An environmental protection treatment system suitable for non-outflow of toilet fecal sewage

Abstract

The present invention relates to the field of toilets and discloses an environmental protection treatment system suitable for non-outflow of toilet fecal sewage, which includes a fecal sewage purification system. The fecal sewage purification system includes a mixing collection and regulation tank, a crushing pump, a suction pump, a sewage tank, a flocculation reaction device, and a solid-liquid separation device that are sequentially connected to the toilet sewage outlet. The solid-liquid separation device is provided with a solid discharge port and a medium water outlet. The medium water outlet is sequentially connected to a filter and a medium water tank. The medium water tank is connected to the toilet through a reflux pipe for reflux flushing, forming a circulating system. The solid discharge port is sequentially connected to a solid collection tank and a sludge dryer. The flocculation reaction device and the medium water tank are respectively connected with a disinfection device. Ultraviolet disinfection devices are provided on both the medium water tank and the solid-liquid separation device. In summary, the present invention purifies and utilizes the flushing water and fecal sewage without external discharge and recycles them. In case of public health hazards, it has an epidemic prevention function and provides people with a convenient, safe, clean and comfortable toilet environment.

Description

Technical Field

[0001] The invention relates to the field of toilets, and in particular to an integrated toilet treatment system suitable for sanitation and epidemic prevention and without external discharge of feces and sewage. Background Art

[0002] At present, flush toilets and centralized treatment cause a large amount of water resource waste. At the same time, there is the possibility of infectious diseases in toilet feces and sewage. At the same time, there are pathogens in the feces of infectious patients. After being discharged from the body, they cause contact with the environment, water sources, and air aerosols to infect others, becoming one of the ways of spreading many infectious diseases. At present, there are roughly three ways to clean feces in public toilets: the first is the most primitive dry toilet and cesspool structure, which is completely dependent on manual digging, causing serious environmental pollution and high labor intensity for excrement workers; the second is the flush toilet plus septic tank structure. This kind of feces mixed with water is sucked into a special vehicle by a vacuum pump, with a large transportation volume, and the subsequent unsupervised whereabouts are unknown, and most of it is dumped back into the city sewer, causing many potential risks to public environmental sanitation; the third is that flush toilets directly flow into the city's sewer facilities, increasing the pressure on subsequent sewage treatment plants, and there is also the risk of polluting environmental sanitation and causing virus transmission along the way. Therefore, the redesign and improvement of the toilet body and toilet can effectively improve environmental sanitation and energy problems. Summary of the invention

[0003] The purpose of the present invention is to solve the problems of serious environmental pollution, high cleaning labor intensity and waste of resources in the current toilet feces treatment process, and to provide an integrated toilet treatment system for feces and sewage for sanitation and epidemic prevention, and at the same time, it can also be used to simply transform existing public toilets. The system purifies and utilizes flushing water and feces and sewage without discharging them, and recycles them. When public health dangers occur, it has an epidemic prevention effect and provides people with a convenient, safe, clean and comfortable toilet environment.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention discloses an environmental protection treatment system suitable for toilet feces and sewage that are not discharged externally, which includes a feces and sewage purification system. The feces and sewage purification system includes: a mixing collection regulating tank, a crushing pump, a suction pump, a sewage tank, a flocculation reaction device and a solid-liquid separation device, which are sequentially connected to the toilet sewage outlet through a pipeline. The solid-liquid separation device is provided with a solid discharge port and a medium water port; the medium water port is sequentially connected to a filter and a medium water tank through a pipeline; the medium water tank is connected to the toilet through a reflux pipe for reflux flushing, forming a circulation system; the solid discharge port is sequentially connected to a solid collection tank and a sludge dryer.

[0006] The flocculation reaction device and the intermediate water tank are respectively connected with a disinfection device; ultraviolet disinfection devices are arranged on both the intermediate water tank and the solid-liquid separation device.

[0007] Further, a tube chain conveyor is arranged in the solid collection tank. The tube chain conveyor is provided with a discharge port, a chain, a motor and a plurality of scraping plates. The chain is connected with the plurality of scraping plates, and the motor is connected with the chain to drive the scraping plates to move in a cycle; the discharge port is connected with the feed inlet of the sludge dryer.

[0008] Further, the fecal sewage purification system further includes a purification and disinfection tower. A dust removal and purification tower is arranged in the sludge dryer, and an exhaust port is arranged on the dust removal and purification tower. The exhaust port is connected with the purification and disinfection tower.

[0009] Further, a drain port for discharging condensed water is arranged on the sludge dryer; the drain port is connected with the solid-liquid separation device through a pipeline.

[0010] Further, the sludge dryer is a heat pump type dryer, and the solid-liquid separation device is a stacked screw extrusion dehydrator.

[0011] Further, the suction pump is a self-priming centrifugal pump with an open impeller, and the crushing pump is a grille crusher with a positive and reverse rotation protection function. The suction pump and the crushing pump are hermetically connected to form an integral body.

[0012] Further, the flocculation reaction device includes a chemical feeder, a reaction tank and a thickening tank. The chemical feeder is pumped into the reaction tank, and a communication hole is arranged at the bottom of the reaction tank and is connected with the thickening tank. The thickening tank is provided with an overflow port and is connected with the feed end of the solid-liquid separation device. A high-speed flocculation stirrer is arranged in the reaction tank, and a low-speed flocculation stirrer is arranged in the thickening tank; the sewage tank is connected with the reaction tank through a pipeline and an overflow pipeline respectively.

[0013] Further, the disinfection device is provided with a disinfectant, an induction switch and a material shortage alarm; the disinfectant is chlorine dioxide.

[0014] Further, an ozone disinfection system is further included. The ozone disinfection system includes an ozone generator, an ozone water mixing tower, a high-pressure flushing machine and an ozone disinfection pipeline. The ozone generator is communicated with the ozone water mixing tower, the ozone disinfection pipeline and the intermediate water tank respectively through a disinfection pipe. The ozone water mixing tower is provided with a water inlet connected with tap water, an air inlet connected with the ozone generator and a drain outlet connected with the high-pressure flushing machine. The water inlet of the ozone water mixing tower is located above the air inlet. The ozone disinfection pipeline is connected with an ozone disinfection port above the separate toilet.

[0015] Further, it also includes an air conditioning fresh air system; the air conditioning fresh air system includes a central air conditioner, an air purifier, and an indoor air outlet that are connected in sequence. The air inlet of the central air conditioner is connected to the outside air, and the indoor air outlet is arranged above the toilet, equipment room, or management room. The toilet, equipment room, or management room is connected to the central air conditioner through an indoor return air duct to form an air circulation, or can also be directly discharged for treatment.

[0016] Further, it also includes a toilet air purification system. The toilet air purification system includes a negative pressure exhaust sanitary ware, an exhaust fan, a disinfector, and an air mixing tower that are connected in sequence. An air collection cavity is arranged inside the negative pressure sanitary ware, and the air collection cavity is connected to the exhaust fan; an air inlet connected to an ozone generator and a fresh air outlet connected to the toilet are arranged at the bottom of the air mixing tower; thus forming an air purification cycle.

[0017] Further, it also includes an ultraviolet disinfection device; the ultraviolet disinfection device includes an ultraviolet lamp and a human body induction switch module; the ultraviolet lamp is electrically connected to the human body induction switch module through a circuit; the ultraviolet lamp is installed on the left and right sides of the top of each toilet compartment, and the human body induction switch module is installed on the top of each toilet compartment.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. Through the fecal sewage purification system of the present invention, solid-liquid separation of fecal sewage is carried out on-site, harmless treatment and resource recycling of fecal sewage are implemented, so that the flushing water can be recycled. It effectively improves the environmental hygiene and energy problems, and greatly reduces the risk of fecal pollution of environmental hygiene and virus transmission.

[0020] 2. The present invention also sets up an ozone disinfection system, an air conditioning fresh air system, a toilet air purification system, and an ultraviolet disinfection device to further purify and disinfect the air in the toilet, providing a convenient, safe, clean, and comfortable toilet environment for people.

[0021] 3. The present invention re-designs and improves the toilet body and the toilet bowl, uses negative pressure sanitary ware, and an air collection cavity is arranged inside it, so that gas pollution can be centrally collected and disinfected at the source. Description of the Drawings

[0022] Figure 1 is the overall layout diagram of the present invention.

[0023] Figure 2 is the flow chart of the fecal sewage purification system of the present invention.

[0024] Figure 3 is the flow chart of the ozone disinfection system of the present invention.

[0025] Figure 4It is the flow chart of the fresh air system of the air conditioner of the present invention.

[0026] Figure 5 It is the toilet air purification system of the present invention. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] As Figures 1-5 shown, the present invention discloses an environmental protection treatment system applicable to non-outflow of toilet fecal sewage, which includes a fecal sewage purification system, an ozone disinfection system, an air conditioner fresh air system, a toilet air purification system, an ultraviolet disinfection device and a toilet body. The present invention can be directly applied to newly built toilets or can be used alone for the transformation of existing public toilets.

[0029] 1. Fecal sewage purification system

[0030] The fecal sewage purification system includes: a mixing collection and regulation tank, a crushing pump, a suction pump, a sewage tank, a flocculation reaction device and a solid-liquid separation device that are sequentially connected through pipelines to the toilet sewage outlet. The flocculation reaction device includes a medicine soaking machine, a reaction tank and a concentration tank that are sequentially connected. The solid-liquid separation device is provided with a solid discharge port and a medium water outlet. The medium water outlet is sequentially connected to a filter and a medium water tank through pipelines; the medium water tank is connected to the toilet through a return pipe for return flushing, forming a circulating system; the solid discharge port is sequentially connected to a solid collection tank and a sludge dryer. The flocculation reaction device and the medium water tank are respectively connected with a disinfection device; ultraviolet disinfection devices are arranged on both the medium water tank and the solid-liquid separation device. A dust removal and purification tower is arranged in the sludge dryer, an exhaust port is arranged on the dust removal and purification tower, and the exhaust port is connected to a purification and disinfection tower. A drain port for discharging condensed water is arranged on the sludge dryer; the drain port is connected to the solid-liquid separation device through a pipeline. The disinfection device is provided with a disinfectant, an induction switch and a material shortage alarm

[0031] In this embodiment, the disinfectant is preferably chlorine dioxide. The suction pump is a self-priming centrifugal pump with an open impeller, and the crushing pump is a grid crusher with a positive and negative rotation protection function. The suction pump and the crushing pump are hermetically connected to form an integral body. The sludge dryer is a heat pump type dryer, and the solid-liquid separation device is a stacked spiral extrusion dehydrator.

[0032] Working process and principle:

[0033] The toilet sewage outlet discharges feces into the mixed collection and regulation tank. Through the action of the suction pump, the fecal sewage is sucked from the mixed collection and regulation tank to the crushing pump for crushing treatment. The crushed fecal sewage passes through the pipeline connected to the suction pump and is transported to the sewage tank. The front end of the sewage tank is provided with a fecal sewage inlet pipe, and the rear end is provided with a fecal sewage outlet pipe and a sediment outlet. A ball valve switch is installed at the sediment outlet to control the discharge. The fecal sewage in the sewage tank is transported to the reaction tank. At the same time, the chemical dosing machine starts to automatically add medicine to the reaction tank for flocculation reaction. An electric motor is installed on the upper part of the reaction tank, and a flocculation agitator is installed inside. A slow-speed stirring concentrator with the same structure is arranged in the concentrator tank. A communication hole is arranged at the bottom of the reaction tank to communicate with the concentrator tank. The concentrator tank is provided with an overflow port connected to the feeding end of the solid-liquid separation equipment. The solid-liquid separation equipment is provided with a solid discharge end and a reclaimed water discharge end. The solid-liquid separation equipment physically squeezes the flocculated substances for solid-liquid separation. The solid discharge end discharges solid fecal sludge with a moisture content ≤ 80% onto the solid collection tank. A tube chain conveyor is arranged under the solid collection tank. The tube chain conveyor is provided with an electric motor, a chain, a discharge port and several scraper plates. The chain is connected to several scraper plates, and the electric motor is connected to the chain to drive the scraper plates to move in a cycle. Through the operation of the tube chain conveyor, the chain scraper plates scrape the solid fecal sludge and transport it into the sludge dryer. The silo is hermetically connected to the discharge port of the tube chain conveyor. After the solid fecal sludge is dried in the sludge dryer into carbon-like ashes with a moisture content ≤ 20%, it is bagged and transported to the organic fertilizer factory for resource recycling. A drain port for discharging condensed water is arranged on the sludge dryer. The condensed water generated by drying is transported back into the solid-liquid separation equipment through the drain port. A dust removal and purification tower is arranged inside the sludge dryer. An exhaust port is arranged on the dust removal and purification tower, and the exhaust port is connected to the purification and disinfection tower. The gas generated by drying enters the purification and disinfection tower for purification and safe discharge. The reclaimed water discharged from the solid-liquid separation device is transported through a pipeline to a filter for impurity filtration and then stored in a reclaimed water tank. An ultraviolet disinfection device is arranged above the reclaimed water tank in the reclaimed water tank. A disinfectant addition port is also arranged on the upper part of the reclaimed water tank to disinfect and sterilize the reclaimed water in the reclaimed water tank. After disinfection and sterilization, it is flushed through the return pipe for toilet use or safely discharged, realizing a set of ecological treatment systems for on-site purification and recycling of toilet sewage.

[0034] 2. Ozone disinfection system

[0035] The ozone disinfection system includes an ozone generator, an ozone water mixing tower, a high-pressure washer and ozone disinfection pipelines. The ozone generator is respectively connected to the ozone water mixing tower, the ozone disinfection pipelines and the reclaimed water tank through disinfection pipes. The ozone water mixing tower is provided with a water inlet connected to tap water, an air inlet connected to the ozone generator and a drain outlet connected to the high-pressure washer. The water inlet of the ozone water mixing tower is located above the air inlet. The ozone disinfection pipelines are connected to the ozone disinfection ports above the separate toilet compartments.

[0036] Working process and principle:

[0037] The ozone generator generates ozone that enters the ozone water mixing tower, ozone disinfection pipeline, and grey water tank; the ozone water mixing tower uses a water inlet at the top and an air inlet at the bottom to make the mixing more thorough. The ozone water mixing tower drain outlet is connected to the high-pressure flushing machine through the ozone water pipe to flush the toilet via the high-pressure water pipe. The ozone disinfection pipeline is connected to the ozone disinfection port above the separate toilet room in the toilet. The ozone disinfection system can be controlled by the control system and manually controlled by the management personnel.

[0038] During the flushing operation, open the water inlet valve of the ozone water mixing tower and the ozone generator flushing operation switch in sequence, and then turn on the high-pressure flushing machine to start the operation. When shutting down, turn off the ozone generator first, and then close other valves. During the ozone air disinfection operation, make sure that no one is in the toilet, then close the toilet, turn on the ozone generator air disinfection switch, and the ozone enters the toilet through the ozone disinfection pipeline for disinfection. Each disinfection lasts for one hour, twice a week, and the corresponding switch is turned off after the operation. People can enter after a half-hour to one-hour interval.

[0039] 3. Air conditioning fresh air system

[0040] The air conditioning fresh air system includes a central air conditioner, an air purifier and an indoor air outlet which are connected in sequence. The air inlet of the central air conditioner is connected to the outside air, and the indoor air outlet is arranged above the toilet, equipment room or management room. The toilet, equipment room or management room is connected to the central air conditioner through the indoor return air duct to form an air circulation, and can also be directly discharged for external treatment.

[0041] 4. Bathroom air purification system

[0042] The toilet air purification system comprises a negative pressure exhaust sanitary ware, an exhaust fan, a sterilizer and an air mixing tower which are connected in sequence. An air collecting cavity is provided inside the negative pressure sanitary ware, and the air collecting cavity is connected to the exhaust fan; an air inlet connected to the ozone generator and a fresh air outlet connected to the toilet are provided at the bottom of the air mixing tower; an air purification cycle is formed.

[0043] The exhaust fan extracts the odor in the air collecting chamber through the air collecting pipe, and the odor is collected and transmitted to the disinfector for disinfection. The disinfected odor enters the air mixing tower; the ozone generated by the ozone generator enters the air mixing tower from the bottom of the air mixing tower, mixes with the odor, and is purified before being safely discharged from the fresh air outlet.

[0044] 5. Ultraviolet disinfection device

[0045] The ultraviolet disinfection device includes an ultraviolet lamp and a human body sensing switch module. The ultraviolet lamp is electrically connected to the human body sensing switch module through a line. The ultraviolet lamp is installed on the left and right sides of the top of each toilet room, and the human body sensing switch module is installed on the top of each toilet room. The human body sensing switch module automatically turns off when it senses that someone is using the toilet, otherwise it automatically turns on.

[0046] In summary, the present invention can purify and utilize flushing water and fecal sewage without external discharge and recycle it. In case of public health hazards, it has an epidemic prevention function and provides people with a convenient, safe, clean and comfortable toilet environment.

[0047] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An environmental protection treatment system applicable to non-outflow of toilet fecal sewage, characterized in that: it includes a fecal sewage purification system; the fecal sewage purification system includes: a mixing collection and regulation tank, a crushing pump, a suction pump, a sewage tank, a flocculation reaction device and a solid-liquid separation device that are sequentially connected to the toilet sewage outlet through pipelines; the solid-liquid separation device is provided with a solid discharge port and a medium water outlet; the medium water outlet is sequentially connected to a filter and a medium water tank through pipelines; the medium water tank is connected to the toilet through a return pipe for return flushing, forming a circulation system; the solid discharge port is sequentially connected to a solid collection tank and a sludge dryer; the flocculation reaction device and the medium water tank are respectively connected with a disinfection device; ultraviolet disinfection devices are arranged on both the medium water tank and the solid-liquid separation device; it also includes an air-conditioning fresh air system; the air-conditioning fresh air system includes a central air-conditioning, an air purifier and an indoor air outlet that are sequentially connected; the air inlet of the central air-conditioning is communicated with the outside air, and the indoor air outlet is arranged above the toilet, the equipment room or the management room; the toilet, the equipment room or the management room is communicated with the central air-conditioning through an indoor return air pipe, forming an air circulation or directly discharging to the outside through communication with the outside; it also includes a toilet air purification system, and the toilet air purification system includes a negative pressure exhaust type sanitary ware, an exhaust fan, a disinfector and an air mixing tower that are sequentially connected; a gas collection cavity is arranged inside the negative pressure type sanitary ware, and the gas collection cavity is connected to the exhaust fan; the bottom of the air mixing tower is provided with an air inlet connected to an ozone generator and a fresh air discharge outlet connected to the toilet; forming an air purification cycle.

2. The environmental protection treatment system applicable to non-outflow of toilet fecal sewage according to claim 1, characterized in that: a tube chain machine is arranged under the solid collection tank; the tube chain machine is provided with a discharge port, a chain, a motor and a plurality of scraping plates, the chain is connected with the plurality of scraping plates, and the motor is connected with the chain to drive the scraping plates to move in a cycle; the discharge port is connected to the feed port of the sludge drying machine.

3. The environmental protection treatment system applicable to non-outflow of toilet fecal sewage according to claim 2, characterized in that: the fecal sewage purification system also includes a purification and disinfection tower; a dust removal and purification tower is arranged inside the sludge dryer, an exhaust port is arranged on the dust removal and purification tower, and the exhaust port is connected to the purification and disinfection tower.

4. The environmental protection treatment system applicable to non-outflow of toilet fecal sewage according to claim 2, characterized in that: a drain port for discharging condensed water is arranged on the sludge dryer; the drain port is connected to the solid-liquid separation device through a pipeline.

5. The environmental protection treatment system applicable to non-outflow of toilet fecal sewage according to claim 1, characterized in that: the sludge dryer is a heat pump type dryer, and the solid-liquid separation device is a stacked spiral extrusion dehydrator.

6. The environmental protection treatment system applicable to non-outflow of toilet fecal sewage according to claim 1, characterized in that: the suction pump is a self-priming centrifugal pump with an open impeller, and the crushing pump is a grille crusher with a positive and negative rotation protection function; the suction pump and the crushing pump are hermetically connected to form an integral body.

7. The environmental protection treatment system applicable to non-outflow of toilet fecal sewage according to claim 1, characterized in that: The flocculation reaction device includes a chemical feeder, a reaction tank, and a thickening tank; the chemical feeder is transported to the reaction tank by a pump, and a communication hole is provided at the bottom of the reaction tank and connected to the thickening tank; an overflow port is provided in the thickening tank and connected to the feed end of the solid-liquid separation device; a high-speed flocculation agitator is arranged in the reaction tank, and a low-speed flocculation agitator is arranged in the thickening tank; the sewage tank is connected to the reaction tank through a pipeline and an overflow pipeline respectively.

8. The environmental protection treatment system applicable to non-discharge of toilet feces and sewage according to claim 1, characterized in that: the disinfection device is provided with a disinfectant, an induction switch, and a material shortage alarm; the disinfectant is chlorine dioxide.

9. The environmental protection treatment system applicable to non-discharge of toilet feces and sewage according to claim 1, characterized in that: it further includes an ozone disinfection system; the ozone disinfection system includes an ozone generator, an ozone water mixing tower, a high-pressure flushing machine, and an ozone disinfection pipeline; the ozone generator is communicated with the ozone water mixing tower, the ozone disinfection pipeline, and the middle water tank through a disinfection pipe respectively; the ozone water mixing tower is provided with a water inlet connected to tap water, an air inlet connected to the ozone generator, and a drain outlet connected to the high-pressure flushing machine; the water inlet of the ozone water mixing tower is located above the air inlet; the ozone disinfection pipeline is connected to the ozone disinfection port above the individual toilet compartments.

10. The environmental protection treatment system applicable to non-discharge of toilet feces and sewage according to claim 1, characterized in that: it further includes an ultraviolet disinfection device; the ultraviolet disinfection device includes an ultraviolet lamp and a human body induction switch module; the ultraviolet lamp is electrically connected to the human body induction switch module through a circuit; the ultraviolet lamp is installed on the left and right sides of the top of each toilet compartment, and the human body induction switch module is installed on the top of each toilet compartment.

Images