JPH08155497A - Fermentation decomposition apparatus for excrement - Google Patents

Abstract

PURPOSE: To enable the efficient fermentation decomposition of excrement by a relatively small-sized structure which can be placed in each home etc., at low running costs by maintaining a good fermentation environment for microorganisms, especially high temperature fermentation fungi. CONSTITUTION: An air inlet connected with a blower and an air outlet 17 connected with a ventilating fan are installed in a fermentation tank equipped with an excrement inlet 3, an excrement outlet 4 located appropriately apart from the inlet 3, and a suitable cutting device placed inside. Heaters are placed respectively at appropriate places in an air supply passage reaching the air inlet and inside the fermentation tank. The temperature of the excrement in the fermentation tank is on-off controlled around a set temperature of 50 deg.C by the heaters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for fermenting and decomposing human waste by decomposing human waste by fermentation.

[0002]

2. Description of the Related Art Conventionally, most of human waste at home and other places has a large amount of water and is discharged to a treatment plant through sewer, incinerated, or simply discharged to the sea or river. Therefore, the current situation is that problems such as waste of resources and pollution of the environment occur.

[0003]

[Problems to be solved] Recently, in order to improve this problem, attempts have been made to decompose natural urine by utilizing the natural purification action of microorganisms, but it is relatively small so that it can be installed in individual households. There are few that can effectively decompose human waste with such a structure. That is, the conventional apparatus has various drawbacks such as insufficient decomposition of microorganisms due to insufficient fermentation environment and high power consumption by heaters for improving microorganism fermentation environment. are doing. The present invention aims to solve the above drawbacks.

[0004]

In order to solve the above problems, the present invention provides a human waste inlet, a urine outlet which is disassembled at a position appropriately separated from the human urine inlet, and an appropriate turning device is provided inside. In the fermentation tank, an air supply port connected to a blower and an exhaust port connected to an exhaust fan are provided, and a heater is provided at an appropriate position of an air supply path leading to the air supply port and at an appropriate position inside the fermentation tank. Has a temperature of 5 in the fermenter.
ON-OFF with 0 ° C or its vicinity as the set temperature
The present invention provides a human urine fermentation decomposition apparatus characterized by being controlled.

[0005]

[Function] First, in the fermentation tank, a substance with a high carbon content, for example, ground rice husk and the like and aerobic fermentative bacteria are set, and in such a state, urine is introduced into the fermenter through the toilet bowl and the human urine inlet. To do. The human waste thus introduced is agitated by the turning device and is supplied with appropriate air, and is supplied with air by the blower from the air supply port, and is also given heat by the heater, so that microorganisms, particularly aerobic thermophilic bacteria are supplied. Fermented and decomposed by. In addition to being supplied from the heater inside the fermenter, the warm heat is also supplied as warm air from the air supply port by the blower, so that the whole human waste can be efficiently heated. When the fermentation of the organic matter in the human excrement by the aerobic thermophilic bacterium progresses in this way, the heat of fermentation is generated.
When the temperature is 0 ° C or higher, the heater becomes O
It becomes FF, and thereafter the fermentation temperature is maintained at the optimum temperature by the fermentation heat of itself, and the fermentation proceeds. In this way, daily toilet 2
The human waste introduced from the above can be continuously fermented and decomposed to be treated, and the human waste after the decomposition can be taken out from the outlet as a powder or small lumps using, for example, a vacuum cleaner.

[0006]

【Example】

DETAILED DESCRIPTION OF THE INVENTION Reference numeral 1 is a fermentation tank installed in a lower part of a toilet such as a home, and the fermentation tank 1 is appropriately kept warm by a heat insulating agent 20. The fermenter 1 is provided with a feed urine inlet 3 connected to the toilet 2, an outlet 4 for decomposing urine at a position appropriately separated from the feed urine inlet 3, and an appropriate turning device 5 inside. Here, as a matter of course, the human waste inlet 3 may be provided not only for the common use of urine and urine but also for urine. If the turning device 5 has a structure capable of homogenizing human waste in the fermentation tank 1 and supplying air, a structure in which screw-shaped members 6 having different propelling directions are provided on both sides as shown in the illustrated example, etc. Is. However, by rotating rightward and leftward the screws having different traveling directions depending on time, the movement of the compost becomes only half of that of the fermentation tank 1, resulting in the same state as having two tanks. In the illustrated embodiment, the one end wall 7 of the cylindrical fermenter 1 is configured to be removable with bolts 8 and the like, and the machine chamber 9 is attached to the outside of the one end wall 7 with the bolts 8 and the like.
And the bearings 11 and 11 'of the rotary shaft 10 of the screw-shaped member 6 are provided on the one end wall 7 and the other end wall 12, and the screw-shaped member 6 is removed by removing the one-end wall 7 from the motor. The drive mechanism members such as 13 can be easily attached and detached, and such a configuration has a feature that maintenance is easy. Further, the fermenter 1 is provided with an air supply port 15 connected to the blower 14 and an exhaust port 17 connected to an exhaust fan 16, and an appropriate place of an air supply path 18 leading to the air supply port 15 and the inside of the fermenter 1. The heaters 19 and 19 'are provided at appropriate places. The heater 19
′ Is, for example, a planar heating element provided along the wall surface of the fermentation tank 1. Therefore, the present invention is directed to the heaters 19 and 19 '.
The ON-OFF control is performed by setting the night soil temperature in the fermenter 1 as 50 ° C. or a temperature in the vicinity thereof as a set temperature. The temperature sensor for controlling in this manner may be brought into direct contact with human waste, or may be installed in the space inside the fermenter 1. Then, in the fermenter 1, first, a substance with a high carbon content, such as ground rice husks and aerobic fermenting bacteria, is set,
In this state, urine is introduced into the fermenter 1 through the toilet 2 and the urine introducing port 3. Thus, the human waste thus introduced is agitated by the turning device 5 and supplied with appropriate air, supplied with air from the air supply port 15 by the blower 14, and heated by the heaters 19 and 19 '. It is fermented and decomposed by microorganisms, especially aerobic thermophiles. Heat is the heater 19 inside the fermenter 1.
In addition to being supplied from the ′ ′, since it is also supplied as warm air from the air supply port 15 by the blower 14, it is possible to efficiently apply heat to the entire human waste. When the fermentation of organic matter in human waste by the aerobic thermophilic bacterium progresses in this way, the heat of fermentation is generated. Therefore, when the temperature of human urine exceeds 50 ° C. or a temperature in the vicinity thereof, the heaters 19 and 19 ′ are turned off. The fermentation heat is maintained at an optimum temperature by the heat of fermentation and the fermentation proceeds. In addition, water in the human waste is evaporated by the heat of the heaters 19 and 19 'and the heat of fermentation, and is discharged from the exhaust port 17 to the outside air by the exhaust fan 16. Since the evaporation of such water takes heat from the fermentation tank 1, the evaporation energy of the water and the heat radiation energy through the wall surface of the fermentation tank 1 are
By making it possible to balance the energy of the fermentation and the energy of the heaters 19 and 19 ', both organic matter and water in human waste can be treated well. The amount of treated water can be easily increased or decreased by changing the ventilation amount of air and the capacities of the heaters 19 and 19 ', so that it is possible to respond to changes in the number of people who use the toilet bowl 2. In this way, the night soil introduced from the toilet 2 can be continuously fermented and decomposed and processed, and the night soil after the decomposition is taken out from the outlet 4 as a powder or a small block using, for example, a vacuum cleaner. be able to. By the way, the aerobic thermophilic bacterium actively acts in the presence of air at a temperature of 45 ° C. to 65 ° C., and fermentably decomposes organic matter more efficiently than decomposition at other temperatures. Since the fermentation decomposition is aerobic, the fermentation odor is not an unpleasant odor, and the urine is completely decomposed and the urine odor disappears. There is an advantage of doing. In order to efficiently perform the fermentation by the aerobic thermophilic bacterium, the heaters 19 and 19 'may be controlled to be turned on and off to maintain the urine temperature in the temperature range of 45 ° C to 65 ° C. The set temperature of 19 '
If the lower limit temperature of this temperature range is set to 45 ° C. or a temperature slightly higher than this, there is an inconvenience that there is no margin in control and a portion of 45 ° C. or less occurs, and an upper limit temperature of 65 ° C. or a temperature slightly lower than this. Then, there is a disadvantage that the ON time of the heaters 19 and 19 'is increased and the running cost is increased more than necessary.

[0007]

In contrast, the present invention is based on the heaters 19 and 1
Since the set temperature for turning ON / OFF 9 ′ is 50 ° C. or a temperature around 50 ° C. as the temperature of the night soil in the fermentation tank 1, there is a margin in the temperature control of the night soil in the fermentation tank 1, and the temperature of the aerobic thermophilic bacterium is high. The fermentation environment can be maintained well, and the power consumption of the heater is low. INDUSTRIAL APPLICABILITY As described above, the present invention efficiently carries out decomposition of fermented urine by maintaining the fermentation environment of microorganisms, especially high-temperature fermenting bacteria, even in a relatively small configuration such that it can be installed in individual households. The feature is that the running cost is low and the running cost is low.

[0008]

[Brief description of drawings]

FIG. 1 is an external view explanatory diagram.

FIG. 2 is an explanatory cross-sectional view showing the overall configuration.

FIG. 3 is a cross-sectional explanatory view of a state in which the turning device is removed.

FIG. 4 is a cross-sectional view taken along line XX.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fermenter 2 Toilet bowl 3 Urine input port 4 Disassembly and urine extraction port 5 Turning device 6 Screw member 7 One end wall 8 Bolt 9 Machine room 10 Rotating shaft 11, 11 'Bearing 12 Other end wall 13 Motor 14 Blower 15 Air supply port 16 Exhaust fan 17 Exhaust port 18 Air supply path 19, 19 'Heater 20 Insulating agent

Claims (1)

[Claims] 1. A fermenter having a human waste inlet, a urine outlet which is disassembled at a position appropriately separated from the human urine inlet, and an appropriate turning device is provided inside, a supply port connected to a blower, and an exhaust gas. A heater is provided at an appropriate position of the air supply path leading to the air supply port and an appropriate position inside the fermentation tank with an exhaust port connected to the fan, and the heater has a human waste temperature in the fermentation tank of 50 ° C. or the same. ON with the neighborhood temperature as the set temperature
An off-fermentation fermentation decomposition apparatus characterized by being controlled to OFF.