CN108609814B - Toilet excrement and urine recycling treatment equipment - Google Patents

Toilet excrement and urine recycling treatment equipment Download PDF

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CN108609814B
CN108609814B CN201810717579.1A CN201810717579A CN108609814B CN 108609814 B CN108609814 B CN 108609814B CN 201810717579 A CN201810717579 A CN 201810717579A CN 108609814 B CN108609814 B CN 108609814B
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pipe
excrement
pump
tank
sludge
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CN108609814A (en
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夏海宗
夏铸金
李开明
邹家盛
顾斌
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/005Black water originating from toilets
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1236Particular type of activated sludge installations
    • C02F3/1268Membrane bioreactor systems
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2853Anaerobic digestion processes using anaerobic membrane bioreactors
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Abstract

The invention discloses a toilet excrement and urine recycling treatment device, which comprises an excrement decomposition system, a microorganism treatment system and an advanced oxidation system, and not only effectively solves the problems of waste of water resources and environmental pollution caused by directly discharging excrement and urine sewage into a sewer pipeline, but also effectively solves the problems of waste water reuse and toilet odor of the existing toilet.

Description

Toilet excrement and urine recycling treatment equipment
Technical Field
The invention relates to toilet excrement and urine, in particular to toilet excrement and urine recycling treatment equipment.
Background
The excrement and urine of a bathroom is one of main pollution sources of urban domestic sewage, and the excrement and urine of the bathroom, especially a movable bathroom, is high-concentration organic sewage, and has Chemical Oxygen Demand (COD), ammonia nitrogen, biochemical Oxygen Demand (BOD), suspended matter content (SS) and other indexes far higher than those of the urban sewage. Bath water, washing water and the like are doped in urban domestic water, so that the organic matter content of the excrement and urine is diluted, the chemical oxygen demand COD of the inlet water is less than 400mg/L, the ammonia nitrogen is less than 30mg/L, the biochemical oxygen demand BOD is more than 200mg/L, and the suspended matter content SS is less than 200mg/L; the toilet sewage is different from the pure domestic sewage in the following way, and the pollution index is high; the pollution index of the pure fecal sewage is generally 17000-30000mg/L of chemical oxygen demand CODcr, and ammonia nitrogen is 7000-11000mg/L or even higher; the fluctuation of the water quality of the water inlet is large, the ratio of the urine to the feces of the toilet staff is irregular and can be circulated, and the water inlet quantity is variable; the number of people in the toilet varies with the change of seasons, weather and holidays, and is circulated without any rule.
In view of the above characteristics of toilet sewage, it is impossible to have a good treatment effect by using the conventional sewage treatment process. Special sewage must be treated by special treatment process to reach the effluent standard.
At present, the main technology for treating the excrement and urine in the urban movable toilet and the tourist attraction toilet is as follows:
1. after the feces and urine are separated, the solid enters a microbial bed for decomposition, and the liquid enters an urban sewage pipeline;
2. the manure directly enters a septic tank and is discharged into a nearby river channel and a municipal pipe network;
3. after the feces and urine are separated, the solid enters a microbial bed for decomposition, and the liquid is subjected to primary disinfection and sterilization and then toilet flushing;
4. packing type collecting toilet bowl;
5. foam-plugged toilets, and the like.
The current stage of urban domestic sewage and new rural reforming sewage treatment mainly adopts microbial technology to decompose and ferment, for example, the Japanese purification tank technology is suitable for low-concentration organic sewage and is selected for areas with higher water quality requirements and more developed economy, and no report of using the purification tank to treat dispersed sewage is available for medium-high-concentration organic sewage and middle-western areas of China. With the national emphasis on sewage discharge, a single treatment technology cannot meet the national sewage discharge requirement.
Disclosure of Invention
The invention provides a toilet excrement and urine recycling treatment device which combines the technology of septic tank decomposition, microorganism treatment and advanced oxidation. The method overcomes the defects of the prior toilet excrement treatment technology, carries out solid-liquid separation on high-concentration excrement from the source, degrades organic matters such as Chemical Oxygen Demand (COD), ammonia nitrogen, biochemical Oxygen Demand (BOD), suspended matter content (SS), and the like, further purifies the excrement sewage through advanced treatment of photocatalytic oxidation, and disinfects, disinfects and decolors the sewage, so that the recycled toilet flushing water has the functions of disinfection and deodorization, cuts off viruses in the sewage, ensures the cleaning of the toilet, and reduces the odor of the toilet. Can realize zero discharge of toilet excrement and urine sewage and resource recycling, and effectively avoid the new pollution problem caused by sludge and sediment in the traditional treatment method.
The technical scheme of the invention is as follows:
the equipment for recycling the feces and urine in the toilet is characterized by comprising a feces decomposition system, a microorganism treatment system and a high-grade oxidation system:
the excrement decomposing system comprises a solid-liquid separator, a collecting barrel and an excrement decomposing reactor, wherein the solid-liquid separator comprises an excrement pipe, a separating plate, a sludge pump, an excrement pipe, an excrement return pipe and a gravity flow pipe; the collecting barrel comprises a fecal and urine reflux pump, a filter screen and a solid collecting barrel; the fecal decomposing reactor comprises a one-way valve, a liquid level sensor, a fecal and urine output pump, a decomposing microorganism bed, a sludge pump, a sludge conveying pipe and a fecal and urine output pipe;
the microorganism treatment system comprises an anaerobic tank, an aerobic tank and an MBR reactor; the anaerobic tank comprises an anaerobic tank biomembrane, an anaerobic tank sewage pump and an anaerobic self-flow pipe; the aerobic tank comprises an aerobic tank biomembrane, an aerobic tank sludge delivery pump, an aerobic aeration pipe and a high-pressure fan; the MBR comprises an MBR conveying pipe and an MBR self-priming pump;
the advanced oxidation system comprises a photocatalysis anaerobic reactor and a reuse water tank; the photocatalytic oxidation reactor comprises an ultraviolet lamp, an ozone aeration head, an ozone tube and an oxygen source ozone generator; the reuse water tank comprises a reuse water input pipe and a reuse water output pipe;
the excrement and urine of the toilet bowl enter the solid-liquid separator through the excrement and urine pipe, the excrement and urine are primarily separated through the separating plate, the solid excrement and the toilet paper enter the solid collecting barrel through the excrement conveying pipe, the solid is filtered for the second time through the filter screen, the filtered excrement and urine liquid enters the collecting barrel, and the excrement and urine conveying pump drives the excrement and urine returning pipe to flow back to the solid-liquid separator for re-separation; the separated liquid manure enters the lower end of the manure decomposition reactor through a gravity flow pipe, then the decomposed and filtered liquid of the decomposition microbial bed rises to a control liquid level, a liquid level sensor triggers, a manure conveying pump drives the manure to enter an anaerobic tank through the manure conveying pipe, a one-way valve is arranged on the manure conveying pipe to prevent the liquid of the anaerobic tank from flowing back, a sludge pump in a solid-liquid separator and a sludge pump in the manure decomposition reactor regularly suck sludge, the sludge is conveyed into a solid collecting barrel through a sludge conveying pipe, solid-liquid separation is carried out through a filter screen, and the separated liquid is conveyed into a solid-liquid separator through a manure reflux pump;
the method comprises the steps that the excrement and urine enter an anaerobic tank through a excrement and urine conveying pipe, the reaction time is 20 hours, the excrement and urine is decomposed into partial organic matters through the anaerobic tank, the supernatant enters the aerobic tank through an anaerobic self-flowing pipe, the dissolved oxygen of microorganisms is guaranteed through the aerobic tank biological film and aeration of an aeration pipe of the aerobic tank by a high-pressure fan, the excrement and urine organic matters are further degraded, the reaction time is 20 hours, the excrement and urine sewage enters an MBR reactor, the supernatant after the separation of the aerobic tank biological film is conveyed into a photocatalytic oxidation reactor through an MBR self-sucking pump and an MBR reactor conveying pipe, and the supernatant is subjected to organic matter degradation, disinfection, sterilization and decolorization through ozone output by an ultraviolet lamp and an ozone aeration head; ozone of the ozone aeration head is supplied by an oxygen source ozone generator through an ozone pipe; the treated supernatant fluid enters a reuse water tank through the reuse water input pipe, the reuse water enters a toilet for flushing or greening and irrigating through the reuse water output pipe, and the anaerobic tank sewage pump and the aerobic tank sludge conveying pump also regularly suck sludge and send the sludge into the solid collecting barrel through the sludge conveying pipe.
The invention has the technical effects that:
the invention not only effectively solves the problems of waste and pollution of water resources caused by directly discharging the fecal sewage into a sewer pipe, but also effectively solves the problems of waste water reuse and toilet odor in the prior toilet, and the treated reuse water reaches the urban miscellaneous water standard in urban sewage recycling and urban miscellaneous water quality (GB/T18920-2002).
Drawings
Fig. 1 is a schematic diagram of the construction of the equipment for recycling the feces and urine in the toilet of the present invention.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic structural diagram of a toilet feces and urine recycling device according to the present invention. As can be seen from the figure, the toilet excrement recycling treatment equipment comprises an excrement decomposition system, a microorganism treatment system and a high-grade oxidation system:
the fecal decomposing system comprises a solid-liquid separator 108, a collecting barrel 106 and a fecal decomposing reactor 112, wherein the solid-liquid separator 108 comprises a fecal pipe 100, a separating plate 101, a sludge pump 102, a fecal feeding pipe 103, a fecal backflow pipe 104 and a gravity flow pipe 109; the collecting barrel 106 comprises a fecal and urine reflux pump 105, a filter screen 107 and a solid collecting barrel 117; the fecal decomposing reactor 112 comprises a one-way valve 110, a liquid level sensor 111, a fecal and urine output pump 113, a decomposing microorganism bed 114, a sludge pump 115, a sludge conveying pipe 116 and a fecal and urine output pipe 118;
the microorganism treatment system comprises an anaerobic tank 20, an aerobic tank 207 and an MBR reactor 208; the anaerobic tank 200 comprises an anaerobic tank biomembrane 201, an anaerobic tank sewage pump 202 and an anaerobic self-flow pipe 203; the aerobic tank 207 comprises an aerobic tank biomembrane 204, an aerobic tank sludge delivery pump 205, an aerobic aeration pipe 206 and a high-pressure fan 211; the MBR reactor 208 comprises an MBR reactor delivery pipe 209 and an MBR self-priming pump 210;
the advanced oxidation system comprises a photocatalytic anaerobic reactor 300 and a reuse water tank 306; the photocatalytic oxidation reactor 300 comprises an ultraviolet lamp 301, an ozone aeration head 302, an ozone tube 305 and an oxygen source ozone generator 307; the reuse water tank 306 comprises a reuse water input pipe 303 and a reuse water output pipe 304;
the excrement of the toilet stool enters the solid-liquid separator 108 through the excrement pipe 100, the excrement is primarily separated through the separating plate 101, the solid excrement and toilet paper enter the solid collecting barrel 117 through the excrement pipe 103, the solid is secondarily filtered through the filter screen 107, the filtered excrement liquid enters the collecting barrel 106, and the excrement liquid is driven by the excrement conveying pump 105 to flow back to the solid-liquid separator 108 through the excrement return pipe 104 for re-separation; the separated liquid manure enters the lower end of the manure decomposition reactor 112 through a gravity flow pipe 109, then the decomposed and filtered liquid of the decomposition microorganism bed 114 rises to a control liquid level, a liquid level sensor 111 triggers, a manure conveying pump 113 drives the manure to enter an anaerobic tank 200 through a manure conveying pipe 118, a one-way valve 110 is arranged on the manure conveying pipe 118 to prevent the manure liquid of the anaerobic tank 200 from flowing back, a sludge pump 102 in a solid-liquid separator 108 and a sludge pump 115 of the manure decomposition reactor 112 regularly suck sludge, the sludge is sent into a solid collecting barrel 117 through a sludge conveying pipe 116, solid-liquid separation is carried out through a filter screen 107, and the separated liquid is sent into the solid-liquid separator 108 through a manure reflux pump 105;
the fecaluria entering the anaerobic tank 200 through the fecaluria conveying pipe 118 is reacted with the anaerobic tank biological film 201 for 20 hours, the fecaluria is decomposed into partial organic matters through the anaerobic tank 200, the supernatant enters the aerobic tank 207 through the anaerobic gravity flow pipe 203, the organic matters of the fecaluria are further degraded through aeration of the aerobic tank biological film 204 and the aerobic aeration pipe 206, the fecaluria sewage enters the MBR reactor 208 for 20 hours, and the supernatant separated by the aerobic tank biological film 204 is conveyed into the photocatalytic oxidation reactor 300 through the MBR self-priming pump 210 and the MBR reactor conveying pipe 209, and the supernatant is degraded, disinfected, sterilized and decolorized by ozone output by the ultraviolet lamp 301 and the ozone aeration head 302; ozone of the ozone aeration head 302 is supplied by an oxygen source ozone generator 307 through an ozone pipe 305; the treated supernatant enters a reuse water tank 306 through the reuse water input pipe 303, the reuse water enters a toilet for flushing or greening and irrigating through the reuse water output pipe 304, and the anaerobic tank sewage pump 202 and the aerobic tank sludge conveying pump (205) also pump the sludge periodically and send the sludge into the solid collecting barrel 117 through the sludge conveying pipe 116.
Experiments show that the invention not only effectively solves the problems of waste and pollution of water resources caused by directly discharging the fecal sewage into a sewer pipe, but also effectively solves the problems of wastewater reuse and toilet deodorization of the existing toilet.

Claims (5)

1. The equipment for recycling the feces and urine in the toilet is characterized by comprising a feces decomposition system, a microorganism treatment system and an advanced oxidation system:
the fecal decomposing system comprises a solid-liquid separator (108), a collecting barrel (106) and a fecal decomposing reactor (112), wherein the solid-liquid separator (108) comprises a fecal tube (100), a separating plate (101), a sludge pump, a fecal feeding tube (103), a fecal reflux tube (104) and a self-flowing liquid tube (109); the collecting barrel (106) comprises a fecal and urine reflux pump (105), a filter screen (107) and a solid collecting barrel (117); the fecal decomposition reactor (112) comprises a one-way valve (110), a liquid level sensor (111), a fecal output pump (113), a decomposing microorganism bed (114), a sludge pump, a sludge conveying pipe (116) and a fecal output pipe (118);
the microorganism treatment system comprises an anaerobic tank (200), an aerobic tank (207) and an MBR reactor (208); the anaerobic tank (200) comprises an anaerobic tank biomembrane (201), an anaerobic tank sewage pump (202) and an anaerobic self-flow pipe (203); the aerobic tank (207) comprises an aerobic tank biological film (204), an aerobic tank sludge conveying pump (205), an aerobic aeration pipe (206) and a high-pressure fan (211); the MBR reactor (208) comprises an MBR reactor conveying pipe (209) and an MBR self-priming pump (210);
the advanced oxidation system comprises a photocatalysis anaerobic reactor (300) and a recycling water tank (306); the photocatalysis anaerobic reactor (300) comprises an ultraviolet lamp (301), an ozone aeration head (302), an ozone pipe (305) and an oxygen source ozone generator (307); the reuse water tank (306) comprises a reuse water input pipe (303) and a reuse water output pipe (304);
the excrement of the toilet stool enters the solid-liquid separator (108) through the excrement pipe (100), the excrement is primarily separated through the separating plate (101), the solid excrement and the toilet paper enter the solid collecting barrel (117) through the excrement conveying pipe (103), the second filtering is carried out through the filter screen (107), the filtered excrement liquid enters the collecting barrel (106), and the excrement reflux pump (105) drives the excrement reflux pipe (104) to reflux to the solid-liquid separator (108) for re-separation; the separated liquid manure enters the lower end of the manure decomposition reactor (112) through a gravity flow pipe (109), then the decomposed and filtered liquid rises to a control liquid level through a decomposition microorganism bed (114), a liquid level sensor (111) is triggered, a manure output pump (113) drives the manure to enter an anaerobic tank (200) through a manure output pipe (118), organic matters are decomposed through reaction with the anaerobic tank biological film (201), supernatant enters the aerobic tank (207) through an anaerobic gravity flow pipe (203), the organic matters of the manure are further degraded through aeration of an aerobic tank biological film (204) and an aerobic aeration pipe (206), the manure sewage enters the MBR reactor (208), and the supernatant separated by the aerobic tank biological film (204) is sent into the photocatalytic reactor (300) through an MBR self-sucking pump (210) and an MBR reactor conveying pipe (209), and is subjected to degradation, decolorization, organic matter and ozone degradation and sterilization treatment through an ultraviolet lamp (301) and an ozone aeration head (302); the treated supernatant enters a reuse water tank (306) through the reuse water input pipe (303), and the reuse water enters a toilet for flushing or greening and watering through the reuse water output pipe (304);
the excrement output pipe (118) is provided with a one-way valve (110) for preventing the excrement liquid in the anaerobic tank (200) from flowing back;
sludge is pumped by a sludge pump (102) in the solid-liquid separator (108) and a sludge pump (115) of the fecal decomposing reactor (112) periodically, the sludge is sent into the solid collecting barrel (117) through a sludge conveying pipe (116), solid-liquid separation is carried out through a filter screen (107), and separated liquid is sent into the solid-liquid separator (108) through a fecal-urine reflux pump (105).
2. The apparatus for recycling of toilet feces and urine according to claim 1, wherein the reaction time of the feces and urine and the anaerobic tank biofilm (201) is 20 hours.
3. The apparatus for recycling of toilet feces and urine according to claim 1, wherein the ozone of the ozone aeration head (302) is supplied from an oxygen source ozone generator (307) through an ozone pipe (305).
4. The equipment for recycling the toilet excrement and urine according to claim 1, wherein the high-pressure fan (211) is used for supplying aeration of the aerobic tank (207) to provide dissolved oxygen for microorganisms and further degrade the excrement and urine organic matters.
5. The apparatus for recycling of toilet feces and urine according to claim 1, wherein said anaerobic tank sewage pump (202) and said aerobic tank sludge transfer pump (205) periodically pump sludge to be sent to said solids collection tank (117) through a sludge transfer pipe (116).
CN201810717579.1A 2018-07-03 2018-07-03 Toilet excrement and urine recycling treatment equipment Active CN108609814B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109336331A (en) * 2018-11-13 2019-02-15 四川锐源能环科技有限公司 A kind of sanitary installation that realizing toilet waste resource circulation utilization and method
CN109704531A (en) * 2019-01-28 2019-05-03 天津大学 A kind of recovery method as resource for realizing urine excrement processing
CN109694162A (en) * 2019-02-15 2019-04-30 周鼎力 A kind of remodeling septic tank of rural toilet liquid dung and sanitary wastewater processing up to standard
CN114409193B (en) * 2022-01-21 2023-05-02 北京建筑大学 Resource type source separation modularized toilet system and method for treating feces by using same

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EP1873120A1 (en) * 2006-06-28 2008-01-02 Hans Georg Kraus Device for treating fecal waters by biofiltration
CN101956417A (en) * 2010-08-11 2011-01-26 国家海洋局第二海洋研究所 Foam plugging type microbial decomposition water circulating environmental protection toilet for islands
CN102936076A (en) * 2011-08-15 2013-02-20 上海申水环保科技有限公司 Water self-circulating emission-free complete decomposing type bio-environmental protection toilet

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EP1873120A1 (en) * 2006-06-28 2008-01-02 Hans Georg Kraus Device for treating fecal waters by biofiltration
CN101956417A (en) * 2010-08-11 2011-01-26 国家海洋局第二海洋研究所 Foam plugging type microbial decomposition water circulating environmental protection toilet for islands
CN102936076A (en) * 2011-08-15 2013-02-20 上海申水环保科技有限公司 Water self-circulating emission-free complete decomposing type bio-environmental protection toilet

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