WO2008044806A1

WO2008044806A1 - Multipurpose portable rest room of feces and urine separating type suitable for an area having no infrastructure

Info

Publication number: WO2008044806A1
Application number: PCT/KR2006/004420
Authority: WO
Inventors: Youn Kwon Kim; Nahm Chung Jung; Ji Yeon Kim; Jin Hee Byun
Original assignee: Korea Water Resources Corporation
Priority date: 2006-10-09
Filing date: 2006-10-27
Publication date: 2008-04-17
Also published as: KR100748849B1

Abstract

Disclosed is a multipurpose portable rest room of feces and urine separating type, which can be installed and managed in areas having no water and sewage facilities as well as power supply source. The rest room comprises a rest room in which a toilet bowl and a urinal are provided, and a tank located underneath the rest room and adapted to store feces and urine therein. The toilet bowl comprises a vertical divider mounted in the center thereof for separating feces and urine from each other when a user defecates and/or urinates into the toilet bowl in a sitting posture, so as to allow the feces and the urine to be directed into a feces discharge hole and a urine discharge hole, respectively. The tank is divided into a urine storage region and a feces storage region. The urine, which is discharged from the toilet bowl and the urinal, is introduced into the urine storage region after passing through a nitrification cartridge and a de-nitrification cartridge to remove a nitrogen component contained therein. No urine is introduced into the feces storage region, to allow only the feces to be fermented, so as to be used as a natural compost.

Description

MULTIPURPOSE PORTABLE RESTROOM OF FENCES AND URINE SEPARATING TYPE SUITABLE FOR AN AREA HAVING NO

INFRASTRUCTURE Technical Field

[1] The present invention relates to a multipurpose portable rest room of feces and urine separating type, which can be installed and managed in areas having no water and sewage facilities as well as power supply source, and more particularly, to a multipurpose portable rest room, which is designed to be selectively assembled and constructed in consideration of the situation of an installation place and which enables composting of feces and water treatment of urine without requiring a separate power source.

[2]

Background Art

[3] Generally, portable rest rooms are installed in areas having no appropriate water supply facilities or sewage facilities, and have a need for a variety of on-site treatment facilities for efficiently processing urine and feces generated in restricted conditions.

[4] A variety of portable rest rooms have been installed and managed in areas having no appropriate water supply facilities or sewage facilities, such as military areas, remote mountain villages, large-scale parks targeting unspecified users, and so on. However, most conventional portable rest rooms simply serve as a "feces and urine reservoir" and have a difficulty to acquire byproducts using feces and urine, such as organic composts because they have no function of separating solid substances from liquid substances. Although some of conventional portable rest rooms have a function of composting using feces and urine, they have a need for additional facilities, such as feces and urine spraying, transferring, drying devices, and so on. Therefore, these conventional portable rest rooms suffer from a restricted available space therein as well as a high risk of failure of the additional facilities on the nature of complex machines. Also, the conventional portable rest rooms having a composting function should have a separate power source, thus inevitably resulting in a difficulty in management and increased maintenance costs. Accordingly, it can be said that the above described conventional portable rest rooms lose their original purpose as a portable rest room.

[5] Moreover, in the conventional portable rest rooms, they store feces and urine in the same place and have a difficulty in the composting of the stored feces and urine. Also, no conventional portable rest rooms consider secondary water pollution by nitrogen oxides contained in urine and accordingly, it is essential to provide a water treatment performed in a sewage disposal plant with nitrification and de-nitrification processes, etc. for the removal of nitrogen compounds contained in urine. [6]

Disclosure of Invention

Technical Problem

[7] Therefore, the present invention has been made in view of the above problems, and it is a first object of the present invention to provide a non-powered multipurpose portable rest room of feces and urine separating type, which can be installed and managed in areas having no water and sewage facilities as well as power supply source.

[8] It is a second object of the present invention to provide a multipurpose portable rest room, in which feces and urine can be collected and stored separately so that the feces are utilized for the production of an organic compost via an anaerobic composting process and the urine is passed through nitrification and de-nitrification cartridges for the removal of a nitrogen component contained therein, thereby achieving an outstanding reduction in the pollution of water.

[9] It is a third object of the present invention to provide a multipurpose portable rest room of feces and urine separating type, which has no necessity for additional water and sewage facilities and consumption of power, thus being expediently usable in areas having no sewer and power supply source, and which can be operated with simplified physical and chemical procedures and sufficiently satisfy a variety of requirements and improvements in relation with easy operation and management thereof.

[10]

Technical Solution

[11] In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of a multipurpose portable rest room of feces and urine separating type suitable for areas having no sewer, the rest room comprising a rest room in which a toilet bowl and a urinal are provided, and a tank located underneath the rest room for storing feces and urine therein, wherein the toilet bowl comprises a vertical divider mounted in the center thereof for separating feces and urine from each other when a user defecates and/or urinates into the toilet bowl in a sitting posture, so as to allow the feces and the urine to be directed into a feces discharge hole and a urine discharge hole, respectively, the tank is divided into a urine storage region and a feces storage region, and the urine, which is discharged from the toilet bowl and the urinal, is directed into the urine storage region of the tank after passing through a nitrification cartridge and a de-nitrification cartridge for the removal of a nitrogen component contained in the urine. [12] Preferably, the toilet bowl further comprises an upper lid, a lower closer plate located over the feces discharge hole of the toilet bowl, and a link connecting the upper lid and the lower closer plate to each other. If the user lifts the upper lid of the toilet bowl, the lower closer plate is simultaneously operated by the link to open the feces discharge hole and conversely, if the user lowers the upper lid after stool, the lower closer plate is operated by the link to close the feces discharge hole. This has the effects of preventing the user from feel unpleasant while using the toilet bowl, preventing generation of bad smell, and achieving the provision of a sanitary toilet bowl.

[13] Preferably, the nitrification cartridge is located in an upper front position of the urine storage region and has a box shape so as to be taken out of the urine storage region in a drawer manner. The nitrification cartridge comprises: a porous sidewall plate designed to be opened; a porous top plate designed to be opened; a multiple- layered bottom plate disposed in the cartridge and having a gentle inclination; baffle plates arranged on the bottom plate to define a zigzag pattern; a filler charged in an interior space of the cartridge and including at least one of reed, sawdust, peat, moss, or microorganisms secured to supporters; and a filter made of a non- woven fabric and an iron net.

[14] Preferably, the de-nitrification cartridge comprises: a cabinet type cartridge body; and a plurality of cells inserted in the body and each having a mesh type or spongy type microorganism supporter. The de-nitrification cartridge is configured to block introduction of outside air including oxygen thereinto, and performs a microorganism de- nitrification process using nitrate nitrogen and nitrite nitrogen contained in the urine directed from the nitrification cartridge.

[15] Preferably, the multipurpose portable rest room further comprises a rainwater collecting device installed at a roof of the rest room for collecting rainwater. The roof is formed, at a surface thereof, with corrugated water passages and is inclined toward the rainwater collecting device. The collected rainwater is gathered in a rainwater reservoir that is located below the rainwater collecting device and installed at an outer wall surface of the rest room. Thereby, the collected rainwater is usable as auxiliary wash water to wash the urinal and the urine region of the toilet bowl in areas having a limit in the use of water. The rainwater collecting device comprises: an iron net for preventing invasion of insects, an opening/closing adjusting plate having a weight, and a funnel to configured to ensure easy introduction of rainwater while preventing evaporation of the rainwater.

[16]

Brief Description of the Drawings [17] The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: [18] FIG. 1 is a perspective view illustrating the configuration of a multipurpose portable rest room of feces and urine separating type according to an embodiment of the present invention;

[19] FIG. 2 is a side sectional view of the portable rest room shown in FIG. 1;

[20] FIG. 3 is a front sectional view of the portable rest room shown in FIG. 1 ;

[21] FIGS. 4 and 5 are sectional views, respectively, illustrating opened and closed states of an upper lid and a lower closer plate provided at a toilet bowl shown in FIG. 1, for illustrating an operation for separating feces and urine from each other in detail; [22] FIG. 6 is an exploded perspective view illustrating a rainwater collecting device installed at the roof of the portable rest room according to the present invention; [23] FIG. 7 is a perspective view illustrating the configuration of a nitrification cartridge for use in the treatment of urine according to the present invention; [24] FIG. 8 is a perspective view illustrating the configuration of a de-nitrification cartridge for use in the treatment of urine according to the present invention; [25] FIG. 9 is a rear perspective view illustrating the configuration of a multipurpose portable rest room of feces and urine separating type according to another embodiment of the present invention; and [26] FIG. 10 is a perspective view illustrating the assembling of walls forming the portable rest room according to the present invention. [27]

Best Mode for Carrying Out the Invention [28] Now, preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, will be described in detail with reference to the accompanying drawings. [29] FIGS. 1 to 3 are a perspective view, a side sectional view, and a front sectional view, respectively, schematically illustrating the configuration of a multipurpose portable rest room of feces and urine separating type according to a first embodiment of the present invention. The multipurpose portable rest room of the present embodiment comprises a rest room 1 in which a toilet bowl 100 and a urinal 200 are installed, and a tank 2 located below the rest room 1. The rest room 1 and the tank 2 are detachably coupled to each other. [30] The rest room 1 is constructed by wall members 10 that are designed to be assembled with one another in a snap fitting manner. Each wall member 10 includes inner and outer panels 12 and 14 that are made of a reinforced plastic material, an insulation material 16 interposed between the inner and outer panels 12 and 14, and a basic frame 17. In addition, four edge frames 18 are snap-fitted to four edges of the assembly of the inner and outer panels 12 and 14 in a state wherein the basic frame 17 is interposed between the inner and outer panels 12 and 14. Preferably, each wall member 10 is configured to be fitted to corner supporting posts 19 from an upper side of the posts 19 that serve as columns or corners (See FIG. 10). The wall members 10 having the above described configuration ensure a free change in the construction structure of the rest room and can be assembled directly on the installation spot without using bolts or other equipment.

[31] The rest room 1 is provided, at a front wall thereof, with an entrance/exit in the same manner as a conventional mobile or portable rest room and, at a sidewall thereof, with a window 13 for the sake of ventilation and lighting. The window 13 is preferably covered with a fly screen for preventing the invasion of harmful insects, such as flies and mosquitoes.

[32] In the rest room 1 is provided the toilet bowl 100 and the urinal 200. The installation positions of the toilet bowl 100 and the urinal 200 are not limited to the illustration of the drawings, and may have a variety of arrangements.

[33] Considering first the configuration of the toilet bowl 100, the toilet bowl 100 incorporates a vertical divider 102, which is mounted in the center of the toilet bowl 100 and adapted to separate feces and urine from each other when a user defecates and/or urinates into the toilet bowl 100 in a sitting posture. The toilet bowl 100 is divided into an urine region, provided with a urine discharge hole 104, and a feces region provided with a feces discharge hole 106. Accordingly, the toilet bowl 100 allows feces and urine to be separately discharged therefrom. With the provision of the divider 102 in the center of the toilet bowl 100, it is possible to prevent urine from invading the feces discharge hole 106 formed in the feces region of the toilet 100. The urine discharge hole 104 is provided with a filtering net 105, in order to primarily prevent passage of solid impurities.

[34] The feces region of the toilet bowl 100 is provided with the feces discharge hole

106 so that feces can be dropped into the feces discharge hole 106 by gravitational force. The feces discharge hole 106 is covered with a lower closer plate 107. As shown in FIGS. 4 and 5, if the user lifts an upper lid 108 of the toilet bowl 100, the lower closer plate 107, which is connected to the upper lid 108 via a link 109, is simultaneously operated to open the feces discharge hole 106. Conversely, if the user lowers the upper lid 108 after stool, the lower closer plate 107 is operated by the link 109 to close the feces discharge hole 106.

[35] In the case of conventional rest rooms, there are provided no lower closer plate 107 as used in the present invention. Accordingly, feces and urine deposited in a tank may be directly seen through a bottom hole of the toilet during defecation and/or urination, thus making the user feel unpleasant. However, in the present invention, the lower closer plate 107 is located at the bottom of the toilet bowl 100 and in particular, is designed to be pivotally rotated by a predetermined angle, preferably, by an angle of more than 90 degrees, so as to open the feces discharge hole 106. Also, the lower closer plate 107 has a function of preventing the interior of the toilet bowl 100 from being stained by feces and urine deposited. The lower closer plate 107 also serves to isolate the interior of the toilet bowl 100 from a feces storage region (t2) of the tank 2 at the same time as the upper lid 108 is lowered to close the toilet bowl 100, so as to prevent the user from being exposed to visual unpleasantness and bad smells.

[36] To maximize the above described advantageous function of the lower closer plate

107, the toilet bowl 100 is provided, at a lower end thereof, with an O-ring 101 that is made of rubber, to allow the lower closer plate 107 to continuously come into close contact with the feces discharge hole 106.

[37] Also, in the present invention, a water flush device is allotted only in the urine region of the toilet bowl 100. This has the effect of reducing the amount of rinsing water to a level of 30% or less of the conventionally used amount of water, resulting in efficient water-saving. By virtue of the reduced use of water, the rest room of the present invention can be installed even in areas having extremely limited use of water.

[38] The toilet bowl 100 of the present invention is preferably coated with an appropriate material, such as polytetra-fluoroethylene, to efficiently prevent the toilet bowl 100 from being stained by feces and urine.

[39] Meanwhile, the urinal 200 may use a valve that can be manually opened and closed by a button, or automatically opened and closed by a small battery received therein. The rinsing manner of the urinal 200 is known and thus, the detailed description thereof will be omitted herein.

[40] FIG. 6 illustrates a rainwater collecting device 120 installed at a roof 110 of the portable rest room according to the present invention. The rainwater collecting device 120 can be utilized as an auxiliary wash water storing means for use in specific areas, in particular, in areas having a great amount of rainfall.

[41] In the present invention, the roof 110 is inclined toward the rainwater collecting device 120 so that rainwater falling on the roof 110 can be efficiently collected in the rainwater collecting device 120 within a short amount of time. The roof 110 is formed, at a surface thereof, with corrugated water passages 112. With this corrugated configuration, in spite of the fact that the rainwater tends to stay on the surface of the roof 110 due to a surface tension, the rainwater falling on the roof 110 can be efficiently gathered into the rainwater collecting device 120 by the corrugated water passages 112 as well as the inclination of the roof 110. [42] The rainwater collecting device 120, as shown in FIG. 6, is covered with a dome- shaped cap 122. The dome-shaped cap 122 is made of an iron net and used to prevent insects and other impurities from entering the rainwater collecting device 120. An opening/closing adjusting plate 124 using a weight 123 and a funnel 126 are disposed in the cap 122. The weight 123 is provided at the center of the opening/closing adjusting plate 124. The opening/closing adjusting plate 124 is normally kept in a closed state because it keeps the balance between left and right portions thereof under the influence of the weight 123, but is tilted by rainwater introduced into the rainwater collecting device 120 to thereby be opened. The opening/closing adjusting plate 124 serves not only to prevent invasion of insects and other impurities into the rainwater collecting device 120, but also to prevent evaporation of rainwater stored in a rainwater reservoir 130. The funnel 126 is located at a lower end of the opening/closing adjusting plate 124, to maximize the collection of rainwater while minimizing evaporation loss of rainwater.

[43] In the present invention, the tank 2, which is located underneath the rest room 1, is divided into a urine storage region (tl) and a feces storage region (t2) by a partition wall 21. In consideration of characteristics of installation areas, the tank 2 may be an independent private small tank that is designed to be embedded underground as will be described in relation with the first embodiment of the present invention, or a public large tank that is designed to be exposed outward from the ground as will be described in relation with the second embodiment of the present invention shown in FIG. 8.

[44] In the case of the independent private tank 2 according to the first embodiment of the present invention, the partition wall 21 has a ramp 21a, to allow feces, introduced into the tank 2, to be gathered naturally into the rear region of the feces storage region (t2). In the case of a conventional rest room reservoir having a planar bottom structure, feces introduced into the reservoir are accumulated in a pyramid form, and this becomes a factor of deteriorating storage efficiency of the reservoir. Accordingly, it can be said that the tank 2 of the present invention can solve the problem of deterioration in the storage efficiency.

[45] In the case of the public large tank as shown in FIG. 9, it is designed to store feces, which fall from a plurality of toilet bowls arranged in parallel or in series, in a single feces reservoir. The most important difference between the first and second embodiments of the present invention is in that a plurality of portable feces storage vessels 140 are arranged in the tank 2 to correspond to the respective toilet bowls. In this case, the feces storage region (t2) of the tank 2 is installed with rails (r) along a bottom surface thereof and a door (d) provided at a sidewall of the tank 2. With the provision of the rails (r), the portable feces storage vessels 140 can be conveyed out of the tank 2. As a result of constructing the feces storage vessels 140 to be conveyed out of the tank 2, feces stored in the vessels 140 can be easily collected and recycled as they are converted into an organic compost via an anaerobic composting process.

[46] Each of the portable feces storage vessels 140 is provided with handles 142. The provision of the handles 142 has the effect of providing the storage vessel 140 with an inclination, to allow a worker to easily transfer the composted feces.

[47] Meanwhile, urine discharged from the urinal 200 and the toilet bowl 100 is guided into a urine discharge line 104 so that it is discharged into the urine storage region (tl) after passing through the nitrification cartridge 150 shown in FIG. 7 and the de- nitrification cartridge 160 shown in FIG. 8. Both the nitrification cartridge 150 and the de-nitrification cartridge 160 are located in upper and lower positions of the urine storage region (tl) to perform nitrification and de-nitrification of urine introduced into the urine storage region (tl). Now, the nitrification and de-nitrification of urine will be described.

[48] First, the nitrification cartridge 150 shown in FIG. 7 is located in an upper front portion of the urine storage region (tl) and has a drawer structure so as to be taken out of the urine storage region (tl). Accordingly, when a separable stair structure S extended up to the rest room 1 is removed, the nitrification cartridge 150 can be taken out of the tank 2.

[49] The nitrification cartridge 150 has a box shape, which includes a porous sidewall plate 151 for guaranteeing efficient ventilation and a porous top plate 152 designed to be opened. In addition, the nitrification cartridge 150 incorporates a multiple-layered bottom plate 153 disposed in the cartridge 150 and having a gentle inclination of approximately 1 degree. The nitrification cartridge 150 also incorporates baffle plates 154 arranged to define a zigzag pattern. Preferably, the respective baffle plates 154 are individually detachable from the bottom plate 153.

[50] The interior of the nitrification cartridge 150 is charged with a filler 155, which is composed of a variety of materials, such as reed, sawdust, peat, moss, microorganisms secured to a supporter, or the like. To prevent the filler 155 from entering the urine storage region (t2), a filter 156 is provided at a distal end of the nitrification cartridge 150. The filter 156 is made of a non- woven fabric and an iron net.

[51] If urine is continuously introduced into the nitrification cartridge 150, the urine causes a group of nitrification microorganisms, which react with nitrogen components of the filler 155 in the nitrification cartridge 150, to be dominated. In turn, with the dominated nitrification microorganisms, the introduced urine is subjected to a nitrification reaction while passing through the filler 155 in a zigzag path defined between the baffle plates 154 and then, is moved into the de-nitrification cartridge 160.

[52] Meanwhile, the de-nitrification cartridge 160, as shown in FIG. 8, includes a cabinet type cartridge body 162 having a door, and a plurality of cells 164 each having a mesh type or spongy type microorganism supporter. The de-nitrification cartridge 160 is located on a bottom of the urine storage region (t2) without the risk of invasion of outside air, especially, oxygen. The de-nitrification cartridge 160 performs a microorganism de-nitrification process using nitrate nitrogen and nitrite nitrogen contained in the urine from the nitrification cartridge 150. In this case, to increase the de-nitrification efficiency of urine, a carbon supply pipe 180 is connected to an introduction pipe 170 of the de-nitrification cartridge 160 to connect the de-nitrification cartridge 160 to an external carbon source. In the present invention, an upper- layer solution in the feces storage region (t2) is used as the external carbon source for use in the de-nitrification process.

[53] In the drawings, not described reference numeral " 100a" denotes a water tank for the toilet bowl 100. Reference numeral " 190" denotes an urine discharge pipe for directing urine discharged from the urinal 200 and the toilet bowl 100 into the nitrification cartridge 150. Reference numeral "210" denotes a discharge pipe for discharging bad smelling gas, such as methane gas, generated in the urine storage region (tl) and the feces storage region (t2) to the outside. Reference numeral "220" denotes an opening/closing valve installed in a wash water supply pipe connected to an external water source. Reference numeral "230" denotes a compost discharge hole formed at a rear upper position of the feces storage region (t2). And, reference numeral "240" denotes an input hole provided at the urine storage region (tl).

[54]

Industrial Applicability

[55] As apparent from the above description, the present invention provides a non- powered multipurpose portable rest room, which is suitable for use in areas having insufficient water supply and sewage facilities and no power supply source, such as for example, military areas, remote mountain villages, developing countries, underdeveloped countries, and so on. The multipurpose portable rest room of the present invention also enables the composting of feces, while preventing pollution, differently from conventional rest rooms that suffer from a difficulty in appropriate treatment of feces and urine stored in the same place. As known, nitrogen and phosphorous components contained in urine may cause serious eutrophication in the river if it is directly discharged into the river without appropriate water treatments. Approximately 87% of nitrogen component and approximately 50% of phosphorous component contained in domestic wastewater are caused by urine and thus, there is a serious requirement for the concentrative treatment of urine. In consideration of this problem, the present invention has an outstanding feature in that feces and urine can be collected and stored in different places from each other, and nitrification and de-nitrification cartridges are used to remove nitrogen compounds in the urine. In particular, the present invention enables the use of natural or artificial materials that are easily acquirable on the installation place of the rest room, thus achieving outstanding place adaptability and consequently, having the role of a water treatment plant. Furthermore, as a result of simplifying the configuration of all facilities included therein while providing each facility with multiple functions, it is possible to simplify the installation and management of the portable rest room according to the present invention even in areas having no water supply and sewage facilities.

[56] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

[1] A multipurpose portable rest room of feces and urine separating type suitable for areas having no sewer, the rest room comprising a rest room in which a toilet bowl and a urinal are provided, and a tank located underneath the rest room for storing feces and urine therein, wherein the toilet bowl comprises a vertical divider mounted in the center thereof for separating feces and urine from each other when a user defecates and/or urinates into the toilet bowl in a sitting posture, so as to allow the feces and the urine to be directed into a feces discharge hole and a urine discharge hole, respectively, wherein the tank is divided into a urine storage region and a feces storage region, and wherein the urine, which is discharged from the urine discharge hole of the toilet bowl and the urinal, is directed into the urine storage region after passing through a nitrification cartridge and a de-nitrification cartridge.

[2] The multipurpose portable rest room according to claim 1, wherein the toilet bowl further comprises an upper lid, a lower closer plate located over the feces discharge hole of the toilet bowl, and a link connecting the upper lid and the lower closer plate to each other, wherein, if the user lifts the upper lid of the toilet bowl, the lower closer plate is simultaneously operated by the link to open the feces discharge hole and conversely, if the user lowers the upper lid after stool, the lower closer plate is operated by the link to close the feces discharge hole.

[3] The multipurpose portable rest room according to claim 1, wherein the nitrification cartridge is located in an upper front position of the urine storage region and has a box shape so as to be taken out of the urine storage region in a drawer manner, and wherein the nitrification cartridge comprises: a porous sidewall plate designed to be opened; a porous top plate designed to be opened; a multiple-layered bottom plate disposed in the cartridge and having a gentle inclination; baffle plates arranged on the bottom plate to define a zigzag pattern; a filler charged in an interior space of the cartridge and including at least one of reed, sawdust, peat, moss, or microorganisms secured to supporters; and a filter made of a non- woven fabric and an iron net.

[4] The multipurpose portable rest room according to claim 1, wherein the de-nitrification cartridge comprises: a cabinet type cartridge body; and a plurality of cells inserted in the body and each having a mesh type or spongy type microorganism supporter, and wherein the de-nitrification cartridge is configured to block introduction of outside air including oxygen thereinto, and performs a microorganism de- nitrification process using nitrate nitrogen and nitrite nitrogen contained in the urine directed from the nitrification cartridge, a carbon supply pipe being connected to the de-nitrification cartridge for the connection of an external carbon source.

[5] The multipurpose portable rest room according to claim 1, further comprising: a rainwater collecting device installed at a roof of the rest room and adapted to collect water required to wash the urinal and the urine region of the toilet bowl.

[6] The multipurpose portable rest room according to claim 5, wherein the rainwater collecting device is located above a rainwater reservoir that is installed at an outer wall surface of the rest room, and wherein the rainwater collecting device comprises: a dome-shaped cap made of an iron net and used to prevent impurities from entering the rainwater collecting device; an opening/closing adjusting plate located in a lower portion of the cap and adapted to be opened only when rainwater is introduced into the rainwater collecting device by operation of a weight provided at the center thereof; and a funnel to which the opening/closing adjusting plate is coupled in a pivotally rotatable manner.

[7] The multipurpose portable rest room according to claim 1, wherein the urine storage region and the feces storage region of the tank are independently divided from each other by a partition wall provided at the center of the tank, and the partition wall has a ramp, to allow feces, introduced into the tank, to be gathered into the rear region of the feces storage region.

[8] The multipurpose portable rest room according to claim 1, wherein the feces storage region of the tank includes a door provided at a sidewall of the tank and rails provided along a bottom surface and the door of the tank, and a portable feces storage vessel is installed on the rails so as to be conveyed out of the tank.

[9] The multipurpose portable rest room according to claim 8, wherein the portable feces storage vessel has handles for tilting the storage vessel.

[10] The multipurpose portable rest room according to claim 1, wherein the rest room is constructed by wall members, which are assembled to one another in a snap-fitting manner.