Biodegradation treatment device and treatment method for shipboard excrement domestic sewage

Abstract

The invention discloses a biodegradation treatment device and method for shipboard excrement domestic sewage, and relates to the technical field of organic waste biological treatment. The device comprises a device upper shell, a hatch cover and a device lower shell. The device upper shell is connected with the device lower shell; the hatch cover is hinged to the device upper shell. A biodegradation area and a functional area which are adjacent to each other are arranged in the device lower shell. The device is used for replacing a traditional toilet, flushing is not needed, and after excrement and urine are discharged into the device, the excrement and urine are efficiently decomposed through microorganisms, so that the purposes of reduction, harmlessness and resourceful treatment are achieved. The invention is suitable for special environments such as ships, large-scale activities, military activities, islands and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of biological treatment of organic waste, and more specifically to a biological degradation treatment device and method for fecal domestic sewage on ships. Background Art

[0002] In recent years, with China's accession to organizations such as the WTO and RCEP, the rapid economic growth has driven the development of the water transportation industry. The types, quantities, and tonnages of ships have all increased significantly. According to statistics, there are currently about 220,000 inland river transport ships registered in China, about 30,000 seagoing ships entering inland rivers every day, with a cumulative total of 250,000 operating ships in inland rivers every day, and about 2.4 million crew members. During the navigation, berthing, and operation of these ships, a large amount of domestic sewage and ship garbage will be generated, which is large in quantity, strong in fluidity, and wide in scope. If not properly disposed of, it will have a serious impact on the river ecological environment, biological resources, and fishery production.

[0003] Domestic sewage on ships can be divided into black water and grey water. Grey water includes dishwashing water, bathing water, etc. and can be directly discharged. Black water mainly includes feces, urine, and flushing water and is not allowed to be discharged. At present, the black water of ships is mainly treated by collecting it on shore for treatment, which is achieved by equipping flush toilets and sewage collection tanks. This method has several disadvantages. Firstly, it increases the amount of sewage. Secondly, it requires a sewage collection tank (cabinet) of a certain volume, which not only increases the cabin volume but also increases the weight of the hull itself. Thirdly, the transportation and treatment costs are high. Fourthly, there is no online supervision system, lacking effective supervision.

[0004] The prior art CN206427238U discloses a marine vacuum flush toilet, which includes a toilet body and a flush tank. The lower part of the toilet body is a water seal sewage pipe, and the toilet body is connected to a vacuum pump through an isolation valve. An adjustable water flow flush pipe is provided between the flush tank and the toilet body. The inlet end of the flush pipe is connected to the flush tank, and the other outlet end is connected to the toilet body, and an adjustment switch is provided on the flush pipe. When flushing the toilet, the isolation valve is opened, and relying on the pressure difference with the atmospheric pressure, the things in the toilet are taken away. Although this toilet is relatively convenient to operate, it has the disadvantage of requiring water flushing after use, generally consuming about 3 - 6 liters of water each time, and is suitable for fixed onshore living places with water supply and sewage pipe networks. For spaces with limited space and mobile places such as ships, if flush toilets are equipped, it will increase the amount of sewage, require a sewage collection tank (cabinet) of a certain volume, which not only increases the cabin volume but also increases the weight of the hull itself; the transportation and treatment costs are high; there is no online supervision system, lacking effective supervision. Summary of the Invention

[0005] In view of this, the present invention provides a biological degradation treatment device and method for ship fecal domestic sewage, which is used to replace traditional toilets and does not require flushing. After feces and urine are discharged into the device, they are efficiently decomposed by microorganisms to achieve the purpose of reduction, harmlessness, and resource utilization. The present invention is suitable for use in special environments such as ships, large-scale events, military activities, and islands.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A biological degradation treatment device for ship fecal domestic sewage, comprising: a biological degradation area;

[0008] Wherein, the biological degradation area includes a biological degradation bin;

[0009] A heating and insulation module is arranged at the bottom of the biological degradation bin; a stirring shaft is arranged above the heating and insulation module, and both ends of the stirring shaft are connected to the biological degradation bin; an opening and closing mechanism is arranged above the stirring shaft; a baffle is arranged on one side of the opening and closing mechanism, and the opening and closing mechanism is connected to the side wall of the biological degradation bin; a temperature and humidity detection module is arranged on the other side of the baffle; a limit sensor is arranged on one side of the temperature and humidity detection module.

[0010] Preferably, the above device further includes: a functional area; the functional area is arranged on one side of the biological degradation area;

[0011] The functional area is provided with an air duct, an exhaust fan, an exhaust port, an electric control box, a stirring motor, and a stirring transmission module;

[0012] The stirring motor and the stirring transmission module are arranged at the lower part of the functional area; the stirring motor, the stirring transmission module, and the stirring shaft are connected in sequence;

[0013] The air duct, the exhaust fan, and the exhaust port are arranged at the upper part of the functional area; the exhaust port, the exhaust fan, and the air duct are connected in sequence; the air duct communicates with the biological degradation bin;

[0014] The electric control box is arranged in the upper middle part of the functional area; the electric control box is electrically connected to the stirring motor, the opening and closing mechanism, the heating and insulation module, the temperature and humidity detection module, and the limit sensor;

[0015] The electric control box is connected to an external control system.

[0016] Preferably, the above device further includes: a device upper shell, a hatch cover, and a device lower shell;

[0017] The device upper shell, the hatch cover, and the device lower shell;

[0018] The device upper shell is connected to the device lower shell; the hatch cover is hinged to the device upper shell;

[0019] The biodegradation zone and the functional zone are arranged inside the lower shell of the device;

[0020] The temperature and humidity detection module, the baffle plate and the limit sensor are all connected to the upper shell of the device.

[0021] Preferably, the above device further comprises: a power plug;

[0022] The power plug is arranged outside the lower shell of the device and is connected to the electric control box.

[0023] Preferably, the above device further comprises: a temperature sensor;

[0024] The temperature sensor is arranged at the bottom of the side wall of the biodegradation bin and is electrically connected to the electric control box.

[0025] Preferably, the above device further comprises: a status indicator light and a dehumidification button;

[0026] The status indicator light and the dehumidification button are arranged outside the upper shell of the device and are electrically connected to the electric control box.

[0027] Preferably, the lower shell of the device is provided with a manual stirring port matching the stirring shaft.

[0028] Preferably, the temperature and humidity detection module is a retractable temperature and humidity detection device.

[0029] Preferably, two stirring shafts are provided, and the two stirring shafts work in linkage, and any one of the stirring shafts is connected to the stirring transmission module.

[0030] Another object of the present invention is to provide a method for biodegradation treatment of fecal domestic sewage on board a ship, using the above-mentioned device, and the working principle is as follows:

[0031] (1) Fecal domestic sewage is discharged into the biodegradation tank and fully contacts with fillers, bacteria and water;

[0032] (2) Through stirring and auxiliary heating, the bacteria can be rapidly multiplied and fecal sewage can be effectively degraded;

[0033] (3) The residues of fecal domestic sewage degradation by bacteria are small molecular organic matter, nitrogen, phosphorus, potassium and other nutrients, which together with the filler, bacteria and remaining water maintain a biodegradation treatment environment and continuously treat fecal domestic sewage;

[0034] (4) The bacteria degrade fecal domestic sewage to produce water vapor, carbon dioxide, and a very small amount of other waste gases, which are discharged through exhaust fans in compliance with standards;

[0035] (5) After the device has been running for some time, the solid products need to be regularly removed, and an appropriate amount of bacteria is added to maintain the degradation efficiency of the device.

[0036] Specifically, it includes the following steps:

[0037] a) Domestic sewage containing feces is discharged into the biodegradation bin and comes into full contact with the filler, bacteria, and water.

[0038] b) Through the operation control system, according to the signals fed back by the temperature and humidity detection module and the temperature sensor, the stirring shaft is automatically controlled to intermittently stir the materials in the biodegradation bin, and the heating and insulation module is automatically controlled to intermittently heat the biodegradation bin to create the best temperature and humidity environment for the bacteria, realizing the rapid proliferation of the bacteria.

[0039] c) The residues of the domestic sewage containing feces degraded by the bacteria, together with the filler, bacteria, and remaining water, maintain the biodegradation treatment environment and continuously treat the domestic sewage containing feces.

[0040] d) The water vapor, carbon dioxide, and other waste gases generated by the bacteria degrading the domestic sewage containing feces are extracted from the biodegradation bin by the exhaust fan through the air duct and discharged from the device through the exhaust port.

[0041] e) The limit sensor is used to realize the full-bin alarm function of the biodegradation bin; the opening and closing mechanism is used to block the opening of the biodegradation bin, which is opened when the device is in use and automatically resets and closes after use.

[0042] f) After the device is powered on, it enters the automatic working state. When it is overloaded, press the dehumidification button to enter the dehumidification working mode. When the humidity enters the normal humidity range, the device automatically cancels the dehumidification working mode and resumes the normal working state.

[0043] g) When the device has been running for some time, the solid products are regularly removed from the biodegradation bin, and an appropriate amount of bacteria is added to maintain the degradation efficiency of the device.

[0044] During the above use process, the device works in three modes, specifically:

[0045] Normal working mode

[0046] Trigger condition: The conditions for starting other working modes are not met;

[0047] Closing condition: The conditions for starting other working modes are met;

[0048] After triggering: Stir forward for 20s - stop for 15s - stir backward for 20s - stop for 1145s (loop until exiting the normal mode);

[0049] Always exhaust weakly;

[0050] The heater operates to control the material temperature at 30 - 45°C. (The maximum temperature of the heater during operation is less than <50°C>);

[0051] Dehumidification mode

[0052] Trigger condition: The moisture content of the material is greater than 60%;

[0053] Shutdown condition: The moisture content of the material is less than 50%;

[0054] After triggering: Forward stirring for 30s - stop for 30s - reverse stirring for 30s - stop for 30s (loop until the dehumidification mode is exited);

[0055] Always have strong exhaust ventilation;

[0056] The heater operates to control the material temperature at no more than 50°C. (The maximum temperature of the heater during operation is less than <50°C>);

[0057] Sleep mode

[0058] Trigger condition: The moisture content of the material is less than 30%;

[0059] Shutdown condition: The moisture content of the material is greater than 40%;

[0060] After triggering: Forward stirring for 10s - stop for 10s - reverse stirring for 10s - stop for 35970s (loop until the sleep mode is exited);

[0061] Always have weak exhaust ventilation;

[0062] The heater operates to control the material temperature at 20 - 35°C. (The maximum temperature of the heater during operation is less than <50°C>).

[0063] During the above working process, overloading means that: through the temperature and humidity sensor, after each use, the humidity of the packing material in the biodegradation bin will increase by a certain value. When the humidity value exceeds the threshold, it is determined as overloaded operation.

[0064] From the above technical solutions, compared with the prior art, the present invention has the following beneficial effects:

[0065] 1. Optimize the design of the automatic control system, adopt a retractable temperature and humidity detection device, effectively prevent the failure of temperature and humidity detection caused by material adhesion, improve the control accuracy, and adjust the operation parameters of the device according to the temperature and humidity values, so as to provide the best activity environment for microorganisms and improve the fecal and urine treatment efficiency;

[0066] 2. Through the established online monitoring system, manufacturers can provide efficient front-line services, customers can obtain a good user experience, and it helps the competent department to achieve effective supervision in the form of "one map";

[0067] 3. An opening and closing mechanism is added. Before a person sits on it, the opening and closing mechanism is closed, and the materials in the treatment chamber cannot be seen visually. Only when a person sits on it during use will the opening and closing mechanism open, thus improving the appearance. The opening and closing mechanism completes its action in a lever manner. When the hatch cover is pressed (when a user sits on the hatch cover), the hatch cover will have a downward travel. There is a spring push rod under the hatch cover, which presses down the pressure plate here through the push rod. The pressure plate rotates accordingly and drives the baffle of the opening and closing mechanism to move, realizing the opening action of the opening and closing mechanism. When the user leaves the hatch cover, the push rod rebounds, the pressure plate here loses pressure, and the opening and closing mechanism returns to its original position, realizing the closing action of the opening and closing mechanism.

[0068] 4. The stirring shaft uses a double-shaft stirring method, which stirs more evenly and thoroughly without dead corners. Double-shaft stirring can increase the volume of the processor. It can reduce the height of the stirring blades, which can not only prevent the stirring blades from loosening but also reduce the height of the stirring blades from the opening of the device, improving the user experience and safety.

[0069] 5. The heating and insulation module uses a silicone heating sheet, which reduces costs and improves reliability. The heating and insulation module is linked with the temperature sensor and stirring control through the temperature and humidity detection module, improving the heat transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative efforts.

[0071] Figure 1 It is the front view of the external structure of the present invention;

[0072] Figure 2 It is the side view of the external structure of the present invention;

[0073] Figure 3 It is the front view of the internal structure of the present invention;

[0074] Figure 4 It is the side view of the internal structure of the present invention;

[0075] Figure 5 It is the schematic diagram of the closed structure of the opening and closing mechanism of the present invention;

[0076] Figure 6 It is the schematic diagram of the opened structure of the opening and closing mechanism of the present invention;

[0077] Figure 7 It is the schematic diagram of the device function of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0078] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0079] Embodiment 1

[0080] This embodiment provides a biological degradation treatment device for on-board fecal domestic sewage, including: an upper device shell 1, a hatch cover 4, and a lower device shell 5;

[0081] The upper device shell 1 is connected to the lower device shell 5; the hatch cover 4 is hinged to the upper device shell 1;

[0082] A biodegradation area and a functional area are arranged adjacent to each other inside the lower device shell 5;

[0083] The biodegradation area includes a biodegradation bin 10;

[0084] A heating and insulation module 11 is arranged at the bottom of the biodegradation bin 10; a stirring shaft 12 is arranged above the heating and insulation module 11, and both ends of the stirring shaft 12 are connected to the biodegradation bin 10; an opening and closing mechanism 9 is arranged above the stirring shaft 12; a baffle 21 is arranged on one side of the opening and closing mechanism 9, one end of the opening and closing mechanism 9 is connected to the baffle 21, and the other end is connected to the side wall of the biodegradation bin 10; a temperature and humidity detection module 13 is arranged on the other side of the baffle 21; a limit sensor 14 is arranged on one side of the temperature and humidity detection module 13; the temperature and humidity detection module 13, the baffle 21, and the limit sensor 14 are all connected to the upper device shell 1;

[0085] The functional area is provided with an air duct 20, an exhaust fan 19, an exhaust port 7, an electric control box 18, a stirring motor 17, and a stirring transmission module 16;

[0086] The stirring motor 17 and the stirring transmission module 16 are arranged at the lower part of the functional area; the stirring motor 17, the stirring transmission module 16, and the stirring shaft 12 are connected in sequence;

[0087] The air duct 20, the exhaust fan 19, and the exhaust port 7 are arranged at the upper part of the functional area; the exhaust port 7, the exhaust fan 19, and the air duct 20 are connected in sequence; among them, the exhaust port 7 penetrates to the outside of the lower device shell 5; the air duct 20 communicates with the biodegradation bin 10;

[0088] The electric control box 18 is arranged in the upper middle part of the functional area; the electric control box 18 is electrically connected to the stirring motor 17, the opening and closing mechanism 9, the heating and insulation module 11, the temperature and humidity detection module 13, and the limit sensor 14.

[0089] In this embodiment, the above device further includes: a power plug 8;

[0090] The power plug 8 is arranged outside the device lower shell 5 and is connected to the electric control box 18.

[0091] In this embodiment, the above device further includes: a temperature sensor 15;

[0092] The temperature sensor 15 is arranged at the bottom of the side wall of the biodegradation bin 10 and is electrically connected to the electric control box 18.

[0093] In this embodiment, the above device further includes: a status indicator light 2 and a dehumidification button 3;

[0094] The status indicator light 2 and the dehumidification button 3 are arranged outside the device upper shell 1 and are electrically connected to the electric control box 18.

[0095] In this embodiment, a manual stirring port 6 matching the stirring shaft 12 is opened on the device lower shell 5.

[0096] The structures in the device of the present invention are connected through the following steps:

[0097] 1. Pass the stirring shaft 12 through the preset hole position of the biodegradation bin 10;

[0098] 3. Fix the stirring transmission module 16 at the preset position on the biodegradation bin 10, and then fix the stirring motor 17 at the preset position on the stirring transmission module 16;

[0099] 4. Fix the air duct 20 at the preset position on the biodegradation bin 10, and then fix the exhaust fan 19 at the preset position on the air duct 20;

[0100] 5. Fix the temperature sensor 15 at the preset empty position on the biodegradation bin 10;

[0101] 6. Lay the heating and heat preservation module 11 at the bottom of the biodegradation bin 10;

[0102] 7. Install the components assembled in steps 1 - 6 into the fixed position of the device lower shell 5, pay attention to checking whether the manual stirring port 6 on the device lower shell 5 is aligned with the stirring shaft 12, and pass the exhaust port 7 through the preset hole position of the device lower shell 5;

[0103] 8. Install the electric control box 18 into the fixed position of the device lower shell 5 and lead out the power plug 8 from the device;

[0104] 9. Install the opening and closing mechanism 9 into the fixed position of the device lower shell 5;

[0105] 10. Install the status indicator light 2, the dehumidification button 3, the temperature and humidity detection module 13, the baffle 21, and the limit sensor 14 at the fixed positions on the device upper shell 1;

[0106] 11. Install the device upper shell 1 assembled in step 10 at the fixed position of the device lower shell 5;

[0107] 12. Open the cover plate preset at the rear of the lower housing 5 of the device, connect all wires to the control box 18, pass the power cord through the preset hole of the lower housing 5 of the device, and connect the power plug 8;

[0108] 13. Finally, close the cover plate and install the hatch 4 at the preset position on the upper housing 1 of the device.

[0109] Embodiment 2

[0110] This embodiment provides a method for biologically degrading and treating domestic sewage containing feces on a ship, including the following steps:

[0111] a) Domestic sewage containing feces is discharged into the biodegradation bin 10 and comes into full contact with the filler, bacteria, and water;

[0112] b) Through the operation control system, according to the signals fed back by the temperature and humidity detection module 13 and the temperature sensor 15, the stirring shaft 12 is automatically controlled to intermittently stir the materials in the biodegradation bin 10, and the heating and heat preservation module 11 is automatically controlled to intermittently heat the biodegradation bin 10 to create the best temperature and humidity environment for the bacteria, realize the rapid proliferation of the bacteria, and effectively degrade the domestic sewage containing feces;

[0113] c) The residues of the bacteria degrading the domestic sewage containing feces are small molecule organic matters, nutrients such as nitrogen, phosphorus, and potassium, which maintain the biodegradation treatment environment with the filler, bacteria, and remaining water, and continuously treat the domestic sewage containing feces;

[0114] d) The bacteria degrading the domestic sewage containing feces generate water vapor, carbon dioxide, and a very small amount of other waste gases, which are extracted from the biodegradation bin 10 by the exhaust fan 19 through the air duct 20 and discharged from the device through the exhaust port 7;

[0115] e) The limit sensor 14 is used to realize the full bin alarm function of the biodegradation bin 10; the opening and closing mechanism 9 is used to block the opening of the biodegradation bin 10, open it when the device is in use by personnel, and automatically reset and close it after use;

[0116] f) The device realizes the above automatic operations through the operation control system;

[0117] g) After the device is powered on, it enters the automatic working state. When overloaded, the dehumidification button 3 can be pressed to enter the dehumidification working mode. When the humidity enters the normal humidity range, the device will automatically cancel the dehumidification working mode and resume the normal working state;

[0118] h) After the device has been running for a period of time, the solid products need to be regularly cleared from the biodegradation bin 10, and an appropriate amount of bacteria is added at the same time to maintain the degradation efficiency of the device.

[0119] Embodiment 3

[0120] This embodiment provides a method for biodegradation treatment of fecal domestic sewage on board a ship, comprising the following steps:

[0121] a) fecal sewage generated by the crew is discharged into the biodegradation chamber 10, and is fully contacted with fillers, bacteria, and water. The fillers are composed of sawdust and wood chips in a mass ratio of 1:1, and the bacteria are composed of Zygosaccharomyces beijerinii LBSW-01, Bacillus, yeast, and Aspergillus;

[0122] b) By operating the control system, according to the signals fed back by the temperature and humidity detection module 13 and the temperature sensor 15, the stirring shaft 12 is automatically controlled to intermittently stir the materials in the biodegradation bin 10, and the heating and heat preservation module 11 is automatically controlled to intermittently heat the biodegradation bin 10, so as to create the best temperature and humidity environment for the strains, realize the rapid proliferation of the strains, and effectively degrade fecal domestic sewage. The best temperature environment is 30-45°C, and the best humidity environment is 40-60%;

[0123] c) The residues of fecal domestic sewage degradation by bacteria are small molecular organic matter, nitrogen, phosphorus, potassium and other nutrients, which maintain a biodegradation treatment environment with fillers, bacteria and residual water to continuously treat fecal domestic sewage;

[0124] d) The bacteria degrade fecal domestic sewage to produce water vapor, carbon dioxide, and a very small amount of other waste gases, which are drawn out from the biodegradation chamber 10 through the air duct 20 by the exhaust fan 19 and discharged from the device through the exhaust port 7;

[0125] e) The limit sensor 14 is used to realize the full-bin alarm function of the biodegradable bin 10; the opening and closing mechanism 9 is used to cover the opening of the biodegradable bin 10, which is opened when a person uses the device and automatically resets and closes after use;

[0126] f) The device realizes the above automatic operation through the operation control system;

[0127] g) The device enters the automatic working state after being powered on. When it is overloaded, the dehumidification button 3 can be pressed to enter the dehumidification working mode. When the humidity enters the normal humidity range, the device will automatically release the dehumidification working mode and resume normal working state;

[0128] h) After the device has been running for a period of time, the solid output needs to be regularly removed from the biodegradation chamber 10, and appropriate amount of bacteria needs to be added to maintain the degradation efficiency of the device. The regular removal of solid output and addition of appropriate amount of bacteria are generally performed once every 1-2 months.

[0129] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biological degradation treatment device for fecal domestic sewage on a ship, characterized in that, Comprising: A biodegradation area; Wherein, the biodegradation area includes a biodegradation bin; A heating and heat preservation module is arranged at the bottom of the biodegradation bin; A stirring shaft is arranged above the heating and heat preservation module, and both ends of the stirring shaft are connected to the biodegradation bin; An opening and closing mechanism is arranged above the stirring shaft; A baffle is arranged on one side of the opening and closing mechanism, and the opening and closing mechanism is connected to the side wall of the biodegradation bin; A temperature and humidity detection module is arranged on the other side of the baffle; A limit sensor is arranged on one side of the temperature and humidity detection module.

2. The on-board fecal domestic sewage biodegradation treatment device according to claim 1, characterized in that, Also comprising: A functional area; The functional area is arranged on one side of the biodegradation area; The functional area is provided with an air duct, an exhaust fan, an exhaust port, an electric control box, a stirring motor, and a stirring transmission module; The stirring motor and the stirring transmission module are arranged at the lower part of the functional area; The stirring motor, the stirring transmission module, and the stirring shaft are connected in sequence; The air duct, the exhaust fan, and the exhaust port are arranged at the upper part of the functional area; The exhaust port, the exhaust fan, and the air duct are connected in sequence; The air duct communicates with the biodegradation bin; The electric control box is arranged in the upper middle part of the functional area; The electric control box is electrically connected to the stirring motor, the opening and closing mechanism, the heating and heat preservation module, the temperature and humidity detection module, and the limit sensor; The electric control box is connected to an external control system.

3. The on-board fecal domestic sewage biodegradation treatment device according to claim 2, characterized in that, Also comprising: An upper device shell, a hatch cover, and a lower device shell; An upper device shell, a hatch cover, and a lower device shell; The upper device shell is connected to the lower device shell; The hatch cover is hinged to the upper device shell; The biodegradation area and the functional area are arranged inside the lower device shell; The temperature and humidity detection module, the baffle, and the limit sensor are all connected to the upper device shell.

4. The on-board fecal domestic sewage biodegradation treatment device according to claim 3, wherein, Also comprising: A power plug; The power plug is arranged outside the lower device shell and is connected to the electric control box.

5. The on-board fecal domestic sewage biodegradation treatment device according to claim 3, characterized in that, Also comprising: A temperature sensor; The temperature sensor is arranged at the bottom of the side wall of the biodegradation bin and is electrically connected to the electric control box.

6. The on-board fecal domestic sewage biodegradation treatment device according to claim 3, characterized in that, Also comprising: A status indicator light and a dehumidification button; The status indicator light and the dehumidification button are arranged outside the upper device shell and are electrically connected to the electric control box.

7. A device for biodegradable treatment of fecal domestic sewage on a ship according to claim 3, characterized in that, A manual stirring port matching the stirring shaft is opened on the lower device shell.

8. The biodegradation treatment device for on-board fecal domestic sewage according to claim 1, characterized in that, The temperature and humidity detection module is a retractable temperature and humidity detection device.

9. A method for biodegradable treatment of fecal domestic sewage on a ship, characterized in that, Including the following steps: a) Fecal domestic sewage is discharged into the biodegradation bin and comes into full contact with fillers, strains, and water; b) Through the operation of the control system, according to the signals fed back by the temperature and humidity detection module and the temperature sensor, automatically control the stirring shaft to intermittently stir the materials in the biodegradation bin, and automatically control the heating and heat preservation module to intermittently heat the biodegradation bin to create the best temperature and humidity environment for the strains and achieve rapid proliferation of the strains; c) The residues of the fecal domestic sewage degraded by the strains, together with the fillers, strains, and remaining moisture, maintain the biodegradation treatment environment and continuously treat the fecal domestic sewage; d) The water vapor, carbon dioxide, and other waste gases generated by the strains degrading the fecal domestic sewage are extracted from the biodegradation bin by the exhaust fan through the air duct and discharged from the device through the exhaust port. e) The limit sensor is used to implement the full - bin alarm function of the biodegradation bin; the opening - closing mechanism is used to block the opening of the biodegradation bin, which is opened when the device is in use and automatically resets and closes after use. f) After the device is powered on, it enters the automatic working state. When overloaded, press the dehumidification button to enter the dehumidification working mode. When the humidity enters the normal humidity range, the device automatically cancels the dehumidification working mode and resumes the normal working state. g) After the device operates for a period of time, regularly remove the solid products from the biodegradation bin and add an appropriate amount of bacteria at the same time to maintain the degradation efficiency of the device.

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