JP3670391B2 - Water purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water purifier that includes a plurality of treatment tanks having different treatment tanks, and purifies treated water from a lower-side treatment tank through a source water tank installed on the upper 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]
A water purifier according to the present invention for solving the above-mentioned conventional problems is a plurality of first treatment tanks 5 and second treatment tanks 6 that perform a purification treatment action by microorganisms from the first supply side of source water. In the water purifier A that purifies the source water by connecting the treatment tank 1 and the ozone tank 4 that performs ozone treatment by supplying ozone to the lower side of the treatment tank 1, the source water is placed on the upper side of the treatment tank 1. A source water tank 2 is provided for storing water, and water is supplied from the source water tank 2 to the first tank 5 by the water absorption pump 2P, and the lower processing tank is connected to the first processing tank 5 so as to be drainable by a falling flow method. and the processing tank 1 of the like first processing tank 5 and the second treatment tank 6, by selectably supplying air and ozone, aeration process while circulating the treated water in the treatment tank Auxiliary tank 5T performing ozone treatment, a 6T are characterized by being parallel in each separate.
[0005]
Second , it is characterized in that the treated water drained from the ozone tank 4 installed on the lower side of the treatment tank 1 is returned to the source water tank 2 and repeatedly purified to be purified.
[0006]
Third , the treatment tanks 1 and the ozone tank 4 are arranged on one side and the source water tank 2 and the like are provided on the other side, and these are integrally configured on one machine base. .
[0007]
Fourth , a highly porous microbial flooring material such as charcoal 5a or zeolite is accommodated in the upper processing tank 1, and a tile piece 6a obtained by pulverizing tiles is accommodated in the lower processing tank 1 to purify the water. It features processing.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the internal structure of the water purification apparatus A according to the present invention with the cover removed. As shown in FIGS. 1 to 3, the water purification apparatus A can accommodate source water on a machine base 1a having a plan view. An upper water source tank (storage tank) 2 is installed on the uppermost side in the processing direction, and the upper side of the plurality of cylindrical container-like processing tanks 1 (5, 6, 4) fixed upright after this. A charcoal tank (first treatment tank) 5 is provided for containing charcoal 5a pulverized to an appropriate size (approximately 10 to 50 mm).
[0009]
Further, the tile on the lower side contains the tile pieces 6a pulverized to an appropriate size (approximately 10 to 20 mm) within a range in which the amount of treated water and the performance of the treatment are ensured and clogging does not occur. It is configured as a single tank (second processing tank) 6, and there is an ozone tank (third processing tank) 4 that supplies ozone generated from the ozone generator 3 to the lower side by mixing it with air in an appropriate amount. Adjacent tanks are connected in series via the connecting pipes 50 and 60, and source water supplied from the source water tank 2 by the feed water pump 2P is sent to the treatment tank 1 arranged above via the connecting pipe 20. The treated water discharged from the lower side of the treatment tank 1 is returned (returned) into the source water tank 2 through the discharge pipe 7.
[0010]
In addition, a lid 12 having a vent 11 is detachably attached to the supply port 10 that opens at the top of each processing tank 1, and a mesh-like container 15 containing a charcoal 5 a and a filter piece such as a tile piece 6 a is provided. Replacement is possible by inserting / removing from the supply port 10.
In addition, a drain 13 with a valve is provided at the bottom of each processing tank 1 to discharge accumulated matter accumulated at the bottom together with water in the tank as needed, so that the inside of the tank can be cleaned in a timely manner.
The water purifier A can arrange the treatment tanks 1 on the front side of the machine base 1a so that the filter can be easily replaced and maintained, and the source water tank is located behind the tanks. By installing 2 in the width direction of the machine body, the machine body is made compact and the apparatus is downsized while securing a sufficient amount of source water.
[0011]
The charcoal tank 5 of the processing tank 1 is connected to the water supply end of the connecting pipe 20 on the upper one side thereof to open a water supply port 5K, and is formed between the bottom water supply port 5S as a charcoal 5a accommodating portion. ing.
Further, the tile tank 6 is provided with a water supply port 6K at a position lower than the water supply port 5K of the charcoal tank 5 by a drop h, and is connected to the water supply port 5S via a connecting pipe 50, and is substantially the same as the water supply port 5S. A water supply port 6S is opened at the same height and communicates with the bottom of the ozone tank 4 by a connecting pipe 60, and a predetermined amount of tile pieces 6a are accommodated by a configuration described later.
[0012]
On the other hand, the ozone tank 4 is provided with a discharge pipe 7 by opening the water supply port 4 </ b> S provided at the upper part thereof at a position lower than the water supply port 6 </ b> K of the tile tank 6 by a drop H. Is communicated with the reflux port (water supply port) 2K of the source water tank 2.
In the ozone tank 4, a gas pipe 30 having a number of nozzle holes communicating with the ozone generator 3 is provided on the upper portion of the water supply port 4 </ b> K spaced apart from the lower portion by a predetermined distance. The ozone gas is supplied in the state of a large number of small bubbles from the bottom of the inside 4.
[0013]
The water supply end of the discharge pipe 7 connected to the water supply port 4S is installed 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 a 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.
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 pump 8 and the like so that they can be manually operated and automatically controlled.
In addition, as shown in FIG. 1, the ozone generator 3 and the air pump 8 are accommodated and installed by effectively using the space in the box of the control panel 1C so that the equipment can be protected and the apparatus can be made compact. ing.
[0014]
As described above, each of the tanks connected by the drop flow method is provided with an attachment device and equipment described below.
That is, as shown in FIG. 4, the source water tank 2 is pumped by a source water pump 23 from a source water tank 22 in which source water is stored at an appropriate source water location to a water inlet 21 opened above the water inlet 2K. The water supply pipe 26 of the source water settling tank 25 for precipitating the generated source water is connected.
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 batch-processed by the processing method described later in the processing tank 1 described above. After the purification treatment, the treated water in the source water tank 2 is discharged by a discharge pump 27 through a discharge pipe 28 to a treated water storage tank 29 that is appropriately installed outside the apparatus.
[0015]
Further, the charcoal tank 5 and the tile tank 6 suck in treated water from below by circulation pumps 5P and 6P and repeatedly reduce the treated water from above, and also have an air delivery having a plurality of nozzle holes of an air pipe 80 connected to the air pump 8. Auxiliary tanks (Tack tanks) 5T and 6T for the back treatment are installed in the lower part, and air is sent in the form of fine bubbles from the bottom parts of the charcoal tank 5 and the tile tank 6 so that the charcoal in the tank The microorganisms that live on the filter body such as 5a and the tiles 6a are activated, and the decomposition of the organic matter can be promoted.
[0016]
The auxiliary tanks 5T and 6T share the air pipe 80 and are connected to the ozone generator 3 so as to be switchable. By operating a switching valve (not shown), ozone is added to the treated water in the auxiliary tanks 5T and 6T. Are supplied to each of the charcoal tanks 5 and the tile tanks 6 while the ozone treatment is performed slowly over time by feeding the small-capacity pumps 5P and 6P. The circulation is repeated.
This prevents ozone from being directly supplied to the charcoal tank 5 and the tile tank 6 while performing ozone treatment along with the back-up treatment of the treated water in the auxiliary tanks 5T and 6T provided separately. This can be performed easily and satisfactorily, and the processing load on the charcoal tank 5 and the tile tank 6 can be reduced, and the apparatus can be downsized.
[0017]
In this embodiment, ozone is distributed by the auxiliary tanks 5T and 6T and the ozone tank 4 to perform ozone dispersion treatment, so that the ozone concentration supplied to the treated water is about 100 to 150 PPM (conventional treatment equipment uses ozone). The concentration is 1000 to 2000, and the exhaust ozone treatment is necessary after the ozone treatment.) The effective concentration of microorganisms is killed by mixing the air and producing an aeration effect. In an activated state, decomposition of colored components of contaminants in water, removal of germs and oxidation of iron are controlled to control the generation of iron sulfide that causes sludge.
The above process is performed treated water flame decomposition component, advance is forced to a state of increased oxidative degradation to biodegradation with ozone, it is particularly supplied to the charcoal tank 5 and tiles tank 6 Here, the treatment of the organic matter or the like decomposed to be easily adsorbed by the above treatment is performed well. Therefore, there is an advantage that the source water contaminated with chemical substances such as agricultural chemicals and detergents can be treated well.
[0018]
In addition, the charcoal tank 5 contains therein the charcoal 5a which is made into a single grain of about 10 to 20 mm so as to allow water to pass therethrough, and the ozone tank 4 imposes a treatment load on the surface of the charcoal 5a and the pores inside. Particularly, organic substances are favorably adsorbed among the contents of the source water in a reduced state.
And in this treatment process, microorganisms such as daphnia that decompose the organic matter can be well generated and settled, and can be suitably grown, and in the state of promoting the adsorption and decomposition of the organic matter of the source water by the charcoal 5a and the adsorption of iron, Water is supplied from the water supply port 5S located at the next to the next tile tank 6.
[0019]
Further, as shown in FIG. 3B, a stainless steel cylindrical container 15 having a large number of water passage holes 15b is detachably installed in the tile tank 6 through legs 15a. Inside the waste tile or the tile that is discarded in the unglazed state is effectively used, and is stacked and accommodated so that it can be passed through in a state of being crushed to about 10 to 20 mm into a single grain. .
Since the tile 6a is a solidified porous soil, it provides a suitable expansion of microorganisms, and the treated water is well purified by the microorganisms activated on the spot, and is not treated with the charcoal 5a in the previous step. It is characterized by being fed to the next ozone tank 4 while absorbing and removing various components in the pores.
[0020]
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 a second treatment tank is opened, and an inexpensive purification device is provided. There are advantages such as being able to.
On the other hand, since the ozone tank 4 is supplied with ozone as fine bubbles from below by the gas pipe 30 with respect to the treated water supplied from the bottom, the treated water at the initial stage of supply supplied from the water supply port 4K is given priority. In this state, the treated water supplied from the water supply port 4K is treated well and the residual ozone is low from the water supply port 4S while performing ozone treatment such as decolorization, deodorization sterilization, and oxidative organic decomposition. The processing load of the processing tank 1 that is circulated and performed next is lightened so as to be performed satisfactorily.
[0021]
The treated water sent from the ozone tank 4 may be sent to the source water tank 2 through the discharge pipe 7 set in a long path. In this case, the residual ozone is in a certain condition while reaching the source water tank 2. Since the residual ozone is also reduced while being circulated and stored in the source water tank 2 from the water supply port 2K, the residual ozone of the circulated treated water sent from the source water tank 2 to the charcoal tank 5 is reduced. There is no or very little, and it is possible to prevent adverse effects on microorganisms that live in the lower charcoal tank 5 or the like.
[0022]
The purifier A configured as described above is configured to supply a predetermined amount of source water stored in the source water tank 2 to the charcoal tank 5 by the water supply pump 2P in accordance with a preset command from the control panel 1C. The treated water in each tank is gently fed into the tile tank 6 and the ozone tank 4 on the lower side and the above-mentioned source water tank 2 where the water level is lowered by the above-described head-down method represented by the heads h, H, H1. Then, the water is sent again from the source water tank 2 by one water pump 2P, and the circulation process is repeated an appropriate number of times within a predetermined time. Then, the set purified water is discharged from the source water tank 2 to the discharge pump 27 A series of purification processes can be satisfactorily completed by discharging to outside the machine.
[0023]
Thereafter, the source water in the source water tank 22 is supplied again to the source water tank 2 according to the set command, and the purification process is continuously performed in the same manner as described above.
In such a purification process, the source water is supplied from the source water tank 2 to the uppermost processing tank by the feed water pump 2P, and pumping of each lower processing tank is avoided by the pump. Since the water is discharged by such a head-down method and is naturally discharged and is circulated gently a predetermined number of times, a series of treatments are performed in a state where each purification treatment is sufficiently performed in each treatment tank 1. Can be performed easily and satisfactorily.
[0024]
Further, when the water purification apparatus A is in operation, water supply can no longer be performed due to a trouble with the water supply pump 2P, so that an appropriate water level can be maintained in the charcoal tank 5, the tile tank 6, and the ozone tank 4. By drying the filter body due to the emptying of each of these treatment tanks 1, effective microorganisms can be killed or generation of gas components can be satisfactorily prevented.
[0025]
Note that source water tank 2 source water carrying capacity 1500 l about the pear according to the illustrated example where was which was 10 to 15 times the circulation processing within 3-5 hours, chemical oxygen demand source water 370 mg / l to treated water is 6.6 mg / l, n-hexane extract content of about 0.6 mg / l to the source water 210 mg / l, also the perspective of the relative once the source water 30 degrees or more exceedingly In addition to the good results, the treated water was supplied to the next treatment tank by using a single feed water pump 2P and was sent to the next treatment tank, so the configuration of the purification device A was simplified, inexpensive and downsized. As well as being able to produce while trying, we were able to reduce running costs.
[0026]
Moreover, the source water tank 2 and each processing tank 1 can be manufactured in a compact and well-structured purification apparatus A having the source water tank 2 by configuring the above-described arrangement on the machine base 1a. There is an advantage that the apparatus can be transported, installed, and the like easily and satisfactorily.
In this embodiment, the treatment water is circulated and treated in batches. However, by expanding the treatment capacity of each treatment tank and the like, it is continuously possible from the upper side without circulating the source water. You may make it process and drain.
[0027]
【The invention's effect】
The present invention configured as described above has the following effects.
According to the first aspect of the present invention, the source water is once stored in the source water tank, and is fed to the first treatment tank by the feed pump, and is fed from the first treatment tank to each of the lower tanks by the drop flow method. Since an auxiliary tank is attached to each treatment tank, etc., and a separate back-up treatment is performed, water can be fed slowly in each tank to allow sufficient treatment with microorganisms and treatment with ozone, and purification with low running costs It is possible to provide a low-priced water purifier with a simple configuration while performing the treatment satisfactorily.
[0028]
Ozone is supplied to the auxiliary tank provided together for each processing tank containing the charcoal and tile pieces like, circulating reflux to each processing tank conducted ozone treatment over slowly time treated water in the auxiliary tank Thus, while preventing the harmful effects of supplying ozone directly to each treatment tank, the ozone treatment is performed easily and well together with the back water treatment of the treatment water, reducing the treatment load on the treatment tank and reducing the size of the apparatus. be able to.
[0029]
According to the second aspect of the present invention, the source water is supplied from the source water tank to the uppermost processing tank by the feed water pump, and the pumping of the lower processing tanks to the lower processing tank is avoided and the water is supplied by the head-down method. Therefore, the purification treatment in each treatment tank can be sufficiently performed, and a series of treatments can be performed satisfactorily and the water purification apparatus can be downsized.
[0030]
According to the invention of claim 3 , the purification tank having the source water tank is compactly gathered by integrally providing the source water tank on the other side of each ozone treatment tank and the treatment tank arranged in one side of the machine base. It can be manufactured well, and the apparatus can be transported and installed easily and easily.
[0031]
According to the invention of claim 4 , after treating the treated water in the treatment tank containing the highly porous microbial flooring material such as the charcoal on the upper side, the treated water is favorably improved by the lower treatment tank containing the tile fragments. Water purification treatment can be performed.
In addition, the tile pieces that are housed by crushing the tiles for the above treatment provide a suitable expansion floor for microorganisms, activate the microorganisms, purify the treated water well, and open up the use of effective disposal of waste tiles. However, an inexpensive purification device can be provided.
[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 tank.
FIG. 4 is a circuit diagram showing the configuration of FIG. 1 and the form of treatment of source water.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing tank 1a Machine stand 1C Control panel 2 Source water tank 2P Water supply pump 3 Ozone generator 4 3rd tank (ozone tank)
5 First tank (charcoal tank)
5a Charcoal 6 Second tank (tile tank)
6a tile 5T, 6T auxiliary tank 7 discharge pipe 8 air pump 27 discharge pump 50, 60 connecting pipe A water purifier h, H, H1 head

Claims (4)

A plurality of treatment tanks (1) composed of a first treatment tank (5), a second treatment tank (6) and the like that perform a purification treatment action by microorganisms from the upper side of the source water supply, and the lower side of the treatment tank (1) In a water purifier (A) that purifies source water by connecting an ozone tank (4) that is supplied with ozone to perform ozone treatment, a source water tank that stores the source water on the upper side of the treatment tank (1) (2) is provided, and water is fed from the source water tank (2) to the first tank (5) by the water absorption pump (2P), and the lower processing tank is drained from the first processing tank (5) by the head-down method. The processing water in the processing tank is connected to the processing tank (1), such as the first processing tank (5) and the second processing tank (6), so that air and ozone can be selected. and aeration process while circulating Auxiliary tank performing Dzong process (5T), water purification device comprising features to each other (6T). The water purifier according to claim 1, wherein the treated water drained from the ozone tank (4) installed on the lower side of the treatment tank (1) is returned to the source water tank (2) and repeatedly circulated for purification treatment. The processing tanks (1) and the ozone tanks (4) are arranged on one side and a source water tank (2) is provided on the other side, and these are integrally configured on one machine base. Or 2 water purifier. A tile piece (6a) in which a highly porous microbial flooring material such as charcoal (5a) or zeolite is accommodated in the upper processing tank (1) and the tiles are crushed in the lower processing tank (1). The water purifier according to claim 1, 2 or 3, wherein the water purifying treatment is carried out.

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