CN216472736U - Zero solid waste discharges independent circulation sewage treatment system - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, and provides a zero-solid waste discharge independent circulation sewage treatment system, which comprises: a toilet device and a sewage treatment system which are integrated together; the toilet device is connected with the sewage treatment system through a pipeline; the sewage treatment system is used for treating sewage discharged by the toilet device and returning the treated and purified treated water to the toilet device for flushing a toilet; the sewage treatment system comprises: an active catalytic oxidation tank, a bioreactor tank and a final treatment tank; the active catalytic oxidation tank contains catalytic oxide materials, and organic matters are decomposed by microorganisms in an aeration environment; the bioreactor tank is attached with a filter medium of microorganism and used for performing biological filtration treatment on the treated water; the final treatment tank is used for injecting at least one of ozone treatment and membrane filtration treatment to the filtered water. The utility model can effectively purify sewage and flush toilets with treated water.

Description

Zero solid waste discharges independent circulation sewage treatment system

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an independent circulating sewage treatment system with zero solid waste discharge.

Background

In areas without plumbing networks, all toilets are dry toilets and there is no way to flush or, even if flushing is possible, there is no way to treat the waste in situ. So that there is no system in the world that can treat feces on site in a cost effective and immediate manner. Unsanitary toileting causes a large number of children to die of mouth-transmitted diseases every year.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems of purification of sewage of local toilets without an upper water pipe network and a lower water pipe network and recycling of treated water, and provides an independent circulating sewage treatment system with zero solid waste discharge.

The utility model provides a zero solid waste discharge independent circulation sewage treatment system, which comprises: a toilet device and a sewage treatment system which are integrated together;

a plurality of toilets are arranged in the toilet device; the toilet device is connected with the sewage treatment system through a pipeline;

the sewage treatment system is used for treating sewage discharged by the toilet device and returning the treated and purified treated water to the toilet device for flushing a toilet;

the sewage treatment system comprises: an active catalytic oxidation tank, a bioreactor tank and a final treatment tank; the installation number of the active catalytic oxidation tank and the bioreactor tank is at least one;

the active catalytic oxidation tank contains catalytic oxide materials, and organic matters are decomposed by microorganisms in an aeration environment;

the bioreactor tank is attached with a filter medium of microorganism and used for performing biological filtration treatment on the treated water;

the final treatment tank is communicated with an ozone supply device and/or is provided with a membrane filtering device, and at least one of ozone injection treatment and membrane filtering treatment is carried out on the filtered water.

Preferably, the toilet apparatus and the sewage treatment system are containerized together by a container.

Preferably, the toilet device divides a plurality of toilets;

one or more toilets are arranged in each toilet.

Preferably, a machine room is disposed in the container;

the sewage treatment system is arranged in the mechanical chamber.

Preferably, the input pipelines of the toilet device and the sewage treatment system are provided with a first two-way valve;

a second two-way valve is arranged on the pipeline of the toilet device and the public sewer;

the first and second two-way valves are used for switching the sewage discharge path of the toilet device.

Preferably, the sewage treatment system further comprises: an aeration blower and a raw water tank;

the input end of the raw water tank is connected with a pipeline of a toilet device, and the output end of the raw water tank is connected with the active catalytic oxidation tank;

the aeration blower is arranged on the raw water tank and is used for ventilating the raw water tank.

Preferably, an activated carbon tank is disposed between the bioreactor tank and the final treatment tank.

Preferably, the ozone supply device adopts an ultraviolet ozone generator, and the ultraviolet ozone generator is arranged on the final treatment tank.

Preferably, the final treatment tank is connected with a water return pipeline of the toilet device, a pressure pump is arranged between the final treatment tank and the toilet device, and water is returned to the toilet device through the pressure pump.

The utility model provides a zero solid waste discharge independent circulation sewage treatment system, which comprises a toilet device and a sewage treatment system, wherein the toilet device and the sewage treatment system form a completely independent circulation type toilet treatment system, and treated and purified treated water is recycled for a flush toilet. An active catalytic oxidation tank of the sewage treatment system contains a catalytic oxide material, and organic matters are decomposed by microorganisms in an aeration environment; the bioreactor tank is used for carrying out biological filtration treatment on the treated water by the filter medium attached with microorganisms; the final treatment tank is used for carrying out at least one of the following treatments on the filtered water: ozone gas is injected, and membrane filtration treatment is performed using a precision or ultrafiltration membrane. The water used for flushing the toilet of the present invention is subjected to various treatments including microbiological treatment to obtain clean water, and the toilet is flushed with the treated water. Such a sewage treatment system can highly treat the water to be treated in the purification tank to pass through the decomposition zone filled with the biomass bacterial bed to remove organic matters in the water to be treated. Finally obtaining highly treated water for reuse as toilet flushing water. The utility model can treat the excrement in situ in time with high cost performance to change the excrement into high-cleanness reclaimed water for flushing a toilet, and can flush the toilet even in a dry desert. And the method is environment-friendly and has no solid waste discharge. Kill mosquitoes and flies and prevent diseases caused by the spread of feces.

Drawings

FIG. 1 is a schematic structural diagram of a zero solid waste discharge independent circulation sewage treatment system provided by the present invention;

FIG. 2 is a process flow diagram of the zero solid waste discharge independent circulation sewage treatment system provided by the present invention.

Reference numerals: 1. a toilet device; 2. a container; 3. a toilet bowl; 4. a sewage treatment system; 9. a public sewer; 21. a container front wall; 21a, an inlet and an outlet; 22. a container rear wall; 22a, a rear area access opening; 25. a toilet; 26. a sewage treatment equipment installation area; 42. a raw water tank; 42a, a raw water tank pump; 43. a first active catalytic oxidation tank; 43a, a first catalytic oxidation material; 44. a second active catalytic oxidation tank; 44a, a second catalytic oxidation material; 44b, a catalytic oxidation tank pump; 45. a first biological reaction tank; 45a, a first filter media; 45b, a first biological reaction tank pump; 46. a second biological reaction tank; 46a, a second filter media; 46b, a second biological reaction tank pump; 47. an activated carbon tank; 47a, activated carbon; 47b, an activated carbon tank pump; 48. a final treatment tank; 48a, a filter membrane; 49. an ultraviolet ozone generator; 50. a pressure pump; 61. a main drain pipe; 62. an introducing pipe; 62a, a first two-way valve; 63. a drain pipe; 63a, a second two-way valve; 64a, a longitudinal pipe section of a discharge drain pipe; 64b, a transverse pipe section of a discharge drain pipe; 65. a water supply pipe; 65a, a third two-way valve; 66. a water feeding pipe; 7. a generator; 71. a first delivery pipe; 72. a first branch; 73. a second branch; 72a, an eighth two-way valve; 73a, a ninth two-way valve; 74. a second drain pipe; 74a, a tenth two-way valve; 75. a third drain pipe; 75a, an eleventh two-way valve; 76. a confluence pipe; 81. a fourth delivery pipe; 81a, a fourth two-way valve; 82. a fifth delivery pipe; 82a, a fifth two-way valve; 85. a discharge pipe; 86. a return pipe; 86a, a sixth two-way valve; 86b, a seventh two-way valve; 91. a circulation route; 92. a discharge route; 93. a first water supply route; 94. a second water supply route; 95. merging the routes; 96. a water supply line; 97. a reflux route.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.

As shown in fig. 1-2, the zero solid waste discharge independent circulation sewage treatment system provided by the embodiment of the present invention includes: a toilet apparatus 1 and a sewage treatment system 4 which are integrated together.

The toilet apparatus 1 and the sewage treatment system 4 are integrated by a container 2. The present embodiment is described by taking the container integration form as an example, but not limited to the container, the toilet device 1 may be a general house type toilet, and the sewage treatment system 4 may be integrated and deeply buried in the ground to form an independent circulation toilet fixed in a certain place.

The toilet apparatus 1 and the sewage treatment system 4 are specifically installed at both ends of the container 2. The container 2 is a one-way long rectangle in plan view. The lateral direction (lower side in fig. 1) of the container 2 in fig. 1 is the front side, and the other side (upper side in fig. 1) opposite to one side is the rear side. The longitudinal direction (horizontal direction in fig. 1) of the container 2 in fig. 1 is a horizontal direction in a plan view.

A plurality of toilets 3 are arranged in the toilet device 1; the toilet device 1 is connected with the sewage treatment system 4 through a pipeline. The toilet apparatus 1 divides a plurality of toilets 25 and a sewage treatment facility installation area 26. A plurality of toilets 25 are arranged from left to right in the front left region of the container 2. In the present embodiment, the toilet 25 is provided in four. The front wall 21 of the container 2 is provided with four entrances and exits 21a corresponding to the four toilets 25. One toilet 3 is provided in each toilet 25, the toilet 3 not being limited to toilets, urinals, squats, etc. and other forms of flushing toilets.

A machine room 26 is arranged in the container 2; the sewage treatment system 4 is disposed in the machine room 26. In particular, the machine room 26 is composed of a right-hand region and a left-hand rear region of the container 2. The sewage treatment system 4 is located mainly in the right area of the container 2. The machine room 26 includes a main drain pipe 61, an inlet pipe 62, an outlet drain pipe 63, a water supply pipe 65, a water supply pipe 66, and the generator 7, in addition to the sewage treatment system 4.

The main drain pipe 61 is used to discharge the waste water of each toilet bowl 3 of the four toilets 25. The main drain pipes 61 are located in the rear area on the left side of the container 2, i.e. in the rear areas of the four toilets 25. The main drain pipe 61 extends in the horizontal direction, and a lead-in pipe 62 and a drain pipe 63 are branched at its right end.

The introduction pipe 62 is used to introduce the sewage of the main drain pipe 61 in the toilet bowl 3 into the sewage treatment system 4, and the other end of the introduction pipe 62 connected to the main drain pipe 61 is connected to the sewage treatment system 4. As shown in fig. 2, a first two-way valve 62a capable of cutting off the connection between the main drain pipe 61 and the sewage treatment system 4 is provided at a side portion of the main drain pipe 61 of the introduction pipe 62.

The drain pipe 63 is used to discharge the sewage of the flush toilet 3 from the main drain port 61 to a sewage system. The drain 63 has two parts, a drain longitudinal pipe section 64a and a drain transverse pipe section 64b, the drain longitudinal pipe section 64a extending longitudinally between the toilet 25 and the sewage treatment system 4 and the drain transverse pipe section 64b extending transversely between the sewage treatment system 4 and the front wall 21 of the container. The rear end of the first portion 64a is connected to the main drain pipe 61. The second portion 64b extends from the front end of the first portion 64a to the right to the outside of the container 2 and is connected to the filter cells of the public sewer 9. As shown in fig. 2, a second two-way valve capable of cutting off the connection between the main drain pipe 61 and the public sewer 9 is provided at a side portion of the main drain pipe 61 of the drain pipe 63.

The water supply pipe 65 is for supplying flush water to each toilet bowl 3 installed in the four toilets 25. The water supply pipe 65 is connected to the sewage treatment system 4. As shown in fig. 2, it is connected to a discharge pipe 85 of the pressure pump 50 described below. The water purified in the sewage treatment system 4 may be supplied to the water supply pipe 65. The water supply pipe 65 is connected to the toilet bowl 3 at the rear area of the four toilets 25, like the main drain pipe 61.

The water feed pipe 66 supplies water to the water supply pipe 65, and is connected to a water inlet pipe 83 of the pressure pump 50 as shown in fig. 2: the water supply pipe 65 supplies the treated water purified by the sewage treatment system 4 and the purified water supplied from the water supply pipe 66 to the toilet 3. As shown in fig. 1, the header 66 extends laterally between the sewage treatment system 4 and the container front wall 21.

As shown in fig. 2, the toilet apparatus 1 has a circulation path 91 and a discharge path 92. The circulation path 91 is a path through which the sewage discharged from the toilet 3 is returned to the toilet 3 through the main drain pipe 61, the introduction pipe 62, the sewage treatment system 4, and the water supply pipe 65. The discharge path 92 is a path for discharging the sewage discharged from the toilet 3 to the public sewage 9 through the main pipe drain pipe 61 and the discharge drain pipe 63.

A first two-way valve 62a is arranged on the input pipelines of the toilet device 1 and the sewage treatment system 4; a second two-way valve 63a is arranged on the pipelines of the toilet device 1 and the public sewer 9; the first and second two- way valves 62a and 63a are used to switch the sewage discharge path of the toilet apparatus 1. By switching the on-off state of the first two-way valve 62a provided in the introduction pipe 62 and the second two-way valve 63a provided in the discharge pipe 63, it is possible to switch between the circulation route 91 and the discharge route 92: opening the first two-way valve 62a and closing the second two-way valve 63a, and the waste water discharged from the toilet bowl 3 flows through the circulation path 91; the first two-way valve 62a opens the second two-way valve 63a and wastewater flows through the discharge path 92. The first and second two- way valves 62a and 63a are path switching valves.

According to this configuration, by switching between the circulation route 91 and the discharge route 92 by the discharge path switching means, it is possible to switch between a state in which the waste water discharged from the flush toilet is again used as the flush water of the flush toilet and a state in which the waste water discharged from the flush toilet is discharged to the outside.

The generators 7 are located in the rear regions of the four toilets 25. The container rear wall 22 is provided with rear area gates 22a of four toilets 25 in the machine room 26. The machine room 26 can be accessed through the rear area doorway 22a, and maintenance of the main drain pipe 61, the water supply pipe 65, and other water pipes, and the generator 7, and other equipment, can be performed.

The sewage treatment system 4 according to the present invention treats sewage discharged from the toilet apparatus 1, and returns treated and purified treated water to the toilet apparatus 1 to flush the toilet 3. The sewage treatment system 4 includes: an active catalytic oxidation tank, a bioreactor tank, and a final treatment tank 48; the number of the active catalytic oxidation tank and the bioreactor tank is at least one. In this example, the number of active catalytic oxidation tanks and bioreactor tanks was two.

The sewage treatment system 4 includes: an aeration blower 41, a raw water tank 42, a first active catalytic oxidation tank 43 (first water tank), a second active catalytic oxidation tank 44 (first water tank), a first biological reaction tank 45 (second water tank), a second biological reaction tank 46 (second water tank), an activated carbon tank 47, a final treatment tank 48, an ultraviolet ozone generator 49 and a pressure pump 50. The sewage treatment system 4 is powered by a commercial power supply, and is powered by the generator 7 in the event of a power failure.

The input end of the raw water tank 42 is connected with a pipeline of the toilet device 1, and the output end of the raw water tank 42 is connected with an active catalytic oxidation tank; the aeration blower 41 is provided in the raw water tank 42, and supplies air into the raw water tank 42. The aeration blower 41 is used to send air into the raw water tank 42, the first active catalytic oxidation tank 43, and the second active catalytic oxidation tank 44, as shown in fig. 2. Aeration blowers 41 are located at the rear of the four toilets 25 in the machine room 26.

The introduction pipe 62 is connected to the raw water tank. The sewage discharged from the toilet bowl 3 through the main drain pipe 61 is introduced into the raw water tank through the introduction pipe 62. As shown in fig. 1, the raw water tank 42 is located at the rear of the right side of the container 2. In the raw water tank 42, the sewage containing toilet paper is slurried by aeration stirring. The raw water tank can appropriately control the inflow of sewage. As shown in fig. 2, the slurry-like sewage treated in the raw water tank is transferred to the first active catalytic oxidation tank 43 by the raw water tank pump 42 a.

The active catalytic oxidation tanks (the first active catalytic oxidation tank 43 and the second active catalytic oxidation tank 44), which contain catalytic oxide materials, decompose organic matters by microorganisms in an aerated environment.

The first active catalytic oxidation tank 43 contains a first catalytic oxidation material 43a, and the second active catalytic oxidation tanks 44 both contain a second catalytic oxidation material 44a for microbial treatment of organic matter by microorganisms in an aerated environment. The first catalytic oxidation material 43a and the second catalytic oxidation material 44a may be the same or different. The first active catalytic oxidation tank 43 is located at the right side of the raw water tank 42, and the second active catalytic oxidation tank 44 is located at the right side of the first active catalytic oxidation tank 43. Further, a catalytic oxidation tank pump 44b is provided on the right side of the second active catalytic oxidation tank 44, and pumps the treated water out of the second active catalytic oxidation tank 44. The wastewater is treated in the first active catalytic oxidation tank 43 and then sent to the second active catalytic oxidation tank 44.

The first catalytic oxidation material 43a in the first active catalytic oxidation tank 43 and the second catalytic oxidation material 44a in the second active catalytic oxidation tank 44 are bio-ropes made of non-woven fabric, on which bio-films are attached. The slurry-like sewage sent from the raw water tank 42 is decomposed by microorganisms, the first catalytic oxidation material 43a, the second catalytic oxidation material 44a and the aeration in the tank 43 and promotes the decomposition of the sewage flowing from the first active catalytic oxidation tank 43 to the second active catalytic oxidation tank 44. Due to the oscillation action of the catalytic oxide material second active catalytic oxidation tank 44a, the attachment and detachment of the sludge are repeated, and the solid-liquid separability of the sludge is improved. The treated water treated in 44 is sent to the first bioreactor tank 45 or the second bioreactor tank 46 by the catalytic oxidation tank pump 44 b.

The bioreactor tank (the first bioreactor tank 45 and the second bioreactor tank 46) is attached with a filter medium for microorganisms, and performs a biological filtration treatment on the treated water. In the first biological reaction tank 45 and the second biological reaction tank 46, the treated water from the second active catalytic oxidation tank 44 is filtered using the first filter medium 45a and the second filter medium 46a to which microorganisms are attached. The first filter media 45a and the second filter media 46a may be the same or different. As shown in fig. 1, the first biological reaction tank 45 is located in front of the catalytic oxidation tank pump 44b, and the second biological reaction tank 46 is located in front of the second active catalytic oxidation tank 44 and in the left side of the first biological reaction tank 45.

A first filter medium 45a and a second filter medium 46a are contained in both the first bioreactor 45 (second tank) and the second bioreactor 46 (second tank). The first filter media 45a and the second filter media 46a are biochips, such as cedar wood flakes (but not limited to cedar wood chips). The treated water fed to the first bioreactor 45 and the second bioreactor 46 is subjected to microfiltration through the first filter medium 45a and the second filter medium 46 a. The organic sludge captured by the first filter medium 45a and the second filter medium 46a is decomposed into carbon dioxide and water. The biochemical oxygen demand BOD of the treated water after the secondary filtration in the first bioreactor 45 or the second bioreactor 46 is less than 10 mg/L.

As shown in fig. 2, a first transfer pipe 71 connected to the catalytic oxidation tank pump 44b draws the treated water from the second active catalytic oxidation tank 44 and branches into a first branch 72 leading to the first biological reaction tank 45 and a second branch 73 leading to the second biological reaction tank 46. The first branch pipe 72 is provided with an eighth two-way valve 72a capable of cutting off the connection between the second active catalytic oxidation tank 44 and the first biological reaction tank 45. The second branch pipe 73 is provided with a ninth two-way valve 73a capable of cutting off the connection between the second active catalytic oxidation tank 44 and the second biological reaction tank 46.

As shown in FIG. 2, a first bioreactor pump 45b for sending the treated water from the first bioreactor 45 is connected to the second drain pipe 74, and a second bioreactor pump 46b for sending the treated water from the first bioreactor pump 46 is connected to the third drain pipe 75. The second and third drain pipes 74 and 75 are connected to a confluence pipe 76. The confluence pipe 76 is connected to the activated carbon tank 47. The second water discharge pipe 74 is provided with a tenth two-way valve 74a capable of cutting off the connection between the first bioreactor tank 45 and the same. The third drain pipe 75 is provided with an eleventh two-way valve 75a capable of cutting off the connection between the second biological reaction tank 46 and the activated carbon tank 47.

The treated water from the second active catalytic oxidation tank 44 is treated in the first biological reaction tank 45 or the second biological reaction tank 46 by opening one of the eighth two-way valve 72a and the ninth two-way valve 73a and closing the other. The first and second biological reaction tanks 45 and 46 are alternately performed. In other words, by switching the opening and closing of the two-way eighth two-way valve 72a and the ninth two-way valve 73a, the treated water from the second active catalytic oxidation tank 44 can be alternately treated in the first biological reaction tank 45 and the second biological reaction tank 46. Therefore, the sludge can be efficiently decomposed and can be repeatedly supplied. In the present embodiment, the eighth and ninth two- way valves 72a and 73a are opened and closed manually, but may be automatically switched by setting time.

The final treatment tank 48 is communicated with an ozone supply device and/or provided with a membrane filtration device, and at least one of ozone injection treatment and membrane filtration treatment is performed on the filtered water.

An activated carbon tank 47 is provided between the bioreactor tank and the final treatment tank 48. The treated water treated in the first bioreactor tank 45 is transferred to the activated carbon tank 47 by the first bioreactor tank pump 45 b. Similarly, the treated water treated in the second biological reaction tank 46 is sent to the activated carbon tank 47 by the second biological reaction tank pump 46 b. When the microfiltration is performed in the first bioreactor tank 45, the tenth two-way valve 74a is opened and the eleventh two-way valve 75a is closed. When the microfiltration is performed in the second bioreactor tank 46, the tenth two-way valve 74a is closed and the eleventh two-way valve 75a is opened. In the present embodiment, the tenth and eleventh two- way valves 74a and 75a are opened and closed manually, but may be automatically switched by setting time.

The activated carbon tank 47 contains activated carbon 47 a. As shown in fig. 1, an activated carbon tank 47 is located at the front side of the second active catalytic oxidation tank 44 and the left side of the second biological reaction tank 46. The treated water sent to the activated carbon tank 47 has been deodorized and decolored by the high treatment with activated carbon 47 a. The treated water in the activated carbon tank 47 is pumped to a final treatment tank 48 (third water tank) by an activated carbon tank pump 47 b.

The ozone supply device is (but not limited to) an ultraviolet ozone generator 49, and the ultraviolet ozone generator 49 is arranged on the final treatment tank 48. The final treatment tank 48 is connected with a water return pipeline of the toilet device 1, a pressure pump 50 is arranged between the final treatment tank 48 and the toilet device 1, and water is returned to the toilet device 1 through the pressure pump 50.

The final treatment tank 48 includes a filtration membrane 48a, and is injected with ozone generated by an ultraviolet ozone generation device 49. The treated water treated in the final treatment tank 48 is sent to a water supply pipe 65 by a pressurizing pump 50. As shown in fig. 1, the final treatment tank 48 is located in front of the raw water tank 42 and the first active catalytic oxidation tank 43, on the left side of the activated carbon tank 47. A pressure pump 50 is located in front of the raw water tank 42 above the final treatment tank 48. An ultraviolet ozone generator 49 is located on the left side of the final treatment tank 48.

The filtration membrane 48a is a membrane having a pore size of about 0.01 μm, and is an ultrafiltration membrane or a microfiltration membrane. In the final treatment tank 48, a membrane treatment is performed in which the treated water is filtered by a filtration membrane 48a, and viruses and bacteria larger than pores formed in the membrane are removed from the treated water by a membrane separation method. In the final treatment tank 48, ozone gas generated by an ultraviolet ozone generator 49 is injected, and the treated water is sterilized, deodorized, and decolored.

The water entering the biological reaction tank after being subjected to the microbial treatment in the active catalytic oxidation tank can be subjected to at least one of ozone treatment and membrane treatment in the final treatment tank. Therefore, the sewage can be effectively purified. The final treatment tank is subjected to membrane treatment and treated water subjected to membrane treatment is sent to the first water sending route 93 and the second water sending route 94, and a sending path switching means for switching between the first water sending route 93 and the second water sending route 94. According to this configuration, during normal operation, water treated by the membrane in the final treatment tank 48 can be sent out from the first water sending route 93, and when a problem occurs in the filtration membrane, water treated by the membrane in the final treatment tank 48 can be sent out from the second water sending route 94.

Further, the above sewage treatment system is also provided with a merging line 95 connected to the first water supply line 93 and the second water supply line 94. A water supply line 96 for supplying the treated water supplied from the joining line 95 to the toilet bowl, or a return line 97 for directly supplying the treated water from the joining line 95 to the final treatment tank 48 without passing through the toilet bowl, and a water supply/return switching device for switching a water supply path and a water return path. According to this configuration, the treated water sent from the final treatment tank 48 can be supplied to the flushable toilet by switching the supply water return switching device to the supply water line 96. Meanwhile, by switching to the return route 97 using the water supply and return switching means, the treated water sent from the final treatment tank 48 can be returned to the final treatment tank 48 to clean the filtration membrane 48 a.

As shown in FIG. 2, the final treatment tank 48 is connected to a fourth water supply pipe 81 for supplying treated water from the final treatment tank 48 and a fifth water supply pipe 82 for supplying water before membrane treatment from the final treatment tank 48. The fourth water supply pipe 81 and the fifth water supply pipe 82 are connected to a suction pipe 83, and the suction pipe 83 is connected to the water inlet side of the pressure pump 50. The fourth delivery pipe 81 is provided with a fourth two-way valve 81a (water delivery route switching device) for cutting off the connection between the final treatment tank 48 and the intake pipe 83. The fifth delivery pipe 82 is provided with a fifth two-way valve 82a (water delivery route switching device) for cutting off the connection between the final treatment tank 48 and the suction pipe 83.

The discharge pipe 85 connected to the discharge side of the pressurizing pump 50 branches into a return pipe 86 and a water supply pipe 65, and the return pipe 86 is connected to the final treating tank 48. In the return pipe 86, two- way valves 86a and 86b capable of cutting off the connection between the final treating tank 48 and the discharge pipe 85 are provided on the side of the final treating tank 48 and the side of the discharge pipe 85, respectively. A third two-way valve 65a (feed water return switching device) capable of cutting off the connection between the discharge pipe 85 and the toilet bowl 3 is provided on the discharge pipe 85 side of the water supply pipe 65.

The fourth transfer pipe 81 constitutes a first water transfer route 93 for transferring the treated water subjected to the membrane treatment from the final treatment tank 48. The fifth transport pipe 82 constitutes a second water transport path 94 for transporting the pre-membrane treatment water from the final treatment tank 48. The fourth and fifth two- way valves 81a and 82a are transmission path switching means of the present apparatus.

The inlet pipe 83, the pressure pump 50 and the outlet pipe 85 form a merging line 95, which is connected to the first water feed line 93 and the second water feed line 94. The water supply pipe 65 constitutes a water supply path 96, and supplies water from the merged path 95 to the toilet bowl 3. The return pipe 86 constitutes a return path 97 that returns the water from the confluence path 95 to the final treating tank 48 without passing through the toilet bowl 3. The third two-way valve 65a, the sixth two-way valve 86a and the seventh two-way valve 86b are water return switching devices of the present apparatus.

During normal operation, the two-way valve 81a on the fourth outlet pipe 81 and the two-way valve 65a on the supply pipe 65 are open, while the fourth two-way valve 82a on the fifth outlet pipe 82 and the sixth 86a and seventh 86b two-way valve on the return pipe 86 are closed. The orifice of the return pipe 86 is closed. The treated water of the final treatment tank 48 is pumped by the pressure pump 50 and supplied to the toilet bowl 3 through the water supply pipe 65.

When the filtration membrane 48a of the final treatment tank 48 is washed, the cleaning water is present in the final treatment layer 48. The fourth and third two- way valves 81a and 65a of the fourth delivery pipe 81 are closed, while the fifth and sixth two- way valves 82a and 86b of the fifth and return pipes 82 and 86 of the fifth delivery pipe 82 and 86 are opened and the pressure pump 50 is activated. Thus, the treatment water before membrane treatment is pumped out of the final treatment tank 48 by the pressure pump 50 and returned to the final treatment tank 48 through the return pipe 86. Thus, the flow direction of the cleaning water is opposite to the normal membrane treatment direction, and the contaminants deposited on the filtration membrane 48a by the membrane treatment are removed.

When the membrane treatment in the final treatment tank 48 is omitted, for example, when a problem occurs in the filtration membrane 48a, the fifth two-way valve 82a of the fifth water outlet pipe 82 and the third two-way valve 65a of the water supply pipe 65 are opened, and the fourth two-way valve 81a of the fourth water outlet pipe 81 and the sixth two-way valve 86a and the seventh two-way valve 86b of the return pipe 86 are closed. The treated water before membrane treatment is drawn out from the final treatment tank 48 by the pressure pump 50 and supplied to the toilet bowl 3 through the water supply pipe 65.

As described above, in the toilet apparatus 1 of the present embodiment, the sewage treatment system 4 includes the first active catalytic oxidation tank 43 and the second active catalytic oxidation tank 44, wherein the first active catalytic oxidation tank 43 contains the first catalytic oxidation material 43a and the second active catalytic oxidation tank 44 contains the second catalytic oxidation material 44a, and the microorganisms decompose the organic matter under the aeration environment. The first and second biological reaction tanks 45 and 46 are subjected to a filtration process in which the treated water treated with microorganisms is filtered by the first and second filter media 45a and 46a to which the microorganisms are attached. The first and second active catalytic oxidation tanks 43 and 44 are provided together with the first and second biological reaction tanks 45 and 46, and inject ozone gas into the filtered treated water to perform ozone treatment, and the final treatment tank 48 is provided to inject ozone gas into the filtered treated water and filter the treated water using a filter membrane 48 a.

After the microbial treatment in the first active catalytic oxidation tank 43 and the second active catalytic oxidation tank 44, the filtration treatment is performed in the first biological reaction tank 45 or the second biological reaction tank 46. The ozone treatment and the thin film treatment are performed in the final treatment tank 48. Therefore, the sewage can be effectively purified.

The toilet apparatus 1 of the present embodiment is provided with a circulation path 91 through which the waste water discharged from the toilet bowl 3 is returned to the toilet bowl 3 through the waste water treatment apparatus 4; a discharge path 92 through which waste water discharged from the toilet bowl 3 is discharged to the outside, and a first and second two- way valves 62a and 63a switching between the circulation path 91 and the discharge path 92. Therefore, by switching between the circulation line 91 and the discharge line 92 using the first and second two- way valves 62a and 63a, it is possible to switch between a state in which the wastewater discharged from the flush toilet 3 is reused as the washing water of the flush toilet 3 and a state in which the wastewater discharged from the flush toilet 3 is discharged to the outside.

The toilet apparatus 1 of the present embodiment includes a first water supply route 93 which supplies water subjected to membrane treatment from the final treatment tank 48, a second water supply route 94 which supplies water before membrane treatment, and fourth and fifth two- way valves 81a and 82a which switch between the first water supply route 93 and the second water supply route 94. Therefore, during normal operation, the treated water in the final treatment tank 48 is sent out through the first water sending route 93, and if a problem occurs in the filtration membrane 48a, the treated water from the final treatment tank 48 is sent out through the second water sending route 94.

The toilet apparatus 1 of the present embodiment includes a merging route 95, a water supply route 96, and a return route 97. The merging line 95 is connected to the second water supply line 94 and the first water supply line 93, the water supply line 96 supplies water from the merging line 95 to the toilet bowl 3, and the return line 97 returns water from the merging line 95 to the final treatment tank 48 without passing through the toilet bowl 3. The third, sixth, and seventh two- way valves 65a, 86a, and 86b are switched between the water supply line 96 and the water return line 97. Accordingly, the third, sixth, and seventh two- way valves 65a, 86a, and 86b switch the supply of water from the confluence line 95 to the water supply line 96, and the treated water from the final treatment tank 48 may be supplied to the toilet 3. Further, the third, sixth, and seventh two- way valves 65a, 86a, and 86b switch the water from the confluence line 95 to the return line 97. By switching the third, sixth, and seventh two- way valves 65a, 86a, and 86b, the treated water of the final treatment tank 48 can be returned to the final treatment tank 48 to clean the filtration membrane 48 a.

In the above embodiment, the case where the ozone treatment by injecting ozone gas and the membrane treatment by filtration through the filtration membrane 48a are performed in the final treatment tank 48 has been described, but the actual case is not limited thereto. The final treatment tank 48 may be one of the ozone treatment and the membrane treatment, or separate water tanks may be provided for the ozone treatment and the membrane treatment, respectively.

The above embodiment describes the case where the microbial treatment is performed in the first active catalytic oxidation tank 43 and the second active catalytic oxidation tank 44, but the microbial treatment may be performed in only one water tank.

The above embodiment describes the filtration process performed in the first bioreactor tank 45 and the second bioreactor tank 46, but it is possible that the filtration is performed in only one reaction tank.

The case where the activated carbon groove 47 containing the activated carbon 47a is provided is described in the above embodiment, but the activated carbon groove 47 may not be provided.

The above embodiment describes the discharge route 92 through which the waste water discharged from the toilet bowl 3 is discharged to the outside, but the discharge route 92 may not be provided.

In the above embodiment, a first two-way valve 62a on the introduction pipe 62 and a second two-way valve 63a on the discharge drain pipe 63 are switched between the circulation line 91 and the discharge line 92. For example, a three-way valve may be installed at the junction of three water pipes (the main drain pipe 61, the introduction pipe 62, and the discharge drain pipe 63), and the three-way valve may be used to switch between the circulation route 91 and the discharge route 92.

The second water sending route 94 for sending the treated water from the final treating tank 48 before the film treatment occurs is described in the above embodiment, but the second water sending route 94 may be omitted.

In the above embodiment, the fourth delivery pipe 81 is provided with a fourth two-way valve 81a, and the fifth delivery pipe is provided with a fifth two-way valve 82 a. The fourth and fifth two- way valves 81a and 82a switch between the first and second water supply lines 93 and 94, but the actual situation is not limited thereto. For example, a three-way valve may be installed at the connection of the three water pipes (the fourth delivery pipe 81, the fifth delivery pipe 82, and the discharge pipe 83), and the three-way valve may be used to switch between the first water delivery route 93 and the second water delivery route 94.

The function of the return line 97 in the above embodiment is to return the water sent from the merging line 95 connected to the first water supply line 93 and the second water supply line 94 to the final treating tank 48 without passing through the toilet 3, but the return line 97 may not be provided.

In the above embodiment, the third two-way valve 65a in the water supply pipe 65 and the sixth two-way valve 86a and the seventh two-way valve 86b in the return pipe 86 switch the conditions of the water supply line 96 and the return line 97. The actual situation is not limited thereto. For example, a three-way valve installed at a junction of three pipes (the water supply pipe 65, the discharge pipe 85, and the return pipe 86) may be employed instead of the third and seventh two- way valves 65a and 86 b.

The above embodiment describes a box-type toilet device 1, but the present invention is also applicable to a permanently installed circulation toilet system. In addition to the above embodiments, water treatment using ultraviolet ray sterilization may be performed at the same time.

The zero-solid waste discharge independent circulation sewage treatment system comprises a toilet device and a sewage treatment system, and can purify sewage discharged from a flushing type closestool and reuse the water purified by the sewage treatment system for the flushing type closestool. In the active catalytic oxidation tank, microorganisms decompose organic matters in an aeration environment, and the biological reaction tank uses a filter material attached with the microorganisms for filtration. The final treatment tank injects ozone gas into the filtered water for ozone treatment, and filters the water through a precision filtration membrane or an ultrafiltration membrane. The circulation route and the discharge route can be switched. The circulation path returns sewage discharged from the toilet bowl to the toilet bowl through the sewage treatment system, the discharge path discharges the sewage discharged from the toilet bowl to the outside through the path, and the line switching device is used for switching between the circulation path and the discharge path. The first water supply route and the second water supply route can be switched. The first water supply route supplies water after membrane treatment in the third water tank, the second water supply route supplies water before membrane treatment, and the line switching device switches between the first water supply route and the second water supply route. The merging route, the water supply route, and the return route can be switched. The merging route merges the first water supply route and the second water supply route, the water supply route sends the treated water of the merging route to the flush toilet, the return route does not pass through the flush toilet, and the treated water directly returns to the final treatment tank from the merging route. The line switching device switches between the water supply line and the return line.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some or all technical features may be made without departing from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. The utility model provides a zero solid useless independent circulation sewage treatment system that discharges which characterized in that includes: a toilet device (1) and a sewage treatment system (4) which are integrated together;

a plurality of toilets (3) are arranged in the toilet device (1); the toilet device (1) is connected with the sewage treatment system (4) through a pipeline;

the sewage treatment system (4) is used for treating sewage discharged by the toilet device (1) and returning treated and purified treated water into the toilet device (1) for flushing a toilet (3);

the sewage treatment system (4) comprises: an active catalytic oxidation tank, a bioreactor tank, and a finishing tank (48); the installation number of the active catalytic oxidation tank and the bioreactor tank is at least one;

the active catalytic oxidation tank is used for containing catalytic oxide materials and decomposing organic matters through microorganisms in an aeration environment; the catalytic oxide material is made of non-woven fabric;

the bioreactor tank is attached with a filter medium of microorganism and used for performing biological filtration treatment on the treated water; the filter medium adopts cedar wood sheets;

and the final treatment tank (48) is communicated with an ozone supply device and/or is provided with a membrane filtration device, and at least one of ozone injection treatment and membrane filtration treatment is carried out on the filtered water.

2. The zero solid waste discharge independent circulation sewage treatment system of claim 1 wherein said toilet device (1) and sewage treatment system (4) are containerized together by a container (2).

3. The zero solid waste discharge independent circulation sewage treatment system according to claim 1 or 2, wherein said toilet arrangement (1) divides a plurality of toilets (25);

one or more toilets (3) are arranged in each toilet (25).

4. The zero solid waste discharge independent circulation sewage treatment system according to claim 2 wherein said container (2) is provided with a mechanical chamber (26) therein;

the sewage treatment system (4) is arranged in the mechanical chamber (26).

5. The zero solid waste discharge independent circulation sewage treatment system according to claim 1 wherein a first two-way valve (62a) is provided on the input piping of said toilet apparatus (1) and sewage treatment system (4);

a second two-way valve (63a) is arranged on the pipelines of the toilet device (1) and the public sewer (9);

the first two-way valve (62a) and the second two-way valve (63a) are used for switching the sewage discharge path of the toilet device (1).

6. The zero solid waste discharge independent circulation wastewater treatment system according to claim 1 or 5, wherein the wastewater treatment system (4) further comprises: an aeration blower (41) and a raw water tank (42);

the input end of the raw water tank (42) is connected with a pipeline of the toilet device (1), and the output end of the raw water tank (42) is connected with the active catalytic oxidation tank;

the aeration blower (41) is arranged on the raw water tank (42) and aerates the raw water tank (42).

7. The zero solid waste discharge independent circulation sewage treatment system according to claim 1 or 5, wherein an activated carbon tank (47) is provided between said bioreactor tank and final treatment tank (48).

8. The zero solid waste discharge independent circulation sewage treatment system according to claim 7, wherein said ozone supply means employs an ultraviolet ozone generator (49), said ultraviolet ozone generator (49) being disposed on the final treatment tank (48).

9. The zero solid waste discharge independent circulation sewage treatment system according to claim 8, wherein the final treatment tank (48) is connected to a return water pipe of the toilet apparatus (1), and a pressure pump (50) is provided between the final treatment tank (48) and the toilet apparatus (1) and returns water to the toilet apparatus (1) through the pressure pump (50).

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