TWI238147B - Waste water treating tank - Google Patents

Abstract

A waste water tank has a waste water inlet pipe for leading waste water to the waste water tank, and a waste water outlet pipe for allowing the waste water to flow out of the waste water tank. The waste water inlet pipe is so mounted to lead the waste water to flow into the waste water tank from above towards the lower tank is capable of preventing the waste water treating apparatus from becoming large. It also minimizes the space needed for piping to be connected to the tank, and assures that the waste water will not leak directly from the connections of the piping.

Description

1238147 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a sewage treatment tank that can be used in a sewage treatment facility in a business place or a domestic sewage treatment facility. [Conventional Technology] Among conventional sewage treatment tanks, a sewage inflow pipe through which sewage can flow into the treatment tank and a sewage outflow pipe through which sewage can flow out of the treatment tank are, for example, Japanese Patent Publication No. 10-328672. The structure of the dissolution tank (electrolytic cell) shown in FIG. That is, the outflow pipe (sewage outflow pipe) is horizontally installed on one side wall of the dissolution tank, and the inflow pipe (sewage inflow pipe) is also horizontally installed on the opposite side wall. However, in a case where the dissolution tank has the inflow pipe horizontally installed on the side wall, in order to prevent the sewage from flowing backward, the lowermost part of the inflow pipe must be higher than the uppermost part of the outflow pipe. As a result, there is a problem that the size in the height direction of the processing tank becomes large and the apparatus becomes large. In addition, since the inflow pipe system is installed on the side wall in a horizontal direction, it is necessary to consider the positional relationship of the other processing tanks connected to the inflow pipe, and bend the connecting pipe horizontally or vertically, so that the piping operation is difficult. In addition, when water leaks from the connection between the inflow pipe and the contact piping, the sewage directly leaks to the outside of the treatment tank, so there is a problem that the equipment around the connection part is affected by the sewage. For example, when the treatment tank is a dissolution tank, There is a problem that an electric component such as an electrode provided around the processing tank is immersed in water. [Problems to be Solved by the Invention] The present invention has been developed by the present invention in view of problems existing in the conventional technology. Its purpose is to provide a device that can reduce the height dimension of the device,

313361.ptd Page 6 1238147 V. Description of the invention (2) To reduce the size of the device, and to facilitate the piping work connected to this treatment tank, and to prevent sewage from leaking directly from the connection part of the piping to the outside of the treatment tank Processing tank. [Means for Solving the Problems] In order to achieve the above object, the sewage treatment tank of the present invention has a sewage inflow pipe for sewage inflow, and a sewage outflow pipe for sewage outflow, and the aforementioned sewage inflow pipe system is provided from one side. Sewage is introduced into the lower tank from above. When the structure as described above is made, as long as the opening of the sewage inflow pipe is higher than the uppermost part of the sewage outflow pipe to prevent backflow, the height of the treatment tank can be reduced compared to the conventional treatment tank. Servings. In addition, the connecting piping connected to this sewage inflow pipe is connected at the upper part of the treatment tank, so that the piping connection space of the previous step can be saved, and the piping operation can be facilitated by effectively utilizing the saved space. In addition, if a water leak occurs in the piping connection, the sewage will not leak directly to the outside of the treatment tank, but will leak to the upper part of the treatment tank. Therefore, the leaked sewage can be prevented from flowing to the outside of the treatment tank for treatment. In addition, the sewage inflow pipe may be configured such that the direction of the pipe connection portion to the outside is freely rotated in the horizontal direction. When the structure is made as described above, the horizontal direction of the piping connected to the sewage inflow pipe can be freely selected. Therefore, the piping connected to this sewage inflow pipe can be arranged directly from the upper part of the treatment tank toward the desired direction, so the sewage inflow pipe can be connected to the treatment tank in the previous step to meet the installation conditions for piping connection. Save connection space.

313361.ptd Page 7 V. Description of the invention (3) In addition, the aforementioned sewage inflow pipe can also be a flanged pipe installed on the treatment tank with the following structure; a straight pipe of Ancheng vertical pipe; This straight pipe can be attached with a flanged 90 degree elbow. The smart axis is self-aligning in the horizontal direction: In the structure of ft soil description, {only by pulling η with the sewage inflow pipe to make the sewage production direction, even the height position can be freely selected. Therefore Ϊ Connect: This saves even more connection space. * Installation conditions for piping. * Structure = to-a kind of electrolysis place with-counter electrode plate exhaust pipe 12, two] sewage under the electrode will not leak out directly in this case, as described above, sewage # The surrounding thunder is out of the treatment tank, so the surrounding installation or control panel and other electrical components will not be immersed in water and placed in the surrounding pipe of the treatment tank, but = the tank is on the side opposite to the sewage inflow pipe, and there is, Defective 前述 and in the aforementioned sewage method λ7 < 1 Sichuan has a shed part impacted by the outflow of sewage water, and then: the electrode unit formed with the sewage flowing into the treatment tank facing downward, the electrodes can also be a pair of plates A plurality of shaped electrodes are provided. A direction in which the water flow of the sewage in the treatment tank is perpendicular to the surface is configured to level the sewage water to the surface as described above, and the opposite shed portions of the electrode plates constituting the electrode unit are scattered and become the first two. Moreover, the sewage flowing into the treatment tank Therefore, the use of the electrode unit from the electric current = water flow in each part of the plurality of electrode plates can & dissolve the phosphorus capture efficiency of the metal ions dissolved in the [implementation of the invention,] uniformity, and can improve the phosphorus Its removal efficiency.

1238147 V. Description of the invention (4) The description of the present invention and the embodiment of the electrolytic cell electrolytic cell according to the embodiment of the present invention and the embodiment of the electrolytic cell are described below according to 根据 1 ® y as a sewage treatment device to FIG. 7. In addition, FIG. 1 is a plan view of the electrolytic cell in its own state when disassembled, and FIG. 2 is a plan view of the electrolytic cell according to the embodiment of the present invention when the cover is removed and repaired, and FIG. A plan view of the cover and the electrode unit. The electrode unit row of FIG. 4 is a diagram of FIG. 4. In this figure 4, the row of the electrode units on the side of the sewage outflow pipe ^ f sees the state of the side of the separator, and the figure of the sewage inflow pipe 5 shows the state of the side of the electrode unit when viewed from the second figure. In addition, Fig. 7, Fig. 7 of the sludge row 4; "View", Fig. 6 is an enlarged view of part 5 of Fig. 5. First, an enlarged view of the main sinus: part Λ will be described. Slightly constituted. Electrolytic sample # open ^ state of the electrolytic tank for the sewage treatment device, and is based on the structure of the plane shape of the rectangular shape of the box shape 1; the body with a predetermined height ^, has: The two electrode repair holes 3 丨 of the deep processing tank body, and the cover 4 (see FIG. 4) for closing the cover 3 provided on the cover body 3. In addition, the two maintenance electrode 31 with smaller sizes in the if direction have electrodes ^ 3 on the bottom surface and the peripheral portion of the electrical port portion 32 located below the maintenance cover 4 becomes: an opening portion 32 for: The direction of the long side of the planar shape of the open electrode plate 51a (the direction of the long side of the electric plate 51 below) and the long side of the processing tank body i are perpendicular to the long side of the plate 51a of the second plate 51a. An electrode unit row 5 is constituted by holding the pre-beta at this electrode J into the electrode unit 51 (see FIG. 5 of the two-square diagram of the second row). In addition, the upper part of the side wall constituting the short side of the processing tank body!

1238147 '~ ·' -------- V. Description of the invention (5) 'There is a sewage outflow pipe 1 1' It is opposite to the side wall where the sewage outflow pipe is provided, and it is near the short side wall The upper surface of the cover body 3 is provided with a sewage inflow pipe 3 5 (see FIG. 1) for allowing sewage to flow from above into the electrolytic cell below. Next, the parts of the electrolytic cell as described above will be described in more detail. The extremely soluble processing tank body 1 is a place where the sewage can flow in and the metal ions are discharged from the electricity into the sewage, and the height required for this treatment is formed. And volume. Next, as shown in FIG. 4 and the like, a sewage outflow pipe 11 that leads the pipe in a horizontal direction is provided on the upper part of one of the side walls constituting the short side, as described above. In addition, the sewage outflow pipe 丨 丨 is provided with a gasket 丨 丨 a. The lower part of the water outflow pipe 11 of this side wall constitutes an inclined surface part 12 on the center side which inclines the bottom. The inclined surface 12 also has an inclined surface 13 having a symmetrical shape on the body wall.仏 Two inclined surfaces 邛 1, 丨 3 are formed near the electrode unit, so that the upper part of the lower attached inclined surface 12, 13 in the pair of sewage generated in the electrolytic tank is formed with a shed outward ^^ 15 sheds " The function of installing the second fixed surface of the electrolytic cell below 15 and 15 (refer to Figure 4). In addition, the area of the sewage product under solid conditions is larger than that of the shed part 14 on the side of the sewage outflow pipe. LB: shed The dispersing surface of the sewage of the part 15 # is used as the surface installed on the electrolytic cell body 3; // the upper part of the shed part 15 is an acceptable cover; The aforementioned inclination: the middle portion 16 of the single row 5 and the smooth mountain shape of the same inclination angle make the mountain portion 16 and the inclined surface 12 and ^

1238147 V. Description of the invention (6) ~--^ ΐ: The central part of the room becomes the center of the electrode unit row 5, and = mud discharge port 17 is provided in this part. The sludge discharge port 17 is closed by a rubber plug 17a. The outer side of the sludge discharge port 17 is provided with a piping joint 17b through a bolt 17c and a nut 17d via washers 17e and 17f. Two parts (a total of 8 parts) that can hold this dirty ΐ electrode unit row are provided with ribs 19 for exhaust pipe fixing that also discharge ports 1 7 (see 3 =: = Ϊ 1 气 I f : Υ The i9 is provided with a notch for inserting the exhaust pipe at the upper end (figure）). In addition, & 2 5 is fixed in a state of being slightly suspended from the bottom surface (refer to the first support * foot 22. This electric = the bottom surface of the body 1 is formed with four parts of the support. In addition, the dissolution groove can also use this support foot 22 to place . 23, in order to connect the upper edge of the 41L groove body 1, not only a flange portion is formed from the end of FIG. 4, it is necessary to raise the ^ "necessary rape" cover 3 is provided on the upper part of the electrode unit row 5. Another line 2 And the flange portion 23 constituting the electrolytic cell on the upper surface thereof abuts: the tool 4 has: the bending edge 34 which is bent downward at the upper end edge of the processing tank body 1; The cover body is bolted on the processing tank body 1 34b and fixed at the place where the tank body 1 is attached to the flange portions 23, 34. In addition, the screws are attached to the body 3 before the body 3 ikR 1 c, The flat part of the small space 30 shed: above the M 5 is formed a micro-concave flow into the total 3 Γ from above and the ancient sewage inflow pipe 35 connected to this opening 30 a. This sewage 'L & Flanged piping with mounting flange below

1238147 V. Description of the invention (7) 3 "straight pipe 35b connected to the flanged pipe 35a; m is installed so that it can be & The pipe 35c is provided with a connecting pipe 35d for supplying sewage from the previous step of the 90-degree elbow 35c. ^ 1 _ The peripheral part of the water flowing into f 35 and the cover 3 and the aforementioned treatment tank body 1 have a planar shape of The front end has a thinner shape. / 丨 ^: The water inflow pipe 35 to the side opposite to the sewage inflow pipe 35 is formed with two electrode maintenance holes 31, 31 which are connected to the long side of the electrolytic cell. P &1; Orthogonal & | p ^ 1 due to electricity ^ is roughly rectangular. This electrode is only made of ^ long side, ^ plane shape @ ^ ^ ^ Maintenance hole 31 is made deeper than the cover 3 = set = Located slightly above the sewage surface in the treatment tank body 1 * There is no opening for inserting the electrode unit; Part 3 has 2 bottom electrodes for the ice recess 33. S S series: two rectangular iron plates The electrode serves as a group of two pieces of two electrode plates 51a of which are arranged at predetermined intervals. Here, the holder 51b holding the wire 51c with the holder 51b of 7 h M u 丨On the top of the device 5u, there is a line for connecting the power supply to the power supply. The terminal 5b and the electrode plate 51 & in the holder are the long side of the electrolytic cell: the long side of the plate ^-t 4 51tl ^ ΐ ΓΛ " Λ?] ^ J ZZ is formed on this electrode plate 5 fa (the side with a protruding edge ...) to enhance the accuracy of the fixed position. Page 12 31336l.ptd 1238147

1238147 • Description of the invention (9) Two pairs of electrode unit rows 5 are formed in a pair of opposite sides of a slitting electrolytic cell. = ^, The center line of this electrode unit row 5 will pass through the center of the aforementioned sludge discharge port 1 ?. In addition, in this cover body 3, the slanted surface portions 12 and 13 of the front = processing tank ^ are arranged between the electrode unit row 5 and the sewage inflow pipe 3 5 ^, and between the electrode unit row 5 and the sewage outflow pipe n. The upper part, and the electrode unit 51 is connected to the power source at a position higher than the second part = the electrode unit 51, and the terminal box 6 is connected. Each relay junction box 6 has a substantially rectangular planar shape, and four relay terminals 61 are arranged in the longitudinal direction. Furthermore, the center line benefit 6 is arranged so that its long side direction is the column direction of the electrode unit row 5 and y are arranged. Therefore, the arrangement direction of the four relay terminals 61 is the same as that of the electrode unit row. In addition, reference numeral 62 in Figs. 2 and 4 denotes a power line connected to one electrode unit 51 to the relay terminal 61. The source line / symbol 63 in FIG. 2 is used to connect the power source and the electrical structure of each relay junction box 6. The lower part of the ΓΛ pole unit row 5 is provided with two exhaust pipes 25 and the front end of the pipe 25. The transmission is performed by the air check device (refer to Figures 3 and 4). These two exhausts are connected to the outside by a connecting pipe 28. This exhaust pipe 25 is used to connect the piping 26, 2 connected to the fan 80 along the plane of the square-square j =-square wall ', that is, the gap along the opposite-opposite wall 21 (Refer to Zhao Shengdang (f according to Fig. 3 and Fig. 5), and then go up from the upper end of the lid 3 to the center 4 · Fig. 4 and Fig. 5) to the outside. Then, the middle front end is installed; connected to the blower 80, and the riser 27 on the opposite center side is provided with a blind plug 29. Therefore, the exhaust pipe 25 can be changed from 7

1238147 V. Description of the invention (10)

The riser 2 6 supplies air. Further, the two-system exhaust pipe 25 having the above-mentioned configuration and provided in correspondence with the two electrode unit rows 5 is connected to each blower 80 through a connection pipe 81 as shown in FIG. 3. In addition, the 'notch 21' is also symmetrically provided on the upper end portion of the surface opposite to the upper end portion shown in Fig. 4 (that is, the right side wall in Fig. 5). The exhaust pipe 25 is inserted into the notch 19a provided in the rib portion 19 of the processing tank body 1 as described above. Therefore, if the exhaust pipe 25 is installed in a different direction, the pipe 81 communicating with the blower 80 can also be installed through a notch on the upper side wall of the right side in FIG. 5. The working time of the maintenance cover 51 of the cover 32 is easy to use. Among one side and the pressure sensing body 3¼ which is formed, there is an electrode repair hole 3 1 for the electrode unit insertion on the bottom surface of the recess 33. Figures 1, 4, and 5 are covered by 4. This maintenance cover 4 protects people from electric shock due to the electrode sheet > sub 5 1 c, etc., and is in a closed state in normal use and an open state when the electrode unit 51 is replaced. In addition, = is fixed to the cover 3, but in order to open and close it; the container 4 has two handles 42 formed on the maintenance cover 4. ί 成 = Ϊ 2 flat parts 70 adjacent to the two corners of the two parts 33. Moreover, a sensor 1 is provided between this maintenance 盍 4 and moved by opening and closing the maintenance cover 4; 70 乂 sensor unit 7 2 all-wood switch 71 in the exhaust pipe 25 of the system; . The pressure varies depending on the action 2. The rigid unit 7 Figure 8 shows this feeling

Next, an enlarged side sectional view of part 7 of this sensor unit will be described using FIG. 8.

1238147 V. Description of the invention (11) As shown in Figure 8, the distribution box 7 9 is formed on a plane across the two corners of the adjacent maintenance cover 4 and is formed in a height direction to be accommodated in the plane 7 0 Fix the size between the covers 4. In addition, the safety switch 7 has a switch body 72 housed inside the power distribution box 79, and a magnet 73 installed on the back of the maintenance cover 4 through the cover. In the closed state, the guide switch in the switch body 72 will become 0N because of the use of the switch body 79. When the maintenance cover 4 is opened, the magnet 73 will leave from the upper part of the body: 2 ... Will the iron 73 not affect the switch body? The 2 switch-off electrode sheet has a guide switch in the switch body 72 which becomes 0FF, thereby cutting the power circuit of the 疋 51. It is for the purpose of: I. Although only one safety switch 7 1 is shown in FIG. 8, the & of the repair cover 4 shows the opening and closing status of each of the two repair covers 4, corresponding to the part of the two dimensions 4 There are 2 installed. That is, the positions corresponding to the two maintenance-symmetrical positions in the power distribution box 79, that is, relative to the center line of the cover 3, are located at positions of the same height, and the switch bodies are respectively installed. 72. The above-mentioned ^ rule corresponds to any one of the planar parts 70, which can be mounted on the switch body 2 adjacent to each other and / 2 points, at the angle of the two maintenance covers 4-phase magnet 73 ^ Magnet MC is attached to the back of the two parts (four parts in total) (see Figure 1). = In the second aspect, the pressure sensor 75 detects the following conditions: the abnormal pressure 80, the air outlet of the camp 25 is blocked, that is, the blower, the side pressure rises abnormally, but the air cannot be supplied to the sewage. The use of a diaphragm blower 80, and the diaphragm of the blower 80, the moon condition, that is, the pressure on the air supply side of the blower 80 is abnormally low, and

Page 16 1238147 V. Description of the invention (12) 2: Should be in the sewage. ⑥ In addition, the pressure sensor 75 is shown in FIG. 3 and FIG. 5. 'The exhaust pipe 25 of the two systems is connected to each of the blowers 80 separately through the pressure guide pipes 76 and 77. Plumbing 81. In addition, the pressure sensor 75 is only shown in FIG. 8, but in fact, two pressure sensors are installed in the same position, and the pressure sensors are installed at the same height with respect to the center line of the cover 3. . Next, the control circuit of the electrode unit will be described with reference to Fig. 9. In addition, FIG. 9 shows only one electrode unit row 5. However, in reality, the other electrode unit row 5 is also connected in the same manner, but it is not shown for simplicity. As shown in FIG. 9, the eight electrode units 51 arranged in the} electrode unit row 5 are connected to the power source 9 through the two relay junction boxes 6 and then through the control panel 8. In addition, two safety switches 71 and two pressure sensors 75 0M 'OFF information are input on the control panel 8. When the maintenance is detected by the safety switch of either party, when the 4 is open, or when the operation of the pressure sensor of either party is found that the air is not normally supplied from the exhaust pipe 25, the electrode unit 5 is cut off. The power supply circuit of 1. The above-mentioned electrolytic tank constitutes the following system. When used for drainage treatment of business premises, for example, as shown in Fig. 10, sewage is passed through activated sludge tank A and intermediate flow adjustment tank β. It is introduced into the electrolytic cell [, and an agglomeration sink tank d is provided on the side of the electrolytic cell C. On the other hand, in the case of a combined treatment purification tank for domestic use, it is composed of Japanese Patent Laid-Open No. 10-1 92869, The system described in Japanese Patent Application Laid-Open No. 10-258283 and Japanese Patent Application Laid-Open No. 2000-189977 are used. The following is used for drainage of a business place.

313361.ptd

1238147 V. Description of the invention (13) _ The condition of the processing system will be explained when the electrolytic cell is used from the business place. The sewage with the biological decomposition of the BOD component is firstly connected to the activated sludge tank A using the micro flow rate adjustment tank B. Then y 'and the sewage in the activated sludge tank A is passed through, the sewage system is electrolyzed and sampled to a certain amount. The sewage is introduced into the electrolytic cell C. As a result, they are dispersed, and become the upper tribe down to the shed part 15 of the treatment tank body 1 and flow to the sewage stream. A uniform water flow passes through the electrode units 5 1 and the electrode unit rows 5 face each other & 1 1. Especially in this embodiment, since it is two rows, and forms two directions substantially orthogonal to the flow direction of the sewage, the dimensions of the width direction of the electrolytic cell C to prevent the sewage from stagnating in the electricity "," can be used The C end of the electrolytic cell is adjacent to the widthwise end. As a result, it is possible to avoid a reduction in the capture efficiency, and to reduce the removal efficiency of the phosphorus of the iron ions dissolved by the electrode unit 51. The anode dissolves 2 ^ the iron ionization pole unit 5 \ the electrolysis of the ^ will come from the electrode unit, because iron ions come from the exhaust? The cathode produces tritium. In addition, divalent iron is oxidized to trivalent iron ions by degassing If. The air ejected from each row will reduce the normal structure of hydrogen: = :. In this case, the '3-valent iron ion reacts with the positive Mi of the sewage * to generate a poorly soluble phosphorus compound. Contains: fouling: due to the aeration from the exhaust pipe 25, the second substance: the agglutination and sinking tank 2 which is discharged to the next step by the outflow pipe 11 Γ, and the redundant sedimentation tank D precipitates the phosphorus-containing compounds and deposits In addition to sound. π Moreover, since air is ejected from the exhaust pipe 25 to the processing tank, the bubble-shaped bubbles are raised upward, and at the same time, the center of the processing tank body

1238147 V. Description of the invention (14) Inclined surface portions provided on the side walls of the water inflow side and the sewage outflow side 2 and 1 3, the mountain shape at the center of the bottom surface of the treatment tank body 1 in the middle of the electrode unit row 5 = points 1 6 The oblique shape is formed near the lower part of the electrode unit row 5, because ^ will be introduced into the bottom of the processing tank body 1 from around the exhaust camp 25, so that the convection in the tank C is effectively induced, and the plankton is smoothly discharged. Thing. Same, also "The long side direction of the electrode plate 51a and the long side direction of the electrolytic cell C are the plates along which the aforementioned electrolytic IC water / electrode plate 51a is located? The surface flow and the convection generated by the surface flow μ also float along the plate-like surface of the electrode plate 51a. In addition, the flow rate of this convection can be added, and the phosphorus compound can be effectively cleaned. Using this convection and aeration, the surface of the electrode plate 5 1 a can be prevented, and the sludge can be prevented from staying in the electrode unit 5 1 The electrode plate 5 1 a J avoids accidents such as electrode short circuit. In the electrolysis cell c, * * does not cause sludge to enter its own tank industry. The replacement of if requires additional discharge of sludge in electrolysis cell c as the electrode plate 51a. This degree is sufficient. Because the electrode unit of electricity is 5, the second ion is dissolved and consumed by the anode because the cathode is made of iron. In addition, in this embodiment, the anode is polarized in nature; the second is: the square electrode is eliminated, and the separators 52 are periodically separated. Therefore, each electric = is arranged between adjacent electrode units. At ΪH, the consumption is roughly equalized. False electrolysis, than the outermost == pole plywood 5U will be solved on both sides, so that electricity cannot be sought: it will gradually dissolve at the speed of 2 times like the above ϋϋ plate Consumption of 5U is equalized. In the electrolytic cell C that operates in a manner, the electrode plate is calculated in advance ...

1238147 V. Description of the invention (15)-Time consumed, and the electrode unit 51 should be replaced regularly. Open the service cover 4 at this time. Then, the power cord 62 connected to the relay terminal 61 of the junction box 6 is removed, and the fixer electrode unit 51 and the separator 52 with a substantially [shaped cross section of the fixing plate 53 are removed. In this case, the relay junction box 6 and the electrode unit 51 are connected in a substantially adjacent state, so that the wiring of the power cord 62 can be organized and the installation / removal of the electrode unit 51 can be easily performed. In addition, when replacing the electrode unit 51, if the central separator 52 is removed, the lower part of this separator 52 will be connected to the rubber plug i7a through the lock 55, so the rubber plug 17a can be pulled out at the same time. In addition, the 'electrode unit 51' is the power supply circuit of the two electrode unit row 5 when the magnet 73 mounted on the back of the maintenance cover 4 does not have an effect on the switch part in the switch body 72 when either of the maintenance covers 4 is opened. It is bound to be turned off by the action of the safety switch 71 of either party. Therefore, even if the operator touches the electrode unit 51 or the sewage in the vicinity of the electrode unit 51, there is no possibility of electric shock. The present embodiment configured as described above has the following advantageous effects. Since a small recessed space 30 is provided on the cover 3, and a sewage inflow pipe 35 connected to the opening 30a is provided, and sewage flows into the electrolytic cell C below from above, it is only necessary to make The horizontal opening of the sewage inflow pipe 35 (in this case, the connection to the opening 30a) is higher than the uppermost part of the sewage outflow pipe 11, and the sewage will not flow backward. Therefore, as compared with the past, the height of the electrolytic cell C can be reduced by the amount of the diameter of the sewage inflow pipe. Further, a connecting pipe 35d connected to this sewage inflow pipe 35 is connected to

31336Lptd Page 20 1238147 Five _Explanation of the invention (16) ______ The upper part of the electrolytic cell c is connected with the space required for adjusting the piping connection of the tank B. ^, The middle flow of the previous step: the position of the groove must be horizontal or vertical, 疋, because it can be used in other situations, save the straight bending of the piping, and assume that the piping is connected ^ Easy work. ^ It is discharged to the outside of the electrolytic cell C, and the sewage will not be leaked to prevent it from leaking out of the upper part of the flowing water tank C. Therefore, it is treated outside the electrolytic cell C although it is ::. And the broad source 9 or control panel 8 is used for the second power supply and is supplied to the electrode unit package, so it is very safe. 5 Water will not leak directly to electricity and the deficient water flows into the pipe. 3 5 The straight pipe 35b is installed on the piping core installed on the flange. The top of the solution tank C is attached by a 90 ° bend f35e. This straight pipe 35b is a connected piping connected by ^ ㈣ ㈣ ㈣ ㈣ 流 污水 污水 流 人 人 人 人 人 人 人 污水 人 污水 污水 污水 污水 污水 污水 污水 污水 污水 and sewage into the camp 々 々 趣 boat fun 100,000 and two degrees position. Therefore, the connection Π 々 々 巧 巧 连接 连接 搂 搂 and the right angle la (that is, the direction that is approximately orthogonal to the> water flow) can be provided with a plurality of ′. Therefore, the surface of the electrode plate 5U constituting the electrode unit 51 is along 3 water. Water flow, so that the flow of sewage can be carried out smoothly. Moreover, a shed portion 15 is provided below the sewage inflow pipe 35 to impact the sewage water flowing into the electrolytic cell c. Therefore, the sewage flowing into the electrolytic cell C is dispersed in the shed portion 5 and is disposed in a plurality of electrode units 5 1 becomes a uniform water flow, so the use of electricity from

1238147 V. Description of the invention (π) The phosphorus capture efficiency of the iron ions eluted from the electrode unit 51 is uniformized in the electrode unit 51 of each part, and the phosphorus removal efficiency can be improved. In addition, the present invention can be embodied as follows. This embodiment shows an example in which the electrolytic cell C is used as a sewage treatment tank, but it may be embodied as another treatment tank such as a contact aeration tank. Furthermore, the electrolytic cell C in this embodiment is an example in which the sewage outflow pipe 11 is installed in a horizontal direction, but it is not limited to this. For example, it is also possible to ascend from the bottom to the top and then pull out the opening from the bottom of the electrolytic cell C to an appropriate south degree. The electrolytic cell C in this embodiment is provided with two electrode cell rows 5, but it is not particularly limited to this, and may be one electrode cell row 5 or a small-scale one using one electrode. In addition, the exhaust pipe 25 may be a single system instead of a plurality of systems shown in this embodiment (two systems in this embodiment). For example, in the present embodiment, two-system exhaust pipes 25 are arranged below each electrode unit row 5. However, these exhaust pipes 25 may be connected to a common blower 80 to constitute an exhaust pipe of one system. . In this embodiment, an iron material is used as the electrode, but the invention is not limited to this, and other metals, such as aluminum, which can dissolve metal ions that react with phosphate ions may be used. [Effects of the Invention] Since the present invention is configured as described above, it has the following effects. According to the first to fifth items of the patent application scope of the present invention, the height of the processing tank can be reduced, and the processing tank can be miniaturized. And can reduce the connection with sewage inflow pipe

313361 Page 22 1238147 V. Description of the invention (18) The space for piping. It can also prevent sewage from leaking directly from the connection part of the connection pipe to the outside of the treatment tank. According to item 2 of the scope of patent application of the present invention, since the horizontal direction of the connecting pipe connected to the sewage inflow pipe can be freely selected, it is effective to connect the sewage inflow pipe and the treatment tank in the previous step to meet the installation conditions, and it is effective. Save connection space. According to item 3 of the scope of patent application of the present invention, since the horizontal direction and connection height position of the connecting pipe connected to the sewage inflow pipe can be freely selected, the sewage inflow pipe is connected to the treatment tank in the previous step to meet the installation conditions for connection. , You can effectively save connection space. According to item 4 of the scope of patent application of the present invention, since sewage does not leak directly to the outside of the treatment tank, it is possible to prevent the electrical components such as the power supply device or the control panel arranged around the electrolytic tank from infiltrating the water. According to item 5 of the scope of patent application for the present invention, since the sewage flowing into the treatment tank will be scattered in the shed, the capture efficiency of the phosphorus using the metal ions dissolved from the electrode unit can be uniformized in each electrode unit, and the photography can be improved. Its removal efficiency.

313361.ptd Page 23 1238147 Brief description of drawings [Simplified description of drawings] Fig. 1 is an external plan view of an electrolytic cell according to an embodiment of the present invention. Fig. 2 is a plan view of the electrolytic cell according to the embodiment of the present invention when the maintenance cover is removed. Fig. 3 is a plan view of the electrolytic cell according to the embodiment of the present invention when the maintenance cover and the electrode unit are removed. Fig. 4 is a cross-sectional view taken along the line IV-IV of Fig. 1. The row of electrode units on the side of the sewage outflow pipe is a state where the separator can be seen, and the row of electrode units on the side of the sewage inflow pipe is a state where the side of the electrode unit can be seen. .

Fig. 5 is a cross-sectional view taken along a line V-V in Fig. 2. FIG. 6 is an enlarged view of a part VI in FIG. 5. Fig. 7 is an enlarged view of a sludge discharge port of an electrolytic cell according to an embodiment of the present invention. Fig. 8 is an enlarged side sectional view of a sensor unit portion of an electrolytic cell according to an embodiment of the present invention. Fig. 9 is a control circuit diagram of an electrode unit of an electrolytic cell according to an embodiment of the present invention. Fig. 10 is an example of a system when an electrolytic cell according to an embodiment of the present invention is applied to drainage treatment in a business place. [Explanation of symbols] 3 Cover body 8 Control panel 11 Sewage outflow pipe 30 Flat section

1 Treatment tank body 5 Electrode unit row 9 Power supply 15 Shed

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313361.ptd Page 25

Claims (1)

1238147 Two: two two two "-: .. one-.l:-:, one., Articles ..., ^ V · φ- MM 91101624 The year and the month will be clear; repair 1 '" Heart 4', Gang ~ c, one,: V. .J ^ L Ershen. Please special. Li Fanpeng J… 1. A sewage treatment tank with a sewage inflow pipe (3 5) for sewage inflow; and sewage available The outflow sewage outflow pipe (1 1) is characterized in that the aforementioned sewage inflow pipe system is arranged to introduce sewage from the upper side of the sewage treatment tank to the lower part of the tank, and at the same time, in a direction orthogonal to the water flow of the sewage in the treatment tank A plurality of electrode units (5 1) composed of a pair of electrodes are provided, and the aforementioned sewage inflow pipe (3 5) is configured so that the direction of the pipe connection portion (3 5 d) with the outside can rotate freely in the horizontal direction. The sewage inflow pipe (3 5) is composed of: a flanged pipe (3 5 a) vertically installed on the treatment tank, a straight pipe (3 5 b) with the flanged pipe, and The straight pipe can be a 90 degree bent pipe (3 5 c) that can rotate freely in the horizontal direction as an axis; this sewage treatment tank is an electrode in sewage An exhaust pipe (25) is arranged at a lower position, and a shed (15) is formed below the aforementioned sewage inflow pipe to collide with the sewage water flowing into the treatment tank. 313361 Revision.ptc Page 26