CN211310965U - Electrooxidation-flocculation reactor and organic wastewater treatment system - Google Patents
Electrooxidation-flocculation reactor and organic wastewater treatment system Download PDFInfo
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- CN211310965U CN211310965U CN201921307236.4U CN201921307236U CN211310965U CN 211310965 U CN211310965 U CN 211310965U CN 201921307236 U CN201921307236 U CN 201921307236U CN 211310965 U CN211310965 U CN 211310965U
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Abstract
The utility model provides an electrooxidation-flocculation reactor and organic wastewater treatment system, this electrooxidation-flocculation reactor is applied to and handles organic wastewater, include: the device comprises a sealing cover, a cylindrical shell, two power supply connecting rods, two electrode connecting sleeves, at least two electrode plates, a water inlet and a water outlet which are arranged on the side wall of the cylindrical shell, wherein two first through holes are formed in the sealing cover; one end of each power supply connecting rod passes through a first through hole respectively and is fixed on the sealing cover; the two electrode connecting sleeves are respectively nested in the parts of the two power supply connecting rods, which penetrate out of the first through holes, and are communicated with the electrodes of an external power supply; the sealing cover is used for sealing the top of the cylindrical shell so as to form a closed space with the cylindrical shell; at least two electrode plates are mutually parallel and are alternatively fixed on the two power supply connecting rods and are positioned in the cylindrical shell. The scheme provided by the utility model effectively simplifies the structure of the electrooxidation-flocculation reactor.
Description
Technical Field
The utility model relates to a waste liquid treatment technical field, in particular to an electrooxidation-flocculation reactor and organic wastewater treatment system.
Background
For the treatment of the organic wastewater with high chroma and high toxicity, such as printing and dyeing wastewater, leather sewage and the like, various forms exist at present, such as a chemical oxidation method (Fenton oxidation, ozone oxidation) and a physical adsorption method (activated carbon adsorption and resin adsorption), but the various technologies face respective problems in the miniaturization integration process, such as high energy consumption, unchanged medicament storage and transportation, and complicated adsorbent regeneration.
At present, the electric flocculation technology gradually receives attention of scholars, and removes pollutants in water by using metal hydroxide floccules generated by soluble metal anodes (iron and aluminum) in an electrolysis process. The metal hydroxide generated by the electrolytic reaction has good flocculation and adsorption performances, and meanwhile, hydrogen separated out from the cathode can form a large amount of micro bubbles, so that the air flotation separation effect is good. In addition, the surface of the anode is subjected to electrooxidation reaction, generated ferrous ions and hydrogen precipitated from the cathode have strong reducing capability, so that the electroflocculation device also has an oxidation-reduction function, namely, the electroflocculation integrates three technologies of electrolytic flocculation, electrolytic air flotation and electrolytic oxidation-reduction, and the efficient removal of organic matters in a short time can be realized. Each electrode plate in the current common electroflocculation reactor is connected to the corresponding electrode through a lead wire, so that the connection between the electrode plate and the electrode is complicated.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an electrooxidation-flocculation reactor and organic wastewater treatment system provides a novel electrooxidation-flocculation reactor, has simplified electrooxidation-flocculation reactor's structure effectively.
In a first aspect, an electrooxidation-flocculation reactor for use in treating organic wastewater comprising: a sealing cover, a cylindrical shell, two power supply connecting rods, two electrode connecting sleeves, at least two electrode plates, a water inlet and a water outlet which are arranged on the side wall of the cylindrical shell, wherein,
two first through holes are formed in the sealing cover;
one end of each power supply connecting rod passes through a first through hole respectively and is fixed on the sealing cover;
the two electrode connecting sleeves are respectively nested in the parts of the two power supply connecting rods, which penetrate out of the first through holes, and are communicated with the electrodes of an external power supply;
the sealing cover is used for sealing the top of the cylindrical shell so as to form a closed space with the cylindrical shell;
at least two electrode plates are mutually parallel and are alternatively fixed on the two power supply connecting rods and are positioned in the cylindrical shell.
In a first possible implementation manner, in combination with the first aspect, the electrode plate is provided with a second through hole and a third through hole, wherein a diameter of the third through hole is larger than a diameter of the second through hole;
in every two adjacent electrode plates, the second through hole of one electrode plate and the third through hole of the other electrode plate penetrate through the same power supply connecting rod, the center of the second through hole and the center of the third through hole are located on the axis of the same power supply connecting rod, the power supply connecting rod is fixed on the second through hole, and the straight-line distance from the edge of the third through hole to the edge of the power supply connecting rod penetrating through the third through hole is 0.6-1 cm.
In a second possible implementation manner, with reference to the first aspect, the electro-oxidation-flocculation reactor further includes: sealing parts fixed on the two power supply connecting rods, wherein,
after one end of each power supply connecting rod is fixed on the sealing cover, the inner surface of the sealing cover on one surface of the sealing part is attached;
after the sealing cover is sealed at the top of the cylindrical shell, the edge of the sealing part is attached to the inner surface of the cylindrical shell.
In a third possible implementation manner, with reference to the first aspect, a fixed platform is arranged at the top edge of the cylindrical shell, and the fixed platform and the cylindrical shell are integrally formed;
the fixed platform is provided with at least one pair of first fixed holes which are symmetrically distributed;
a second fixing hole matched with the first fixing hole is formed in the edge area of the sealing cover;
the external fastener may be fastened to the first fixing hole and the mating second fixing hole.
In a fourth possible implementation manner, with reference to any one of the first aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, a distance between every two adjacent electrode plates is 26cm to 36 cm.
In a fifth possible implementation manner, with reference to any one of the first aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, the cylindrical shell is made of a polypropylene material, and has a thickness not less than 0.8 cm;
in a sixth possible implementation manner, with reference to any one of the first aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, the diameter of the cylindrical shell is 30 to 40cm, and the height is 120 to 150 cm.
In a seventh possible implementation manner, with reference to any one of the first aspect, the first possible implementation manner, the second possible implementation manner, and the third possible implementation manner, the cylindrical shell includes: an upper buffer zone, an electrode plate distribution zone and a lower buffer zone, wherein,
at least two electrode plates are uniformly distributed in the electrode plate distribution area;
the height of the upper buffer area is 10-15 cm; the height of the lower buffer zone is 3-5 cm.
In a second aspect, an organic wastewater treatment system, comprising: any of the above electrooxidation-flocculation reactor, flow meter, water inlet valve, circulation storage tank, circulation water valve, circulation pump, solid-liquid separator, and drain valve, wherein,
two electrode connecting sleeves of the electro-oxidation-flocculation reactor are connected to an external direct current power supply;
the flowmeter and the water inlet valve are arranged on an external water inlet pipeline communicated with the circulating storage tank;
a water outlet at the lower end of the circulating storage tank is communicated to a water inlet of the electro-oxidation-flocculation reactor through a first circulating pipeline, and a circulating water valve and a circulating pump are arranged on the first circulating pipeline;
a water inlet at the upper end of the circulating storage tank is communicated with a water outlet at the upper end of the electrooxidation-flocculation reactor through a second circulating pipeline;
a water outlet at the lower end of the electrooxidation-flocculation reactor is communicated with a water inlet of the solid-liquid separator through a water drainage pipeline, and a water drainage valve is arranged on the water drainage pipeline;
the circulating storage tank is used for storing the organic wastewater injected from the outside through the water inlet pipeline;
when the numerical value of the flowmeter reaches a target value, the water inlet valve is switched from an open state to a closed state, and the circulating pump and the circulating water valve are switched from the closed state to the open state, so that the organic wastewater in the circulating storage tank circulates between the circulating storage tank and the electrooxidation-flocculation reactor;
and when the circulating time length reaches the target time length, the drainage valve is switched from the closing state to the opening state.
In a first possible implementation manner, with reference to the first aspect, the organic wastewater treatment system further includes: a controller, wherein the controller is configured to, among other things,
the controller is respectively connected with the flowmeter, the water inlet valve, the circulating water valve, the circulating pump and the water discharge valve;
a controller for reading a value on the flow meter;
and the controller is further used for converting the water inlet valve, the circulating water valve, the circulating pump and the water discharge valve from a closed state to an open state or from the open state to the closed state.
In a second possible implementation manner, in combination with the first aspect or the first possible implementation manner, the circulation tank is made of a polypropylene/polyethylene material.
In a third possible implementation manner, in combination with the first aspect or the first possible implementation manner, the volume of the circulating storage tank is 0.3-0.5 m3。
In a fourth possible implementation manner, with reference to the first aspect or the first possible implementation manner, the volume of the solid-liquid separator is 0.5 to 1m3。
In a fifth possible implementation manner, with reference to the first aspect or the first possible implementation manner, the organic wastewater treatment system further includes: the movable support is provided with a movable support, wherein,
the electrooxidation-flocculation reactor, the circulating storage tank and the solid-liquid separator are fixed on the movable bracket.
The embodiment of the utility model provides an electrooxidation-flocculation reactor and organic waste water treatment system, this electrooxidation-flocculation reactor is applied to and handles organic waste water, include: the device comprises a sealing cover, a cylindrical shell, two power supply connecting rods, two electrode connecting sleeves, at least two electrode plates, a water inlet and a water outlet which are arranged on the side wall of the cylindrical shell, wherein two first through holes are formed in the sealing cover; one end of each power supply connecting rod passes through a first through hole respectively and is fixed on the sealing cover; the two electrode connecting sleeves are respectively nested in the parts of the two power supply connecting rods, which penetrate out of the first through holes, and are communicated with the electrodes of an external power supply; the sealing cover is used for sealing the top of the cylindrical shell so as to form a closed space with the cylindrical shell; at least two electrode plates are mutually parallel and are alternatively fixed on the two power supply connecting rods and are positioned in the cylindrical shell. The electrode plates are fixed on the two power supply connecting rods, so that the structure of the electrooxidation-flocculation reactor is simplified, and the connection mode of the electrooxidation-flocculation reactor and an external power supply is also simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 diagram of an electrooxidation-flocculation reactor according to an embodiment of the present invention;
fig. 2 is a structural diagram of a relationship between an electrode plate and a power connection rod according to an embodiment of the present invention;
fig. 3 is a structural diagram of a relationship between another electrode plate and a power connection rod according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an organic wastewater treatment system according to an embodiment of the present invention;
FIG. 5 is a flow chart of an application of the organic wastewater treatment system according to an embodiment of the present invention.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.
As shown in fig. 1, the embodiment of the present invention provides an electrooxidation-flocculation reactor, which is applied to treat organic wastewater and may include: a sealing cover 101, a cylindrical shell 102, two power supply connecting rods 103, two electrode connecting sleeves 104, at least two electrode plates 105, and a water inlet 106 and a water outlet 107 arranged on the side wall of the cylindrical shell, wherein,
two first through holes are formed in the sealing cover 101;
one end of each power connection rod 103 passes through a first through hole and is fixed on the sealing cover 101;
the two electrode connecting sleeves 104 are respectively nested in the parts of the two power supply connecting rods 103 which penetrate through the first through holes and are communicated with the electrodes of an external power supply;
a sealing cover 101 for sealing the top of the cylindrical housing 102 to form a closed space with the cylindrical housing 102;
at least two electrode plates 105 are parallel to each other and alternately fixed on two power supply connecting rods 103 and are positioned in the cylindrical shell 102.
The water inlet is positioned at the lower end of the side wall of the cylindrical shell, and the number of the water outlets is generally two, wherein one water outlet is positioned at the upper end of the side wall of the cylindrical shell, and the other water outlet is positioned at the lower end of the side wall of the cylindrical shell.
It will be appreciated that a handle may be provided on the top of the sealing cover for ease of handling the sealing cover.
The two electrode connecting sleeves are communicated with the electrode of the external power supply, namely, one electrode connecting sleeve is connected with the positive electrode of the external power supply, the other electrode connecting sleeve is connected with the negative electrode of the external power supply, and the connection is wire connection; one power supply connecting rod and the electrode plate fixed by the power supply connecting rod are used as anodes, and the other power supply connecting rod and the electrode plate fixed by the power supply connecting rod are used as cathodes. The reaction in the electro-oxidation-flocculation reactor is then: the metal hydroxide flocculating constituent generated by the soluble metal anode in the electrolytic process is utilized to remove organic pollutants in water, such as organic matters containing any one or more of aromatics, benzene series, chromogenic groups, hydrophilic groups and hydrophobic groups. On one hand, the metal hydroxide generated by the electrolytic reaction has good flocculation and adsorption performances, and on the other hand, hydrogen precipitated from the cathode can form a large amount of micro bubbles, so that the air flotation separation effect is good. Meanwhile, when the anode is made of iron, the surface of the anode is subjected to electrooxidation reaction, and the generated ferrous ions and hydrogen precipitated from the cathode have strong reducing capability, so that the electroflocculation device also has an oxidation-reduction function. The electro-oxidation-flocculation reactor integrates three technologies of electrolytic flocculation, electrolytic air flotation and electrolytic oxidation reduction, and can realize the high-efficiency removal of organic matters in a short time.
In the embodiment shown in fig. 1, the electrooxidation-flocculation reactor, applied to the treatment of organic wastewater, comprises: the device comprises a sealing cover, a cylindrical shell, two power supply connecting rods, two electrode connecting sleeves, at least two electrode plates, a water inlet and a water outlet which are arranged on the side wall of the cylindrical shell, wherein two first through holes are formed in the sealing cover; one end of each power supply connecting rod passes through a first through hole respectively and is fixed on the sealing cover; the two electrode connecting sleeves are respectively nested in the parts of the two power supply connecting rods, which penetrate out of the first through holes, and are communicated with the electrodes of an external power supply; the sealing cover is used for sealing the top of the cylindrical shell so as to form a closed space with the cylindrical shell; at least two electrode plates are mutually parallel and are alternatively fixed on the two power supply connecting rods and are positioned in the cylindrical shell. The electrode plates are fixed on the two power supply connecting rods, so that the structure of the electrooxidation-flocculation reactor is simplified, and the connection mode of the electrooxidation-flocculation reactor and an external power supply is also simplified.
The relative position relationship between the power supply connecting rod and the electrode plate can be in two forms.
The first form:
as shown in fig. 2, the electrode plate 105 is provided with second through-holes 1051 and third through-holes 1052, wherein the diameter of the third through-holes 1052 is larger than the diameter of the second through-holes 1051;
in every two adjacent electrode plates 105, the second through hole 1051 of one electrode plate 105 and the third through hole 1052 of the other electrode plate 105 penetrate through the same power supply connecting rod 103, the center of the second through hole 1051 and the center of the third through hole 1052 are located on the axis of the same power supply connecting rod 103, the power supply connecting rod 103 is fixed on the second through hole 1051, and the straight line distance from the edge of the third through hole 1052 to the edge of the power supply connecting rod 103 penetrating through the third through hole is 0.6-1 cm.
The second form:
as shown in fig. 3, the electrode plate 105 is provided with a fourth penetration hole 1053;
every two adjacent electrode plates 105 are parallel to each other, in every two adjacent electrode plates 105, one power supply connecting rod 103 penetrates through the fourth through hole 1053 of one electrode plate 105, the other power supply connecting rod 103 penetrates through the fourth through hole 1053 of the other electrode plate 105, the power supply connecting rod 103 is fixed on the fourth through hole 1053 through which the power supply connecting rod 103 penetrates, and the straight line distance from the edge of the power supply connecting rod 103 to the edge of the electrode plate 105 which does not penetrate through the power supply connecting rod is 0.6-1 cm.
In both the first form and the second form, the electrode plates are horizontally arranged side by side from top to bottom, the electrode plates are connected with the connecting rods, and the organic wastewater flows through the electrooxidation-flocculation reactor in a repeated baffling manner, so that great water turbulence and hydraulic scouring are formed, and the reaction process is strengthened.
In another embodiment of the present invention, in order to fix two power connection rods for facilitating the replacement of the power connection rods and the electrode plate, as shown in fig. 2 or fig. 3, the electrooxidation-flocculation reactor further comprises: seals 108 fixed to the two power supply connection bars, wherein,
after one end of each power connection rod 103 is fixed to the sealing cover 101, one surface of the sealing part 108 is attached to the inner surface of the sealing cover 101;
after sealing lid 101 is sealed to the top of cylindrical shell 102, the edges of seal 108 conform to the inner surface of cylindrical shell 102.
Wherein the outer edge of the seal 108 may comprise a spiral and the inner surface of the top of the cylindrical shell 102 comprises a spiral, the spiral comprised by the outer edge of the seal 108 matches the spiral comprised by the inner surface of the top of the cylindrical shell 102 to further enhance the seal.
In one embodiment of the present invention, in order to fix the sealing cover on the cylindrical housing, a fixing platform is disposed at the top edge of the cylindrical housing 102, and the fixing platform and the cylindrical housing are integrally formed; the fixed platform is vertical to the side wall of the cylindrical shell; the fixed platform is provided with at least one pair of first fixed holes which are symmetrically distributed; a second fixing hole matched with the first fixing hole is formed in the edge area of the sealing cover; the external fastener may be fastened to the first fixing hole and the mating second fixing hole.
In another embodiment of the present invention, in order to ensure the effectiveness of the electric flocculation, the distance between the two adjacent electrode plates is 26cm to 36 cm.
In another embodiment of the present invention, in order to avoid the organic wastewater from corroding the electrooxidation-flocculation reactor, and to make the electrooxidation-flocculation reactor lighter, the cylindrical shell is made of polypropylene material and has a thickness of not less than 0.8 cm.
In another embodiment of the present invention, in order to satisfy the effect of the electric flocculation while the electric oxidation-flocculation reactor exists in a skid-mounted manner, i.e., the electric oxidation-flocculation reactor is conveniently moved to replace the organic wastewater treatment environment, the diameter of the cylindrical shell is 30-40 cm, and the height is 120-150 cm.
In another embodiment of the present invention, the cylindrical housing includes: the buffer comprises an upper buffer area, a plate electrode distribution area and a lower buffer area, wherein at least two plate electrodes are uniformly distributed in the plate electrode distribution area; the height of the upper buffer area is 10-15 cm; the height of the lower buffer zone is 3-5 cm.
In addition, the pipe connected to the water inlet or the water outlet of the electro-oxidation-flocculation reactor is generally made of polypropylene or polyethylene material, and the diameter of the pipe is generally about 2 cm.
As shown in fig. 4, an embodiment of the present invention provides an organic wastewater treatment system, which includes: any of the above-described electrooxidation-flocculation reactor 401, flow meter 402, water inlet valve 403, recycle storage tank 404, recycle water valve 405, recycle pump 406, solid-liquid separator 407, and water discharge valve 408, wherein,
two electrode connecting sleeves of the electro-oxidation-flocculation reactor 401 are connected to an external direct current power supply;
the flow meter 402 and the water inlet valve 403 are arranged on an external water inlet pipeline communicated with the circulating storage tank 404;
a water outlet at the lower end of the circulating storage tank 404 is communicated to a water inlet of the electro-oxidation-flocculation reactor 401 through a first circulating pipeline, and a circulating water valve 405 and a circulating pump 406 are arranged on the first circulating pipeline;
a water inlet at the upper end of the circulating storage tank 404 is communicated with a water outlet at the upper end of the electrooxidation-flocculation reactor 401 through a second circulating pipeline;
a water outlet at the lower end of the electrooxidation-flocculation reactor 401 is communicated with a water inlet of the solid-liquid separator 407 through a water discharge pipeline, and a water discharge valve 408 is arranged on the water discharge pipeline;
the circulation storage tank 404 is used for storing organic wastewater injected from the outside through a water inlet pipeline;
when the value of the flow meter reaches a target value, the water inlet valve 403 is switched from an open state to a closed state, and the circulating pump 406 and the circulating water valve 405 are switched from the closed state to the open state, so that the organic wastewater in the circulating storage tank 404 is circulated between the circulating storage tank 404 and the electrooxidation-flocculation reactor 401;
when the period of the cycle reaches the target period, the drain valve 408 is switched from the closed state to the open state.
The organic wastewater treatment system is intermittent, namely, a batch of organic wastewater is injected into the circulating storage tank, and the organic wastewater injected into the circulating storage tank is discharged into the solid-liquid separator after being subjected to circulating electrooxidation and flocculation to realize solid-liquid separation and achieve the purpose of removing organic matters. And then injecting a new batch of organic wastewater into the circulating storage tank again, wherein the process of injecting the new batch of organic wastewater into the circulating storage tank can be carried out after all the previous batch of organic wastewater is discharged into the solid-liquid separator.
It is understood that the above process of regulating the water inlet valve, the water circulation pump and the water discharge valve can be accomplished by manual operation.
In addition, in another embodiment of the present invention, in order to realize the intellectualization of the organic wastewater treatment system, the organic wastewater treatment system further includes: a controller, wherein the controller is configured to, among other things,
the controller is respectively connected with a flow meter 402, a water inlet valve 403, a circulating water valve 405, a circulating pump 406 and a water discharge valve 408;
a controller for reading the value on the flow meter 402;
and the controller is further used for converting the water inlet valve 403, the circulating water valve 405, the circulating pump 406 and the water discharge valve 408 from the closed state to the open state or from the open state to the closed state.
The controller controls the states of the water inlet valve, the circulating water valve, the circulating pump and the water discharge valve according to the circulating time, and can be directly realized by repackaging control programs related to the existing chemical process production.
Namely, the organic wastewater is pumped into the bottom of the electrooxidation-flocculation reactor through a circulating pump, water is discharged from the top, and the circulating time is adjusted through a controller.
In order to avoid the corrosion of the circulating storage tank by the organic wastewater and simultaneously enable the circulating storage tank to have light weight, the circulating storage tank is made of polypropylene/polyethylene materials.
In addition, the organic wastewater treatment system also comprises an electrode interlocking protection system and a power polarity switching system, so that the problem that the electrode is continuously electrified under the condition of small wastewater flow is solved, wherein the power polarity switching system is used for switching the polarity of the electrode.
In another embodiment of the present invention, in order to realize the skid-mounted organic wastewater treatment system and to ensure the treatment effect on the organic wastewater, the volume of the circulation tank is 0.3-0.5 m3The volume of the solid-liquid separator is 0.5 to 1m3The organic wastewater treatment system may further include: a movable frame (not shown in the figure) to which the electrooxidation-flocculation reactor 401, the circulation tank 404 and the solid-liquid separator 407 are fixed.
Any one of the above organic wastewater treatment systems can be applied to the treatment of organic wastewater containing any one or more of aromatic, benzene-based, chromogenic group, hydrophilic group and hydrophobic group. Such as printing and dyeing wastewater, leather production wastewater and the like.
Because the electrooxidation-flocculation has the characteristics of high efficiency and short time, the intermittent operation mode of the organic wastewater treatment system can meet the treatment of a small amount of organic wastewater generated by small factories, and the organic wastewater treatment system can be moved by a mobile sled type and can be placed at a designated position according to the requirements of users, so that the use is convenient, and the construction cost of sewage treatment can be reduced.
As shown in FIG. 5, the application of the above organic wastewater treatment system may comprise the following steps:
step 501: storing externally injected organic wastewater through a circulating storage tank;
step 502: when the numerical value of the flowmeter reaches a target value, controlling the water inlet valve to be closed, and controlling the circulating pump and the circulating water valve to be opened so as to enable the organic wastewater in the circulating storage tank to circulate between the circulating storage tank and the electrooxidation-flocculation reactor;
in the step, the organic wastewater circulates between the circulating storage tank and the electrooxidation-flocculation reactor so as to ensure that organic matters in the organic wastewater can be completely flocculated as much as possible.
Step 503: when the circulation time reaches the target time, the drain valve is opened;
step 504: after all the organic wastewater stored in the circulating storage tank enters the solid-liquid separator, the drain valve is closed, and the water inlet valve is opened, so that new organic wastewater is injected into the circulating storage tank again.
The organic waste water treatment system is applied in an intermittent mode, namely, a batch of organic waste water is injected into the circulating storage tank, and the organic waste water injected into the circulating storage tank is discharged into the solid-liquid separator after being subjected to circulating electrooxidation and flocculation to realize solid-liquid separation and achieve the purpose of removing organic matters. And then injecting a new batch of organic wastewater into the circulating storage tank again, wherein the process of injecting the new batch of organic wastewater into the circulating storage tank can be carried out after all the previous batch of organic wastewater is discharged into the solid-liquid separator. Particularly, the organic wastewater treatment system can treat high-chroma and high-toxicity organic wastewater.
Example 1:
the effluent 1 of the dye wastewater biochemical system is treated by the organic wastewater treatment system, the circulation time of the wastewater between the circulation storage tank and the electrooxidation-flocculation reactor and the voltage and current input for the electrooxidation-flocculation reactor in the treatment process are shown in the table 1, and the comparison of the chromaticity, the pH and the COD of the wastewater before and after treatment is carried out, wherein the circulation time is 5min, the voltage is 4V, and the voltage is 100A.
TABLE 1
Example 2:
the organic wastewater treatment system is used for treating the effluent 2 of the dye wastewater biochemical system, the circulation time of wastewater between the circulation storage tank and the electrooxidation-flocculation reactor and the voltage and current input for the electrooxidation-flocculation reactor in the treatment process are shown in the table 2, and the comparison of the chromaticity, the pH and the COD of the wastewater before and after treatment is carried out, wherein the circulation time is 1-6 min, the voltage is 4V, and the voltage is 100A.
TABLE 2
Example 3:
the dye wastewater raw water 1 was treated by the organic wastewater treatment system described above, in which the wastewater was circulated between the circulation tank and the electrooxidation-flocculation reactor during the treatment and the voltage and current inputted to the electrooxidation-flocculation reactor, and the wastewater chromaticities, pH, and COD were paired before and after the treatment as shown in table 3, wherein the circulation time was 5min, the voltage was 4V, and the voltage was 100A.
TABLE 3
Example 4:
the dye wastewater raw water 2 was treated by the above organic wastewater treatment system, in which the wastewater cycle time between the circulation tank and the electrooxidation-flocculation reactor and the voltage and current inputted to the electrooxidation-flocculation reactor during the treatment were as shown in table 4, wherein the cycle time was 5min, the voltage was 4V, and the voltage was 100A.
TABLE 4
The above embodiments can achieve at least the following advantages:
1. the embodiment of the utility model provides an electrooxidation-flocculation reactor is applied to and handles organic waste water, include: the device comprises a sealing cover, a cylindrical shell, two power supply connecting rods, two electrode connecting sleeves, at least two electrode plates, a water inlet and a water outlet which are arranged on the side wall of the cylindrical shell, wherein two first through holes are formed in the sealing cover; one end of each power supply connecting rod passes through a first through hole respectively and is fixed on the sealing cover; the two electrode connecting sleeves are respectively nested in the parts of the two power supply connecting rods, which penetrate out of the first through holes, and are communicated with the electrodes of an external power supply; the sealing cover is used for sealing the top of the cylindrical shell so as to form a closed space with the cylindrical shell; at least two electrode plates are mutually parallel and are alternatively fixed on the two power supply connecting rods and are positioned in the cylindrical shell. The electrode plates are fixed on the two power supply connecting rods, so that the structure of the electrooxidation-flocculation reactor is simplified, and the connection mode of the electrooxidation-flocculation reactor and an external power supply is also simplified.
2. In the embodiment of the present invention, no matter whether the electrode plate is fixed in the form of one or the form of two between the electrode plate and the power connection rod, the electrode plate is arranged side by side in the up-down horizontal direction, the electrode plate is connected with the connection rod, the organic wastewater flows through the electrooxidation-flocculation reactor in the form of repeated baffling, so as to form the great water turbulence and the hydraulic scouring, and reinforce the reaction process.
3. In the embodiment of the utility model, through the sealing parts fixed on the two power supply connecting rods, after one end of each power supply connecting rod is fixed on the sealing cover, the inner surface of one surface sealing cover of the sealing part is jointed; after the sealing cover is sealed at the top of the cylindrical shell, the edge of the sealing part is attached to the inner surface of the cylindrical shell, so that two power supply connecting rods are fixed, the power supply connecting rods and the electrode plate are convenient to replace, and meanwhile, the sealing performance of the electrooxidation-flocculation reactor is further enhanced.
4. In an embodiment of the present invention, an organic wastewater treatment system includes: the device comprises an electrooxidation-flocculation reactor, a flow meter, a water inlet valve, a circulating storage tank, a circulating water valve, a circulating pump, a solid-liquid separator and a water discharge valve, wherein two electrode connecting sleeves of the electrooxidation-flocculation reactor are connected to an external direct-current power supply; the flowmeter and the water inlet valve are arranged on an external water inlet pipeline communicated with the circulating storage tank; a water outlet at the lower end of the circulating storage tank is communicated to a water inlet of the electro-oxidation-flocculation reactor through a first circulating pipeline, and a circulating water valve and a circulating pump are arranged on the first circulating pipeline; a water inlet at the upper end of the circulating storage tank is communicated with a water outlet at the upper end of the electrooxidation-flocculation reactor through a second circulating pipeline; the water outlet at the lower end of the electrooxidation-flocculation reactor is communicated with the water inlet of the solid-liquid separator through a water drainage pipeline, and a water drainage valve is arranged on the water drainage pipeline; the circulating storage tank is used for storing the organic wastewater injected from the outside through the water inlet pipeline; when the numerical value of the flowmeter reaches a target value, the water inlet valve is switched from an open state to a closed state, and the circulating pump and the circulating water valve are switched from the closed state to the open state, so that the organic wastewater in the circulating storage tank is circulated between the circulating storage tank and the electrooxidation-flocculation reactor; when the circulating time reaches the target time, the drain valve is switched from a closed state to an open state, so that the organic wastewater treatment system is an intermittent organic wastewater treatment system.
5. In the embodiment of the utility model, the controller is arranged in the organic wastewater treatment system and is respectively connected with the flow meter, the water inlet valve, the circulating water valve, the circulating pump and the water discharge valve; a controller for reading a value on the flow meter; and the controller is further used for converting the water inlet valve, the circulating water valve, the circulating pump and the water discharge valve from a closed state to an open state or from the open state to the closed state, so that the intellectualization of the organic wastewater treatment system is realized.
6. In an embodiment of the present invention, the organic wastewater treatment system may further include: and the movable support is fixed on the electrooxidation-flocculation reactor, the circulating storage tank and the solid-liquid separator, so that the organic wastewater treatment system is in a mobile skid-mounted type and is convenient for users to use.
7. Whether the embodiment of the utility model provides an electrooxidation-flocculation reactor or organic wastewater treatment system all is more miniature, and it reaches the purpose of handling organic wastewater through intermittent type formula circulation operation for electrooxidation-flocculation reactor is portable electrooxidation-flocculation reactor, and organic wastewater treatment system is for removing sled dress formula structure.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (10)
1. Electrooxidation-flocculation reactor, characterized in that, being applied to the treatment of organic waste water, comprises: a sealing cover, a cylindrical shell, two power supply connecting rods, two electrode connecting sleeves, at least two electrode plates, a water inlet and a water outlet which are arranged on the side wall of the cylindrical shell, wherein,
two first through holes are formed in the sealing cover;
one end of each power supply connecting rod penetrates through one first through hole and is fixed on the sealing cover;
the two electrode connecting sleeves are respectively nested in the parts of the two power supply connecting rods, which penetrate out of the first through holes, and are communicated with the electrodes of an external power supply;
the sealing cover is used for sealing the top of the cylindrical shell so as to form a closed space with the cylindrical shell;
the at least two electrode plates are mutually parallel and are alternately fixed on the two power supply connecting rods and are positioned in the cylindrical shell.
2. The electro-oxidation-flocculation reactor of claim 1,
the electrode plate is provided with a second perforation and a third perforation, wherein the diameter of the third perforation is larger than that of the second perforation;
in every two adjacent electrode plates, one the second perforation of electrode plate and another the third perforation of electrode plate passes same the power connecting rod, the center of second perforation with the center of third perforation is located same on the axis of power connecting rod, just the power connecting rod is fixed in on the second perforation, the third perforation edge is to passing self the straight-line distance at power connecting rod edge is 0.6 ~ 1 cm.
3. The electro-oxidation-flocculation reactor of claim 1, further comprising: a sealing part fixed on the two power supply connecting rods, wherein,
after one end of each power supply connecting rod is fixed on the sealing cover, one surface of the sealing part is attached to the inner surface of the sealing cover;
after the sealing cover is sealed at the top of the cylindrical shell, the edge of the sealing part is attached to the inner surface of the cylindrical shell.
4. The electro-oxidation-flocculation reactor of claim 1,
the top edge of the cylindrical shell is provided with a fixed platform, and the fixed platform and the cylindrical shell are integrally formed;
the fixed platform is provided with at least one pair of first fixed holes which are symmetrically distributed;
a second fixing hole matched with the first fixing hole is formed in the edge area of the sealing cover;
an external fastener may be fastened to the first fixing hole and the matching second fixing hole.
5. The electro-oxidation-flocculation reactor of any of claims 1 to 4,
the distance between every two adjacent electrode plates is 26-36 cm;
and/or the presence of a gas in the gas,
the cylindrical shell is made of polypropylene materials, and the thickness of the cylindrical shell is not less than 0.8 cm;
and/or the presence of a gas in the gas,
the diameter of the cylindrical shell is 30-40 cm, and the height of the cylindrical shell is 120-150 cm;
and/or the presence of a gas in the gas,
the cylindrical housing includes: an upper buffer zone, an electrode plate distribution zone and a lower buffer zone, wherein,
the at least two electrode plates are uniformly distributed in the electrode plate distribution area;
the height of the upper buffer area is 10-15 cm; the height of the lower buffer area is 3-5 cm.
6. An organic wastewater treatment system, comprising: the electro-oxidation-flocculation reactor of any of claims 1 to 5, a flow meter, a water inlet valve, a circulation storage tank, a circulation water valve, a circulation pump, a solid-liquid separator, and a water discharge valve,
two electrode connecting sleeves of the electro-oxidation-flocculation reactor are connected to an external direct current power supply;
the flowmeter and the water inlet valve are arranged on an external water inlet pipeline communicated with the circulating storage tank;
a water outlet at the lower end of the circulating storage tank is communicated to a water inlet of the electro-oxidation-flocculation reactor through a first circulating pipeline, and the circulating water valve and the circulating pump are arranged on the first circulating pipeline;
a water inlet at the upper end of the circulating storage tank is communicated with a water outlet at the upper end of the electrooxidation-flocculation reactor through a second circulating pipeline;
a water outlet at the lower end of the electrooxidation-flocculation reactor is communicated with a water inlet of the solid-liquid separator through a water drainage pipeline, and the water drainage valve is arranged on the water drainage pipeline;
the circulating storage tank is used for storing organic wastewater injected from the outside through the water inlet pipeline;
when the value of the flow meter reaches a target value, the water inlet valve is switched from an open state to a closed state, and the circulating pump and the circulating water valve are switched from the closed state to the open state, so that the organic wastewater in the circulating storage tank is circulated between the circulating storage tank and the electrooxidation-flocculation reactor;
and when the circulating time length reaches the target time length, the drainage valve is switched from a closed state to an open state.
7. The organic wastewater treatment system according to claim 6, further comprising: a controller, wherein the controller is configured to, among other things,
the controller is respectively connected with the flowmeter, the water inlet valve, the circulating water valve, the circulating pump and the drain valve;
the controller is used for reading a value on the flowmeter;
the controller is further used for converting the water inlet valve, the circulating water valve, the circulating pump and the water discharge valve from a closed state to an open state or from the open state to the closed state.
8. The organic wastewater treatment system according to claim 6 or 7,
the circulation tank is made of polypropylene/polyethylene material.
9. The organic wastewater treatment system according to claim 6 or 7,
the volume of the circulating storage tank is 0.3-0.5 m3；
And/or the presence of a gas in the gas,
the volume of the solid-liquid separator is 0.5-1 m3。
10. The organic wastewater treatment system according to claim 6 or 7, further comprising: the movable support is provided with a movable support, wherein,
the electrooxidation-flocculation reactor, the circulation storage tank and the solid-liquid separator are fixed on the movable support.
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| CN110451614A (en) * | 2019-08-13 | 2019-11-15 | 北京环球中科水务科技有限公司 | Electroxidation-flocculation reactor, organic wastewater treating system and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110451614A (en) * | 2019-08-13 | 2019-11-15 | 北京环球中科水务科技有限公司 | Electroxidation-flocculation reactor, organic wastewater treating system and application |
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Address after: Room 1129, 10 / F, block a, No. 8 Xueqing Road (Science and technology wealth center), Haidian District, Beijing 100085 Patentee after: Beijing globegroup Zhongke Water Technology Co.,Ltd. Address before: 100083 1205, floor 12, building a, building 1, courtyard 10, Xueqing Road, Haidian District, Beijing (Dongsheng area) Patentee before: BEIJING GWATER TECHNOLOGY CO.,LTD. |
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