JP4874687B2 - Circulating flush toilet - Google Patents

Description

  The present invention includes a water receiving tank provided with a transfer means for transferring the water to be treated, disposed below the toilet bowl, a purification device for purifying and discharging the water to be treated transferred from the water receiving tank, and above the water receiving tank. A circulating water channel comprising a water supply tank provided with a flow-down means for flowing down the treated water introduced from the purification device to the water receiving tank at least in use is constituted, and the treated water is circulated and purified in this circulating water channel It relates to a circulating flush toilet.

  As a conventional circulating flush toilet that purifies toilet sewage as treated water, for example, a circulating water channel combining a known purification device and ozone treatment means is constructed, and the treated water is circulated and sent to this circulating water channel There is a circulating flush toilet that performs purification treatment (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2005-60981 (page 2, FIG. 2)

  However, in Patent Document 1, since the water to be treated is constantly purified by circulating and transporting a single circulation channel including the purification device and the ozone treatment means, regardless of whether ozone treatment is necessary or not, The entire amount of water to be treated was subjected to ozone treatment along with the passage of the ozone treatment means, and ozone that might adversely affect the human body was constantly generated and accompanied by danger.

  The present invention has been made paying attention to such problems, and provides a circulating flush toilet that can safely purify treated water using ozone treatment that may adversely affect the human body as appropriate. With the goal.

In order to solve the above-mentioned problems, a circulating flush toilet according to claim 1 of the present invention includes a water receiving tank provided below the toilet bowl with transfer means for transferring the water to be treated, and a transfer from the water receiving tank. A purification tank that purifies and discharges the treated water, and a water supply tank provided with a flow-down means that is disposed above the water receiving tank and that causes the water to be treated introduced from the purification apparatus to flow down to the water receiving tank at least in use. A circulating water flush toilet that circulates water to be treated and purifies the treated water in the first circulating water channel,
A branch pipe which is provided at a predetermined location of the first circulation water channel and which can branch at least a part of the water to be treated; an ozone treatment means which is connected to the branch pipe and which treats the water to be treated; and the ozone treatment And a supply pipe for supplying the treated water ozone-treated by the means to the first circulating water channel, and a second circulating water channel is formed at a predetermined position of the second circulating water channel. Introducing means for introducing treated water into the second circulation channel ;
Within the specified time period specified in advance, the flow-down means forcibly causes the water to be treated to flow from the water tank to the water-receiving tank, and the introduction means removes the water to be treated in the first circulation channel. It is characterized by being introduced into two circulation channels .
According to this feature, the introduction means for combining the first circulation water channel in which the purification device is configured and the second circulation water channel in which the ozone treatment unit is configured to circulate and supply the water to be treated to the second circulation channel. By being provided, the introduction means can be started and stopped according to the necessity of ozone treatment, and the treated water can be safely purified using ozone treatment that may adversely affect the human body.
In addition, within the specific time zone, the treated water can be purified in the first circulating water channel, and the treated water can be introduced into the second circulating water channel and subjected to ozone treatment. It can be treated with ozone.

The circulating flush toilet according to claim 2 of the present invention is the circulating flush toilet according to claim 1 , wherein the branch pipe that enables branching of the water to be treated is connected to the water tank. It is characterized by that.
According to this feature, the branch pipe is connected to the water tank downstream of the purification device in the first circulation channel, and the treated water after being purified to a certain extent by the purification device is introduced into the second circulation channel. Since the ozone treatment can be performed, the load applied to the ozone treatment can be reduced.

The circulating flush toilet according to claim 3 of the present invention is the circulating flush toilet according to claim 2 , wherein the branch pipe is connected to the lower part of the water tank and the upper part of the water tank. The supply pipe is connected, and the downflow pipe connected to the downflow means is connected to the water tank above the branch pipe and below the supply pipe.
According to this feature, not only the entire amount of water to be treated in the water tank can be treated with ozone, but also a part of the treated water subjected to ozone treatment is placed in a region below the downstream pipe as a dead area in the first circulation channel. Since it can be stored as stagnant water, the deodorizing / sterilizing effect of the treated water that has been subjected to ozone treatment can be imparted over a long period of time to the treated water that is circulated and transferred through the first circulation channel except for the specific time period.

A circulation flush toilet according to claim 4 of the present invention is the circulation flush toilet according to any one of claims 1 to 3 , wherein chromaticity detection means is provided upstream of the ozone treatment means. The introduction means can be started and stopped according to the chromaticity of the water to be treated detected by the chromaticity detection means.
According to this feature, according to the chromaticity of the water to be treated detected by the chromaticity detection means, it is possible to switch whether to introduce the water to be treated into the ozone treatment means, so that efficient ozone treatment is possible. Become. In particular, in the invention cited in claim 2, since the ozone treatment is performed only in a specific time zone and when the chromaticity of the water to be treated is a predetermined value or more, it is further efficient.

The circulating flush toilet according to claim 5 of the present invention is the circulating flush toilet according to any one of claims 1 to 4 , wherein the purification device separates and discharges at least water to be treated by solid-liquid separation. A solid-liquid separation tank is provided, and separately from the first circulation water channel, there are an unloading means for carrying out the concentrate after solid-liquid separation of the water to be treated in the solid-liquid separation tank, and a storage tank for storing the concentrate. It is comprised and the introduction pipe | tube which can introduce a concentrate into the said 2nd circulation water channel is provided in the predetermined height position of this storage tank, It is characterized by the above-mentioned.
According to this feature, the first circulating water channel that is lost as a concentrate or evaporated by introducing the concentrate stored in the storage tank into the second circulating water channel, returning it to the first circulating water channel after ozone treatment. The amount of water to be treated can be maintained without supplying extra water.

The circulating flush toilet according to claim 6 of the present invention is the circulating flush toilet according to claim 5 , and includes a water amount detecting means for detecting a predetermined amount of water in the storage tank, and a predetermined height of the storage tank. An introduction valve capable of opening and closing the introduction pipe provided at a position, and the introduction means introduces the treated water in the first circulation channel into the second circulation channel. And when the said water quantity detection means detects the predetermined water quantity of the said storage tank, the said introduction valve will be in an open state.
According to this feature, the concentrate can be stored up to a predetermined amount of water in the storage tank, and the water to be treated is ozone-treated, and at the same time, the concentrate is introduced into the second circulation channel and ozone-treated, and returned to the first circulation channel. Can do.

The circulating flush toilet according to claim 7 of the present invention is the circulating flush toilet according to claim 5 or 6 , further comprising a bio-processing means for bio-processing the concentrate deposited in the storage tank. It is characterized by being.
According to this feature, the concentrate of the water to be treated is bioprocessed by the bioprocessing means, so that the process of pumping the concentrate can be greatly reduced, and the purification process can be performed with a long-term circulating flush toilet alone. .

The circulating flush toilet according to claim 8 of the present invention is the circulating flush toilet according to any of claims 5 to 7 , wherein the water receiving tank is filled with water to detect a full water level of the water to be treated. A position detecting means is provided, and the conveying means for conveying the concentrate is activated by the full water level detecting means.
According to this feature, since the concentrate is transported only when the amount of water to be treated is increased by using the toilet, the water to be treated can be efficiently concentrated in the solid-liquid separation tank.

The circulating flush toilet according to claim 9 of the present invention is the circulating flush toilet according to any of claims 1 to 8 , wherein the first flushing toilet detects a high water level in the water tank. A water level detection means and a second water level detection means for detecting a low water level are provided, and the transfer means for transferring the water to be treated is activated by the second water level detection means and stopped by the first water level detection means It is characterized by doing.
According to this feature, since the transfer means for transferring the water to be treated performs an intermittent operation that starts and stops according to the water level of the water tank, power required for circulating water to be treated can be saved.

A circulating flush toilet according to claim 10 of the present invention is the circulating flush toilet according to any one of claims 1 to 9 , wherein ozone is introduced from the ozone treatment means toward the purification device. An introduction pipe is provided.
According to this feature, by introducing a part of ozone to the purification device side and performing the ozone treatment, the periphery of the purification device is deodorized and sterilized to be sanitary.

The portable circulating flush toilet according to claim 11 of the present invention is characterized in that the circulating flush toilet according to any of claims 1 to 10 is portable.
According to this feature, it can be installed not only in mountainous areas or remote islands where water supply or sewerage is not installed, but also in any place even in the event of a disaster in which a permanent toilet becomes unusable due to failure of the water supply or sewerage Circulating flush toilets can be installed.

  Examples of the present invention will be described below.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a schematic view showing a purification process in a specific time zone of a circulating flush toilet. FIG. 2 is a schematic diagram showing the purification process in a time zone excluding a specific time zone. FIG. 3 is a perspective view showing a flow state of the water to be treated in the water tank. 1 and 2, the dotted line indicates a compressed air or ozone gas conduit, and the alternate long and short dash line indicates a signal line.

  First, as shown in FIG. 1, a portable circulating flush toilet 1 (hereinafter abbreviated as “toilet 1”) in this embodiment is used to purify toilet sewage as treated water into a purifier 2 and ozone treatment means described later. The ozone treatment chamber 7 is circulated and transferred to purify it, and the treated water is reused as toilet wash water. Incidentally, the water to be treated includes all water before purification treatment or ozone treatment described later, water being treated, and treated water.

  The outline of the apparatus configuration of the toilet 1 will be described. A water receiving tank 6 provided with a first pump 20 as a transfer means for transferring water to be treated and disposed below the toilet bowl 8 and disposed above the water receiving tank 6. The purification device 2 that purifies and discharges the water to be treated transferred from the water receiving tank 6, and is similarly disposed above the water receiving tank 6, so that the water to be treated introduced from the purification device 2 can be discharged to the water receiving tank 6. A water supply tank 3 and a water supply pipe 12 and a wash water pipe 13 as a downflow pipe that allow the water to be treated to flow from the substantially intermediate height position of the water supply tank 3 toward the water receiving tank 6. A circulation channel is formed (see the white arrow in the figure).

  Further, a branch pipe 10 provided at the lowermost part of the water tank 3, an ozone treatment chamber 7 connected to the branch pipe 10 for ozone treatment of the water to be treated, and water to be treated which has been subjected to ozone treatment in the ozone treatment chamber 7. A second circulating water channel comprising a supply pipe 11 for supplying the first circulating water channel to the first circulating water channel described above is configured, and a second pump 21 serving as an introducing means that enables the water to be treated to be circulated and fed to the second circulating water channel. Is provided (see black arrow in the figure). The ozone treatment chamber 7 is partitioned from the purification device 2 and the water tank 3 by a partition wall (not shown).

  Furthermore, a timer T is connected to a water supply valve 12a as a water supply means that can open and close the water supply pipe 12, and the water supply valve 12a opens and closes in a specific time zone specified in advance by the timer T. Yes. The branch valve 10 a and the second pump 21 that can open and close the branch pipe 10 in synchronization with each other are also opened and closed during a specific time period specified in advance by the timer T.

  Next, the configuration of the purification device 2 will be described. The purification device 2 is composed of a solid-liquid separation tank 4 and a microorganism treatment tank 5 which are partitioned by a partition wall 25 and communicate with each other via a weir 25a.

  The solid-liquid separation tank 4 includes a screen 4a that is installed so as to cover the dam portion 25a and allows the treated water to be introduced therethrough, and a diffuser hole 23 that generates bubbles rising along the surface of the screen 4a. The treated water is separated into solid and liquid and discharged.

  The microorganism treatment tank 5 is partitioned from the water supply tank 3 by a partition wall 26, and a microorganism-immobilized carrier 5a that allows the introduced treated water to pass through, and an aeration hole 24 that generates bubbles toward the microorganism-immobilized carrier 5a. The upper hole 27a and the lower hole 27b communicate with each other inside and are provided with a duct 27 installed in the vertical direction. The treated water is treated with microorganisms and discharged.

  Next, the purification process flow of the toilet 1 at night as a specific time zone (for example, 12 hours from 18:00 to 6:00) will be described with reference to FIG. At night, the toilet 1 is used less frequently than in the daytime, which will be described later, and toilet sewage as treated water generated by using the toilet 1 in the daytime is circulated and transferred through the first circulation channel and the second circulation channel. Purified.

  In a specific time zone (18: 00 to 6:00) specified in advance by the timer T, the second pump 21 serving as the introducing means connected to the timer T is activated and the branch valve 10a is opened and synchronized. Thus, the water supply valve 12a of the water supply tank 3 is opened. By this operation, the water to be treated is circulated and transferred through the first circulation channel and the second circulation channel constantly at night.

  First, the circulating transfer of the water to be treated in the first circulation channel will be described. The water to be treated in the water feeding tank 3 is naturally forced toward the water receiving tank 6 installed below via the water feeding pipe 12 by the head pressure. Flow down. When the water level in the water tank 3 is lowered by the flow of the water to be treated and reaches a predetermined low water level, the first pump 20 is activated by the low water level signal detected by the second water level detection means 28b, and the water to be treated is solid liquid. It is transferred to the separation tank 4.

  When the water level of the water tank 3 rises by this transfer and reaches a predetermined high water level, the first pump 20 is stopped by the high water level signal detected by the first water level detecting means 28a. Thereafter, the first pump 20 is configured to perform intermittent operation that repeats starting and stopping according to the water level of the water tank 3 as described above.

  Thus, since the 1st pump 20 which transfers to-be-processed water performs the intermittent driving | operation which starts and stops according to the water level of the water-feeding tank 3, the power required for the circulating water-supply of to-be-processed water can be saved.

  In the solid-liquid separation tank 4, the water to be treated passes through the fine porous screen 4a disposed around the dam portion 25a, and the water to be treated which has been solid-liquid separated and passed through the screen 4a is a microorganism which will be described later. It moves to the processing tank 5, and solid content is capture | acquired by the screen 4a.

  The solid content trapped in the screen 4a is diffused by the blower 22 through the air diffusion holes 23 and peeled off by the bubbles rising along the surface of the screen 4a, and the convection generated in the solid-liquid separation tank 4 and its weight To settle downward and concentrate over time to produce a concentrate as described below.

  Next, the water to be treated that has passed through the solid-liquid separation tank 4 passes through the weir 25 a of the partition wall 25 and is introduced into the microorganism treatment tank 5.

  In the microbial treatment tank 5, the water to be treated passes through a large number of microbial immobilization carriers 5 a filled in the microbial treatment tank 5 and flows downward from above. The microorganisms fixed and attached to the microorganism-immobilized carrier 5a by this flow capture the organic component contained in the water to be treated, and organically decompose it. At the same time, the microorganisms are activated by the aeration by the blower 22 through the aeration holes 24 toward the microorganism-immobilized carrier 5a, so that the microorganism processing ability can be improved.

  Thus, in the microorganism treatment tank 5, the water to be treated that has flowed from the upper side to the lower side flows into the duct 27 from the lower hole 27b of the duct 27 provided in the vertical direction, and is sent through the upper hole 27a. It is introduced into the water tank 3.

  As described above, the water to be treated in the water supply tank 3 naturally flows down toward the water receiving tank 6 installed below through the water supply valve 12a due to the water head pressure, thereby forming a first circulation water channel.

  Next, the circulating transfer of the water to be treated in the second circulating water channel will be described. By the activation of the second pump 21 connected to the timer T, the water to be treated in the water tank 3 is connected at the bottom of the water tank 3. The ozone is supplied to the ozone processing chamber 7 through the branched pipe 10 and is ozone-treated with ozone gas generated by the ozone generator 17. The treated water that has been subjected to the ozone treatment is supplied into the water tank 3 that constitutes the first circulation channel through the supply pipe 11 connected to the upper part of the water tank 3.

  As described above, the branch pipe 10 is connected to the water supply tank 3 on the downstream side of the purification device 2 in the first circulation channel, so that the solid-liquid separation is performed in the solid-liquid separation tank 4 constituting the purification device 2. Water to be treated that has been purified to a certain extent by being subjected to microbial treatment in the microbial treatment tank 5 can be introduced into the second circulating water channel and ozonized in the ozone treatment chamber 7, so that the load on the ozone treatment is kept small. I can do it.

  Moreover, by doing in this way, substantially the whole amount of water to be treated in the water tank 3 can be treated with ozone. In addition, the purified water to be treated that circulates and transports the first circulating water channel and the ozone treated water that circulates and transports the second circulating water channel are mixed by flowing and stirring in the water tank 3. And purification efficiency is increased.

  As described above, the water to be treated supplied into the water tank 3 naturally flows down to the water receiving tank 6 from the water pipe 12 connected to the water tank 3 below the supply pipe 11 and circulates in the first circulation channel. Be transported.

  As described above, the water to be treated after the ozone treatment having a larger specific gravity than the water to be treated before the ozone treatment is circulated from the supply pipe provided above the water feeding pipe to the first circulation water channel, thereby supplying the water tank. The to-be-treated water that has been subjected to ozone treatment convects efficiently and is circulated and sent in the first circulation channel.

  Further, the first circulating water channel in which the purification device 2 is configured and the second circulating water channel in which the ozone treatment chamber 7 is configured are combined, and the first circulating unit as the introduction means that enables the treated water to be circulated and sent to the second circulating channel. By providing two pumps 21, the second pump 21 is started and stopped according to the necessity of ozone treatment, and ozone treatment that may adversely affect the human body is used as appropriate to safely treat the water to be treated. It can be purified.

  Furthermore, since the water to be treated is purified in the first circulation water channel and the water to be treated can be introduced into the second circulation water channel and subjected to ozone treatment, substantially the entire amount of water to be circulated can be treated with ozone. . In particular, ozone treatment that may adversely affect the human body can be performed only within a specific time zone that is arbitrarily specified in advance by a timer T, and purification treatment that excludes ozone treatment during the daytime other than the specific time. Can improve safety.

  Furthermore, the second pump 21 can be started and stopped in accordance with the chromaticity of the water to be treated detected by the chromaticity sensor 29 serving as the chromaticity detecting means connected to the branch pipe 10. That is, when the water to be treated is relatively clean and the chromaticity is smaller than the predetermined set value, the second pump 21 is stopped and the flow of the water to be treated in the second circulating water channel is stopped. In addition, when the chromaticity is larger than a predetermined set value due to the relatively untreated water, the second pump 21 is activated and the flow of the treated water in the second circulation channel starts again.

  By doing in this way, according to the chromaticity of the to-be-processed water detected by the chromaticity sensor 29, it can switch whether to introduce the to-be-processed water into the ozone treatment chamber 7, Therefore An efficient ozone treatment is carried out. It becomes possible. In particular, as in this embodiment, ozone treatment is performed in a specific time zone at night, and is performed only when the chromaticity of the water to be treated and the specific time zone is greater than or equal to a predetermined value. .

  Further, an ozone introduction pipe 15 for introducing ozone from the ozone treatment chamber 7 toward the purification device 2 side is provided. By doing so, a part of the ozone gas is introduced to the purification device 2 side, and the ozone treatment is performed. By doing so, the periphery of the purification apparatus 2 is deodorized and sterilized to be sanitary.

  Next, as shown in FIG. 2, a cleaning process flow of the toilet 1 in the daytime (for example, 12 hours from 6:00 to 18:00) as a time zone excluding the specific time zone described above will be described. During the daytime, as will be described later, the water to be treated is circulated and transferred through the first circulation channel and purified, and is not circulated and transferred to the second circulation channel.

  By using the toilet 1 of the user, toilet sewage as treated water is stored in the water receiving tank 6 below the toilet bowl 8, and a washing water valve 13a as a downflow means is provided by operating the washing water switch S of the user. The treated water that has been treated and purified as described above as flush water for the toilet bowl 8 naturally flows down from the water supply tank 3 through the toilet bowl 8 toward the water receiving tank 6 by the water head pressure. It is stored in.

  Since the toilet 1 is frequently used in the daytime, the water level of the water tank 3 is lowered by using the washing water, and the first pump 20 is activated by the low water level signal detected by the second water level detection means 28b. The water to be treated is transferred to the solid-liquid separation tank 4 through the transfer pipe 16. By this transfer, the water level in the water tank 3 rises, and the first pump 20 is stopped by the high water level signal detected by the first water level detection means 28a. And as above-mentioned, to-be-processed water passes through the purification apparatus 2 which consists of the solid-liquid separation tank 4 and the microorganism treatment tank 5, is purified, and is the upper hole of the duct 27 provided in the upper part of the water tank 3. It falls and introduce | transduces in the water tank 3 via 27a.

  Next, as shown in FIG. 3, the flow of the water to be treated inside the water tank 3 will be described. In the daytime, there is no flow of the water to be treated in the second circulation water channel, and the height of the center of the water tank 3 is approximately the same. Since the lower area D below the water pipe 12 provided at the position is a dead area (see the shaded area in the figure), the water to be treated in the lower area D is treated with ozone at night as described above. Water is stagnating. Due to the flow of the water to be treated introduced into the water tank 3, convection is generated inside the water tank 3, and the water to be treated introduced into the water tank 3 by this convection and the ozone treatment remaining in the lower region. After the treated water is mixed, it flows down through the washing water pipe 13.

  If all the ozone-treated water to be treated is circulated and transferred to the first circulation channel, the duration of the effect of the ozone treatment will be limited. However, as in this embodiment, the ozone-treated water to be treated is limited. Since part of the treated water can be stored as stagnant water in the region D below the water pipe 12 as a dead area in the first circulation channel of the water to be treated, in the daytime when the use frequency of the toilet 1 other than the specific time zone is high In addition, the deodorizing / sterilizing effect of the ozone-treated water can be given to the treated water circulating and transported through the first circulation channel for a long time.

  In particular, with the convection of the water to be treated in the water tank 3, the stagnant water in the lower region D and the water to be treated in the upper region B above the water pipe 12 can be mixed. The effect becomes more efficient.

  Next, due to the use of the toilet 1 in the daytime, the total amount of water to be treated flowing in the first circulation channel increases, and this increased amount is accumulated in the water receiving tank 6. When the full water level detection means 30 provided in the water receiving tank 6 detects a predetermined full water level, the air valve 31 is opened and the solid content of the water to be treated as a concentrate accumulated in the lower layer of the solid-liquid separation tank 4 However, the compressed air supplied by the blower 22 serving as the unloading means flows into the air pipe 19 and is unloaded from the solid-liquid separation tank 4 toward the storage tank 9 due to the air lift effect, separately from the first circulation water channel. It is stored in the provided storage tank 9. After a predetermined time set by a timer (not shown), the air valve 31 is closed, and the carry-out of the concentrate ends. The carry-out of the concentrate by the air lift is intermittently operated according to the water level of the water receiving tank 6.

  By doing in this way, since the concentrate is conveyed only when the amount of treated water is increased by a predetermined amount due to the use of the toilet 1, the treated water can be efficiently concentrated in the solid-liquid separation tank 4.

  In the storage tank 9, the transported solids are accumulated over time, concentrated solids accumulate in the lower layer of the storage tank 9, and so-called scum layer is generated in the upper layer due to the physical properties contained in the toilet sewage. Thus, a so-called anaerobic layer is interposed in the intermediate layer, and the entire layer is generated. This anaerobic layer contains a large amount of anaerobic substances after the microbial treatment (aerobic treatment) in the microbial treatment tank 5 described above, and the solid content concentration is lower than that of the lower layer.

  When the above-described ozone treatment is performed at night, and when the concentrated solid content is accumulated in the storage tank 9 and the water amount detection means 33 provided in the storage tank 9 detects a predetermined amount of water, the introduction valve 14a is opened. It becomes a state.

  In this way, the concentrate can be stored up to a predetermined amount of water in the storage tank 9, and the water to be treated is ozone-treated, and at the same time, the concentrate is introduced into the second circulation channel and subjected to ozone treatment, and the first circulation channel Can be returned to.

  After a predetermined time set by a timer (not shown), the introduction valve 14a is closed, and the introduction into the ozone treatment chamber 7 is completed. The introduction of the water to be treated into the ozone treatment chamber 7 is intermittently operated when the predetermined amount of water in the storage tank 9 is reached again.

  In this way, the concentrate stored in the storage tank 9 is introduced into the second circulation channel, and after ozone treatment, the concentrate is returned to the first circulation channel to be lost as a concentrate or evaporated from the first circulation channel. The amount of water to be treated can be maintained without supplying extra water.

  In addition, the introduction pipe 14 provided in the storage tank 9 does not necessarily need to be provided at a substantially intermediate height of the storage tank 9, and may be provided at a predetermined height according to the physical properties of the water to be treated. .

  Furthermore, a discharge pipe 18 that discharges the concentrated solid content that forms the lower layer of the storage tank 9 and a discharge valve 18a that can open and close the discharge pipe 18 are provided at the bottom of the storage tank 9, and the discharged concentration The solid content is bioprocessed by bioprocessing means (not shown). An example of bioprocessing is processing using sawdust. The process using sawdust is a process in which concentrated solids are decomposed into water and carbon dioxide by the action of microorganisms contained in sawdust.

  In this way, the concentrated solid content is bioprocessed, so that the process of drawing the concentrate can be greatly reduced, and a long-term purification process using the circulating flush toilet 1 can be performed. The biotreatment is not necessarily limited to the treatment using the sawdust, and any biotreatment of the concentrated solid content may be used.

  Moreover, the circulating flush toilet 1 described above may be a portable circulating flush toilet as a whole unit. By doing in this way, it can be installed not only in mountains or remote islands where water supply or sewerage is not installed, but also in any place even when a permanent toilet becomes unusable due to failure of water supply or sewerage Circulating flush toilet 1 can be installed in

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above embodiment, the ozone treatment of the water to be treated is performed at night as the specific time zone, but the ozone treatment is not limited to the specific time zone, and the water to be treated is manually operated in the second circulation channel. It may be arbitrarily flowable.

  Moreover, in the said Example, although the night is set as the specific time slot | zone which performs ozone treatment, if the time slot | zone which uses the toilet 1 frequently is avoided, the specific time may not be night time, for example, midnight or It can be early in the morning. Furthermore, the specific time zone is not limited to the time zone specified in units of one day (24 hours) as described above, and may be, for example, the time zone of days specified in advance in units of January (30 days). In addition, it may be a time zone specified in advance in one year (365 days).

  Moreover, in the said Example, although the to-be-processed water is purified by the purification apparatus which consists of a solid-liquid separation tank and a microorganisms processing tank, a purification apparatus is an apparatus which consists of a purification tank using another well-known purification technique. It may be.

It is the schematic which shows the purification process in the specific time slot | zone of a circulation type flush toilet. It is the schematic which shows the purification process in the time slot | zone except the specific time slot | zone. It is a perspective view which shows the flow condition of the to-be-processed water in a water tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circulating flush toilet 2 Purification apparatus 3 Water tank 4 Solid-liquid separation tank 4a Screen 5 Microbial processing tank 5a Microorganism immobilization support 6 Water receiving tank 7 Ozone processing chamber (ozone processing means)
8 Toilet bowl 9 Storage tank 10 Branch pipe 10a Branch valve 11 Supply pipe 12 Water supply pipe (downflow pipe)
12a Water supply valve (flowing means)
13 Washing water pipe (downflow pipe)
13a Washing water valve (flowing means)
14 introduction pipe 14a introduction valve 15 ozone introduction pipe 16 transfer pipe 17 ozone generator 18 discharge pipe 18a discharge valve 19 air pipe 20 first pump (transfer means)
21 Second pump (introduction means)
22 Blower (unloading means)
23 Aeration hole 24 Aeration hole 25 Partition wall 25a Weir portion 26 Partition wall 27 Duct 27a Upper hole 27b Lower hole 28a First water level detection means 28b Second water level detection means 29 Chromaticity sensor (chromaticity detection means)
30 Water level detection means 31 Air valve 33 Water amount detection means B Upper area D Lower area S Washing water switch T Timer

Claims (11)

A water receiving tank provided with a transfer means for transferring the water to be treated, disposed below the toilet bowl, a purification device for purifying and discharging the water to be treated transferred from the water receiving tank, and disposed above the water receiving tank. A water supply tank having a flow-down means for flowing down the treated water introduced from the purification device to at least the water receiving tank at the time of use, and a first circulating water channel is configured, and the treated water is placed in the first circulating water channel A circulating flush toilet that circulates water and purifies it,
A branch pipe which is provided at a predetermined location of the first circulation water channel and which can branch at least a part of the water to be treated; an ozone treatment means which is connected to the branch pipe and which treats the water to be treated; and the ozone treatment And a supply pipe for supplying the treated water ozone-treated by the means to the first circulating water channel, and a second circulating water channel is formed at a predetermined position of the second circulating water channel. Introducing means for introducing treated water into the second circulation channel ;
Within the specified time period specified in advance, the flow-down means forcibly causes the water to be treated to flow from the water tank to the water-receiving tank, and the introduction means removes the water to be treated in the first circulation channel. 2 Circulating flush toilet , which is introduced into the circulation channel . The circulating flush toilet according to claim 1 , wherein the branch pipe capable of branching water to be treated is connected to the water tank. The branch pipe is connected to the lower part of the water tank, the supply pipe is connected to the upper part of the water tank, and the flow pipe connected to the flow means is above the branch pipe and the supply The circulating flush toilet according to claim 2 , wherein the circulating flush toilet is connected to the water tank below the pipe. A chromaticity detection means is provided upstream of the ozone treatment means, and the introduction means can be started and stopped according to the chromaticity of the water to be treated detected by the chromaticity detection means. The circulating flush toilet according to any one of claims 1 to 3 . The purification device includes a solid-liquid separation tank that separates and discharges at least water to be treated in a solid-liquid manner, and separates the water to be treated in the solid-liquid separation tank and concentrates the solid-liquid separation in the solid-liquid separation tank. An unloading means for unloading the material and a storage tank for storing the concentrate are configured, and an introduction pipe capable of introducing the concentrate into the second circulation channel is provided at a predetermined height position of the storage tank. The circulating flush toilet according to any one of claims 1 to 4 . Water amount detecting means for detecting a predetermined amount of water in the storage tank, and an introduction valve capable of opening and closing the introduction pipe provided at a predetermined height position of the storage tank are further provided, and the introduction means is the When the treated water in the first circulation channel is introduced into the second circulation channel, and the water amount detection means detects the predetermined water amount in the storage tank, the introduction valve is opened. The circulating flush toilet according to claim 5 , wherein The circulating flush toilet according to claim 5 or 6 , further comprising bioprocessing means for bioprocessing the concentrate deposited in the storage tank. The full water level detection means for detecting the full water level of the water to be treated is provided in the water receiving tank, and the transport means for transporting the concentrate is activated by the full water level detection means. The circulating flush toilet according to any one of 5 to 7 . The water tank is provided with a first water level detecting means for detecting a high water level of the treated water and a second water level detecting means for detecting a low water level, and the transferring means for transferring the treated water comprises the first water level detecting means. The circulating flush toilet according to any one of claims 1 to 8 , wherein the circulating flush toilet is started by two water level detection means and stopped by the first water level detection means. The circulating flush toilet according to any one of claims 1 to 9 , further comprising an ozone introduction pipe for introducing ozone from the ozone treatment means toward the purification device. The circulating flush toilet according to any one of claims 1 to 10 , wherein the circulating flush toilet is portable.

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