JP2016123959A - Waste liquid treatment system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste liquid treatment system capable of easily taking out an adsorbent offered to adsorption treatment from a filter.SOLUTION: A waste liquid treatment system is provided with an adsorption treatment device 3 having a treatment tank 22 capable of supplying respective adsorbents for adsorptively treating foreign matter included in a treatment object liquid G offered to waste liquid treatment and agitation means 23 for dispersing the adsorbent in the treatment object liquid, a sludge filter 4 capable of supplying sludge S gathered by precipitating in a bottom part of the treatment tank 22 after adsorptively treating the treatment object liquid and having a filter medium 81 for filtration-treating this sludge and a frame 2 for installing the adsorption treatment device and the sludge filter so that the adsorption treatment device is positioned above the sludge filter, and the sludge filter is provided with filter cake takeout means 90 capable of taking out filter cake after filtering the sludge.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waste liquid treatment system suitable for separating foreign matter contained in waste liquid after use by using an adsorbent.

  Conventionally, a waste liquid processing system that adsorbs foreign matter contained in waste liquid after use by an adsorbent and separates the foreign matter together with the adsorbent has been used for various types of waste liquid processing such as coating liquid for electrophotographic photoreceptors. (For example, refer to Patent Document 1).

  In such a waste liquid treatment system, the liquid to be treated is supplied to the adsorption tank for performing the adsorption treatment, and the adsorbent is supplied to the adsorption tank, and the adsorbent is processed while stirring the liquid to be treated and the adsorbent. After performing the adsorption process to adsorb foreign matter contained in the target liquid, the treated liquid after the adsorption process is supplied from the adsorption tank to the filtration device, and the adsorbent that has adsorbed the foreign matter is separated by the filtration device. ing.

JP 2002-365819 A

  However, the conventional waste liquid treatment system has a problem that it takes time to take out the adsorbent used for the adsorption treatment.

  Therefore, there is a demand for a waste liquid treatment system that can easily take out the adsorbent used in the adsorption treatment.

  This invention is made | formed in view of such a point, and it aims at providing the waste liquid processing system which can take out easily the adsorption agent used for adsorption processing.

  In order to achieve the above-described object, the feature of the waste liquid treatment system of the present invention is that a treatment tank capable of supplying each of adsorbents for adsorbing foreign substances contained in a liquid to be treated for waste liquid treatment, and an adsorption An adsorption treatment device having a stirring means for dispersing the agent in the liquid to be treated, and sludge accumulated in the bottom of the treatment tank after the treatment liquid is adsorbed and supplied to the sludge. A sludge filtration device comprising a filter medium, and a frame for installing the adsorption treatment device and the sludge filtration device so that the adsorption treatment device is located above the sludge filtration device, The sludge filtering device is characterized by having a filter lump removing means capable of removing a lump after filtering sludge.

  By adopting such a configuration, the treatment tank of the adsorption treatment apparatus can accommodate the treatment target liquid and the adsorbent and perform the adsorption treatment, and the stirring means can adsorb the adsorbent to the treatment target liquid. Can be uniformly dispersed, so that the adsorption efficiency of foreign substances by the adsorbent can be increased. Further, the adsorbent can adsorb foreign substances contained in the liquid to be processed and can perform an adsorbing process having little influence on the liquid to be processed. Furthermore, the sludge filtration apparatus can capture and separate the adsorbent used for the adsorption treatment together with foreign substances. Furthermore, the filter lump take-out means can easily take out the filter lump after the sludge has been filtered by a simple method in which an operator attaches and removes the filtration device. Thereby, the usability improvement by an operator can be aimed at.

  Further, in the present invention, the treatment tank has a sludge discharge means for discharging sludge accumulated at the bottom of the treatment tank by natural fall for each adsorption process, and the sludge filtration device is a basket as the filter medium. A sludge filter and a filter box for accommodating the sludge filter, the filter lump taking-out means is formed by making the sludge filtration device detachable, and the frame is It can be set as the structure which is a movable trolley | bogie. And by adopting such a configuration, the sludge discharging means can discharge sludge reliably and easily with a simple configuration, and the sludge filtering device can simplify its structure, and filter cake The take-out means can be simplified in configuration, and the frame can move the apparatus to a desired place to process the liquid to be processed.

  Furthermore, in the present invention, knitted expansion and contraction for performing further filtration of the supernatant liquid collected in the treatment tank after adsorption treatment of the liquid to be treated and further filtration of the sludge filtrate that has passed through the sludge filtration device. In addition to having a bag-like filter or a cylindrical filter formed of elastic yarns, the re-filtering device is formed so that the supernatant liquid or sludge filtrate can be sucked and supplied. And by employ | adopting such a structure, a highly accurate isolation | separation can be performed.

  Furthermore, in the present invention, one suction pump is installed in the frame, and the suction pump supplies the processing target liquid to the processing tank, supplies the supernatant liquid to the refiltration apparatus, and the refiltration apparatus. It can be set as the structure currently formed so that each of supply of the sludge filtrate which passed the said sludge filtration apparatus with respect to and discharge | emission of the filtration process liquid which passed the said refiltration apparatus may be performed. And by employ | adopting such a structure, simplification of a structure, size reduction, and weight reduction can be achieved easily.

  According to the waste liquid treatment system of the present invention, there are excellent effects such as easy removal of the adsorbent used.

The schematic diagram which shows schematic structure of embodiment of the waste liquid processing system which concerns on this invention The front view which shows the principal part of FIG. The top view which shows the principal part of FIG. The right view which shows the principal part of FIG. The left view which shows the principal part of FIG. Sectional drawing which shows the principal part of the refiltration apparatus of FIG.

  The present invention will be described below with reference to embodiments shown in the drawings.

  1 to 6 show an embodiment of a waste liquid treatment system according to the present invention.

  The waste liquid treatment system 1 of the present embodiment (hereinafter simply referred to as “system 1”) uses a waste liquid of a water-based paint after being used for painting a vehicle at a painting booth as a processing target liquid G (hereinafter referred to as “stock solution G”). And a small movable unit used for the waste liquid treatment of the stock solution G. In addition, the operation and movement of the system 1 in the present embodiment are performed by an operator.

  As shown in FIG. 1, the system 1 of the present embodiment has an adsorption treatment device 3, a sludge filtration device 4, a refiltration device 5, and a movable carriage 2 (hand carriage 2) as a frame. A suction pump 6 is provided.

  The carriage 2 is for transporting the system 1 and has a base plate 11 made of metal, for example, as shown in FIGS. The base plate 11 serves as a base of the lower part, and is formed in a planar rectangular shape that is long in the moving direction (left-right direction in FIG. 3). Then, casters 12 as moving wheels are respectively attached to the lower portions of the four corners of the base plate 11. Of the four casters 12, the two casters 12 arranged on the leading side in the movement direction (left side in FIG. 2) are fixed wheels, and the two casters 12 arranged on the trailing side in the movement direction (right side in FIG. 2). The two casters 12 are swivelable free wheels. Further, a foot stopper 13 (floor lock) for simply fixing the position of the carriage 2 is attached to an intermediate portion between the two casters 12 which are free wheels.

  A handle 14 that is gripped and operated by an operator when the carriage 2 is traveling is attached to the rear side end of the base plate 11. The handle 14 is formed, for example, by bending a metal pipe, and a grip portion 15 that extends horizontally is provided at the top. The grip portion 15 has a height position of, for example, about 830 mm so that it can be gripped and operated by an operator.

  On the upper surface of the base plate 11, a processing base 16 formed in a table shape for installing the adsorption processing device 3 and a filtration mounting for detachably mounting the sludge filtering device 4 at predetermined positions. A mounting base 17, a filtration mounting base 18 for mounting the refiltration device 5, and a pump mounting base 19 for mounting the suction pump 6 are arranged. Further, the filtration mounting table 17 is disposed below the central portion of the processing platform 16.

  The adsorption processing apparatus 3 is for adsorbing and treating foreign matters such as coating soot contained in the stock solution G, and has a treatment tank 22 and a stirring means 23.

  The said processing tank 22 is for accommodating the comparatively small volume undiluted solution G of about 50L (liter), for example, The tank main body 25 formed in the bottomed cylinder shape, and the upper opening of this tank main body 25 are provided. And a tank lid 26 for covering.

  The tank body 25 is formed in a cylindrical shape having an outer diameter of about 430 mm, for example, and its bottom is formed in an inverted conical shape convex downward. A sludge discharge pipe 28 for discharging the sludge S (FIG. 1) that settles on the bottom of the tank body 25 by the adsorption process is disposed at the center of the bottom with its tip facing downward. The front end (lower end) of the sludge discharge pipe 28 is connected to an inlet of a first stop valve 29 including a manually operated gate valve for opening and closing a discharge flow path of the sludge S. The first stop valve A sludge outlet pipe 30 for guiding the sludge S discharged from the treatment tank 22 to the sludge filtration device 4 is connected to the outlet 29. A plurality of, in the present embodiment, three tank support legs 31 are provided on the cylindrical side wall of the tank body 25. The lower ends of these tank support legs 31 are attached to the upper surface of the processing stand 16. Thereby, the processing tank 22 is installed in the upper part of the trolley | bogie 2. As shown in FIG.

  By the sludge discharge pipe 28, the first stop valve 29 and the sludge outlet pipe 30, the sludge discharge means 32 for discharging the sludge S that has been adsorbed and coagulated and settled at the bottom of the treatment tank 22 of this embodiment by natural fall for each treatment. Is configured.

  The tank lid 26 is for covering the upper opening of the tank body 25. The tank lid 26 is entirely composed of a central lid portion 35 and a pair of end lid portions 36 having a flat circular shape disposed on both sides thereof. It is formed so that the circle is divided into three in parallel. The pair of end lid portions 36 are formed symmetrically with the axis of the processing tank 22 as the axis of symmetry. The central lid 35 and the pair of end lids 36 can be opened and closed by two (total four) hinges 37 arranged at intervals along the horizontal direction in the present embodiment. It is connected to the.

  The outer diameter dimension of the central lid portion 35 is the same as the outer diameter dimension of the tank body portion. The left and right end portions on the upper surface of the central lid portion 35 are detachably fastened to the tank body 25 by clamps 38, respectively. A lid flange 39 having a planar arc shape formed larger in diameter than the outer diameter of the tank body 25 is formed on the outer periphery of the end lid portion 36. The center part in the circumferential direction of the outer peripheral surface of the lid flange 39 is detachably attached to the tank body 25 by a one-touch with a tank snap lock 40 (snap catch). Furthermore, a lid opening / closing handle 41 is provided on the upper surface of the end lid portion 36 to be used for opening and closing the end lid portion 36 by an operator. Then, after the operator opens the tank snap lock 40, the end lid 36 can be opened by operating the lid opening / closing handle 41 upward. As a result, a part of the upper opening of the tank main body 25 located below the end lid portion 36 is exposed to the outside so that the tank main body 25 and thus the inside and outside of the treatment tank 22 can communicate with each other. In the present embodiment, by opening the end lid portion 36 shown on the right side of FIG. 2 in the direction of the arrow, a predetermined amount of adsorbent can be introduced into the processing tank 22 by the measuring cup 45 or the like by the operator's hands. (Fig. 1).

  Here, as the adsorbent used in the system 1 of the present embodiment, a porous ceramic powder obtained by sintering a natural mineral as a main raw material and a material ionized into a cation and an anion with a glass as a binder is used. ing. This adsorbent can adsorb and bind foreign substances contained in the stock solution G and rapidly form agglomerates (floc) to form sludge. An example of this adsorbent is CERADECON (registered trademark). The amount of adsorbent input to the stock solution G is preferably about 0.1 to 5.0% by volume of the stock solution G.

  A stock solution supply pipe 47 that penetrates the central lid 35 in the thickness direction is attached to one end side of the central lid portion 35, and the central lid portion 35 penetrates in the thickness direction to the other end side. A supernatant liquid suction tube 48 is attached so as to be movable in the vertical direction (FIG. 3). As shown in FIG. 1, the lower end of the stock solution supply pipe 47 is disposed above the liquid level inside the processing tank 22, and the lower end of the supernatant liquid suction pipe 48 is the liquid level inside the processing tank 22. Located below. For convenience of explanation, the positions of the stock solution supply pipe 47 and the supernatant liquid suction pipe 48 in FIG. 1 are shifted to positions different from actual positions.

  As shown in FIG. 1, the outlet of the second stop valve 51 including a manually operated gate valve is connected to the upper end of the stock solution supply pipe 47 protruding above the processing tank 22. One end of the stock solution supply hose 52 is detachably connected to the inlet of the second stop valve 51 via a hose joint 53 (hose connector), and the other end of the stock solution supply hose 52 is manually operated. One of the two output ports of the first switching valve 54 composed of a three-way valve such as a directional ball valve is detachably connected via a hose joint 53. The first switching valve 54 includes a flow path for fluid discharged from the discharge port of the suction pump 6 toward the processing tank 22 and a processing liquid storage tank 60 for storing the filtered processing liquid C that has passed through the refiltration device 5. It is for switching to the flow path which goes to. Therefore, the input port of the first switching valve 54 is connected to the discharge port of the suction pump 6, and one end of the processing liquid discharge hose 55 is connected to the other of the two output ports of the first switching valve 54. A hose joint 53 is detachably connected. When the first switching valve 54 supplies the stock solution G to the processing tank 22 during the operation of the system 1, one output port communicates with the input port, and the filtration process has passed through the refiltration device 5. When discharging the liquid C, the operator operates the other output port and the input port so as to communicate with each other. Further, one end of a discharge pipe 56 is detachably connected to the other end of the treatment liquid discharge hose 55 via a hose joint 53. The discharge pipe 56 is disposed inside the processing liquid storage tank 60 by an operator when the system 1 is in operation.

  The upper end of the supernatant liquid suction pipe 48 protruding above the processing tank 22 is connected to the inlet of a third stop valve 61 such as a manually operated gate valve. One end of a supernatant liquid discharge hose 62 is detachably connected to the outlet of the third stop valve 61 via a hose joint 53, and the other end of the supernatant liquid discharge hose 62 is a manually operated three-way valve. Is detachably connected to one of the two input ports of the second switching valve 63 comprising the hose joint 53. The second switching valve 63 is for switching the fluid supplied to the refiltration device 5 between the supernatant liquid T and the sludge filtrate F that has passed through the sludge filtration device 4. For this reason, the output port of the 2nd switching valve 63 is connected to the inflow pipe 112 mentioned later of the refiltration apparatus 5, and the other of the two input ports of the 2nd switching valve 63 is the filtrate discharge hose mentioned later. The other end of 88 is detachably connected via a hose joint 53. When the second switching valve 63 operates the system 1 and supplies the supernatant T to the refiltration device 5, one input port communicates with the output port and passes through the sludge filtration device 4. When supplying the sludge filtrate F to the refiltration apparatus 5, it is operated by the operator so that the other input port and the output port communicate with each other.

  The stirring means 23 is for dispersing the adsorbent in the stock solution supplied to the treatment tank 22, and in this embodiment, an air blowing type device that blows and stirs air (compressed air) into the stock solution. It is used. As shown in FIGS. 1 to 5, the stirring means 23 includes a stirring air supply pipe 71 disposed in the vertical direction (vertical direction) at the center of the processing tank 22. The stirring air supply pipe 71 is disposed so as to penetrate the central portion of the central lid portion 35, and a substantially central portion in the length direction thereof is movable in the vertical direction to the central portion of the upper surface of the central lid portion 35. Is attached. Further, the lower end of the stirring air supply pipe 71 is disposed so as to be submerged below the liquid level of the stock solution G accommodated in the processing tank 22, and the stirring air supply pipe 71 submerged below this liquid level In the lower part, a plurality of air injection nozzles 72 in the present embodiment for injecting air are provided. The base ends of these air injection nozzles 72 are attached to the lower part of the stirring air supply pipe 71 at intervals along the vertical direction. Further, the both air injection nozzles 72 are horizontally arranged in the longitudinal direction, and the respective tips thereof are arranged outward from the axis of the stirring air supply pipe 71 in the radial direction.

  As shown in FIG. 1, the outlet of the stirring speed control valve 73 is connected to the upper end of the stirring air supply pipe 71 protruding above the processing tank 22. One end of an agitation air introduction pipe 74 is connected to the inlet of the agitation speed control valve 73, and the other end of the agitation air introduction pipe 74 is a fourth stop valve including a manually operated gate valve. Connected to 75 outlets. One end of an air guide pipe 76 is connected to the inlet of the fourth stop valve 75, and the other end of the air guide pipe 76 is connected to a connection plug (not shown) provided on the hose reel 77. As shown in FIGS. 2, 3 and 5, the hose reel 77 includes a reel mount 77a attached to the base plate 11, a rotating drum (not shown) rotatably supported on the top of the reel mount 77a, And an air hose 77b wound around the rotating drum. The reel mount 77 a is attached adjacent to the top side of the processing mount 16 on the upper surface of the base plate 11. The base end of the air hose 77b is connected to a hose connection port (not shown) provided in the hose reel 77, and the tip of the air hose 77b is connected to the hose reel by the operator when the waste liquid treatment system 1 is operated. 1 and is connected to the air pressure source 78 shown in FIG. The fourth stop valve 75 is operated by an operator so that the flow path is opened when the stirring means 23 is driven. Further, examples of the air pressure source 78 include an air pipe connected to an air compressor installed in a factory, a movable small air compressor, and the like. Further, as the agitation means 23, the rotary blade may be rotationally driven by the driving force of the drive motor.

  The sludge filtering device 4 is for filtering the sludge S that has settled and accumulated at the bottom of the treatment tank 22 after the adsorption treatment, and is disposed below the treatment tank 22. As shown in FIG. 2, the sludge filtering device 4 includes a sludge filter 81 as a filter medium for capturing solid particles exceeding a predetermined size contained in the sludge S discharged from the treatment tank 22, and the sludge. And a filter box 82 that houses the filter 81 for use.

  The sludge filter 81 is formed, for example, in a basket shape having a bottomed cylindrical shape with a sieve mesh of about 40-80 mesh. The filter box 82 has a bottomed cylindrical box main body 84 having a diameter of about 240 mm, a height of about 240 mm, and a capacity of about 10 L so that it can be moved by an operator, and the box main body. And a box cap 85 covering the upper opening of 84. At the lower part of the outer peripheral surface of the box main body 84, the base end portion of the filtrate discharge pipe 86 extending horizontally for discharging the sludge filtrate F that has passed through the sludge filter 81 is the diameter of the filter box 82. Projecting outward in the direction.

  As shown in FIG. 1, the inlet of a fifth stop valve 87 such as a manually operated gate valve is connected to the tip of the filtrate discharge pipe 86. One end of a filtrate discharge hose 88 is detachably connected to the outlet of the fifth stop valve 87 via a hose joint 53, and the other end of the filtrate discharge hose 88 is the other end of the second switching valve 63 described above. Is detachably connected to the input port via a hose joint 53. Further, as shown in FIG. 2, a pair of box handles 89 for use in moving the sludge filtering device 4 are symmetrically attached to the outer peripheral surface of the box body 84 with the axis of the box body 84 as the axis of symmetry. Yes. Further, a through hole (not shown) into which the lower portion of the sludge outlet pipe 30 is inserted is formed at the center of the box cap 85 so that the box cap 85 can be moved up and down along the sludge outlet pipe 30. . Then, with one end of the filtrate discharge hose 88 removed from the fifth stop valve 87, the box cap 85 is lifted upward, and then the box body 84 is moved to the filtration mounting base 17, and the carriage shown by the two-dot chain line in FIG. 3. 2 can be moved to the side. That is, the sludge filtering device 4 is formed so as to be detachable from the adsorption processing device 3, the carriage 2, and the refiltration device 5 by extension by removing the filtrate discharge hose 88 from the fifth stop valve 87. .

  By the structure which makes the said sludge filtration apparatus 4 detachable, the filter lump extraction means 90 which can take out the filter lump after filtering the sludge S of this embodiment is comprised.

  The re-filtration device 5 is for performing further filtration of the supernatant T collected in the treatment tank 22 after the raw solution is adsorbed and further filtration of the sludge filtrate F that has passed through the sludge filtration device 4.

  The refiltration device 5 is for further filtering each of the supernatant liquid and the sludge filtrate F. As shown in FIG. 6, the refiltration apparatus 5 is a predetermined contained in each of the supernatant liquid T and the sludge filtrate F. A bag-like filter 93 as a filter medium for capturing solid particles of a size larger than the above, a filter support 94 that detachably holds an opening side end of the bag-like filter 93, that is, a fluid inlet side portion, The filter support 94 has a filter case 95 that accommodates the bag-shaped filter 93 with the opening side of the bag-like filter 93 facing upward, and the length direction of the filter support 94 facing up and down. Each of the supernatant T and the sludge filtrate F It is formed so that suction can be supplied.

  The bag-like filter 93 is formed to be stretchable by a knitted stretchable thread, and one end in the longitudinal direction is opened to form a bag mouth. The stretchable yarn is formed by combining a synthetic fiber with an elastic fiber (elastomer fiber). For example, polyurethane elastic fiber (spandex) yarn as elastic fiber covers high multi-type yarns (one filament is thinner than 1.45 denier) with a large number of filaments of synthetic fibers such as polyamide (nylon) and polyester Mention may be made of ringed single-covering yarns (SCY20 WN 70/48). Alternatively, it may be a double covering yarn (DCY) obtained by covering two yarns of synthetic fibers with polyurethane elastic fiber yarns. A polyether ester elastic fiber may be used instead of the polyurethane elastic fiber.

  The filter support 94 detachably holds the opening side end portion of the bag-shaped filter 93, that is, the fluid inlet side portion, and a mounting ring 94a for mounting the opening side end portion of the bag-shaped filter 93; And a filter attachment member 94b for attaching the attachment ring 94a in the filter attachment state to the filter case 95.

  On the outer peripheral side of the upper surface of the filter mounting member 94b, a gap between an upper lid 102 and a filter mounting member 94b, which will be described later, is sealed, that is, a supernatant T or a sludge filtrate F is exposed to the outside from between the upper lid 102 and the filter mounting member 94b. A rubber O-ring or the like, which is a fixing seal for preventing leakage or external air from flowing into the filter case 95 from between a case main body 101 and a filter mounting member 94b described later. An opening gasket 94c is attached, and the supernatant liquid T or the sludge filtrate F is formed so as to be sucked and supplied. Further, an annular main body mounting groove 96 having a rectangular section that is long in the vertical direction and having a lower opening is formed in the outer peripheral side of the bottom surface of the filter mounting member 94b. The upper end is detachably fitted.

  Between the mounting ring 94a and the filter mounting member 94b, a trapped object remaining inside the bag-shaped filter 93 is formed by surrounding a portion exposed below the mounting ring 94a of the bag-shaped filter 93 in the filter mounting state from the outside. The upper end portion of the guide tube 97 formed into a bottomed cylindrical shape is inserted and supported by a wire net or the like for restricting expansion of the bag-like filter 93 to the radially outer side as the amount increases.

  The filter case 95 accommodates the filter support 94 with the opening side of the bag-shaped filter 93 facing upward, and the length direction of the filter support 94 facing up and down, and has a case body 101 and an upper lid 102. .

  A filter support 94 is detachably attached to the upper end portion of the case main body 101, and is formed in a bottomed cylindrical shape whose upper portion is opened by resin or metal, in this embodiment, transparent resin. For example, the case body has an outer diameter of about 120 mm and a length of about 800 mm. In addition, a base end portion of the outflow pipe 104 formed by a pipe joint or the like that communicates the case main body 101 with the inside and the outside is attached to the center of the bottom portion of the case main body 101, and the lower end that is the tip projects downward. Has been.

  As shown in FIG. 1, one end of a processing liquid transfer hose 105 is detachably connected to the lower end of the outflow pipe 104 via a hose joint 53. The other end of the processing liquid transfer hose 105 is detachably connected to one of two input ports of a third switching valve 106 formed of a manually operated three-way valve via a hose joint 53. The third switching valve 106 is for switching the fluid flowing into the suction pump 6 between the filtration treatment liquid C that has passed through the refiltration device 5 and the stock solution G. Therefore, the output port of the third switching valve 106 is connected to the suction port of the suction pump 6, and one end of the stock solution suction hose 107 is connected to the other of the two input ports of the third switching valve 106. The joint 53 is detachably connected. When the stock solution G is supplied to the processing tank 22 during operation of the system 1, the third switching valve 106 communicates with the other input port and the output port and passes through the refiltration device 5. When supplying the liquid C to the processing liquid storage tank 60, it is operated by an operator so that one input port and the output port communicate with each other. In addition, one end of a suction pipe 108 is connected to the other end of the stock solution suction hose 107 via a hose joint 53. The suction pipe 108 is disposed in a stock solution storage tank 109 that stores the stock solution G when the stock solution G is processed.

  The refiltering device 5 may be provided according to the specifications of the device, the design concept, etc., and the refiltering device 5 may be omitted. In this case, it can be set as the structure which connects the output port of the 2nd switching valve 63, and one input port of the 3rd switching valve 106 with the connection hose 110 shown with the dashed-two dotted line of FIG.

  The upper lid 102 covers the upper part of the case main body 101 together with a filter attachment member 94b attached to the opening end thereof, and is formed of resin or metal, in the present embodiment, resin. An inflow pipe 112 penetrating the upper lid 102 in the vertical direction is disposed at the center of the upper lid 102 along the vertical direction. The upper end of the inflow pipe 112 has a second switching position as shown in FIG. The output port of the valve 63 is connected. Moreover, as shown in FIG. 6, the inner surface of the upper cover 102 is provided with a pressing ring 102a for sandwiching the opening side end portion of the bag-like filter 93 with the attachment ring 94a.

  The upper lid 102 and the case main body 101 are detachably attached with three sets of case snap locks 113 with one touch. These three sets (only one set is shown in FIG. 6) of the case snap locks 113 are arranged so that the distance between the centers of the two case snap locks 113 adjacent to each other at the equidistant position from the axis of the case body 101 is equal. Angular arrangement.

  In addition, it can be set as the structure which uses a cylindrical filter instead of the bag-shaped filter 93 as a filter medium. Further, since the other configuration of the refiltration apparatus 5 is the same as that of a known one, detailed description thereof is omitted.

  The suction pump 6 supplies the stock solution G stored in the stock solution storage tank 109 to the processing tank 22, supplies the supernatant T collected in the processing tank 22 to the refiltration device 5, and the filter of the sludge filtration device 4. The sludge filtrate F collected in the box 82 is supplied to the refiltration apparatus 5, and the filtration treatment liquid C that has passed through the refiltration apparatus 5 is supplied to the treatment liquid storage tank 60. As the suction pump 6 of this embodiment, a self-feeding diaphragm pump that is pneumatically driven is used.

  As shown in FIG. 1, the air port of the suction pump 6 is connected to the outlet of the drive speed control valve 115. One end of the driving air introduction pipe 116 is connected to the inlet of the driving speed control valve 115, and the other end of the driving air introduction pipe 116 is connected to the outlet of the air pressure adjusting unit 117. The inlet of the air pressure adjusting unit 117 is connected to the outlet of a sixth stop valve 118 formed of a manually operated gate valve. The inlet of the sixth stop valve 118 is connected in the middle of the air guide pipe 76. The sixth stop valve 118 is operated by an operator so that the flow path is opened when the suction pump 6 is driven.

  The processing tank according to the present embodiment includes the stock solution supply pipe 47, the second stop valve 51, the stock solution supply hose 52, the first switching valve 54, the suction pump 6, the third switching valve 106, the stock solution suction hose 107, and the suction pipe 108. A stock solution supply means 121 for supplying the stock solution G stored in the stock solution storage tank 109 to the stock solution 22 is configured.

  Driven by the drive speed control valve 115, the drive air introduction pipe 116, the air pressure adjusting unit 117, the sixth stop valve 118, the air guide pipe 76, the hose reel 77, and the air hose 77b, the suction pump 6 of the present embodiment. Pump drive air supply means 122 for supplying the air for operation is configured.

  The stirring speed control valve 73, the stirring air introduction pipe 74, the fourth stop valve 75, the air guide pipe 76, the hose reel 77, and the air hose 77b supply the air used for stirring to the stirring means 23 of the present embodiment. The stirring air supply means 123 is configured.

  The supernatant liquid suction pipe 48, the third stop valve 61, the supernatant liquid discharge hose 62, the second switching valve 63, the refiltration device 5, the processing liquid transfer hose 105, the third switching valve 106, the suction pump 6, and the first switching valve. 54, the processing liquid discharge hose 55 and the discharge pipe 56 supply the supernatant liquid T to the refiltration apparatus 5 of the present embodiment, and the filtered processing liquid that has passed through the refiltration apparatus 5 to the processing liquid storage tank 60 A supernatant liquid processing means 124 for supplying C is configured.

  The filtrate discharge pipe 86, the fifth stop valve 87, the filtrate discharge hose 88, the second switching valve 63, the refiltration device 5, the processing liquid transfer hose 105, the third switching valve 106, the suction pump 6, the first switching valve 54, Through the treatment liquid discharge hose 55 and the discharge pipe 56, the sludge filtrate F that has passed through the sludge filtration device 4 is supplied to the refiltration device 5 of the present embodiment, and the refiltration device 5 is connected to the treatment liquid storage tank 60. A sludge filtrate treatment means 125 for supplying the filtrate treatment solution C that has passed is configured.

  The cart 2 includes a stock solution supply hose 52, a treatment liquid discharge hose 55, a supernatant liquid discharge hose 62, a filtrate discharge hose 88, a treatment liquid transfer hose 105, A hose housing space (not shown) for housing each hose such as the stock solution suction hose 107 and a holder (not shown) into which the distal ends of the discharge pipe 56 and the suction pipe 108 can be inserted and removed are provided.

  In FIG. 1, the flow direction of the stock solution G is indicated by arrow G, the flow direction of sludge S is indicated by arrow S, the flow direction of supernatant liquid T is indicated by arrow T, the flow direction of sludge filtrate F is indicated by arrow F, and the flow direction of filtration treatment liquid C. The direction is indicated by arrow C, and the air flow direction is indicated by arrow A. Furthermore, in FIG. 1, only the main parts are denoted by reference numerals.

  Next, the operation of the present embodiment having the above-described configuration will be described.

  In the processing operation of the stock solution G by the waste liquid treatment system 1 of the present embodiment, the operator moves the carriage 2 to the vicinity of the stock solution storage tank 109 and the treatment solution storage tank 60 and performs a preparatory work. In this preparatory work, each hose 52, 55, 62, 88, 105, 107 is connected to a predetermined position, the discharge pipe 56 is arranged in the processing liquid storage tank 60, and the suction pipe 108 is arranged in the stock liquid storage tank 109. To do. Further, the tip of the air hose 77 b is pulled out from the hose reel 77 and connected to the air pressure source 78. Further, each of the stop valves 29, 51, 61, 75, 87, 118 is in a closed state in which the flow path is blocked.

  When the preparatory work is completed, the stock solution G is supplied to the processing tank 22. For this reason, the 2nd stop valve 51 is made into an open state. Further, the first switching valve 54 is operated so that the fluid discharged from the discharge port of the suction pump 6 is directed to the processing tank 22, and the third switching valve 106 is operated so that the stock solution G is directed to the suction pump 6. Then, the sixth stop valve 118 is opened, the suction pump 6 is driven, and the stock solution G is supplied to the processing tank 22. Thereafter, when about 50 L of the stock solution G is supplied to the treatment tank 22, the driving of the suction pump 6 is stopped.

  Next, after opening the tank snap lock 40 and lifting the lid opening / closing handle 41, the end lid 36 is opened as shown by the two-dot chain line in FIG. It is put into the tank main body 25 and eventually the inside of the processing tank 22. And adsorbent is thrown into the processing tank 22, and the adsorption process by the adsorbent by an adsorbent is performed. At this time, the fourth stop valve 75 is opened, and air is blown into the stock solution from the air injection nozzle 72 and stirred to disperse the adsorbent in the stock solution. As a result, foreign matter in the stock solution is adsorbed to the adsorbent in a few minutes. Thereafter, the fourth stop valve 75 is left in a closed state, so that the adsorbent that adsorbs foreign matters in the stock solution accumulates as sludge S at the bottom of the processing tank 22 and a supernatant T can be formed thereon. The adsorption process ends at this point.

  When the adsorption process is finished, the third stop valve 61 is closed. Further, the second switching valve 63 is operated so as to supply the supernatant liquid T to the refiltration device 5, and further, the third switching valve so that the filtered liquid C passing through the refiltration device 5 flows into the suction pump 6. 106 is operated to operate the first switching valve 54 so that the fluid discharged from the discharge port of the suction pump 6 is directed to the processing liquid storage tank 60. Thereafter, the suction pump 6 is driven to supply the supernatant T to the refiltration device 5. The supernatant liquid T supplied to the refiltration device 5 is subjected to a filtration process in which solid particles of a predetermined size or more are captured by the bag-like filter 93 while passing through the refiltration apparatus 5, and the filtration treatment liquid C is Then, it passes through the refiltration device 5 and is discharged to the treatment liquid storage tank 60 through the suction pump 6, and the filtration treatment of the supernatant liquid T is completed. And if the filtration process of the supernatant liquid T is complete | finished, the suction pump 6 will be stopped.

  Next, the third stop valve 61 is closed. And after operating the 2nd switching valve 63 so that the sludge filtrate F may be supplied to the refiltration apparatus 5, the 1st stop valve 29 is made into an open state, and with the supernatant liquid T which remained in the processing tank 22, the processing tank 22 The sludge S collected at the bottom of the sludge is supplied to the sludge filtering device 4. The supernatant liquid T and the sludge S supplied to the sludge filtration device 4 are filtered by the solid particles having a predetermined size or larger being captured by the sludge filter 81 while passing through the sludge filtration device 4. Some sludge filtrate F accumulates in the filter box 82. The sludge filtrate F is supplied to the refiltration apparatus 5 by opening the fifth stop valve 87 and driving the suction pump 6. The sludge filtrate F supplied to the refiltration device 5 is subjected to a filtration process in which solid particles of a predetermined size or larger are captured by the bag-like filter 93 while passing through the refiltration device 5. The filtered liquid C passes through the refiltration device 5 and is discharged to the processed liquid storage tank 60 through the suction pump 6, and the filtering process of the sludge filtrate F is completed. And if the filtration process of the sludge filtrate F is complete | finished, the suction pump 6 will be stopped.

  Next, both the first stop valve 29 and the fifth stop valve 87 are closed, and one end of the filtrate discharge hose 88 is removed from the fifth stop valve 87. Then, the box body 84 is moved to the side of the mounting table 17 for filtration. Then, the sludge filter 81 that has captured solid particles of a predetermined size or larger including the adsorbent that has adsorbed foreign substances is removed from the box body 84 and replaced with a new sludge filter 81. Thereby, every time filtration processing of the sludge collected in the bottom part of the processing tank 22 is carried out with the supernatant liquid T which remained in the processing tank 22 for the filter lump after filtering the sludge S in this timing. Can be taken out. Moreover, if the sludge filter 81 is replaced, the sludge filtration device 4 is restored in the reverse order.

  The used sludge filter 81 can be reused by collecting and washing the captured solid particles in a collection container (not shown). Further, the adsorbent can be regenerated by burning the solid particles collected in the collection container.

  Thus, according to the system 1 of the present embodiment, the treatment tank 22 of the adsorption processing apparatus 3 can accommodate the stock solution G and the adsorbent and perform the adsorption treatment, and the stirring means 23 can contain the stock solution G. Since the adsorbent can be uniformly dispersed in the adsorbent, it is possible to increase the efficiency of adsorbing foreign matters by the adsorbent.

  Further, according to the system 1 of the present embodiment, the adsorbent can adsorb foreign matters such as coating residues contained in the stock solution G, and can perform an adsorption process having almost no influence on the stock solution G, and can perform adsorption. The adsorbent can be regenerated by a simple method of burning the adsorbent subjected to the treatment.

  Furthermore, according to the system 1 of the present embodiment, the sludge filtering device 4 can capture the adsorbent used for the adsorption process together with the foreign matter and reliably separate it.

  Furthermore, according to the system 1 of the present embodiment, the filter lump removing means 90 of the sludge filtration device 4 allows the operator to easily attach and detach the sludge filtration device 4 from the system 1, and this sludge filtration device 4. The filter cake after the sludge S is filtered by a simple method of easily attaching and detaching from the system 1, that is, the adsorbent used for the adsorption treatment can be easily taken out.

  Furthermore, according to the system 1 of the present embodiment, since the capacity of the box body 84 is about 10 L, the movement of the sludge filtering device 4 by the operator can be facilitated.

  Further, according to the system 1 of the present embodiment, the refiltration device 5 further filters each of the supernatant T collected in the treatment tank 22 after the adsorption treatment or the sludge filtrate F that has passed through the sludge filtration device 4. Since the process can be performed, a highly accurate filtration process can be performed.

  Furthermore, according to the system 1 of the present embodiment, the supply of the raw liquid G to the treatment tank 22, the supply of the supernatant liquid T to the refiltration apparatus 5, and the supply of the sludge filtrate F to the refiltration apparatus 5 by one suction pump 6. Since the filtration processing liquid C can be discharged to the processing liquid storage tank 60, the configuration can be simplified, the size can be reduced, and the weight can be reduced easily.

  Furthermore, according to the system 1 of the present embodiment, the adsorption treatment device 3 having the treatment tank 22 for storing the stock solution G having a capacity of about 50 L, the sludge filtration device 4 having the box body 84 having a capacity of about 10 L, and refiltration. Since each of the apparatus 5 and one suction pump 6 is installed in the carriage 2, the system 1 can be easily moved.

  Furthermore, according to the system 1 of the present embodiment, since both the stirring of the stock solution G supplied to the processing tank 22 and the driving of the suction pump 6 are performed by air, the configuration is simplified. It is possible to easily reduce the size and weight.

  Therefore, according to the system 1 of the present embodiment, the adsorbent used for the adsorption process can be easily taken out, the usability for the operator can be improved, and the system 1 is moved to a desired place. The stock solution G can be processed.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

DESCRIPTION OF SYMBOLS 1 System 2 Carriage 3 Adsorption processing device 4 Sludge filtration device 5 Refiltration device 6 Suction pump 22 Treatment tank 23 Stirring means 25 Tank body 26 Tank lid 28 Sludge discharge pipe 29 First stop valve 30 Sludge outlet pipe 32 Sludge discharge means 35 Center Lid portion 36 End lid portion 45 Measuring cup 47 Stock solution supply tube 48 Solution suction tube 51 Second stop valve 52 Stock solution supply hose 53 Hose joint 54 First switching valve 55 Treatment solution discharge hose 56 Discharge tube 56 Inflow tube 60 Treatment solution storage tank 61 Third stop valve 62 Supernatant discharge hose 63 Second switching valve 71 Stirring air supply pipe 72 Air injection nozzle 73 Stirring speed control valve 74 Stirring air introduction pipe 75 Fourth stop valve 76 Air induction pipe 77 Hose reel 77b Air hose 78 Air pressure source 81 Sludge filter 82 Filter box 84 Box body 85 Box cap 86 Filtrate discharge pipe 87 Fifth stop valve 88 Filtrate discharge hose 90 Filter lump removal means 93 Bag filter 94 Filter support 95 Filter case 101 Case body 102 Top lid 104 Outflow pipe 105 Treatment liquid transfer hose 106 3 switching valve 107 Stock solution suction hose 108 Suction tube 109 Stock solution storage tank 112 Inflow tube 115 Drive speed control valve 116 Drive air introduction tube 117 Pneumatic pressure adjustment unit 118 Sixth stop valve 121 Stock solution supply means 122 Pump drive air supply means 123 Air supply means for stirring 124 Supernatant treatment means 125 Sludge filtrate treatment means A Air C Filtration treatment liquid F Sludge filtrate G Stock solution (treatment target liquid)
S sludge T supernatant liquid

Claims (4)

An adsorption treatment apparatus comprising a treatment tank capable of supplying each of the adsorbents for adsorbing foreign substances contained in the liquid to be treated for waste liquid treatment, and a stirring means for dispersing the adsorbent in the liquid to be treated; ,
A sludge filtration device comprising a filter medium for filtering sludge, which is capable of supplying sludge accumulated and collected at the bottom of the treatment tank after the treatment target liquid is adsorbed,
A frame for installing the adsorption treatment device and the sludge filtration device so that the adsorption treatment device is located above the sludge filtration device;
Have
The sludge filtration apparatus has a filter lump removal means capable of removing a lump after filtering sludge. The treatment tank has sludge discharge means for discharging the sludge accumulated at the bottom of the treatment tank by natural fall for each adsorption process,
The sludge filtration device has a basket-like sludge filter as the filter medium, and a filter box that houses the sludge filter,
The filter lump removal means is formed by making the sludge filtration device detachable,
The waste liquid treatment system according to claim 1, wherein the frame is a movable carriage.   Stretchable by knitted elastic yarns for further filtration of the supernatant liquid collected in the treatment tank after the treatment target liquid is adsorbed and further filtration of the sludge filtrate that has passed through the sludge filtration device. The waste liquid treatment according to claim 2, further comprising a refiltering device which is provided with a formed bag-like filter or cylindrical filter and is formed so that a supernatant liquid or a sludge filtrate can be sucked and supplied. system.   One suction pump is installed in the frame, and this suction pump passes the treatment liquid to the treatment tank, the supernatant liquid to the refiltration device, and the sludge filtration device to the refiltration device. The waste liquid treatment system according to claim 3, wherein the sludge filtrate is supplied and the filtration treatment liquid discharged through the refiltration device is discharged.

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