CN104207712B - The separating anhydrous convenient machine of fecaluria and using method thereof - Google Patents

The separating anhydrous convenient machine of fecaluria and using method thereof Download PDF

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Publication number
CN104207712B
CN104207712B CN201410476061.5A CN201410476061A CN104207712B CN 104207712 B CN104207712 B CN 104207712B CN 201410476061 A CN201410476061 A CN 201410476061A CN 104207712 B CN104207712 B CN 104207712B
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urine
stool
bag
support
pouches
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CN104207712A (en
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李壮
戴海潮
孙玉静
胡婧婷
倪朋娟
蒋澍
王艺琳
李振
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Changchun Institute of Applied Chemistry of CAS
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Changchun Institute of Applied Chemistry of CAS
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Abstract

The separating anhydrous convenient machine of fecaluria and using method thereof, comprise urinal and w.c.pan; Urinal is made up of urine support pouches and urine support, and urine support pouches is fixed on urine support lower surface edge; W.c.pan is made up of with stool support support pouches of defecating, and stool support pouches is fixed on stool support lower surface edge; There is certain width at the edge of bracket for relieving oneself; When urine support and stool support are combined, can just be placed on the edge of opening of water closet.On overlapping respectively on bracket for relieving oneself before stool and urine, defecation bag frame is on water closet.Little after an action of the bowels by urine bag tying, by tying stool bag, toilet paper and disinfected paper napkin, the stool outer bag put into together containing adsorbent is sealed greatly after an action of the bowels.Packed stool and urine can be preserved for a long time, can be used for producing fertilizer, biological products, feed, biogas etc.The present invention, without the need to transforming existing water closet, achieves fecaluria and is separated, solve the problem that flush toilet brings.

Description

The separating anhydrous convenient machine of fecaluria and using method thereof
Technical field
The present invention relates to Public Health Technology field, be specifically related to that a kind of volume is little, lightweight, using method is simple, without the need to the separating anhydrous convenient machine of fecaluria transformed existing water closet and using method thereof.
Background technology
Water-closet is the mark of modern metropolitan cities and urbanization, is also the symbol of human civilization in modern age.It brings convenience to users and health, but, in flush toilet bath in a flash, pollutant is shifted by pipe-line system, and pollutant volume and pollution range are expanded.Although in developed regions, these sewage enter sewage treatment plant and carry out purified treatment, and sewage treatment works is long-term, endless, financial be all a heavy financial burden to local government and individual.And in samll cities and towns much underdeveloped, the sewage of flushing the toilet, without purified treatment, is directly discharged in soil and water, cause the pollution to downstream underground water and surface water for a long time.
Physiology is applied manure to the fields and is urinated and just adheres to two different systems separately, the scavenge port of having nothing in common with each other.Normal person's urine does not have pathogenic microorganisms, and pathogenic microorganisms comprises Enterozoa and is mainly present in excrement.Adult on average produces fecaluria for each person every year and is about 550L, wherein ight soil is about 50L, urinate about 500L, COD (COD) about 27.5kg, nutrient contained in fecaluria is based on nitrogen, phosphorus, potassium, nitrogenous about 4.4kg, phosphorus 0.7kg, potassium 1.3kg, these nutrients about more than 70% are present in urine.The existence form of these nutrients is the most easily absorbed by plants.The existence form of nitrogen is urea, and phosphorus is phos-phate forms, and potassium is ionic species, is more suitable for production estimation in nutrient number ratio chemical fertilizer total in urine.In people's urine, content of beary metal is more much lower than chemical fertilizer in addition, and this is also the important superiority of people one of urinating (P. human relations this, decentralized type sewage process and recycling: conceptual system and enforcement, 2004).If excrement is not separated with urine, mix, be mingled with pathogenic microorganisms etc. in the originally clean urine that can directly utilize, if be applied in farmland, the various diseases such as snail fever, typhoid fever, diarrhoea can be caused.Ight soil or the pathogen such as mosquito, fly carrier and disseminator breed the raw best place of evil, very easily cause infectious disease, cause the incidence of disease to raise.
Because ight soil Macrodilution is lost agriculture using value by flush toilet; Fecaluria mixing and Macrodilution make the abundant nutrition composition that can be used as feed in excrement lose value; Due to flush toilet and fecaluria mixing, treatment morbidity death toll considerably beyond the cardiovascular and cerebrovascular diseases of all number of cancer deaths most important help Thrombolytic Drugs--the urine source of urokinase becomes world problem.How fecaluria is separated to turn waste into wealth has important practical value and social effect.
Summary of the invention
In order to solve prior art Problems existing, the present invention proposes the separating anhydrous convenient machine of a kind of fecaluria and using method thereof.This equipment volume is little, lightweight, and using method is simple, need not carry out transformation can realize excrement and urinate being separated to existing water closet.Fecaluria collected by utilization produces feed, fertilizer, fuel, biogas or biological products, fundamentally solution fecaluria and chemical fertilizer are to the pollution of environment and water pollution problems, likely solve soil because using chemical fertilizer in a large number degenerate problem, likely thoroughly solve the cross-infection of ight soil, likely solve the huge water resource waste that causes of water-closet and energy waste, greatly reduce water treatment plant's sanitary sewage disposal cost, likely thoroughly solve cardiovascular and cerebrovascular diseases most important help Thrombolytic Drugs--the urine source problem of urokinase for the treatment of morbidity death toll considerably beyond all number of cancer deaths.
The technical scheme that the present invention adopts for technical solution problem is as follows:
The separating anhydrous convenient machine of fecaluria of the present invention, is characterized in that, comprises urinal and w.c.pan;
Described urinal is made up of urine support pouches and urine support, and described urine support pouches is fixed on urine support lower surface edge, and described urine support is semicircular structure, and there is certain width at the edge of described urine support;
Described w.c.pan is made up of with stool support support pouches of defecating, and stool support pouches is fixed on stool support lower surface edge, and described stool support is square structure, and there is certain width at the edge of described stool support;
When described urine support and stool support are combined, can just be placed on the edge of opening of water closet;
Also comprise: multiple urine bag and multiple stool outer bag with Self-enclosing; Adsorbent and a stool bag is all comprised in each stool outer bag; Described urine bag can be enclosed within urinal, for holding urine; Described stool bag can be enclosed within w.c.pan, for holding stool; Described stool outer bag can completely cut off smell, can place the stool bag after use; Described adsorbent is used for absorbing carbon dioxide, mercaptan and hydrogen sulfide, prevents rise bag and stink.
The border width of described urine support is 2 centimetres, and length is 25 centimetres, and width is 16 centimetres; Described urine support adopts plastics, stainless steel or aluminium alloy to make.
The border width of described stool support is 2 centimetres, and length is 25 centimetres, and width is 16 centimetres; Described stool support adopts plastics, stainless steel or aluminium alloy to make.
Described urine support pouches adopts nylon or plastics to make; The degree of depth of described urine support pouches is 20 centimetres.
Described stool support pouches adopts nylon or plastics to make; The degree of depth of described stool support pouches is 20 centimetres.
Described stool outer bag is Aluminum-plastic composite bag.
Adsorbent in described stool outer bag is soda lime, soda lime, caustic soda, KOH or LiOH.
Toilet paper and disinfected paper napkin is also comprised in each stool outer bag; Described toilet paper is used for cleaning and goes to toilet position, and described disinfected paper napkin is used for Hand sterilization, and the toilet paper after using is placed in stool outer bag after a procedure, and the disinfected paper napkin after using also is placed in stool outer bag after a procedure.
The using method of the separating anhydrous convenient machine of fecaluria of the present invention, condition and the step of the method are as follows:
1, urine
Women:
Step one, urine bag to be sleeved in the urine support pouches that is fixedly connected with urine support lower surface edge, cover is had the urine stentplacement of urine bag on the edge of opening of water closet;
Step 2, cover cushion;
Step 3, urine just to be entered in urine bag;
Step 4, lifting up seat;
Step 5, by urine bag tying, take out, collect from urine support pouches, before not setting up urine collecting treatment system, urine bag is broken by some to be collected later, pours urine into sewer and washes away in the lump; If urine collecting treatment system can be set up, then can make fertilizer or biological products by this system;
Step 6, urinal to be taken out from water closet, and keep properly;
The male sex:
Step one, urine bag is sleeved in the urine support pouches that is fixedly connected with urine support lower surface edge;
Step 2, urine just to be entered in urine bag;
Step 3, by urine bag tying, take out, collect from urine support pouches, before not setting up urine collecting treatment system, urine bag is broken by some to be collected later, pours urine into sewer and washes away in the lump; If urine collecting treatment system can be set up, then can make fertilizer or biological products by this system;
Step 4, urinal to be kept properly;
2, defecate
Step one, taking-up urine bag, a stool outer bag, open the Self-enclosing of stool outer bag, take out stool bag, toilet paper, disinfected paper napkin, urine bag is sleeved in the urine support pouches that is fixedly connected with urine support lower surface edge, stool bag is sleeved in the stool support pouches that is fixedly connected with support lower surface edge of defecating;
Step 2, by cover have the urine support of urine bag, cover have the stool stentplacement of stool bag on the edge of opening of water closet;
Step 3, cover cushion;
Step 4, by urine with stool just enter respectively in urine bag and stool bag;
Step 5, clean anus with toilet paper after lose in stool outer bag;
Step 6, lifting up seat;
Step 7, by urine bag tying, collect, before not setting up urine collecting treatment system, urine bag is broken by some to be collected later, pours urine into sewer and washes away in the lump; If urine collecting treatment system can be set up, then can make fertilizer or biological products by this system;
Step 8, by stool bag tying, from stool support pouches take out, put into the stool outer bag containing adsorbent;
Step 9, with disinfected paper napkin, hand to be wiped clean, sterilization, also put into stool outer bag with the disinfected paper napkin crossed;
Step 10, the Self-enclosing sealing of will defecate in outer bag, if conditions permit, with sealing machine sealing to ensure that content does not leak for a long time; Described stool outer bag is Aluminum-plastic composite bag, effectively can completely cut off smell, and adsorbent can absorbing carbon dioxide, mercaptan and hydrogen sulfide, prevents rise bag and stink; Before collection system for handling is not set up, described stool outer bag can be preserved for a long time, also can send destructor plant process, can make biogas, feed fertilizer and industrial chemicals after collection system for handling is set up;
Step 11, urinal and w.c.pan to be taken out from water closet, and keep properly.
The invention has the beneficial effects as follows:
1, the invention provides the separating anhydrous convenient machine of a kind of fecaluria, put stool bag and urine bag during use, frame can complete to go to toilet on water closet can accomplish that fecaluria is separated simultaneously.
2, the present invention is without the need to transforming existing water closet, without the need to water, solves huge water resource waste and energy waste that water-closet causes, greatly reduces the processing cost of sewage treatment plant's sanitary sewage, economize on resources.
3, the present invention can utilize collected fecaluria to produce feed, fertilizer, fuel, biogas or biological products, and fundamentally solution fecaluria and chemical fertilizer are to the pollution of environment and water pollution problems, can solve the problem that soil is degenerated because using chemical fertilizer in a large number.
4, the present invention can reduce the generation of the enteric infectious disease caused by pathogen in ight soil, decreases the economic cost spending of the enteric infectious disease caused because of ight soil.
5, the present invention likely thoroughly solves the urine source problem for the treatment of morbidity death toll considerably beyond the most important help Thrombolytic Drugs-urokinase of cardiovascular and cerebrovascular diseases of all number of cancer deaths.
Accompanying drawing explanation
Fig. 1 is the structural representation of urinal.
Fig. 2 is the structural representation of w.c.pan.
Fig. 3 is the top view of water closet.
Fig. 4 is the top view after water closet and urinal and w.c.pan are assembled.
Fig. 5 is the side view after water closet and urinal and w.c.pan are assembled.
In figure: 1, urinal, 2, w.c.pan, 3, urine support pouches, 4, urine support, 5, water closet, 6, stool support pouches, 7, stool support.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The separating anhydrous convenient machine of fecaluria of the present invention, comprises urinal 1 and w.c.pan 2, as shown in Figure 1; urinal 1 is made up of urine support pouches 3 and urine support 4; urine support pouches 3 is fixed on urine support 4 lower surface edge, and for carrying urine bag, urine support 4 is semicircular structure.As shown in Figure 2, w.c.pan 2 is made up of stool support pouches 6 and stool support 7, and stool support pouches 6 is fixed on stool support 7 lower surface edge, and for carrying stool bag, stool support 7 is square structure.The structure of existing water closet 5 as shown in Figure 3.As shown in Figure 4 and Figure 5, there is certain width at the edge of the urine support 4 of urinal 1 and the stool support 7 of w.c.pan 2, when the urine support 4 of urinal 1 and the stool support 7 of w.c.pan 2 are combined, can just be placed on the edge of opening of water closet 5.
The separating anhydrous convenient machine of fecaluria of the present invention, also need to prepare multiple urine bag and multiple stool outer bag with Self-enclosing, wherein each stool outer bag comprises stool bag, adsorbent, toilet paper and a disinfected paper napkin etc.
The using method of the separating anhydrous convenient machine of fecaluria of the present invention, condition and the step of the method are as follows:
1, urine
Women:
Step one: urine bag is sleeved in the urine support pouches 3 that is fixedly connected with urine support 4 lower surface edge, has the urine support 4 of urine bag to be placed on the edge of opening of water closet 5 in cover.
Step 2, cover cushion.
Step 3, urine just to be entered in urine bag.
Step 4, lifting up seat.
Step 5, by urine bag tying, take out from urine support pouches 3, collect, before not setting up urine collecting treatment system, urine bag is broken after some to be collected, pour urine into sewer and wash away in the lump; If urine collecting treatment system can be set up, then can make fertilizer or biological products etc. by this system.
Step 6, urinal 1 to be taken out from water closet 5, and keep properly.
The male sex:
Step one, urine bag is sleeved in the urine support pouches 3 that is fixedly connected with urine support 4 lower surface edge;
Step 2, urine just to be entered in urine bag;
Step 3, by urine bag tying, take out from urine support pouches 3, collect, before not setting up urine collecting treatment system, urine bag is broken after some to be collected, pour urine into sewer and wash away in the lump; If urine collecting treatment system can be set up, then can make fertilizer or biological products by this system;
Step 4, urinal 1 to be kept properly;
2, defecate
Step one, taking-up urine bag, a stool outer bag, open the Self-enclosing of stool outer bag, take out stool bag, toilet paper, disinfected paper napkin, urine bag is sleeved in the urine support pouches 3 that is fixedly connected with urine support 4 lower surface edge, stool bag is sleeved in the stool support pouches 6 that is fixedly connected with support 7 lower surface edge of defecating.
Step 2, by cover have the urine support 4 of urine bag, cover have the stool support 7 of stool bag to be placed on the edge of opening of water closet 5.
Step 3, cover cushion.
Step 4, by urine with stool just enter respectively in urine bag and stool bag.
Step 5, clean anus with toilet paper after lose in stool outer bag.
Step 6, lifting up seat.
Step 7, by urine bag tying, take out from urine support pouches 3, collect, before not setting up urine collecting treatment system, urine bag is broken after some to be collected, pour urine into sewer and wash away in the lump; If urine collecting treatment system can be set up, then can make fertilizer or biological products etc. by this system.
Step 8, by stool bag tying, from stool support pouches 6 take out, put into the stool outer bag containing adsorbent.
Step 9, with disinfected paper napkin, hand to be wiped clean, sterilization, also put into stool outer bag with the disinfected paper napkin crossed.
Step 10, the Self-enclosing sealing of will defecate in outer bag, if conditions permit, with sealing machine sealing to ensure that content does not leak for a long time.Stool outer bag is Aluminum-plastic composite bag, effectively can completely cut off smell, and adsorbent can the gas such as absorbing carbon dioxide, mercaptan, hydrogen sulfide, prevents rise bag and stink.Before collection system for handling is not set up, stool outer bag can be preserved for a long time, also can send destructor plant process, can make biogas, feed fertilizer and industrial chemicals etc. after collection system for handling is set up.
Step 11, urinal 1 and w.c.pan 2 to be taken out from water closet 5, and keep properly.
In present embodiment, the border width of urine support 4 and stool support 7 can change, and is advisable with 2 centimetres.
In present embodiment, the material of urine support 4 and stool support 7 can change, and is advisable with plastics, stainless steel or aluminium alloy.
In present embodiment, the size of urine support 4 and stool support 7 can change, and be 25 centimetres with length, width is 16 centimetres and is advisable.
In present embodiment, the material of urine support pouches 3 and stool support pouches 6 can change, and is advisable with nylon or plastics.
In present embodiment, the degree of depth of urine support pouches 3 and stool support pouches 6 can change, and is advisable with 20 centimetres.
In present embodiment, stool outer bag is Aluminum-plastic composite bag; The size of stool outer bag can change, and be 25 centimetres with length, width is 15 centimetres and is advisable.
In present embodiment, adsorbent is soda lime, white lime, caustic soda, KOH, LiOH etc.
As long as urinal 1 and w.c.pan 2 put urine bag respectively and can complete with stool bag and go to toilet in the present invention, while can to stool and urine separate collection.Use the present invention without the need to transforming existing water closet, volume is little, lightweight, and using method is simple.Fecaluria collected by utilization produces feed, fertilizer, fuel, biogas or biological products, fundamentally solution fecaluria and chemical fertilizer are to the pollution of environment and water pollution problems, likely solve soil because using chemical fertilizer in a large number degenerate problem, likely thoroughly solve the cross-infection of ight soil, likely solve the huge water resource waste that causes of water-closet and energy waste, greatly reduce water treatment plant's sanitary sewage disposal cost, likely thoroughly solve the urine source problem for the treatment of morbidity death toll considerably beyond the most important help Thrombolytic Drugs-urokinase of cardiovascular and cerebrovascular diseases of all number of cancer deaths.
Obviously, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that the those of ordinary skill for described technical field, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.

Claims (10)

1. the separating anhydrous convenient machine of fecaluria, is characterized in that, comprises urinal (1) and w.c.pan (2);
Described urinal (1) is made up of urine support pouches (3) and urine support (4), described urine support pouches (3) is fixed on urine support (4) lower surface edge, described urine support (4) is semicircular structure, and there is certain width at the edge of described urine support (4);
Described w.c.pan (2) is made up of stool support pouches (6) and stool support (7), stool support pouches (6) is fixed on stool support (7) lower surface edge, described stool support (7) is square structure, and there is certain width at the edge of described stool support (7);
When described urine support (4) and stool support (7) are combined, be just placed on the edge of opening of water closet (5);
Also comprise: multiple urine bag and multiple stool outer bag with Self-enclosing; Adsorbent and a stool bag is all comprised in each stool outer bag; Described urine bag is enclosed within urinal (1), for holding urine; Described stool bag is enclosed within w.c.pan (2), for holding stool; Described stool outer bag can completely cut off smell, can place the stool bag after use; Described adsorbent is used for absorbing carbon dioxide, mercaptan and hydrogen sulfide, prevents rise bag and stink.
2. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, the border width of described urine support (4) is 2 centimetres, and length is 25 centimetres, and width is 16 centimetres; Described urine support (4) adopts plastics, stainless steel or aluminium alloy to make.
3. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, the border width of described stool support (7) is 2 centimetres, and length is 25 centimetres, and width is 16 centimetres; Described stool support (7) adopts plastics, stainless steel or aluminium alloy to make.
4. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, described urine support pouches (3) adopts nylon or plastics to make; The degree of depth of described urine support pouches (3) is 20 centimetres.
5. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, described stool support pouches (6) adopts nylon or plastics to make.
6. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, the degree of depth of described stool support pouches (6) is 20 centimetres.
7. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, described stool outer bag is Aluminum-plastic composite bag.
8. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, the adsorbent in described stool outer bag is soda lime, soda lime, caustic soda, KOH or LiOH.
9. the separating anhydrous convenient machine of fecaluria according to claim 1, is characterized in that, also comprises toilet paper and disinfected paper napkin in each stool outer bag; Described toilet paper is used for cleaning and goes to toilet position, and described disinfected paper napkin is used for Hand sterilization, and the toilet paper after using is placed in stool outer bag after a procedure, and the disinfected paper napkin after using also is placed in stool outer bag after a procedure.
10. the using method of the separating anhydrous convenient machine of fecaluria as claimed in claim 9, it is characterized in that, condition and the step of the method are as follows:
1, urine
Women:
Step one, urine bag to be sleeved in the urine support pouches (3) that is fixedly connected with urine support (4) lower surface edge, to have the urine support (4) of urine bag to be placed on the edge of opening of water closet (5) in cover;
Step 2, cover cushion;
Step 3, urine just to be entered in urine bag;
Step 4, lifting up seat;
Step 5, by urine bag tying, take out from urine support pouches (3), collect, before not setting up urine collecting treatment system, urine bag is broken after some to be collected, pour urine into sewer and wash away in the lump; If urine collecting treatment system can be set up, then make fertilizer or biological products by this system;
Step 6, urinal (1) to be taken out from water closet (5), and keep properly;
The male sex:
Step one, urine bag is sleeved in the urine support pouches (3) that is fixedly connected with urine support (4) lower surface edge;
Step 2, urine just to be entered in urine bag;
Step 3, by urine bag tying, take out from urine support pouches (3), collect, before not setting up urine collecting treatment system, urine bag is broken after some to be collected, pour urine into sewer and wash away in the lump; If urine collecting treatment system can be set up, then make fertilizer or biological products by this system;
Step 4, urinal (1) to be kept properly;
2, defecate
Step one, taking-up urine bag, a stool outer bag, open the Self-enclosing of stool outer bag, take out stool bag, toilet paper, disinfected paper napkin, urine bag is sleeved in the urine support pouches (3) that is fixedly connected with urine support (4) lower surface edge, stool bag is sleeved in the stool support pouches (6) that is fixedly connected with support of defecating (7) lower surface edge;
Step 2, by cover have the urine support (4) of urine bag, cover have the stool support (7) of stool bag to be placed on the edge of opening of water closet (5);
Step 3, cover cushion;
Step 4, by urine with stool just enter respectively in urine bag and stool bag;
Step 5, clean anus with toilet paper after lose in stool outer bag;
Step 6, lifting up seat;
Step 7, by urine bag tying, take out from urine support pouches (3), collect, before not setting up urine collecting treatment system, urine bag is broken after some to be collected, pour urine into sewer and wash away in the lump; If urine collecting treatment system can be set up, then make fertilizer or biological products by this system;
Step 8, by stool bag tying, from stool support pouches (6), taking-up, puts into the stool outer bag containing adsorbent;
Step 9, with disinfected paper napkin, hand to be wiped clean, sterilization, also put into stool outer bag with the disinfected paper napkin crossed;
Step 10, the Self-enclosing sealing of will defecate in outer bag; Described stool outer bag is Aluminum-plastic composite bag, effectively can completely cut off smell, and adsorbent can absorbing carbon dioxide, mercaptan and hydrogen sulfide, prevents rise bag and stink; Before collection system for handling is not set up, described stool outer bag can be preserved for a long time, or send destructor plant process, can make biogas, feed fertilizer and industrial chemicals after collection system for handling is set up;
Step 11, urinal (1) and w.c.pan (2) to be taken out from water closet (5), and keep properly.
CN201410476061.5A 2014-09-16 2014-09-16 The separating anhydrous convenient machine of fecaluria and using method thereof Active CN104207712B (en)

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CN110393466B (en) * 2018-04-25 2021-06-29 中国科学院长春应用化学研究所 Semi-automatic independent excrement and urine packaging waterless closestool and using method thereof
CN108433622A (en) * 2018-05-14 2018-08-24 刘影 A kind of Environmental protection dry toilet without water power
CN111021784B (en) * 2019-10-30 2021-02-26 江苏省环境科学研究院 Toilet for field
CN110897537A (en) * 2019-12-25 2020-03-24 中国科学院长春应用化学研究所 Novel waterless urinal

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CN2082148U (en) * 1991-01-24 1991-08-07 李振岐 Chair type portable pollution-proof and turn-over-proof children bed pan
JPH06277163A (en) * 1993-03-24 1994-10-04 Nippon Soda Co Ltd Disposable defecation bag used in case of disaster
CN100459919C (en) * 2004-08-20 2009-02-11 谈世德 Portable toilet in vehicle
CN201564401U (en) * 2009-07-17 2010-09-01 杜兴文 Double-door bag-type squatting pan
CN201791004U (en) * 2010-07-29 2011-04-13 王小刚 Disposable sanitary urine collecting bag

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