JP5642368B2 - Circulating biodegradable toilet - Google Patents

Description

  The present invention relates to a circulation-type biodegradation toilet that performs biodegradation treatment while circulating sewage containing feces and urine after washing the toilet bowl with wash water, and reuses it again as wash water.

  2. Description of the Related Art Conventionally, a circulating manure treatment technology has been proposed in which toilet wastewater is biodegraded and reused as cleaning water. For example, Japanese Patent Application Laid-Open No. 2000-179023 discloses a flush toilet, a separation storage tank for separating water and shaped excrement and garbage, an aeration tank containing a microorganism culture material, and ozone inside. And the ozone tank to be introduced into the tank, the purified water storage tank, and the natural fall in the order of the flush toilet, the separation storage tank, the aeration tank, the ozone tank, and the purified water storage tank in this order. A circulating flush toilet that circulates water by overflow and upward movement by a pump has been proposed (Patent Document 1).

JP 2000-179023 A

  However, in the invention described in Patent Document 1, in addition to a pump for circulating water, a blower for introducing aeration air must be separately installed in each aeration tank (paragraph [0010] ). For this reason, there is a problem that the initial cost becomes high and the amount of power consumption becomes large and the running cost becomes enormous if it is always operated.

  Moreover, since the invention described in Patent Document 1 is configured to store excrement separated from water, it must be removed by a vacuum vehicle or the like every predetermined period (paragraph [0015]). For this reason, when there are a large number of users, there is a problem that the pump must be frequently drawn out, resulting in a huge maintenance cost. In addition, when it is installed in a place with poor transportation such as a remote place, there is a problem that it is necessary to use a vacuum car to get there.

  The present invention has been made in order to solve such problems. In addition to supplying a single pump to supply air necessary for the circulation and biodegradation of sewage, the effect of manure is achieved. It aims at providing the circulation type biodegradation processing toilet which can be crushed automatically and can suppress power consumption.

  The circulation-type biodegradation toilet according to the present invention performs biodegradation and decolorization treatment while sequentially transferring sewage containing feces and urine after washing the toilet bowl with washing water to a plurality of adjacent treatment tanks. A recirculating biodegradable toilet that is reused as cleaning water, where the suction port of the pump is disposed in the treatment tank after the completion of the predetermined treatment, and another treatment tank before the completion of the predetermined treatment An injection nozzle that is connected to the pump and is capable of injecting microbubbles into the sewage and injecting the sewage, and returning the sewage after the predetermined treatment to the other treatment tank before the treatment is circulated. Purify while letting.

  Further, in the present invention, the plurality of treatment tanks include an input treatment tank that performs biodegradation treatment by introducing sewage after washing the toilet bowl, and filters the sewage transferred from the input treatment tank using a filter medium. A plurality of filtration tanks for biodegradation while decolorizing tanks for decolorizing the sewage treated in the filtration tanks using a decoloring material, and a reservoir for storing the sewage decolorized in the decoloring tanks And the suction port of the pump is disposed in one of the filtration tank, the decoloring tank, and the water storage tank, and the spray nozzle is disposed in the suction port. You may make it arrange | position in the at least 1 processing tank among the said input processing tank, the said filtration processing tank, the said decoloring tank, and the said water storage tank.

  Further, in the present invention, a decoloring material is disposed in the decoloring tank substantially parallel to the bottom surface, the suction port of the pump is disposed in the water storage tank, and the spray nozzle is disposed in the decoloring tank. You may make it arrange | position so that sewage can be injected toward a wall surface.

  Further, in the present invention, the injection nozzle includes a main pipe provided with a water passage for allowing the sewage to pass through, and an intake pipe that is communicated so as to be substantially orthogonal to the water passage of the main pipe and sucks air. The water passage may be tapered in a taper shape with the upstream side of the communication portion facing the communication portion.

  Furthermore, in this invention, the downstream side from the communicating part of the said water flow path may be expanded in the taper shape toward the injection port.

  ADVANTAGE OF THE INVENTION According to this invention, while sharing the one pump and supplying the air required for the circulation of sewage and a biodegradation process, manure can be crushed effectively and power consumption can be suppressed.

It is the whole perspective view which omitted a part showing one embodiment of the circulation type biodegradation processing toilet concerning the present invention. It is a top view which shows the circulation type biodegradation processing toilet of this embodiment. In this embodiment, it is a top view which shows the example of arrangement | positioning of a pumping pump and its piping. In this embodiment, it is a figure which shows the injection nozzle for (a) excrement crushing, and (b) the injection nozzle for air supply. In this embodiment, it is a schematic diagram which shows the direction of the injection nozzle in a decoloring tank. 4 is a graph showing experimental results of Example 1. It is a figure which shows the comparison result of Example 2. FIG.

  Hereinafter, one embodiment of the circulation type biodegradation processing toilet 1 concerning the present invention is described using a drawing. FIG. 1 is an overall perspective view of the circulatory biodegradable toilet 1 according to the present embodiment in which a toilet or the like is omitted, and FIG. 2 is a plan view thereof. In FIG. 1 and FIG. 2, a pumping pump 7 and its piping which will be described later are omitted.

  The circulatory biodegradation toilet 1 of this embodiment is for processing excrement excreted in the toilet 2 and toilet paper as shown in FIG. 2, and excrement after the toilet 2 is washed with washing water. The sewage contained is configured to be reused as cleaning water again by performing biodegradation treatment and decolorization treatment while sequentially transferring the wastewater to a plurality of adjacent treatment tanks.

  Specifically, as shown in FIG. 1 and FIG. 2, an input treatment tank 3 that mainly inputs sewage after toilet cleaning and performs biodegradation processing, and a filtration that filters sewage transferred from the input treatment tank 3 A treatment tank 4, a decolorization tank 5 that decolorizes the sewage treated in the filtration treatment tank 4, a water storage tank 6 that stores the sewage decolorized in the decolorization tank 5, and a pump that pumps sewage from each treatment tank It has a pump 7 and an injection nozzle 8 that injects microbubbles into sewage and injects them. Hereinafter, each configuration will be described in detail.

  The input processing tank 3 is a tank for biodegrading the sewage input from the toilet 2. In this embodiment, the input treatment tank 3 is configured as a substantially rectangular parallelepiped tank, and as shown in FIG. 1, a transfer opening 31 that communicates with the filtration treatment tank 4 is provided in a substantially lower half of the side wall surface. Is provided. The transfer opening 31 is provided with a plurality of slits spaced at a predetermined interval so as to filter large dust and the like.

  Further, in the present embodiment, as shown in FIG. 2, in the charging treatment tank 3, a contact material 32 on which microorganisms are propagated so as to surround the front side of the transfer opening 31 and the vicinity of the lower part of the toilet bowl 2. Is arranged. The contact material 32 is formed of a synthetic fiber such as polyvinylidene chloride in a rope shape, and the contact surface is increased by projecting innumerable fibers from the rope portion in a loop shape. For this reason, feces and urine easily adhere to the contact material 32 and stay for a long time to promote biodegradation treatment by microorganisms.

  Moreover, the microorganisms used in this embodiment are deodorized by decomposing manure into carbon dioxide gas and water, thereby reducing the BOD (Biochemical oxygen demand) value. Specifically, as microorganisms that remain activated even when submerged in fresh water or seawater, facultative anaerobic Bacillus subtilis, mixed bacteria of yeast and fermenting bacteria, or Bacillus that is a dominant culture Subtilis subtilis sp. Was used. In addition, Bacillus subtilis which uses liquid as a medium is used as a floating type in water, and Bacillus subtilis impregnated with zeolite is in a nap state, and is placed in a place that tends to become a dead space such as the four corners of the tank. .

  The filtration treatment tank 4 is a tank that performs biodegradation treatment while filtering the wastewater in the sewage transferred from the input treatment tank 3 with the filter material 41. In this embodiment, as shown in FIGS. 1 and 2, the filtration treatment tank 4 is communicated with the input treatment tank 3 via the transfer opening 31, and the periphery of the input treatment tank 3 has a U shape. A flow path is formed so as to surround it. Then, a plurality of filter media 41 are provided along the flow path at appropriate intervals, thereby being partitioned into a plurality of filtration treatment tanks 4. Further, a contact material 32 is disposed on the upstream surface of the filter material 41, and the biodegradation process is also advanced here.

  In the present embodiment, as the filter medium 41, a plurality of saw-toothed partition plates 42 having jagged serrated portions 42a formed at the upper end portions and punching metal plates 43 in which a large number of punch holes are perforated are erected. Yes. The serrated partition plate 42 overflows sewage while preventing relatively large dust at the serrated portion 42a. Further, the punching metal plate 43 filters sewage while preventing relatively small dust by the punch holes.

  Moreover, in this embodiment, as shown in FIG. 1, the filtration processing tank 4 has an upper end opening plate 44 whose height is lowered and only the upper end portion is opened, and a lower end opening plate whose only lower end portion is opened. 45 is provided, and a flow is sequentially formed downstream by overflow or inflow from below. Moreover, as shown in FIG. 3, the strainer 9a connected to the suction pipe 71 of the pumping pump 7a is installed in the downstream of the filtration processing tank 4. As shown in FIG. The sewage pumped up from the strainer 9a is jetted to the input processing tank 3 and the other upstream filtration processing tank 4 through the injection nozzle 8a, as will be described later.

  In this embodiment, the input treatment tank 3 and the filtration treatment tank 4 are described separately. However, the present invention is not limited to this configuration, and the input treatment tank 3 and the filtration treatment tank 4 are combined into one. You may grasp | ascertain as a processing tank.

  The decoloring tank 5 is a tank that decolorizes the sewage transferred from the filtration processing tank 4 with a decoloring material 51. In this embodiment, as shown in FIG. 1, the decolorization tank 5 is communicated with the filtration processing tank 4 by a lower end opening plate 45 having only the lower end opened. And in the height position above the said opening, the punching metal board 43 of the same size as the planar view shape of the decoloring tank 5 is being fixed substantially parallel to the bottom face, ie, substantially horizontal direction. Thereby, when the sewage from the filtration processing tank 4 flows in from below, it is filtered again.

  In the present embodiment, as the decoloring material 51, granular activated carbon of about 2 to 4 mm is deposited on the punching metal plate 43. Activated carbon is a porous carbon material obtained by firing and carbonizing charcoal or the like, and decolorizes and deodorizes sewage by selectively adsorbing organic substances in the fine pores. In addition, the decoloring material 51 is not limited to activated carbon, You may select and change suitably.

  The water storage tank 6 is a tank that stores the sewage purified after the decolorization process in the decolorization tank 5 as cleaning water. In this embodiment, the water storage tank 6 is connected with the decoloring tank 5 by the upper end opening plate 44 by which only the upper end part was opened, as shown in FIG.1 and FIG.2. Moreover, in this embodiment, as shown in FIG. 2, the end portion of the water storage tank 6 is adjacent to the start end portion of the filtration treatment tank 4. For this reason, the filtration processing tank 4, the decoloring tank 5, and the water storage tank 6 are adjacently disposed so as to go around the charging processing tank 3, and the entire circulating biodegradation processing toilet 1 is configured in a compact manner.

  Further, in the present embodiment, as shown in FIGS. 2 and 3, the water storage tank 6 includes a strainer 9b connected to the suction pipe 71 of the pump 7b and a strainer connected to the suction pipe 71 of the pump 7c. 9c is installed. And the sewage pumped up from these strainers 9b and 9c is jetted to the decoloring tank 5 and the water storage tank 6 through the jet nozzles 8b and 8c, as will be described later. Moreover, the sewage pumped up from the water storage tank 6 is supplied to the low tank 21 of the toilet bowl 2 and used again as washing water.

  The pump 7 pumps the sewage from any of the treatment tanks described above and supplies it to the spray nozzle 8. In the present embodiment, the pump 7 is provided above the treatment tank, and as shown in FIG. 3, the uppermost pump 7a, the middle pump 7b, and the lower pump 7c. And have. Each pump 7a, 7b, 7c has a suction pipe 71 for sucking sewage and a discharge pipe 72 for discharging sewage, and is configured to discharge the sewage pumped up from the suction pipe 71 from the discharge pipe 72. Has been. In FIG. 3, the positions of the pumps 7a, 7b, and 7c are shifted to the right to make it easier to see the piping.

  Specifically, in FIG. 3, the uppermost pump 7 a has a suction pipe 71 connected to a strainer 9 a installed downstream of the filtration tank 4. On the other hand, the discharge pipe 72 is branched to the input processing tank 3 and the other filtration processing tank 4 upstream of the strainer 9a, and three spray nozzles 8a are arranged in each processing tank.

  Further, in FIG. 3, the middle pump 7 b has the suction port 71 connected to a strainer 9 b installed in the water storage tank 6. On the other hand, the discharge pipe 72 is branched into six locations above the decoloring tank 5 upstream of the strainer 9b, and six injection nozzles 8b are connected.

  Further, in FIG. 3, the lowermost pump 7c has a suction port 71 connected to a strainer 9c installed in the water storage tank 6. On the other hand, the discharge pipe 72 is branched into six locations above the water storage tank 6 where the strainer 9c is installed, and six injection nozzles 8c are connected. In addition, a water supply pipe 73 for supplying sewage to the low tank 21 is connected to the pump 7c.

  As described above, in the present embodiment, since the sewage in the filtration treatment tank 4 is before the decolorization treatment, it is returned to the input treatment tank 3 and the filtration treatment tank 4 in which sewage in a state dirty than the sewage is stored. Circulate. On the other hand, since the sewage stored in the water storage tank 6 is cleanly purified, it is returned to the previous decolorization tank 5 or sprayed into the water storage tank 6 and circulated again. Thereby, circulation of sewage is ensured without reducing processing efficiency.

  However, how to circulate is not limited to the above-described one, and the suction port of the pump 7 is disposed in the treatment tank after the predetermined treatment and before the predetermined treatment is finished. The injection nozzle 8 should just be arrange | positioned in the other processing tank. That is, according to the present embodiment, the suction ports of the pumps 7a, 7b, and 7c are arranged in any one of the filtration tank 4, the decoloring tank 5, and the water tank 6, and the injection nozzle 8 is connected to the pumping pump. A processing tank upstream of the processing tank in which the pumps 7 a, 7 b, and 7 c are arranged, and in at least one of the input processing tank 3, the filtration processing tank 4, the decoloring tank 5, and the water storage tank 6. Deploy. With this configuration, sewage is efficiently purified while being circulated.

  In this embodiment, the strainers 9a, 9b, and 9c are connected to the suction ports of the pumps 7a, 7b, and 7c, respectively, but the strainers 9a, 9b, and 9c may not be used. Further, as the pump 7, a magnet pump with no risk of water leakage or liquid leakage and low power consumption is used. However, the pump is not limited to this, and any pump that can be continuously operated is a spiral. A pump, a rotary pump, etc. may be sufficient. Moreover, in this embodiment, although the three pumping pumps 7 are provided, it is not limited to this, You may increase / decrease suitably in consideration of a processing capability, cost, etc.

  Moreover, in this embodiment, although the water supply pipe 73 for supplying sewage to the low tank 21 is connected to the pumping pump 7c, it is not limited to this configuration, and the pumping pump 7 with the lowest pumping load is connected to the pumping pump 7c. What is necessary is just to connect suitably.

  The injection nozzle 8 injects microbubbles into the sewage pumped up by the pumping pump 7 for injection. In the present embodiment, as shown in FIG. 4, the injection nozzle 8 is communicated with a main pipe 81 provided with a water passage 81 a for allowing sewage to pass therethrough, and substantially perpendicular to the water passage 81 a of the main pipe 81. And an intake pipe 82 for sucking air. And the water flow path 81a is diameter-reduced in the taper shape toward the said communication part the upstream of the communication part of the main pipe 81 and the intake pipe 82. As shown in FIG.

  With the above configuration, when the injection nozzle 8 supplies sewage from the water inlet 83, air is sucked from the intake pipe 82 by the venturi effect, and the air is taken into the sewage. Then, the pressure increases as the sewage moves toward the injection port 84, and the air in the sewage is refined by this pressure change so that the microbubbles can be injected.

  Moreover, as the injection nozzle 8 of this embodiment, as shown to Fig.4 (a), the nozzle 8a for manure crushing in which the water flow path 81a downstream from the said communication part was formed in the substantially linear form, FIG. As shown in b), the water flow path 81a on the downstream side of the communication portion uses air supply nozzles 8b and 8c having a diameter increased toward the injection port 84 in a tapered shape.

  In the present embodiment, the charging treatment tank 3 and the filtration treatment tank 4 are provided with a manure crushing nozzle 8a, and the decolorization tank 5 and the water storage tank 6 are provided with air supply nozzles 8b and 8c. The manure crushing nozzle 8a provided in the input processing tank 3 is directed to the manure accumulated in the input processing tank 3, and crushes manure and toilet paper by a high-pressure water flow. Further, the excrement crushing nozzle 8 a provided in the filtration tank 4 is appropriately provided between the serrated partition plate 42 and the punching metal plate 43.

  On the other hand, as shown in FIG. 5, the air supply nozzle 8b provided in the decoloring tank 5 is directed to the inner wall surface such as the bottom surface or the side surface of the decoloring tank 5, and the sewage is once sprayed and diffused on the inner wall surface. ing. This is because when high-pressure sewage is directly sprayed onto the activated carbon, black dust contained in the activated carbon is discharged and the sewage is blackened. Further, in the decolorization tank 5, the air supply nozzle 8b is directed to a place where the microbubbles are difficult to be supplied, such as the four corners, so that no dead space is generated. In addition, the dotted line in FIG. 5 has illustrated the rough flow of the injected sewage.

  In the present embodiment, the manure crushing nozzle 8a and the air supply nozzles 8b and 8c have an inner diameter of the water inlet 83 of 10 to 50 mm, an inner diameter of the tip of the upstream portion of 2 to 12 mm, and an inner diameter of the intake pipe 82 of 2. Common in that it is set to 10 mm. However, the inner diameter of the injection port 84 is set to 2 to 12 mm for the excrement crushing nozzle 8a and 3 to 15 mm for the air supply nozzles 8b and 8c.

  That is, the ratio of the inner diameter of the injection port 84 to the inner diameter of the water inlet 83 is set within a range of 1: 0.20 to 1: 0.24 in the excrement crushing nozzle 8a, and in the air supply nozzles 8b and 8c. , Preferably set to 1: 0.30. If the nozzle diameter is too small, clogging is likely to occur, and microbubbles may become nano-level or equivalently small, which may damage microorganisms. On the other hand, if the nozzle diameter is too large, the amount of air taken in will be reduced, reducing the microbubble effect.

  Next, the operation of the circulating biodegradable toilet 1 according to the present invention will be described with reference to the drawings.

  First, when the use of the circulating biodegradable toilet 1 of this embodiment is started, a certain amount of treated water is put into each tank, and the pumps 7a, 7b, 7c are continuously operated.

  Subsequently, when manure or toilet paper excreted in the toilet 2 is introduced into the input treatment tank 3 together with the washing water, the manure crushing nozzle 8a blows high-pressure sewage onto the manure and toilet paper to crush it. Thereby, the microorganisms are easily biodegraded, and the urine and the like are not solidified and deposited in the input treatment tank 3 and do not need to be periodically pumped. Moreover, since the excrement crushing nozzle 8a mixes and injects microbubbles into sewage, it increases the amount of dissolved oxygen in the sewage and activates microorganisms. Furthermore, since the sewage crushing nozzle 8a injects the sewage pumped from the downstream side of the filtration tank 4, the entire sewage can be circulated to prevent the sewage from stagnation.

  That is, the excrement crushing nozzle 8a of this embodiment exerts a crushing action such as a wastewater circulation action, an air supply action, and a excrement excretion by injecting high-pressure sewage containing microbubbles. Moreover, since the manure crushing nozzle 8a takes in the air necessary for the biodegradation process into the sewage by itself due to the venturi effect, a compressor or an air pump for supplying air to the sewage as in the prior art is unnecessary. .

  In addition, the sewage introduced into the input treatment tank 3 adheres to and stays on the contact material 32 disposed below the toilet bowl 2 and at the transfer opening 31. For this reason, sufficient time for microorganisms to biodegrade manure is ensured, sewage is deodorized, and the BOD value is reduced. In addition, since the microbubbles take in fine dust in the sewage into the bubbles, the reduction of the BOD value is further promoted.

  The sewage that has undergone biodegradation treatment in the input treatment tank 3 flows into the filtration treatment tank 4 after large dust is removed by the transfer opening 31. And if the water level becomes higher than the sawtooth-shaped partition plate 42 which is the first filter medium 41, the sawtooth portion 42a removes large dust and overflows the sewage downstream. Subsequently, the punching metal plate 43 permeates the sewage while filtering small dust and sequentially transfers it to the downstream. As a result, in the filtration tank 4, the sewage is passed through the plurality of sawtooth partition plates 42 and the punching metal plate 43 to remove various kinds of dust. Further, the contact material 32 provided on the upstream surfaces of the serrated partition plate 42 and the punching metal plate 43 further advances the biodegradation process of the sewage.

  Moreover, in this embodiment, the pump 7a injects the sewage pumped up from the downstream side of the filtration tank 4 from the manure crushing nozzle 8a provided on the upstream side of the input tank 3 and the filtration tank 4. For this reason, the sewage in a relatively dirty state is circulated in the input treatment tank 3 and the filtration treatment tank 4 arranged in the first half of the treatment, and promotes circulation without reducing the treatment efficiency. Also in the filtration tank 4, the sewage sprayed from the excrement crushing nozzle 8a crushes the solids that have passed through the transfer opening 31 and the filter media 41 and increases the amount of dissolved oxygen in the sewage. Increase efficiency.

  Subsequently, the sewage from which dust is removed in the filtration tank 4 flows into the decoloring tank 5 from below through the opening of the lower end opening plate 45. At this time, the dust in the sewage is again filtered by the punching metal plate 43 disposed in the decoloring tank 5 and decolorized and deodorized by the activated carbon. In addition, since the air supply nozzle 8b in the decolorization tank 5 is directed to the inner wall surface and the four corners, the sprayed sewage does not discharge dust from the activated carbon or cause a dead space with a small amount of dissolved oxygen. . Furthermore, the injected sewage cleans the activated carbon and suppresses the deterioration of the decolorization / deodorization ability of the activated carbon.

  The air supply nozzle 8b has a larger pressure change compared to the excrement crushing nozzle 8a because the downstream side of the communicating portion of the water passage 81a is tapered toward the injection port. Many microbubbles can be mixed in sewage.

  Subsequently, the sewage decolorized in the decoloring tank 5 overflows the upper end opening plate 44 and flows into the water storage tank 6. Thereby, the sewage purified in each processing tank is stored as washing water for the toilet bowl 2. In the present embodiment, the sewage pumped from the water storage tank 6 by the pumps 7b and 7c is again sprayed from the air supply nozzles 8b and 8c to the decoloring tank 5 and the water storage tank 6 to promote circulation and the sewage is retained. And prevents it from being rubbed.

  Further, the sewage pumped from the water storage tank 6 by the pumping pump 7 is separately supplied to the low tank 21 of the toilet bowl 2 through the water supply pipe 73 and used again as washing water. This washing water is decolorized and deodorized, and is purified both visually and substantially, so that the user does not feel uncomfortable.

According to the present embodiment as described above, the following effects can be obtained.
1. It is possible to share sewage and supply air for biodegradation treatment by sharing one pump, and to effectively crush manure and to reduce power consumption.
2. The biodegradation process and the decolorization process can be performed while circulating the sewage, and can be reused as washing water.
3. It does not require excretion of manure and can reduce the labor and cost required for maintenance.
4). Since power consumption is low, it can be operated continuously only with power generated by sunlight, wind power or hydropower, and the installation location is not limited.
5. The contact material 32 can be washed and reused any number of times, and the burden on the environment can be reduced.

  Hereinafter, the specific Example of the circulation type biodegradation processing toilet 1 which concerns on this invention is described. The technical scope of the present invention is not limited to the features shown by the following examples.

  In Example 1, the degree to which the amount of dissolved oxygen in water was improved was measured by the air supply nozzles 8b and 8c of the present embodiment. As the air supply nozzles 8b and 8c, those having an inner diameter of the water inlet 83 of 15 mm, an inner diameter of the tip of the upstream portion of 4 mm, an inner diameter of the injection port 84 of 4.3 mm, and an inner diameter of the intake pipe 82 of 3 mm were used. Moreover, as the pumping pump 7, a magnet pump (PMDS-641B2P: manufactured by Three Phase Electric Co., Ltd.) having a rated output of 35 W and a standard performance of 35 L / min was used. Furthermore, the air suction amount was 0.8 to 1.4 L / min, the room temperature was 15.7 ° C., the water used was 37 liters, and the saturated dissolved oxygen amount was approximately 9.76.

  Under the above conditions, the amount of dissolved oxygen in the water over time when one air supply nozzle 8b, 8c was used and when two nozzles were used was measured using an oxygen scavenger. The result is shown in FIG. Here, the microorganism used in the present embodiment is the aforementioned Bacillus subtilis, and the dissolved oxygen amount required by this microorganism is 5 mg. In this regard, when the number of air supply nozzles 8b and 8c is one, it was confirmed that the dissolved oxygen amount reached 5 mg after about 8 minutes and 30 seconds and gradually increased thereafter. In addition, when the number of air supply nozzles 8b and 8c was two, it was confirmed that the dissolved oxygen amount reached 5 mg in just over 6 minutes and then gradually increased.

  According to the above Example 1, it is shown that the air supply nozzles 8b and 8c of the present embodiment can increase the amount of dissolved oxygen in sewage quickly and surely and activate microorganisms. It can be decomposed.

  In the present Example 2, various performances were compared between the circulating flush biotoilet using conventional cedar chips and the circulating biodegradable toilet 1 of the present embodiment. The result is shown in FIG.

  As shown in FIG. 7, in a conventional biotoilet, a pump for crushing manure (450 W), a pump for pumping water (400 W), and a pump for water supply (350 W) are used, so that the total of pumps alone is 1200 W. Power. In addition, since two to three heaters (60 W) and 60 L / min air pumps (about 210 W) are used, the total power consumption is about 1470 W.

  On the other hand, in this embodiment, the 60W pumping pump 7 can be operated by only three units, and only a heater (60W) is used separately. For this reason, the total power consumption is only 240 W, and the power consumption is reduced by about 84% compared to the conventional one. In addition, the total weight was reduced from 2400 kg to 1500 kg, and the weight was reduced to about 60% of the conventional weight.

  According to the above Example 2, since the circulation type biodegradable toilet 1 of this embodiment has very little power consumption, it was confirmed that running cost can be suppressed even if it operates continuously. Moreover, since it was lightened, it was confirmed that transportation work and installation work were easy, and it was shown that utility value is high as a portable toilet.

  In addition, the circulation type biodegradation processing toilet 1 which concerns on this invention is not limited to embodiment mentioned above, It can change suitably.

  For example, the number and arrangement of the pumps 7a, 7b, 7c and the injection nozzles 8a, 8b, 8c are not limited to the configuration of the present embodiment described above, and may be changed as appropriate. For example, a strainer 9b may be separately provided below the punching metal plate 43 in the decoloring tank 5, and the sewage may be pumped from the strainer 9b by the pump 7b, and the sewage may be sprayed to the decoloring tank 5 again. .

  Moreover, in this embodiment mentioned above, the filtration processing tank 4, the decoloring tank 5, and the water storage tank 6 are arrange | positioned adjacently planarly around the input processing tank 3, but the whole system is made compact, However, It is limited to this structure. However, it may be changed as appropriate, such as being arranged in a straight line according to the installation location, or arranged along an appropriate inclination.

DESCRIPTION OF SYMBOLS 1 Circulation type biodegradation processing toilet 2 Toilet bowl 3 Input processing tank 4 Filtration processing tank 5 Decoloring tank 6 Water storage tank 7, 7a, 7b, 7c Pumping pump 8 Injection nozzle 8a Nozzle for excrement urine 8b, 8c Nozzle for air supply 9a, 9b , 9c Strainer 21 Low tank 31 Transfer opening 32 Contact material 41 Filter material 42 Sawtooth-shaped partition plate 42a Sawtooth portion 43 Punching metal plate 44 Upper end opening plate 45 Lower end opening plate 51 Decoloring material 71 Suction pipe 72 Discharge pipe 73 Water supply pipe 81 Main pipe 81a Water passage 82 Intake pipe 83 Inlet 84 Inlet

Claims (4)

Circulating biodegradable toilet that performs biodegradation and decolorization treatment while sequentially transferring sewage containing feces and urine after washing the toilet bowl with wash water to a plurality of adjacent treatment tanks and reusing it as wash water Because
As the plurality of treatment tanks,
An input treatment tank for biodegradation treatment by introducing sewage after toilet cleaning,
A plurality of filtration treatment tanks for biodegradation treatment while filtering the sewage transferred from the input treatment tank using a filter medium;
A decolorization tank for decolorizing the sewage treated in the filtration tank using a decoloring material;
A water storage tank for storing the sewage decolorized in the decolorization tank,
A pumping pump suction port is arranged in the filtration treatment tank, and the injection tank is connected to the pumping pump in the charging treatment tank and in the filtration treatment tank, and is capable of injecting microbubbles into the sewage and jetting it. Place the nozzle,
In addition to disposing a suction port of a pumping pump in the water storage tank, a spray nozzle connected to the pumping pump in the decoloring tank and capable of spraying by mixing microbubbles into the sewage is disposed,
A suction port of a pump is disposed in the water tank, and the pump and the low tank are connected.
A circulating biodegradable toilet that purifies while circulating the sewage after the prescribed treatment. In the decoloring tank, a decoloring material is disposed substantially parallel to the bottom surface, the suction port of the pump is disposed in the water storage tank, and the spray nozzle is directed toward the inner wall surface of the decoloring tank. The circulation type biodegradable toilet according to claim 1, which is arranged so as to be jettable. The injection nozzle includes a main pipe provided with a water passage for allowing the sewage to flow therethrough, and an intake pipe that is communicated so as to be substantially orthogonal to the water passage of the main pipe and sucks air. The circulatory biodegradable toilet according to claim 1 or 2, wherein the diameter of the portion is reduced in a tapered shape with the upstream side of the portion facing the communicating portion. The circulation type biodegradation toilet according to claim 3, wherein the downstream side of the communicating portion of the water passage is enlarged in a tapered shape toward the injection port.

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