CN113511789A - Novel fecal urine handles device - Google Patents

Novel fecal urine handles device Download PDF

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Publication number
CN113511789A
CN113511789A CN202110423976.XA CN202110423976A CN113511789A CN 113511789 A CN113511789 A CN 113511789A CN 202110423976 A CN202110423976 A CN 202110423976A CN 113511789 A CN113511789 A CN 113511789A
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China
Prior art keywords
urine
excrement
collecting box
compartment
aeration
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Pending
Application number
CN202110423976.XA
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Chinese (zh)
Inventor
姚宏
高军政
孙绍斌
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Beijing Jiaotong University
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Beijing Jiaotong University
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Priority to CN202110423976.XA priority Critical patent/CN113511789A/en
Publication of CN113511789A publication Critical patent/CN113511789A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/04—Fertilisers from human or animal excrements, e.g. manure from human faecal masses
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/06—Apparatus for the manufacture
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/005—Black water originating from toilets
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/784—Diffusers or nozzles for ozonation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/02—Odour removal or prevention of malodour
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention discloses a novel excrement and urine treatment device, which relates to the technical field of excrement and urine treatment and comprises a source separation sanitary appliance, an excrement collection box and an excrement collection box, wherein the urine outlet of the source separation sanitary appliance is connected with the excrement collection box; the excrement collecting box is connected with a drying device through a controller, a filtering device and a urine processing device are arranged in the urine collecting box, the urine collecting box is divided into a first compartment and a second compartment by the filtering device, a urine outlet of the source separation sanitary ware is communicated with the first compartment, the urine processing device is arranged in the second compartment, and an external discharge port is arranged in the second compartment; the controller, the drying device and the urine treatment device are all connected with the circuit control device. The invention ensures that the treated excrement can be used as a fertilizer raw material, ensures the safety of the treated urine and avoids cross infection.

Description

Novel fecal urine handles device
Technical Field
The invention relates to the technical field of excrement and urine treatment, in particular to a novel excrement and urine treatment device.
Background
Most of the existing sanitary ware devices are excrement and urine mixed and intensively discharged to a pipeline and sent to a sewage treatment plant for treatment, part of the existing sanitary ware devices adopt source separation sanitary ware, the excrement and urine is discharged or treated in situ respectively, but the excrement and urine treatment means has non-ideal places, the treatment process is complex, the treatment effect is poor, the device occupies large area, is complex to install, inconvenient to maintain and frequent in maintenance, the water quality of the treated urine does not reach the standard, and if the existing sanitary ware devices are used for recycling, the water splashes onto the bodies of people in a toilet, so that cross infection and the like can be caused. The treated excrement has high water content and still needs to be dehydrated to be used as fertilizer and the like.
Therefore, it is desirable to provide a new fecal urine management device to solve the above problems in the prior art.
Disclosure of Invention
The invention aims to provide a novel excrement and urine treatment device, which aims to solve the problems in the prior art, so that the treated excrement can be used as a fertilizer raw material, the safety of the treated urine is ensured, and the cross infection is avoided.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a novel excrement and urine treatment device which comprises a source separation sanitary appliance, an excrement collection box and an excrement collection box, wherein a urine outlet of the source separation sanitary appliance is connected with the excrement collection box; the excrement collecting box is connected with a drying device through a controller, a filtering device and a urine processing device are arranged in the urine collecting box, the urine collecting box is divided into a first compartment and a second compartment by the filtering device, a urine outlet of the source separation sanitary ware is communicated with the first compartment, the urine processing device is arranged in the second compartment, and an external discharge port is arranged in the second compartment; the controller, the drying device and the urine processing device are all connected with the circuit control device.
Preferably, the drying device is positioned below the manure collecting box, and the bottom of the manure collecting box is communicated with the top of the drying device through the controller; the controller adopts an electromagnetic valve, and the drying device adopts a low-temperature vacuum drying device.
Preferably, the top of the side wall of the low-temperature vacuum drying device is communicated with the first compartment of the urine collection box through a pipeline, and one end of the pipeline connected with the low-temperature vacuum drying device is higher than the other end of the pipeline; and the bottom of the low-temperature vacuum drying device is provided with an outlet.
Preferably, the filtration device is a membrane filtration device.
Preferably, the membrane filtering device adopts a plate-type ceramic membrane, the aperture of the plate-type ceramic membrane is 1um, and the aeration rate is 5 mL/min.
Preferably, the urine treatment device comprises an aeration device and a phosphorus recovery device, and the phosphorus recovery device is positioned above the aeration device.
Preferably, the aeration device is an ozone aeration device, the ozone aeration device comprises a blower, an aeration pipeline, an ozone aeration head and an ozone generator, one end of the blower is communicated with the ozone aeration head through the aeration pipeline, and the other end of the blower is communicated with the ozone generator.
Preferably, the phosphorus recovery device comprises a biochar composite layer, and the biochar composite layer is prepared from goethite and biomass porous carbon; the biochar composite layer is arranged in the urine collection box through a fixed support and is positioned above the aeration device.
Preferably, a pump is further arranged in the second chamber of the urine collection tank, and the pump is connected with the circuit control device.
Preferably, the manure collecting box is positioned below the source separation sanitary ware, and a manure outlet of the source separation sanitary ware is communicated with the top of the manure collecting box through a manure discharging pipe; a urine outlet of the source separation sanitary ware is communicated with the first compartment of the urine collection box through a urine discharge pipe, and one end of the urine discharge pipe, which is connected with the urine outlet, is higher than the other end of the urine discharge pipe; the outward discharge port is used for discharging the treated urine and recycling the treated urine.
Compared with the prior art, the invention has the following technical effects:
in the invention, after excrement enters a middle filter chamber of a source separation sanitary appliance and is treated in each stage, solid-liquid two-phase separation is completed, dried excrement is discharged, and liquid generated by filter pressing of the middle filter chamber and vacuum drying of a drying device enters a urine collection box; the membrane filtering device is arranged in the urine collecting box, a membrane filtering pump is adopted for pumping water, the urine collecting box is divided into two compartments by the membrane filtering device, and liquid filtered by the plate-type ceramic membrane enters the next compartment; the ozone aeration device is located in the second compartment, the biochar composite layer is located above the ozone aeration device, when the ozone aeration device conducts aeration, liquid is disturbed, the biochar composite layer can be fully contacted with the liquid to absorb phosphorus and antibiotics in the liquid, and the treated urine can be recycled for the second time.
The invention has simple pipeline, easy installation, convenient maintenance, high excrement dehydration rate, good urine treatment effect and standard water quality; and moreover, a vacuum drying technology and a membrane filtration, ozone oxidation and biochar composite material adsorption coupling technology are introduced, so that water in excrement can be effectively removed, the size of the excrement is reduced, colloid and suspended matters in the urine can be filtered, the chromaticity and turbidity of the urine are reduced, COD (chemical oxygen demand), ammonia nitrogen and phosphorus in the urine are reduced, and medicinal components such as antibiotics in the urine are reduced, so that the treated excrement can be used as a fertilizer raw material, the safety of the treated urine is ensured, and the cross infection is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of the novel fecal urine treatment device of the present invention;
wherein: 1: source separation sanitary ware, 2: excrement discharge pipe, 3: excrement collection box, 4: urinary catheter, 5: urine collection box, 6: membrane filtration device, 7: circuit control device, 8: biochar composite layer, 9: outer discharge port, 10: ozone generator, 11: ozone aeration head, 12: blower, 13: ozone aeration apparatus, 14: pump, 15: piping, 16: discharge port, 17: controller, 18: provided is a low-temperature vacuum drying device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a novel excrement and urine treatment device, which aims to solve the problems in the prior art, so that the treated excrement can be used as a fertilizer raw material, the safety of the treated urine is ensured, and the cross infection is avoided.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the present embodiment provides a novel fecal urine treatment device, which mainly includes a source separation sanitary fixture 1, a circuit control device 7, a fecal discharge pipe 2, a urinary discharge pipe 4, a fecal collection box 3, a urinary collection box 5, a low-temperature vacuum drying device 18, a membrane filtration device 6, an ozone aeration device 13, a biochar composite material layer 8, and a connecting pipeline.
Specifically, excrement collection box 3 links to each other through excrement discharge pipe 2 with source separation sanitary wares 1, and excrement and urine flows into excrement collection box through the action of gravity, and wherein, source separation sanitary wares 1 can select from prior art according to the work needs, mainly is provided with well filter chamber in it, separates urine and excrement and urine through the filter-pressing. The excrement collecting box 3 is connected with the low-temperature vacuum drying device 18 through a controller 17, the excrement enters the low-temperature vacuum drying device 18 through the controller 17 to be dried, the treated excrement is discharged outside through a discharge port 16, liquid condensed in vacuum flows into the urine collecting box 5 through a pipeline 15, the urine collecting box 5 is connected with the source separation sanitary device 1 through a urine discharge pipe 4, and urine flows into the urine collecting box 5 through the action of gravity. The low-temperature vacuum drying device 18 mainly comprises a cylindrical vacuum drying tank, and can be vacuumized by negative pressure or other vacuum drying structures selected from the prior art according to working requirements.
In the embodiment, liquid in the excrement and the excrement are subjected to solid-liquid separation by adopting filter pressing, air blowing and flowing through and vacuum drying, the dried excrement is discharged and treated, and liquid generated by filter pressing and vacuum drying and condensation is communicated with the front part of the first compartment of the urine collection box 5 through a pipeline 15 and enters the urine collection box 5 for treatment.
Further, the liquid converges in the urine collection box 5, a membrane filtering device 6 is arranged in the urine collection box, the membrane filtering device 6 adopts a plate-type ceramic membrane, and after the pump 14 is started, the liquid in the urine collection box passes through the plate-type ceramic membrane for filtering treatment. The biochar composite layer 8 is fixed in the urine collection tank 5 by a fixing device, and is immersed in liquid, wherein the fixing device can adopt a fixing bracket which is welded at the bottom or the side wall of the urine collection tank 5. The ozone aeration device 13 is positioned at the lower end of the biochar composite layer 8 and is formed by communicating one end of a blower 12 with the ozone aeration head 11 and communicating the other end with the ozone generation device 10 through a pipeline. The urine is treated by the plate-type ceramic membrane, the biochar composite layer 8 and the ozone aeration device 13 and then is discharged through the outer discharge port 9.
In this embodiment, the circuit control device 7 is connected with a controller 17, a low-temperature vacuum drying device 18, a pump 14, an ozone generating device 10 and a blower 12; wherein, the circuit control device 7 can adopt a conventional PLC controller.
In this embodiment, when the source separation sanitary ware 1 is used, the membrane filtration device 6 starts to work, the pump 14 is started, the plate-type ceramic membrane starts to filter the liquid in the first compartment, the plate-type ceramic membrane filters the alternating suspended matters and COD ammonia nitrogen and the like that can effectively get rid of in water, the liquid comes to the second compartment after the membrane filtration, the ozone aeration device 13 in the second compartment starts to work, water body disturbance during ozone aeration sterilization, disinfection, decoloration and deodorization, and the composite biochar material layer 8 starts to adsorb antibiotics and phosphorus in water. The treated liquid can be directly discharged or recycled for flushing a toilet, and can also enter a water storage device for irrigation and the like, so long as the water quality after urine treatment is ensured to reach the standard.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. A novel excrement and urine treatment device comprises a source separation sanitary appliance, an excrement collecting box and a urine collecting box, wherein a urine outlet of the source separation sanitary appliance is connected with the urine collecting box, and an excrement outlet of the source separation sanitary appliance is connected with the excrement collecting box; the method is characterized in that: the excrement collecting box is connected with a drying device through a controller, a filtering device and a urine processing device are arranged in the urine collecting box, the urine collecting box is divided into a first compartment and a second compartment by the filtering device, a urine outlet of the source separation sanitary ware is communicated with the first compartment, the urine processing device is arranged in the second compartment, and an external discharge port is arranged in the second compartment; the controller, the drying device and the urine processing device are all connected with the circuit control device.
2. The novel fecal urine management device of claim 1 characterized in that: the drying device is positioned below the manure collecting box, and the bottom of the manure collecting box is communicated with the top of the drying device through the controller; the controller adopts an electromagnetic valve, and the drying device adopts a low-temperature vacuum drying device.
3. The novel fecal urine management device of claim 2 characterized in that: the top of the side wall of the low-temperature vacuum drying device is communicated with the first compartment of the urine collection box through a pipeline, and one end of the pipeline connected with the low-temperature vacuum drying device is higher than the other end of the pipeline; and the bottom of the low-temperature vacuum drying device is provided with an outlet.
4. The novel fecal urine management device of claim 1 characterized in that: the filtering device is a membrane filtering device.
5. The novel fecal urine management device of claim 4 characterized in that: the membrane filtering device adopts a plate-type ceramic membrane, the aperture of the plate-type ceramic membrane is 1um, and the aeration rate is 5 mL/min.
6. A novel fecal urine management device according to claim 1 or 5 characterized in that: the urine treatment device comprises an aeration device and a phosphorus recovery device, and the phosphorus recovery device is positioned above the aeration device.
7. The novel fecal urine management device of claim 6 wherein: the aeration device adopts an ozone aeration device, the ozone aeration device comprises an air blower, an aeration pipeline, an ozone aeration head and an ozone generator, one end of the air blower is communicated with the ozone aeration head through the aeration pipeline, and the other end of the air blower is communicated with the ozone generator.
8. The novel fecal urine management device of claim 6 wherein: the phosphorus recovery device comprises a biochar composite material layer, wherein the biochar composite material layer is prepared from goethite and biomass porous carbon; the biochar composite layer is arranged in the urine collection box through a fixed support and is positioned above the aeration device.
9. The novel fecal urine management device of claim 1 characterized in that: and a pump is also arranged in the second chamber of the urine collection box and is connected with the circuit control device.
10. The novel fecal urine management device of claim 1 characterized in that: the excrement collecting box is positioned below the source separation sanitary appliance, and an excrement outlet of the source separation sanitary appliance is communicated with the top of the excrement collecting box through an excrement discharging pipe; a urine outlet of the source separation sanitary ware is communicated with the first compartment of the urine collection box through a urine discharge pipe, and one end of the urine discharge pipe, which is connected with the urine outlet, is higher than the other end of the urine discharge pipe; the outward discharge port is used for discharging the treated urine and recycling the treated urine.
CN202110423976.XA 2021-04-20 2021-04-20 Novel fecal urine handles device Pending CN113511789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110423976.XA CN113511789A (en) 2021-04-20 2021-04-20 Novel fecal urine handles device

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Application Number Priority Date Filing Date Title
CN202110423976.XA CN113511789A (en) 2021-04-20 2021-04-20 Novel fecal urine handles device

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Publication Number Publication Date
CN113511789A true CN113511789A (en) 2021-10-19

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CN202110423976.XA Pending CN113511789A (en) 2021-04-20 2021-04-20 Novel fecal urine handles device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114538968A (en) * 2022-01-11 2022-05-27 济南槐荫尘峰环保技术开发中心 Method for resource utilization of excrement
EP4282830A1 (en) * 2022-05-23 2023-11-29 IPM International Project Management S.à r.l. Separation and processing plant for a waste product in the maintenance of livestock

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114538968A (en) * 2022-01-11 2022-05-27 济南槐荫尘峰环保技术开发中心 Method for resource utilization of excrement
EP4282830A1 (en) * 2022-05-23 2023-11-29 IPM International Project Management S.à r.l. Separation and processing plant for a waste product in the maintenance of livestock
WO2023227620A1 (en) * 2022-05-23 2023-11-30 Ipm International Project Management S.À R.L. Separation and preparation system for a waste product in livestock husbandry

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