KR101568173B1 - Electrolytic type wastewater treatment apparatus and Ship ballaster water purification system comprising electrolytic type wastewater treatment apparatus - Google Patents

Abstract

The present invention relates to an electrolytic water treatment apparatus comprising: a cover having a water treatment space provided between an inlet of raw water for electrolysis and an outlet of electrolyzed treated water; A plurality of electrode plates arranged alternately in the water treatment space in a water treatment space of the cover with a polarity of a cathode and an anode; And a bus bar having one side coupled to the lower cap of the cover and the other side passing through the conductive portion of each of the electrode plates and exposed to the outside through the upper cap of the cover.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic water treatment apparatus and an electrolytic type wastewater treatment apparatus including the electrolytic water treatment apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic water treatment apparatus, and more particularly, to an electrolytic apparatus for a wastewater treatment having an improved structure for enhancing treatment efficiency of contaminated water by using electrolysis.

In recent years, due to the large population growth and industrial development, there is an absolute shortage of water resources, and a large amount of sewage and industrial wastewater is discharged per day. As a result, water pollution is becoming a serious social problem.

In particular, domestic sewage, livestock wastewater, industrial wastewater, and the like are polluting water quality in public waters and small and medium rivers.

The pollutants of domestic wastewater, livestock wastewater and industrial wastewater are mainly organisms which can be decomposed by specific microorganisms. Recently, due to rapid industrial development, population increase and concentration of population of the city, The proportion of inorganic and organic components is gradually increasing.

The standard activated sludge method using the floating growth of microorganisms is widely used as a method for treating existing sewage, livestock wastewater, and industrial wastewater.

However, the conventional biological treatment method has a problem that not only the reaction speed is slow, but also the treatment efficiency is low and an additional advanced treatment facility must be provided.

Therefore, recently, physico-chemical treatment methods having higher treatment efficiency and higher rate than biological treatment methods have been studied, and a treatment method using electrolysis has been emphasized.

The above-mentioned electric treatment method will be briefly described. First, the treated water to be treated to have a higher efficiency in the electrolytic bath is put into a conditioning tank, which is a pretreatment process, and then caustic soda, an inorganic flocculant and appropriate additives (NaCl, Na2SO4) And a pre-treatment step of adjusting the conductivity by mixing.

Thereafter, the treated water having undergone the conductivity adjusting step is passed through the electrolytic bath to induce the electric reaction, and the impurities contained in the treated water due to electrocoagulation, electroflation, and electrooxidation The filtered water is discharged, and the suspended matters generated in the treatment process are transferred to the suspended-matter storage tank, and the precipitated aggregate is discharged through the discharge pipe.

There is a process of electrolyzing treatment water that has undergone a pretreatment process in an electrolytic bath, and an example of a water treatment apparatus using existing electrolysis is disclosed in Korean Patent Publication No. 10-2012-0069213 entitled " "Has been filed and published.

FIG. 1 is a representative view of a biodegradable electrolytic reactor capable of preventing current leakage, as disclosed in Japanese Patent Application Laid-Open No. 10-2012-0069213. As shown in FIG. 1, a bipolar electrolytic reactor capable of preventing current leakage has a structure including an electrolytic cell 11 forming an outer appearance and a plurality of electrode plates 12 provided inside the electrolytic bath 11, An inlet 11a and an outlet 11b for water treatment are formed in front of and behind the electrolytic bath 11.

Conventionally, an electrolytic water treatment apparatus has a plurality of electrode plates for water treatment, and electrolysis is performed while sewage passes through a channel between an electrode plate and an electrode plate.

However, in the conventional electrolytic water treatment apparatus, since there is no obstacle in the direction of the wastewater in the path of the wastewater, the wastewater is discharged to the outside before the electrolysis of the wastewater is completed, .

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a method and an apparatus for separating raw water containing contaminants by passing through the electrode plates without passing or bypassing between adjacent electrode plates, The electrolytic water treatment apparatus capable of increasing the electrolytic water treatment apparatus.

According to an aspect of the present invention, there is provided an electrolytic water treatment apparatus comprising: a cover having a water treatment space provided between an inlet of raw water for electrolysis and an outlet of electrolyzed treated water; A plurality of electrode plates arranged alternately in the water treatment space in a water treatment space of the cover with a polarity of a cathode and an anode; And a bus bar having one side connected to the lower cap of the cover and the other side passing through the conductive part of each electrode plate and exposed to the outside through the upper cap of the cover.

Wherein the cover comprises: a main body in which the electrode plates are located; A lower cap coupled to the main body and having an inlet through which the raw water flows, and to which one side of the bus bar is coupled; And an upper cap coupled to the main body and having a discharge port through which the process water is discharged and having an energizing groove for exposing a front end of a bus bar passing through the conductive parts, Do.

The other of the upper cap and the lower cap has a female screw portion coaxial with the position where the female screw portion is formed, The fastening holes through which fastening members to be fastened are formed are formed so that the upper and lower adjacent covers are connected to each other through the upper cap of the lower positioned cover and the lower cap of the upper positioned cover .

The upper cap may further include an energizing terminal having an engaging portion coupled to the energizing groove formed in the upper cap and an exposed portion exposed to the outside of the upper cap. When a plurality of the covers are arranged vertically, It is desirable to enable the electrical connection of the voltage application cable through the terminal.

According to the present invention, the electrode plates are arranged alternately in the water treatment space of the cover in the direction of the flow of the raw water with a polarity of either of a cathode and an anode alternately, And a porous filter having a porous structure through which the raw water can pass, the porous filter being coupled to the through holes of the electrode plates.

Preferably, the porous filter is one of a metal foam and a ceramic foam, which is a type of a foam structure.

In addition, the porous filter may be formed in a honeycomb structure.

In the present invention having the above-described configuration, the bus bar cooperatively penetrates the conductive parts and is electrically connected to the conductive parts, so that the plurality of electrode plates can be fixedly and electrically connected Thereby making it possible to optimize the connection structure of the electrode plate and to simplify the connection and connection.

In addition, according to the present invention, since the water treatment capacity using electrolysis can be increased, there is an effect that the water treatment system can be used in a large-capacity water treatment system.

Therefore, according to the present invention, it is possible to simplify the process of installing the voltage application cable to be provided to each water treatment apparatus even if a plurality of water treatment apparatuses are connected.

The present invention has the effect of enhancing the purification efficiency of the pollutants by passing the raw water containing pollutants through the electrode plates as they are without passing or bypassing between the adjacent electrode plates.

In addition, according to the present invention, raw water containing contaminants passes through a metal foam or ceramic foam having dense pores, thereby increasing the contact area with the raw water, thereby improving electrolysis efficiency and improving water treatment efficiency.

Further, according to the present invention, since the support portion and the current-carrying portion are formed, there is another effect that mutual lamination is possible without alignment by the connecting portion without separately providing a guide for stacking the electrode plates.

1 is an exploded perspective view showing a conventional electrolytic apparatus.
2 is an exploded cross-sectional view of an electrolytic water treatment apparatus according to an embodiment of the present invention.
3 is a partially exploded perspective view showing a state for engaging a plurality of covers employed in an embodiment of the present invention.
FIG. 4 is a side view showing a state in which a plurality of covers employed in an embodiment of the present invention are combined. FIG.
5 is a partially enlarged view showing a connection state of a current-carrying terminal employed in an embodiment of the present invention.
6 is a plan view for explaining a connection structure of a current-carrying terminal employed in an embodiment of the present invention.
FIG. 7 is a reference view showing a state where a plurality of electrolytic water treatment apparatuses according to FIG. 2 are connected in series and in parallel; FIG.
8 is an exploded perspective view showing a combination of electrode plates employed in an embodiment of the present invention.
9 is an exploded perspective view of an electrode plate employed in an embodiment of the present invention.
10 is a perspective view for explaining a state of connection of electrode plates employed in an embodiment of the present invention.
11 is a sectional view taken along the line XI-XI in Fig.

Hereinafter, an electrolytic apparatus for a sewage treatment according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is an exploded cross-sectional view of an electrolytic water treatment apparatus according to an embodiment of the present invention, FIG. 3 is a partially exploded perspective view showing a state for coupling a plurality of covers in the electrolytic water treatment apparatus according to FIG. 4 is a side view showing a state in which a plurality of covers are coupled to each other in the electrolytic water treatment apparatus according to FIG. 2, FIG. 5 is a partially enlarged view showing a connection state of the electrification terminal according to FIG. 2, FIG. 7 is a reference view showing a state in which a plurality of water treatment apparatuses are connected in series and in parallel in the electrolytic water treatment apparatus according to FIG. 2; FIG.

An electrolytic water treatment apparatus according to an embodiment of the present invention includes a cover 100, a plurality of electrode plates 200, and a bus bar 500.

The cover 100 has a water treatment space 13 provided between the inlet of the raw water for electrolysis and the outlet of the electrolyzed treated water. The cover 100 includes a main body 110, a lower cap 120, And a cap 130.

First, the main body 110 has a water treatment space 13, and the electrode plates 200 are located in the water treatment space 13.

The lower cap 120 is coupled to the main body 110 and has an inlet through which raw water flows, and one side of the bus bar 500 is coupled.

The upper cap 130 is connected to the main body 110 and has a discharge port through which the process water is discharged. The bus bar 500 penetrates through the electrode plate 200, 131 are formed.

The plurality of electrode plates 200 are arranged alternately in the water treatment space of the cover 100 with a polarity of either the cathode or the anode.

One end of the bus bar 500 is coupled to the lower cap 120 of the cover 100 and the other end of the bus bar 500 is passed through the upper cap 130 of the cover 100 Exposed.

As described above, according to the embodiment of the present invention, since the bus bar coaxially penetrates the conductive parts and is electrically connected to each conductive part, it is possible to fix and electrically connect the plurality of electrode plates without connecting or fixing them respectively Thereby making it possible to optimize the design of the connection structure of the electrode plate and simplify the connection and connection.

Hereinafter, an embodiment of the present invention in which a plurality of water treatment devices can be connected in series and / or in parallel will be described.

As shown in FIGS. 3 to 5, the upper cap 130 and the lower cap 120 are formed with a female screw 133, which can be screwed, according to an embodiment of the present invention And a fastening member 520 for fastening the fastening member 520 to the female screw portion 133 coaxially with the fastening hole 133 of the upper cap 130 and the lower cap 120. [ ) Is preferably formed.

Accordingly, in the embodiment of the present invention, the covers 100 arranged vertically adjacent to each other are disposed on the upper cap 130 of the lower cover 100 and the lower cap 120 of the cover 100 located on the upper side, So that they can be connected to each other.

At this time, it is preferable that the fastening member 520 passing through the fastening hole 123 is fastened to the lower cap 120 by the female screw 522. The upper cap 130 and the lower cap 120 are formed with the fastening holes 123 in the upper cap 130 and the lower cap 120, It is also possible to replace them.

As described above, according to the embodiment of the present invention, since the water treatment capacity using electrolysis can be increased, there is an advantage that the water treatment system can be used in a large-capacity water treatment system.

2, an engaging portion 512 coupled to the energizing groove 131 formed in the upper cap 130, an exposed portion 514 exposed to the outside of the upper cap 130, And a power supply terminal 510 having a power supply terminal (not shown).

Thus, in an embodiment of the present invention, when a plurality of covers 100 are arranged vertically, it is possible to electrically connect the voltage application cable 511 through the exposed portion 514 of the current supply terminal 510.

In this case, the plurality of electrode plates 200 are arranged alternately in the water treatment space in the water treatment space 130 of the cover 100 with the polarities of the cathodes and the anodes. Thus, as shown in FIG. 6, It is preferable to be installed so as to intersect.

Therefore, according to the embodiment of the present invention, it is possible to simplify the process of installing the voltage application cable 511 to be provided to each water treatment apparatus even if a plurality of water treatment apparatuses are connected as shown in FIG.

Hereinafter, the structure of the electrode plate and the coupling structure between the electrode plates employed in an embodiment of the present invention will be described in detail with reference to FIGS. 8 to 11. FIG.

FIG. 9 is an exploded perspective view of an electrode plate employed in an embodiment of the present invention, and FIG. 10 is a cross-sectional view of an electrode plate used in an embodiment of the present invention 11 is a cross-sectional view taken along the line XI-XI of Fig. 10

8 to 10, a plurality of electrode plates 200 according to an embodiment of the present invention may have a polarity of a cathode and an anode in the water treatment space 13 of the cover 100, And a through hole 201 penetrating through the flow direction of the raw water, respectively.

The porous filter 300 is inserted into the through holes 201 of the plurality of electrode plates 200 and is fixed to the upper ends of the electrode plates 200 through the finishing caps 220.

According to one embodiment of the present invention, the raw water containing contaminants is passed through the electrode plates 200 without passing through or bypassing the adjacent electrode plates 200, Can be increased.

It is preferable that the porous filter 300 has a porous porous foam structure. For example, the porous filter 300 may be any one of metalfoam, ceramicfoam, graphite-based foam, and graphite-based foam. desirable. That is, the raw water containing the pollutant passes through the metal foam or ceramic foam having fine pores, thereby increasing the contact area with the raw water, thereby improving the electrolysis efficiency and improving the water treatment efficiency.

In addition, the porous filter 300 may be formed in a honeycomb structure. Since the porous filter 300 has a foam structure or a honeycomb structure, the raw water containing contaminants passes through a foam or honeycomb structure filter having dense pores, It is possible to increase the contact area and increase the electrolysis efficiency, thereby improving the water treatment efficiency.

10 and 11, the electrode plate 200 according to an embodiment of the present invention includes a support portion 210, a conductive portion 230, and a connection portion 250. As shown in FIG.

The supporting portion 210 has a seating rib 211 on which the edge of the porous filter 300 is seated at a portion defining the through hole 201.

The conductive part 230 is provided on the outer side of the support part 210 and transfers the voltage applied to the electrode plate 200 to the porous filter 300 through the supporting part 210.

The connection part 250 connects the support part 210 and the conductive part 230 but the proximal end of the conductive part 230 with respect to the support part 210 contacts the center axis C of the cover 100, A gap is formed between the conductive part 230 and the support part 210 along the direction of the center axis C so as to be disposed at least at the same position as the opposite end of the support part 210. [

11, the size of the supporting part 210 among the parts disposed in the cover 100 affects the cleaning efficiency, and the conductive part 230 transmits the current to the supporting part 210, And the connection part 250 is a part where the insulator 400 is placed so that adjacent electrode plates 200 are not short-circuited to each other.

Therefore, the size of the support part 210 is required to be relatively large in the cover 100. When the space is large, the size of the support part 210 becomes small, and the efficiency of purifying contaminants is reduced.

According to an embodiment of the present invention, contrary to the conventional electrolytic water treatment apparatus, since water is treated while passing polluted water through the porous filter 300, bending stress is applied to the supporting part 210 connected to the porous filter 300 .

The supporting portion 210 and the conductive portion 230 of the electrode plate 200 are arranged in parallel with each other and the connecting portion 250 has an angle of 90 degrees or more with respect to the supporting portion 210 and the conductive portion 230, Or less between the support portion 210 and the current-carrying portion 230, as shown in FIG.

Since the supporting portion 210 and the conductive portion 230 are formed as described above, there is an effect that mutual stacking is possible without alignment by the connecting portion 250 without separately providing a guide for stacking the electrode plates 200 .

If the angle between the supporting portion 210 and the conductive portion 230 is less than 90 degrees, the supporting portion 210 is positioned closer to the central axis C than the supporting portion 210, which hinders the cleaning function by the supporting portion 210, The slope becomes gentle and the pressure resistance function that can withstand the water pressure applied along the direction of the central axis C is weakened.

Therefore, according to the embodiment of the present invention, the durability against the bending stress according to the water pressure of the contaminated water can be improved.

In an embodiment of the present invention, it is preferable that the insulator 400 is disposed at a position corresponding to a connection portion 250 between a pair of adjacent electrode plates 200 of the electrode plates 200 .

It is apparent that the present invention is not limited to the embodiments described above, but may be variously modified and modified in the technical field of the present invention.

100: cover 110: main body
120: lower cap 130: upper cap
200: electrode plate 210: support
230: conductive part 250: connection part
300: Porous filter 400: Insulator
500: bus bar 510: energizing terminal

Claims (8)

A cover having a water treatment space provided between an inlet of raw water for electrolysis and an outlet of the electrolyzed treated water; A plurality of electrode plates arranged alternately in the water treatment space in a water treatment space of the cover with a polarity of a cathode and an anode; And a bus bar having one side connected to the lower cap of the cover and the other side passing through the conductive part of each electrode plate and exposed to the outside through the upper cap of the cover,
The cover
A main body on which the electrode plates are placed;
A lower cap coupled to the main body and having an inlet through which the raw water flows, and to which one side of the bus bar is coupled; And
And an upper cap coupled to the main body and having a discharge port through which the process water is discharged and having a conductive groove through which the tip of the bus bar passing through the conductive parts is exposed to the outside,
And a conductive terminal coupled to the conductive groove formed in the upper cap and the exposed portion exposed to the outside of the upper cap, wherein when a plurality of the covers are arranged up and down, the exposed portion of the conductive terminal So that electrical connection of the voltage application cable is enabled. delete The method according to claim 1,
Wherein one of the upper cap and the lower cap is provided with a female screw portion capable of screwing, and the other one of the upper cap and the lower cap is coupled to a position where the female screw portion is formed coaxially with the female screw portion, A fastening hole through which the fastening member is passed is formed,
Wherein the covers disposed vertically adjacent to each other are connected to each other through an upper cap of a lower positioned cover and a lower cap of an upper positioned cover. delete The method according to claim 1,
Wherein the electrode plates are alternately arranged in a water treatment space of the cover in a direction coaxial with a flow direction of the raw water with a polarity of a cathode and an anode in a water treatment space, ,
And a porous filter having a porous structure to allow the raw water to pass therethrough, the porous filter being coupled to the through holes of the electrode plates. 6. The method of claim 5,
Wherein the porous filter is one of a metal foam and a ceramic foam. 6. The method of claim 5,
Wherein the porous filter has a honeycomb structure. A ship ballast water purification system comprising the electrolytic water treatment apparatus according to any one of claims 1, 3, and 7.

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