treatment method, and the treatment requirements can be met only by forming a treatment system by a plurality of methods.
The invention discloses a purification method of rural domestic sewage and a stepped sewage percolation purification system, which are disclosed by Chinese patent document with publication number CN103351080A, the invention discharges the domestic sewage into a sewage collection pool, and establishes the stepped sewage percolation purification system along a ramp below the sewage collection pool, the stepped sewage percolation purification system consists of multi-stage wetland percolation water purification systems arranged in a stepped or terraced field arrangement mode, each stage of wetland percolation water purification system is provided with a percolation water purification layer and a surface soil layer, wetland plants are planted in soil of the surface soil layer, and the purification of the domestic sewage can be realized after the discharged domestic sewage is subjected to bioabsorption and percolation purification treatment by the stepped sewage percolation purification system. The patent has the following advantages: the method has the advantages of simple process, low capital cost, easy management and protection, no pollution, good effect of removing the rural domestic sewage, higher ornamental value and economic value of the planted landscape plants, medicinal plants and edible plants, and suitability for purifying the domestic sewage in the rural areas in mountainous areas.
Chinese patent publication No. CN106045150A discloses an apparatus for treating domestic sewage by ultrafiltration purification method and a treatment method thereof, which comprises a domestic sewage pool, a pumping apparatus, an ultrafiltration purification tank, a blow-off pipe, a clean water pool, a tank body support and a control system; the ultrafiltration purification box is positioned on the upper surface of the box body support, a domestic sewage pool and a control system are arranged below the box body support, the domestic sewage pool is connected with the ultrafiltration purification box through pumping equipment, the drain pipe is positioned below the ultrafiltration purification box, the clean water pool is positioned on one side of the box body support, and the ultrafiltration purification box is connected with the clean water pool through a clean water pipe; the pressure pump, the water body flow meter and the electric control valve on the pumping equipment, the electric control valve on the blow-off pipe and the electric control valve on the clean water pipe are respectively connected with the control system in a wire control way. The device for treating domestic sewage by the ultrafiltration purification method and the treatment method thereof have the advantages of novel and reasonable structure, high sewage purification efficiency and wide application range.
Organic matters in the existing domestic sewage are generally treated by adopting a biological oxidation method, and are degraded by bacteria in sludge, so that the degradation speed is low and the instability is high.
Disclosure of Invention
The invention aims to provide a domestic sewage multi-stage purification and recovery device and a purification method thereof.
In order to achieve the aim, the invention provides a domestic sewage multi-stage purification and recovery device, which comprises a fence pool, a filter pool and an oxidation pool which are sequentially communicated with each other in a fluid manner, wherein the oxidation pool comprises a catalyst ball which is put into the oxidation pool, catalyst ball recovery equipment and catalyst ball circulation equipment which are arranged at the top of the oxidation pool, the catalyst ball comprises a ferromagnetic outer ball, a hollow sealed stainless steel inner ball and titanium dioxide catalyst particles which are positioned in the ferromagnetic outer ball, the ferromagnetic outer ball is provided with air holes through which air can pass, the catalyst ball recovery equipment comprises a rotating motor, a square plate which can be driven to rotate by the rotating motor, and an on-off electromagnet which is arranged outside the square plate and is used for adsorbing the catalyst ball, the on-off electromagnet is electrified when rotating to the position above the liquid level of the oxidation pool along with the square plate to adsorb the catalyst ball, and the power is cut off after the square plate rotates for 90 degrees along with the square plate so as to desorb the catalyst balls, the catalyst ball circulating equipment comprises a recovery pipeline for collecting the catalyst balls recovered by the catalyst ball recovery equipment, a first liquid pump for injecting water into the catalyst balls, and a second liquid pump for conveying the water and the catalyst balls into the bottom of the oxidation pond, and an inlet of the recovery pipeline is arranged on the side surface of the square plate so that the catalyst balls which are desorbed after the power of the on-off electromagnet for adsorbing the catalyst balls on the square plate is cut off can enter the recovery pipeline.
Optionally, a water outlet of the oxidation pond is provided with a blocking net for blocking the catalyst balls from flowing away.
Optionally, the catalyst spheres have a diameter of 1-5 cm and a bulk density of 0.7-0.9 g/cc.
The invention also provides a domestic sewage multi-stage purification and recovery method, which comprises the following steps: injecting domestic sewage into a fence pool to remove floating objects, then sending the domestic sewage into a filter pool for filtering, sending the obtained sewage into an oxidation pool to contact with a catalyst ball from the bottom of the oxidation pool and carry out oxidation reaction under the catalysis of the catalyst ball and the carried oxygen, recycling the used catalyst ball by adopting catalyst ball recycling equipment and catalyst ball circulating equipment, wherein the catalyst ball comprises a ferromagnetic outer ball, a hollow sealed stainless steel inner ball and titanium dioxide catalyst particles, the ferromagnetic outer ball is provided with air holes capable of passing through air, the catalyst ball recycling equipment comprises a rotating motor, a square plate capable of being driven by the rotating motor to rotate, and an electromagnet arranged outside the square plate and used for adsorbing the catalyst ball, and the electromagnet is switched on and off when rotating along with the square plate to the position above the liquid level of the oxidation pool to adsorb the catalyst ball, and the power is cut off after the square plate rotates for 90 degrees along with the square plate so as to desorb the catalyst balls, the catalyst ball circulating equipment comprises a recovery pipeline for collecting the catalyst balls recovered by the catalyst ball recovery equipment, a first liquid pump for injecting water into the catalyst balls, and a second liquid pump for conveying the water and the catalyst balls into the bottom of the oxidation pond, and an inlet of the recovery pipeline is arranged on the side surface of the square plate so that the catalyst balls which are desorbed after the power of the on-off electromagnet for adsorbing the catalyst balls on the square plate is cut off can enter the recovery pipeline.
Optionally, a water outlet of the oxidation pond is provided with a blocking net for blocking the catalyst balls from flowing away.
Optionally, the catalyst spheres have a diameter of 1-5 cm and a bulk density of 0.7-0.9 g/cc.
The invention has the following advantages:
the device and the method of the invention inject the domestic sewage into the fence pool to remove the floating objects and then send the domestic sewage into the filter pool for filtering, the obtained sewage is sent into the oxidation pool to contact with the catalyst balls from the bottom of the oxidation pool and carry out oxidation reaction under the catalysis of the catalyst balls and the effect of the carried oxygen, and the catalyst balls are recycled, thus improving the sewage purification effect, and the catalyst is simple to recycle and easy to operate, thus creating a new method for purifying and recycling sewage.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the apparatus of the present invention.
FIG. 2 is a schematic structural view (external view) of one embodiment of the catalyst sphere of the present invention.
FIG. 3 is a schematic structural view (partially cut away) of one embodiment of the catalyst sphere of the present invention.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-3, the present invention provides a domestic sewage multi-stage purification and recovery device, which comprises a fence pool 1, a filter pool 2 and an oxidation pool 3 which are sequentially communicated with each other, wherein the oxidation pool 3 comprises a catalyst ball 4 which is put into the oxidation pool 3, a catalyst ball recovery device 5 and a catalyst ball circulation device 6 which are arranged on the top of the oxidation pool 3, the catalyst ball 4 comprises a ferromagnetic outer ball 41, a hollow sealed stainless steel inner ball 42 and titanium dioxide catalyst particles 43 which are arranged in the ferromagnetic outer ball 41, the ferromagnetic outer ball 41 is provided with an air hole 44 which can pass through air, the catalyst ball recovery device 5 comprises a rotating motor, a square plate 51 which can be driven to rotate by the rotating motor, and an on-off electromagnet 52 which is arranged outside the square plate 51 and is used for adsorbing the catalyst ball 4, the on-off electromagnet 52 is electrified when rotating with the square plate 51 to the position above the liquid level of the oxidation pool 3 to adsorb the catalyst ball 4, and the power is cut off after the square plate 51 rotates for 90 degrees to desorb the catalyst balls 4, the catalyst ball circulating device 6 comprises a recovery pipeline 61 for collecting the catalyst balls 4 recovered by the catalyst ball recovery device 5, a first liquid pump 62 for injecting water into the catalyst balls 4, and a second liquid pump 63 for conveying the water and the catalyst balls 4 into the bottom of the oxidation pond 3, and an inlet of the recovery pipeline 61 is arranged on the side surface of the square plate 51 so that the catalyst balls 4 desorbed after the on-off electromagnet 52 which adsorbs the catalyst balls 4 on the square plate 51 is cut off can enter the recovery pipeline 61. The device and the method of the invention inject the domestic sewage into the fence pool to remove the floating objects and then send the domestic sewage into the filter pool for filtering, the obtained sewage is sent into the oxidation pool to contact with the catalyst balls from the bottom of the oxidation pool and carry out oxidation reaction under the catalysis of the catalyst balls and the effect of the carried oxygen, and the catalyst balls are recycled, thus improving the sewage purification effect, and the catalyst is simple to recycle and easy to operate, thus creating a new method for purifying and recycling sewage.
In order to prevent the catalyst balls from being carried away, as shown in fig. 1, the water outlet of the oxidation pond 3 may be provided with a blocking net 7 for blocking the catalyst balls 4 from flowing away, and the mesh of the blocking net is smaller than the size of the catalyst balls.
The catalyst balls can perform catalytic oxidation on one hand, and also have the function of carrying oxygen on the other hand, the diameter of the catalyst balls 4 can be 1-5 cm, the bulk density can be 0.7-0.9 g/cc, the catalyst balls can be recovered on the one hand through catalyst ball recovery equipment, and on the other hand, water in the catalyst balls can be thrown out and replaced by air so as to facilitate the oxidation reaction between the catalyst balls below and above and sewage. The used catalyst balls can be collected and used for removing the adsorbed organic matters in the form of aerobic roasting at high temperature, such as 350 ℃.
The invention also provides a domestic sewage multi-stage purification and recovery method, which comprises the following steps: the domestic sewage is injected into a barrier tank 1 to remove floating objects and then is sent into a filter tank 2 for filtering, the obtained sewage is sent into an oxidation tank 3 to be contacted with a catalyst ball 4 from the bottom of the oxidation tank 3 and to be subjected to oxidation reaction under the catalysis of the catalyst ball 4 and the effect of carried oxygen, the used catalyst ball 4 is recycled by adopting catalyst ball recycling equipment 5 and catalyst ball circulating equipment 6, the catalyst ball 4 comprises a ferromagnetic outer ball 41, a hollow sealed stainless steel inner ball 42 and titanium dioxide catalyst particles 43 which are positioned in the ferromagnetic outer ball 41, the ferromagnetic outer ball 41 is provided with air holes 44 which can pass through air, the catalyst ball recycling equipment 5 comprises a rotating motor, a square plate 51 which can be driven by the rotating motor to rotate, and an on-off electromagnet 52 which is arranged outside the square plate 51 and is used for adsorbing the catalyst ball 4, the switchable electromagnet 52 is powered on when rotating to the position above the liquid level of the oxidation pond 3 along with the square plate 51 to adsorb the catalyst balls 4, and is powered off after rotating 90 degrees along with the square plate 51 to desorb the catalyst balls 4, the catalyst ball circulation device 6 comprises a recovery pipeline 61 for collecting the catalyst balls 4 recovered by the catalyst ball recovery device 5, a first liquid pump 62 for injecting water into the catalyst balls 4, and a second liquid pump 63 for conveying the water and the catalyst balls 4 into the bottom of the oxidation pond 3, and an inlet of the recovery pipeline 61 is arranged on the side surface of the square plate 51 so that the catalyst balls 4 desorbed after the switchable electromagnet 52 adsorbing the catalyst balls 4 on the square plate 51 is powered off can enter the recovery pipeline 61. The device and the method of the invention inject the domestic sewage into the fence pool to remove the floating objects and then send the domestic sewage into the filter pool for filtering, the obtained sewage is sent into the oxidation pool to contact with the catalyst balls from the bottom of the oxidation pool and carry out oxidation reaction under the catalysis of the catalyst balls and the effect of the carried oxygen, and the catalyst balls are recycled, thus improving the sewage purification effect, and the catalyst is simple to recycle and easy to operate, thus creating a new method for purifying and recycling sewage.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. The domestic sewage multi-stage purification and recovery device is characterized by comprising a fence pool (1), a filter pool (2) and an oxidation pool (3) which are sequentially communicated by fluid, wherein the oxidation pool (3) comprises a catalyst ball (4) put into the oxidation pool (3), catalyst ball recovery equipment (5) and catalyst ball circulating equipment (6) which are arranged at the top of the oxidation pool (3), the catalyst ball (4) comprises a ferromagnetic outer ball (41), a hollow sealed stainless steel inner ball (42) and titanium dioxide catalyst particles (43) which are positioned in the ferromagnetic outer ball (41), the ferromagnetic outer ball (41) is provided with air holes (44) capable of passing through air, the catalyst ball recovery equipment (5) comprises a rotating motor, a plate (51) which can be driven to rotate by the rotating motor and an on-off electromagnet (52) which is arranged outside the square plate (51) and is used for adsorbing the catalyst ball (4), the electromagnet (52) which can be switched on and off is electrified when rotating to the position above the liquid level of the oxidation pond (3) along with the square plate (51) to adsorb the catalyst ball (4), and is powered off after rotating 90 degrees along with the square plate (51) to desorb the catalyst balls (4), the catalyst ball recycling device (6) comprises a recycling pipeline (61) for collecting the catalyst balls (4) recycled by the catalyst ball recycling device (5), a first liquid pump (62) for injecting water into the catalyst balls (4), and a second liquid pump (63) for conveying the water and the catalyst balls (4) into the bottom of the oxidation pond (3), the inlet of the recovery pipeline (61) is arranged on the side surface of the square plate (51) so that the catalyst balls (4) which are adsorbed on the square plate (51) and can be desorbed after the electromagnet (52) is switched off can enter the recovery pipeline (61).
2. The device according to claim 1, characterized in that the water outlet of the oxidation basin (3) is provided with a screen (7) that blocks the catalyst balls (4) from flowing away.
3. The device according to claim 1, characterized in that the catalyst spheres (4) have a diameter of 1-5 cm and a bulk density of 0.7-0.9 g/cc.
4. The multistage purification and recovery method for domestic sewage is characterized by comprising the following steps: the method comprises the steps of injecting domestic sewage into a barrier tank (1), removing floating objects, then sending the domestic sewage into a filter tank (2) for filtering, sending the obtained sewage into an oxidation tank (3) to be in contact with a catalyst ball (4) from the bottom of the oxidation tank (3), carrying out oxidation reaction under the catalysis of the catalyst ball (4) and the effect of carried oxygen, recycling the used catalyst ball (4) by adopting catalyst ball recycling equipment (5) and catalyst ball circulating equipment (6), wherein the catalyst ball (4) comprises a ferromagnetic outer ball (41), a hollow sealed stainless steel inner ball (42) and titanium dioxide catalyst particles (43), the ferromagnetic outer ball (41) is provided with air holes (44) capable of passing through air, and the catalyst ball recycling equipment (5) comprises a rotary motor and a square plate (51) which can be driven to rotate by the rotary motor, And an on-off electromagnet (52) arranged outside the square plate (51) and used for adsorbing the catalyst balls (4), wherein the on-off electromagnet (52) is electrified when rotating to the position above the liquid level of the oxidation pond (3) along with the square plate (51) to adsorb the catalyst balls (4), and is powered off after rotating for 90 degrees along with the square plate (51) to desorb the catalyst balls (4), the catalyst ball circulating equipment (6) comprises a recovery pipeline (61) used for collecting the catalyst balls (4) recovered by the catalyst ball recovery equipment (5), a first liquid pump (62) used for injecting water into the catalyst balls (4), and a second liquid pump (63) used for conveying the water and the catalyst balls (4) into the bottom of the oxidation pond (3), and an inlet of the recovery pipeline (61) is arranged on the side surface of the square plate (51) so that the electromagnet catalyst balls (4) adsorbed on the square plate (51) and desorbed after the power off (52) can enter the recovery pipeline (61) In (1).
5. A method according to claim 4, characterized in that the water outlet of the oxidation basin (3) is provided with a screen (7) that blocks the catalyst balls (4) from flowing away.
6. The method according to claim 4, characterized in that the catalyst spheres (4) have a diameter of 1-5 cm and a bulk density of 0.7-0.9 g/cc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810623257.0A CN108892265B (en) | 2018-06-15 | 2018-06-15 | Domestic sewage multi-stage purification recovery device and purification method thereof |
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| CN201810623257.0A CN108892265B (en) | 2018-06-15 | 2018-06-15 | Domestic sewage multi-stage purification recovery device and purification method thereof |
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| CN108892265A CN108892265A (en) | 2018-11-27 |
| CN108892265B true CN108892265B (en) | 2021-01-12 |
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| CN110642417A (en) * | 2019-06-17 | 2020-01-03 | 内蒙古格林森环境科技有限公司 | Rural sewage collecting, purifying and utilizing method and rural sewage collecting and purifying system |
| CN110627319A (en) * | 2019-09-21 | 2019-12-31 | 泉州华大环保科技有限公司 | Advanced oxidation sewage treatment equipment for ecological treatment |
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| KR101620819B1 (en) * | 2009-11-25 | 2016-05-23 | 코웨이 주식회사 | Apparatus for treating water using photocatalyst |
| TWI627130B (en) * | 2012-04-18 | 2018-06-21 | 美商艾克頌美孚上游研究公司 | Removing carbon nanotubes from a continuous reactor effluent |
| CN104787924A (en) * | 2015-03-13 | 2015-07-22 | 苏州科环环保科技有限公司 | Caprolactam sewage advanced treatment method using ozone catalytic oxidation |
| CN206570054U (en) * | 2017-03-14 | 2017-10-20 | 华北电力大学（保定） | It is a kind of to be easy to sewage-treatment plant that is scattered and reclaiming photochemical catalyst |
| CN108067350B (en) * | 2017-12-19 | 2020-03-03 | 中国科学院过程工程研究所 | Magnetic separation device |
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