JP3852722B2 - Water purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention,UpThe present invention relates to a water purifier that purifies treated water from a lower-side treatment tank through a source water tank installed on the hand side by a falling flow method.
[0002]
[Prior art]
  Conventionally, water purifiers that purify source water from lakes, ponds, rivers, etc. or wastewater that has been washed, and source water discharged from facilities such as gas stations, contain charcoal, zeolite lights, etc. There is known a water purifier in which a plurality of processing tanks are connected to each other, source water is pumped and supplied from a processing tank on the upper side by a water supply pump, and purified water is forcibly discharged from the final processing tank.
  In recent years, a water purifier that supplies ozone to such a water purifier and performs ozone treatment such as sterilization is also known.
[0003]
[Problems to be solved by the invention]
  However, the water purifier according to the above-described conventional configuration, when treating source water contaminated with a large amount of various organic substances, detergents, oils and other various components and colored substances, charcoal or zeolite in the upper treatment tank, etc. A large amount of organic matter, coloring matter, or various bacteria adheres to the filter body, and the source water is forcibly pumped through the filter body. There are drawbacks.
  In addition, since the treatment in each treatment tank is discharged without being sufficiently performed, it is necessary to frequently replace the filter body, or a large amount of filter body must be accommodated in each treatment tank. There are problems such as an increase in the size of the apparatus and an increase in running cost.
[0004]
[Means for Solving the Problems]
  The water purifier according to the present invention for solving the above-mentioned conventional problems, firstly, a source water tank 2 for temporarily storing source water,The filter member 43 is accommodated inside, from the source water tank 2Supply of source waterIn responsePurification treatment by microorganismsWherePhysical tank4 andConcatenateprocessingIn a water purifier for purifying water, the source water tank 2 andthe aboveProcessing tank4A main aeration tank 2a for aeration treatment of source water betweenThe processing tank 4 is pivotally supported in a vertical cylindrical tank body 4T so that the rotary shaft 41 can be rotationally driven in the vertical direction, and a flexible string-like or linear part around the rotary shaft 41 A rotary filter body 40 formed by attaching filter members 43 made of a material radially densely,Water is supplied from the source water tank 2 to the main aeration tank 2a by the water absorption pump 2P, and is also lowered from the main aeration tank 2a.Flow~ sideWherePhysical tank4 and the treatment tank 4Source water tank 2And sequentiallyHeadCan be watered byDrainage by flow methodAnd refluxConnect as possible,Treated water between source tank 2 and treatment tank 4It is characterized by purification treatment while circulating.
[0005]
  Second,The partition cylinder 15 is fitted in the cylindrical tank body 4T of the processing tank 4 with a leakage gap 4R, and the rotary filter body 40 is provided in the partition cylinder 15 so as to be able to rotate with stirring.It is characterized by that.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
  An embodiment of the present invention will be described with reference to the drawings. 1 shows the internal structure of the water purifier A according to the present invention with the cover removed, FIGS. 1 to 3 show the structure of each treatment apparatus, and FIG. 4 is a schematic diagram showing the treatment circuit of the water purifier A. FIG. 5 shows a main part of the filtration tank 4, FIG. 6 is an explanatory plan view showing an aspect in the case where the water purification apparatus A is installed in the fueling stand 9 </ b> S, and FIG. 7 shows that the water purification apparatus A is installed in the car wash apparatus 9. An embodiment is shown.
[0007]
  The water purifier A according to this embodiment is provided with a source water tank (storage tank) 2 and a main aeration tank 2a (aeration tank) for accommodating source water on the uppermost side in the processing direction on a machine base 1a having a square shape in plan view. At the same time, a plurality of cylindrical tank-shaped treatment tanks 1 (5, 6, 4) which are vertically fixed are provided, and the source water is circulated an appropriate number of times by a feed water pump 2P and a head-falling method described later. While purifying it.
[0008]
  The first processing tank 5 on the upper side of the processing tank 1 accommodates charcoal pieces 5a such as charcoal or bamboo charcoal in a state of being pulverized to an appropriate size (approximately 10 to 50 mm), or has a length direction. It is set as the charcoal tank 5 accommodated in the state aligned and aligned in the vertical direction.
  In addition, the second processing tank 6 on the lower side pulverizes the tile pieces 6a to an appropriate size (about 10 to 20 mm) within a range in which the capacity of the treated water and the performance of the treatment are ensured and clogging does not occur. The tile tank is housed.
  Then, a filtration tank 4 as a third processing tank is installed on the lower side with the configuration of FIG. 5 described later, and an air blower (compressor) 8a is provided at the bottom of the charcoal tank 5, the roof tile tank 6, and the filtration tank 4. The air supply pipe 80 for supplying the air generated in is connected.
  The filtration tank 4 can be switched and supplied so as to send air through a valve 8V provided in the air supply pipe 80 when cleaning the filtration member 43 described later.
[0009]
  The adjacent tanks are connected in series via each connecting pipe. That is, the source water tank 2 and the main aeration tank 2a communicate with each other via a connecting pipe 20 having a water supply pump 2P, and the upper part of the main aeration tank 2a and the upper part of the charcoal tank 5 are connected by the connecting pipe 20a. Then, the source water in the source water tank 2 is supplied to the treatment tank 1 arranged as described above, and the treated water discharged from the lowermost side of the treatment tank 1 is returned to the source water tank 2 through the discharge pipe 7 ( Return).
  Further, on the upper part of the main aeration tank 2a, the charcoal piece tank 5, and the tile piece tank 6, a defoaming device 70 for eliminating bubbles generated inside by a purification treatment action is provided with a configuration described later.
[0010]
  In addition, a lid 12 having a vent 11 provided with the defoaming device 70 is attached to the supply port 10 opened at the upper part of the charcoal tank 5 and the roof tile tank 6 in the processing tank 1 so as to be openable and closable. The container 15 formed in a cylindrical shape by a mesh member in which filter bodies (filter members) such as the charcoal pieces 5a and the tile pieces 6a are accommodated is inserted into and removed from the supply port 10 to perform exchange and maintenance work thereof. Making it easy.
  Further, a drain pipe 13 with an electromagnetic valve 13V is provided at the bottom of the main aeration tank 2a and each processing tank 1, and the deposits and accumulations accumulated at the bottom together with the water in the tank are discharged automatically and if necessary. The interior can be cleaned in a timely manner by automatic control and manual operation.
[0011]
  As described above, the water purifier A enables the replacement and maintenance work of the filter body to be easily performed by arranging the processing tanks 5, 6, and 4 on the front side of the machine base 1a. By arranging the source water tank 2 and the main aeration tank 2a behind the machine body in the width direction of the machine body, the machine body is made compact and the apparatus is downsized while sufficiently securing the amount of source water stored.
  Further, the main aeration tank 2a may be installed at a position indicated by a dotted line in FIG. 2, and in this case, each cylindrical processing tank is disposed in front of the source water tank 2 while increasing the capacity of the source water tank 2. Are arranged in series, and there are advantages such as simplifying the piping and making the airframe compact.
[0012]
  Further, as shown in FIG. 4, the charcoal tank 5 of the processing tank 1 is connected to the water supply end of the connecting pipe 20a on one side of the upper portion thereof to open a water supply port 5K, and between the bottom water supply port 5S. Is formed in the accommodating portion of the charcoal piece 5a.
  Further, as shown in FIGS. 3 and 3, the tile tank 6 has a water supply port 6K opened at a position lower than the water supply port 5K of the charcoal piece tank 5 by a drop h, and the water supply port 5S and the connecting pipe 50 are connected to each other. And the water supply port 6S is opened at approximately the same height as the water supply port 5S and communicates with the water supply port 4K at the bottom of the filtration tank 4 through the connection pipe 60. Contained.
[0013]
  On the other hand, the filtration tank 4 has a configuration shown in FIG. 5 to be described later, and is opened in a portion where the height of the water supply port 4S provided in the upper portion is lower than the water supply port 6K of the tile piece tank 6 by a drop H. A discharge pipe 7 is provided, and an end portion thereof communicates with a reflux port (water supply port) 2K of the source water tank 2.
[0014]
  The water supply end of the discharge pipe 7 connected to the water supply port 4S is provided so that the height connected to the water supply port 2K of the source water tank 2 is lower than the water supply port 4S by the drop H1.
  The diameter of the discharge pipe 7 is larger than the diameters of the connecting pipes 50, 60, etc., so that the natural filtration and discharge by the drop flow produced by the drops h, H, H1 can be performed smoothly. ing.
[0015]
  A cover 1b covers the periphery of the processing tank 1, the source water tank 2, related equipment, and the like, and is installed to be openable and closable so that maintenance work can be easily performed. 1C is a control panel for controlling various pumps installed in the water purifier A, the ozone generator 3, the air feeders 8, 8a and the like so that they can be manually operated and automatically controlled.
  1S is a water level sensor installed in each tank, and 1F is an alarm device comprising a buzzer or a lamp to warn when the water level in the tank by the water level sensor 1S is below a predetermined amount. Connected to 1C.
  1 and 4, the air generators 8 and 8a for supplying air composed of an air generator or an air pump or a compressor, etc. should be accommodated and installed by effectively utilizing the space in the box of the control panel 1C. This makes it possible to rationally protect the equipment and make the device compact.
[0016]
  As described above, the water purifier A composed of the respective tanks connected by the head-down method is provided with an attachment device and equipment described below. Moreover, although the use aspect of the water purifier A is the same as that of the conventional thing, the aspect utilized for the water for car wash as a suitable example of use by this invention is mentioned later in FIG. 6, FIG.
  As shown in FIGS. 4 and 6, the source water tank 2 includes a source water tank 22 for storing source water installed at an appropriate source water location outside the water purification apparatus A, and a source pumped up by a source water pump 23. A source water settling tank 25 for precipitating water, and the water supply port 21 established above the water supply port 2K of the source water tank 2 and the source water settling tank 25 are connected by a water pipe 26 made of a flexible pipe or the like. is doing.
[0017]
  As a result, the source water in the upper layer of the source water settling tank 25 is supplied by the amount accommodated in the source water tank 2, and the source water in the source water tank 2 is batchwise processed by the processing method described later in the processing tank 1. After the purification treatment, the purified treated water in the source water tank 2 is discharged by the discharge pump 27 through the discharge pipe 28 to the treated water storage tank 29 appropriately installed outside the apparatus and stored. The treated water stored in the treated water storage tank 29 can be reused for car wash water or the like.
[0018]
  Next, the configuration and operation of the main part of the processing tank 1 will be described in detail.
  The charcoal tank 5 and the tile tank 6 are provided with auxiliary tanks (auxiliary aeration tanks) 5T and 6T for individual processing, respectively. The auxiliary tanks 5T and 6T receive the internal treated water by the circulation pumps 5P and 6P. An air sending part having a large number of nozzle holes of the air supply pipe 30 communicating with the air supply unit 8 and the ozone generator 3 is installed in the lower part while sucking in from the lower side and returning to the upper side. By sending air as fine bubbles from the bottom of the tank 6, microorganisms living in the filter body such as the charcoal pieces 5 a and the tile pieces 6 a in the tank can be activated and the decomposition of organic substances can be promoted. I have to.
[0019]
  The auxiliary tanks 5T and 6T are configured to perform ozone treatment such as sterilization by supplying ozone to treated water in the auxiliary tanks 5T and 6T by operating an ozone generator 3 and a switching valve (not shown). At this time, circulation is repeated to each charcoal piece tank 5 and the tile piece tank 6 while slowly performing ozone treatment over time by supplying small capacity pumps 5P and 6P.
  As a result, the aeration of the treated water in this portion in the auxiliary tanks 5T and 6T provided so as to be capable of aeration treatment while preventing the harmful effects of supplying ozone directly to the charcoal piece tank 5 and the tile piece tank 6 The ozone treatment can be easily and satisfactorily performed together with the treatment, and the processing load of the charcoal piece tank 5 and the tile piece tank 6 can be reduced and the apparatus can be downsized. At this time, the lowermost filtration tank 4 may be connected and configured to supply ozone as required as indicated by the dotted line in FIG.
[0020]
  Therefore, according to the above embodiment, ozone is distributed to the auxiliary tanks 5T and 6T and the filtration tank 4 to perform the ozone dispersion treatment, so that the ozone concentration supplied to the treated water is about 100 to 150 PPM (conventional treatment). The apparatus has an ozone concentration of 1000 to 2000 and requires exhaust ozone treatment after the ozone treatment.) The ozone treatment can be satisfactorily performed at a relatively low concentration, and the aeration effect can be achieved by mixing air. In this state, effective microorganisms are activated without being killed, and the generation of iron sulfide that causes sludge is controlled by decomposing colored components of contaminants in water, removing germs, and oxidizing iron. Like to do.
[0021]
  That is, the treated water that has been treated as described above by the auxiliary tanks 5T and 6T is forced to oxidize and decompose difficult decomposition components with ozone in advance.MinutesIn a state in which the solution is raised, it is supplied to the charcoal tank 5 and the tile tank 6 exceptionally, and here, the organic matter decomposed into a state in which it is easily adsorbed by the above-described processing is satisfactorily performed.
  Accordingly, the water source contaminated with chemical substances such as agricultural chemicals and detergents can be treated well with a simple and inexpensive structure.
[0022]
  In addition, the charcoal tank 5 includes a charcoal piece 5a made of charcoal or bamboo charcoal, which is made into a single grain of about 10 to 20 mm, in a stack so as to allow water to pass therethrough. In particular, the organic matter is well adsorbed in the contents of the source water in a state where the processing load is reduced by the filtration tank 4.
  And in this treatment process, microorganisms such as daphnia that decompose the organic matter can be generated and settled well and suitably grown, and in the state of promoting the adsorption and decomposition of the organic matter of the source water and the adsorption of iron by the charcoal fragments 5a, Water is supplied to the next tile tank 6 from the water supply port 5S located below.
[0023]
  In addition, if the charcoal pieces 5a are stored in the charcoal tank 5 in a state where bamboo charcoal is bundled along the length of the tank, clogging due to adhering substances can be further prevented, and adhering substances are discharged when draining. In addition, there is an effect that the drain can be discharged well along the vertical direction.
[0024]
  Further, as shown in FIG. 3 (B), the tile piece tank 6 is provided with a stainless steel cylindrical container 15 having a large number of water passage holes 15b in the inside thereof through a foot 15a. In order to make effective use of waste tiles or tiles that are discarded in the unglazed state, they are stacked and accommodated so that they can be passed through in a state of being crushed to about 10 to 20 mm into single grains. It is configured as follows.
[0025]
  Since the tile piece 6a is a solidified porous soil, it provides a suitable increase in the number of microorganisms, and the treated water is well purified by the microorganisms activated at this site. It has characteristics such as being fed to the next filtration tank 4 while absorbing and removing the components to be treated by the pores.
  Moreover, in the present situation where the above-mentioned waste tiles are difficult to dispose of, the use of effective disposal of the tiles as a treatment material (filter body) as the second treatment tank is opened, and an inexpensive purification device is provided. There are advantages.
[0026]
  Next, the filtration tank 4 will be described with reference to FIG.
  This filtration tank 4 has a stainless steel cylindrical container (partition tube) 15 having a large number of water passage holes 15b formed on the peripheral surface with legs 15a, and a leakage gap 4R inside the cylindrical tank body 4T. In addition, the rotary filter body 40 that is pivotally supported in the vertical direction is rotatably provided inside the container 15, thereby making it unnecessary to replace the rotary filter body 40 over a long period of time. The high-performance filtration process is efficiently performed.
[0027]
  That is, the rotary filter body 40 of the illustrated example pivotally supports the upper part of the rotating shaft 41 via a pedestal 42 so as to be rotationally driven by a drive motor 4M attached to the container 15 and has its lower end part below the container 15. The filter member 43, which is pivotally supported by the provided metal portion 15c and has flexibility along the entire circumference of the long shaft portion, is detachable in a radial direction so that the tip end portion is close to the inner circumference of the container 15. Provided.
  Further, as shown in this embodiment, the filter member 43 is attached (planted) to the rotary shaft 41 in a state in which string-like or linear pieces made of a synthetic resin material such as polypropylene generally marketed as a packing string are bundled and densely packed. Therefore, it is possible to satisfactorily adhere the deposits and fix the microorganisms with an inexpensive and simple structure.
[0028]
  Therefore, in the filtration tank 4 configured as described above, the treated water is densely gathered in the vertical and circumferential directions while entering the discharge pipe 7 from the lower part of the tank body 4T through the connection pipe 60 in the rotation stopped state of the rotary filter body 40. The filter member 43 is sufficiently filtered, and the downward movement of the deposit that falls naturally is favorably dropped by the shaking and gaps of the filter member 43 in the water, so that the deposit is accelerated and the deposit is sent out from the discharge pipe 7. This is characterized in that the filtering function can be performed smoothly without hindering the discharge as drainage while preventing the discharge.
[0029]
  The removal of the deposits adhering to the filter member 43, the cleaning of the tank, and the like can be performed in a timely manner by driving the drive motor 4M in a timely manner by automatic control or manual operation.
  In this case, the rotary filter 40 may be rotated while draining the treated water in the tank from the drain pipe 13 via the electromagnetic valve 13V in a state where the water supply from the connecting pipe 60 is stopped. The deposit | attachment adhering to 43 can be removed accurately and rapidly, and it can discharge | emit favorably with waste_water | drain.
[0030]
  That is, the adhering matter adhering to the filter member 43 is initially shaken off by the stirring rotation of the filter member 43 in water, and then when the filter member 43 rotates in the air as the water level drops. The filter member 43 is further squeezed by being retracted in the counter-rotating direction, and then the filter member 43 is radially expanded by centrifugal force to remove the deposits in the same direction. It is.
  In addition, the deposits released in the centrifugal direction quickly flow down through the leakage gap 4R through the water passage hole 15a of the container 15 and separated from the inside of the tank. The reattachment to the filter member 43 is prevented and the drainage is accurately and promptly discharged.
[0031]
  At this time, if air is ejected from the air supply pipe 80 communicated with the filtration tank 4, the deposits can be removed more favorably by air bubbles.
  Further, the filtering member 43 is not limited to the above example, and may be in the form of a lump such as charcoal pieces, zeolite pieces, roof tiles, etc. In this case, lump pieces contained in the partition cylinder 15 are used. By adhering and rotating, for example, the agitating member formed on the rotating shaft 41 with the filter member 43 in the shape of a ring, the adhering matter adhering to the filtering member 43 can be satisfactorily removed.
[0032]
  Further, when the filtration of the filtration tank 4 is made to communicate with the ozone generator 3 through the air supply pipe 30, ozone is supplied as fine bubbles from below by the air supply pipe 30 to the treated water supplied from the bottom. Therefore, the treated water at the initial stage of supply supplied from the water supply port 4K is preferentially subjected to ozone treatment such as decolorization, deodorization and sterilization, and oxidative organic decomposition, and is sent from the water supply port 4K. Treat the supplied treated water well, reduce the residual ozone from the water supply port 4S, reduce the processing load of the processing tank on the upper side that is circulated, and perform the purification action well. It is something that can be done.
[0033]
  The treated water sent from the filtration tank 4 may be sent to the source water tank 2 through the discharge pipe 7 set in a long path, and in this case, the residual ozone is well delivered to the source water tank 2 in this case. In addition to being reduced, residual ozone is reduced even while being circulated and stored in the source water tank 2 from the water supply port 2K, so there is no residual ozone in the circulated treated water sent from the source water tank 2 to the charcoal tank 5 Or it becomes a little, and it is prevented that it has a bad influence on the microorganisms which inhabit in the lower charcoal tank 5 grade | etc.,.
[0034]
  Next, the defoaming apparatus 70 will be described with reference to FIGS.
  The defoaming device 70 shown in FIG. 3 is provided in the vent 11 of the tile piece tank 6, and the defoaming device 70 provided in the main aeration tank 2 a and the charcoal piece tank 5 has the same configuration. The apparatus 70 is connected in series by an air supply pipe 72 that communicates with an air supply device 71, and drainage water (waste liquid) containing impurities such as detergent components and dust after defoaming by the defoaming apparatus 70 is supplied to the air supply pipe 72. The end portion is connected to the source water settling tank 25 or the source water tank 22 to be refluxed (returned).
  In addition, you may install the said defoaming apparatus 70 also in the filtration tank 4 as needed.
[0035]
  Further, the defoaming device 70 in the illustrated example is simplified by arranging the nozzle portion 75 and the throttle portion 76 having small diameter holes formed in front and rear of the defoaming chamber 73 formed in the air supply pipe 72 communicating with the vent hole 11. It has a cheap structure.
  That is, with this configuration, the defoaming device 70 causes the air supplied from the air supply device 71 to blow out from the nozzle portion 75 into the defoaming chamber 73, thereby making this portion have a negative pressure and the tile tank 6. While the bubbles generated inside are forcibly sucked up and discharged, a part of the bubbles is removed with the force of air.
[0036]
  Next, in the defoaming chamber 73ToWhen the foam is ejected from the throttle section 76, it comes into contact with the end of the hole and suddenly becomes negative pressure outside the hole (inside the pipe) 77, so that the foam is completely defoamed. (Waste liquid) flows smoothly in the air supply pipe 72 together with air and is returned to the source water tank 22 through the source water precipitation tank 25.
  Further, the waste liquid containing a large amount of the detergent component after defoaming can be discharged out of the machine by a switching valve, but when this waste liquid is mixed into the source water as shown in this embodiment, It is possible to prevent environmental pollution due to waste liquid, and to use this waste liquid to increase the amount of detergent components in the source water, and also to use this detergent component to promote foaming action in the treatment tank and to prevent dust and impurities. There is an advantage that aeration processing such as adhesion removal can be performed satisfactorily. Therefore, according to this, there is also an advantage that low-cost water purification treatment can be performed without intentionally replenishing detergent components.
[0037]
  That is, in this way, in the main aeration tank 2a, the charcoal piece tank 5, and the tile piece tank 6, foaming by the detergent component and the air supplied from the air supply device 8 and the air supply device 8a can be performed more favorably, With this foaming action, it is possible to efficiently and easily promote the removal of the impurities in the source water and treated water and the adhering substances adhering to each filtering member by reliably adsorbing them to the foam, and each filtering member. Thus, there is an advantage that the filtration effect can be activated and the apparatus can be reduced in size.
  In addition, the detergent component can use the detergent drainage generated by the detergent used at the time of car washing in the fueling station 9S or the like as it is, but in the case of source water not containing the detergent component, the detergent should be added separately. Good.
[0038]
  The water purifier A configured as described above is configured so that a predetermined amount of source water stored in the source water tank 2 is supplied to the main aeration tank 2a by the feed water pump 2P according to a command set in advance on the control panel 1C. From the upper part of the main aeration tank 2a via the connecting pipe 20a to the charcoal tank 5 while the tile tank 6 and the filtration tank 4 and the water level on the lower side are lowered. The treated water in each tank is gently flowed down to the source water tank 2 by the above-described head-down method represented by the heads h, H, H1, and the water pump 2P is again supplied from the source water tank 2 by one water pump 2P. After the above-mentioned circulation treatment is repeated an appropriate number of times within a predetermined time, treated water (purified water) having been treated to a set value stored in the source water tank 2 is discharged by a discharge pump 27 and a discharge pipe 28. Outside treated water storage In which a series of purification treatment can be satisfactorily completed by exhausting the vessel 29.
[0039]
  Thereafter, the source water in the source water tank 22 is supplied again to the source water tank 2 in accordance with the set command, and the same purification process as described above is repeatedly performed continuously.
  In such a purification process, a main aeration tank 2a is provided on the upper side of the processing tank 1, and source water is supplied from the source water tank 2 to the main aeration tank 2a by a water supply pump 2P. For this reason, pumping by pumps is avoided, and water is discharged by a head-down method as described above to allow natural discharge and to circulate gently a predetermined number of times. A series of processes can be performed easily and satisfactorily in a state where the purification process is sufficiently performed.
[0040]
  In such a process, since the main aeration tank 2a is installed between the source water tank 2 and the charcoal tank 5, the source water is precipitated in the main aeration tank 2a and filtered prior to the aeration action. Purification process, removing large dust and impurities to reduce the processing load of the processing tank 1 on the lower side, and creating an advantage such that a good filtering action can be promoted in the processing tank 1. .
[0041]
  Further, during operation of the water purifier A, even when water supply is stopped due to a trouble with the water supply pump 2P, the charcoal tank 5, the tile tank 6 and the filtration tank 4 always maintain an appropriate water level inside. Therefore, it is possible to satisfactorily prevent the harmful effects caused by the emptying of the processing tanks 1, that is, the killing of effective microorganisms caused by drying of the filter body and the generation of gas components, and to achieve such an effect. Can be provided easily and inexpensively.
[0042]
  The source water tank 2 according to the illustrated example has a source water capacity of about 1500 liters (L), and when this is circulated about 10 to 15 times within 3 to 5 hours, the chemical oxygen demand is the source water. The treated water is about 6.6 mg / L for 370 mg / L, the normal hexane extract substance content is about 0.6 mg / L for 210 mg / L of source water, and the transparency is 30 for 1 degree of source water. In addition to the extremely good result, the treated water is supplied to the next treatment tank by using a single drop pump system that uses only one feed pump 2P. In addition, it was possible to produce while reducing the size and to reduce the running cost.
[0043]
  Further, in this purification process, the water purifier A provided with the defoaming device 70 having the above-described configuration in each tank removes the impurities in the source water and the deposits on the filter member by adsorbing the bubbles generated in each tank. Thus, the processing load for each tank can be reduced and the purification performance can be improved efficiently.
  In addition, a plurality of defoaming devices 70 installed in each tank are connected and configured in series, and the liquid after defoaming is joined and recirculated into the source water, so that it can be manufactured with a simple and inexpensive configuration. In addition, it is advantageous in that the detergent component can be effectively used as a foam generating agent that promotes foam generation while preventing the detergent components from being discharged and discharged to prevent adverse effects such as environmental pollution.
[0044]
  In addition, the source water tank 2 and each treatment tank 1 can be constructed in a compact and well-structured manner with the above-described arrangement on the machine base 1a so that the water purifier A having the source water tank 2 can be produced in a compact manner. There is an advantage that it can be carried out easily and well, and it can be suitably installed in the car wash device 9 and the fueling stand 9S as shown in FIGS. There are features.
[0045]
  Next, with reference to FIGS. 6 and 7, among various usage modes of the water purifier A configured as described above, it has been difficult to install in relation to the performance of the conventional water purifier and the installation location, The case where it installs and uses in the oiling stand 9S is demonstrated.
  In the fueling station 9S of the illustrated example, 9a is a building, 9b is a canopy (hanging roof) that protrudes from the building 9a, 9c is a retaining wall that surrounds the site, and 9d is a waterway in a gutter. , 9e are guide water channels for guiding the drainage to the water channel 9d.
  Then, the drainage and the like are collected and accommodated in the source water tank 22 and the source water settling tank 25 described above, which are embedded in the site through the guide water channel 9e.
  In addition, a car wash device 9 is generally installed at the corner portion of the fueling station 9S. The illustrated car wash device 9 is a movable car wash device that moves back and forth along a rail 9R via a wheel on a laid rail 9R.
[0046]
  In the fueling station 9S as described above, the water purifier A is installed in the car wash device 9 to purify the source water stored in the source water tank 22 where the rain water in the site and the car wash drain used in the car wash device 9 are stored. Next, an embodiment will be described in which the water is treated as waste water and is once stored in the treated water storage tank 29 which is similarly embedded and reused as car wash water and other water.
  When the car wash device 9 is movable as in the illustrated example, the water purifier A may be installed on a frame 90 constructed above the car wash device 9 as shown in FIG.
  That is, the base frame 90 has a support frame 91, a ceiling frame 92, and the like rigidly framed so as to surround the side and upper side of the car wash device 9 in a gate shape, and has a well-known conventional structure in the gate shape. The movable type car wash device 9 can be moved and passed during car wash.
[0047]
  Then, by mounting and fixing the above-described water purifier A on the ceiling frame 92 of the underframe 90, the water purifier A is installed in a plane in the fueling stand 9S using the space where the car wash apparatus 9 is installed. It is designed so that it can be installed stably without requiring space.
  The source water collected in the source water tank 22 or the like can be smoothly subjected to the water purification treatment as described above on the car wash device 9 by the water purification apparatus A, and the purified treated water can be stored in the treated water storage tank 29. The treated water in the treated water storage tank 29 can be sent to the car wash device 9 and ejected from a car wash nozzle (not shown) provided in the car wash device 9 to be reused as car wash water.
[0048]
  Therefore, the water purifier A used as described above is compact and lightweight, and has a high-performance water purifying capacity, so it can be easily and easily installed on the fueling station 9S. Another feature is that expenses such as water charges can be significantly reduced.
  The water purifier A configured as described above may be installed and fixed on the canopy 9b using the canopy 9b, or may be installed inside the retaining wall 9c as shown in FIG. In addition, the installation work of the water purifier A can be easily performed, and the installation cost and running cost can be reduced.
[0049]
【The invention's effect】
  The present invention configured as described above has the following effects.
  sourceIn the state where water is temporarily stored in the source water tank, the water is pumped to the main aeration tank by the feed water pump, and the lower side from the main aeration tank.WhereBy supplying water to the physical tank and the source water tank by the head-down method, the treatment with microorganisms in each tank and the aeration process in the main aeration tank are performed well while slowly recirculating the source water, and the running cost is low Provided is a water purification apparatus that can accurately perform purification treatment and that can be manufactured inexpensively with a simple configuration.
  Moreover, by providing the main aeration tank between the source water tank and the treatment tank, it is possible to increase the water storage treatment capacity of the water purifier and to reduce the treatment load of the treatment tank..
[0050]
  placeWhen cleaning the filtering member in the physical tank, the adhering matter adhering to the filtering member by rotating the filtering member is well shaken off by the agitation and rotation of the filtering member in water, and is centrifuged. The deposits released in the direction pass through the divider.FastSince it flows down quickly, it can be discharged accurately and promptly in a state in which the adhered matter once removed is prevented from reattaching to the filter member.
[0051]
  FilterRotate excess member as string or wireOn the axisBy densely planting to form a rotary filter body, it is possible to promote adhesion of microorganisms and colonization of microorganisms while performing a high-performance water purification operation with a simple and inexpensive structure..
[Brief description of the drawings]
FIG. 1 is a front view of a water purification device according to the present invention, partially broken away.
FIG. 2 is a plan view of FIG.
FIG. 3A is a side view of FIG. (B) is sectional drawing of a tile piece tank.
FIG. 4 is a circuit diagram showing the configuration of FIG. 1 and the form of treatment of source water.
FIG. 5 is a cross-sectional view showing a configuration of a filtration tank.
FIG. 6 is a plan view showing an embodiment of a fueling stand.
FIG. 7A is a front view in which a water purifier is installed in a car wash device. (B) is a side view of (A).
[Explanation of symbols]
        1 Processing tank
        1a machine stand
        1C control panel
        2 Source water tank
        2a Main aeration tank
        2P water supply pump
        3 Ozone generator
        4 Third processing tank (filtration tank)
        4T tank body
        4R Leakage gap
        5 First treatment tank (charcoal tank)
        5a Charcoal fragments (charcoal)
        6 Second processing tank (tile piece tank)
        6a Fragment
        5T, 6T auxiliary tank
        7 discharge pipe
        8,8a Air supply
        15 Divider
        22 Source tank
        25 Source water settling tank
        27 Discharge pump
        40 Rotating filter
        41 Rotating shaft
        43 Filtration member
        50,60 connecting pipe
        70 Defoaming device
        A water purifier
        h, H, H1 head

Claims (2)

A source water tank for temporarily reserving the raw water (2), processing for accommodating the filter member (43) therein, to purify process by microorganisms supplied with raw water from the source water tank (2) in water purification device for purifying tank (4) connecting the processing water, provided the primary aeration tank (2a) for aeration of the raw water between the raw water tank (2) and the processing tank (4) The processing tank (4) supports the rotary shaft (41) in the vertical cylindrical tank body (4T) so as to be rotatable in the vertical direction, and is flexible around the rotary shaft (41). And a rotary filter body (40) formed by attaching a filter member (43) made of a string-like or linear member in a radially dense manner, and is mainly supplied from a source water tank (2) by a water absorption pump (2P). while water in the aeration tank (2a), treatment of the lower flow side from the main aeration tank (2a) Tank (4) and the processing tank (4) and the source water tank (2) and linked to allow drainage and recirculation by water can flow down fashion by sequentially fall, and a treated water source water tank (2) treatment tank ( 4) Water purification equipment that purifies while circulating between them. The partition cylinder (15) is inserted into the cylindrical tank body (4T) of the treatment tank (4) with a leakage gap (4R), and the rotary filter (40 ) is inserted into the partition cylinder (15). ) water purification device 請 Motomeko 1 provided so as to be stirred rotate.

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