AU2020100085A4 - Rainwater and domestic water reutilization system - Google Patents

Rainwater and domestic water reutilization system Download PDF

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Publication number
AU2020100085A4
AU2020100085A4 AU2020100085A AU2020100085A AU2020100085A4 AU 2020100085 A4 AU2020100085 A4 AU 2020100085A4 AU 2020100085 A AU2020100085 A AU 2020100085A AU 2020100085 A AU2020100085 A AU 2020100085A AU 2020100085 A4 AU2020100085 A4 AU 2020100085A4
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AU
Australia
Prior art keywords
pool
water
rainwater
sewage
domestic
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Ceased
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AU2020100085A
Inventor
Bo Liu
Liyuan Liu
Hecheng Wang
Xiaocheng WEI
Zhongwei Zhai
Xiangqun Zheng
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Agro Environmental Protection Institute Ministry of Agriculture and Rural Affairs
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Agro Environmental Protection Institute Ministry of Agriculture and Rural Affairs
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Priority to CN201910610127.8A priority Critical patent/CN110409552A/en
Priority to CN2019106101278 priority
Application filed by Agro Environmental Protection Institute Ministry of Agriculture and Rural Affairs filed Critical Agro Environmental Protection Institute Ministry of Agriculture and Rural Affairs
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Publication of AU2020100085A4 publication Critical patent/AU2020100085A4/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/04Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041Greywater supply systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/07Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
    • E03B7/074Arrangement of water treatment devices
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/04Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041Greywater supply systems
    • E03B2001/045Greywater supply systems using household water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/04Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041Greywater supply systems
    • E03B2001/047Greywater supply systems using rainwater

Abstract

NI C) The present invention belongs to the field of environmental protection equipment, relates to the technical field of sewage recycling, and particularly relates to a rainwater and domestic water reutilization system, which comprises a clear water pool, wherein a water inlet end of the clear water pool is communicated with a tap 00 water pipeline; a front end of the clear water pool is also respectively connected with a rainwater recycling and cleaning system and a domestic water recycling and cleaning system; the rainwater recycling and cleaning system comprises water N collection troughs, a rainwater collection pool, a rainwater filtration pool and a Cl rainwater disinfection pool which are mounted in sequence; a water outlet end of the rainwater disinfection pool is communicated with a water inlet end of the clear water pool; the domestic water recycling and cleaning system comprises a sewage collection pool, a sewage sedimentation pool, an artificial wetland, a sewage filtration pool and a sewage disinfection pool which are mounted in sequence; the water outlet end of the sewage disinfection pool is communicated with the water inlet end of the clear water pool; the clear water pool collects treated rainwater and domestic water; municipal water pipes assist and supplement the clear water pool; and the water outlet end of the clear water pool is communicated with water using equipment. 0d Cl . -e

Description

RAINWATER AND DOMESTIC WATER REUTILIZATION SYSTEM
TECHNICAL FIELD [0001] The present invention belongs to the field of environmental protection equipment, relates to the technical field of sewage recycling, and particularly relates to a rainwater and domestic water reutilization system.
BACKGROUD OF THE PRESENT INVENTION [0002] Water is an indispensable resource for human activities. However, the serious shortage of water resources in China makes the economic development in China and the economic, social and scientific and technological development of all countries face a severe test. Therefore, it is urgent to save water. At present, toilet water accounts for more than 40% of the total domestic water in China, so it is necessary to find new sources of the toilet water. Rainwater, as an important natural resource, can be used as flushing water due to low pollution and easy treatment. In addition, rural domestic sewage such as vegetable washing water and laundry water can be used as the flushing water after a certain treatment. However, the rural domestic sewage and a purification treatment technology are not perfect at present, so that the utilization rates of the rural domestic sewage and the rainwater in China are low.
[0003] Therefore, people try to improve the above technical solution. The Chinese patent literature CN205421399U provides a Water Supply Device for Flushing Toilets with Rainwater. The water supply device comprises a water collection trough and a water tank, wherein the top of the water collection trough is opened and matched with a blocking net; a water outlet is formed in the bottom; a water outlet is connected with the water tank through a water delivery pipe; the water tank is provided with a plurality of water supply pipelines and is matched with corresponding valves; and the water collection trough, the blocking net, the water outlet, the water tank, the water supply pipelines and the like can cooperate to collect the rainwater as the flushing water, thereby saving the water resources. The Chinese patent literature CN206971321U provides a Water-saving System for Recycling Domestic Wastewater to Flush Toilets. The system comprises a water storage device, i
2020100085 16 Jan 2020 which comprises a tap water tank, a sewage tank and a control valve, wherein the water storage device is arranged below a washing table and is suitable for wide application in university dorms, thereby achieving the purpose of saving a lot of water resources.
[0004] For the rainwater, rural rainwater mainly comprises three backflow media such as roofs, roads and permeable ground. The roofs and the roads have large runoff coefficients and great rainwater runoff. However, the COD in road rainwater is up to 3000 mg/L according to current rural sanitary situations in China, while the permeable ground is mainly based on permeation and has limited collection volume. Therefore, through comparison of the above three backflow media, roof rainwater is relatively good in water quality, great in runoff and convenient to collect and utilize. As a result, the rural roof rainwater is mainly collected to (lush the toilets in toilet Hushing with the recycled water of the rural rainwater and the domestic sewage. But for the roof rainwater, the initial rainwater scours pollutants such as roof dust, so the initial rainwater is relatively high in the content of pollutants, high in treatment difficulty and cost, and low in return flow volume. The toilet Hushing with the recycled water of the rainwater and the domestic sewage according to the present invention greatly reduces post-treatment di fficulty and saves treatment costs through an abandoned flow volume of 2 mm before abandoning flow by a flow abandon valve. The Chinese patent literature CN205421399U provides the Water Supply Device for Flushing Toilets with Rainwater. The water supply device only has two filtration devices, but cannot remove harmful pathogenic bacteria in the rainwater. The rainwater recycled to flush the toilets may be in direct contact with human bodies, and aquatic pathogens may infect the human bodies through inhalation, ingestion and skin contact. Therefore, in order to reduce public health risks, besides inorganic and organic pollutants in the rainwater, the pathogenic bacteria of flushing the toilet with the rainwater should also attract attention.
[0005] In 2016, the output of rural domestic sewage throughout the country was 8.351 billion to 12.526 billion cubic meters, while only 20% of administrative villages treated the domestic sewage, and the rest was basically discharged directly into the environment, thereby not only wasting the water resources, but also seriously affecting the rural living environment. A large number of studies showed that the pollutants contained in the domestic sewage mainly comprise organic matters (such
2020100085 16 Jan 2020 as proteins, carbohydrates, fats, urea and ammonia nitrogen) and a large number of pathogenic microorganisms (such as parasite ova and intestinal infectious viruses). If the domestic sewage is not properly treated, secondary pollution may be caused even after being used for flushing the toilets. Therefore, compared with the rainwater, the domestic sewage needs more complicated treatment processes before flushing the toilets. The Chinese patent literature CN206971321U provides the Water-saving System for Recycling Domestic Wastewater to Flush Toilets, but the system does not systematically treat the domestic sewage and has strong potential safety hazards to human body. In addition, the system is only suitable for university dorms and is strongly limited in application scope. Therefore, the above two technical solutions arc relatively low in price performance, thereby having no practical value in the rural areas. Thus, it is of great significance to study a technical solution of toilet flushing with recycled waler of lhe rain water and the domestic sewage, which can adapt to the rural environment.
SUMMARY OF PRESENT INVENTION [0006] Purposes of the present invention are to desirably address defects of the prior art and provide a rainwater and domestic water rcutilization system which is simple in structure and effective to collect, treat and aggregate rainwater and domestic water.
[0007] A technical solution adopted by the present invention is as follows: [0008] The rainwater and domestic waler reutilization system comprises a clear water pool, wherein a water inlet end of the clear water pool is communicated with a tap water pipeline; a front end of the clear water pool is also respectively connected with a rainwater recycling and cleaning system and a domestic water recycling and cleaning system; the rainwater recycling and cleaning system comprises water collection troughs, a rainwater collection pool, a rainwater filtration pool and a rainwater disinfection pool which are mounted in sequence; a water outlet end of the rainwater disinfection pool is communicated with a water inlet end of the clear water pool; the domestic water recycling and cleaning system comprises a sewage collection pool, a sewage sedimentation pool, an artificial wetland, a sewage filtration pool and a sewage disinfection pool which are mounted in sequence; the water outlet end of the sewage disinfection pool is communicated with the water inlet end ofthc clear waler pool; the clear waler pool collects treated rainwater and domestic water; municipal
2020100085 16 Jan 2020 water pipes assist and supplement the clear water pool; and the water outlet end of the clear water pool is communicated with water using equipment.
[0009] Furthermore, the waler collection troughs are respectively arranged at the top of a building and in open areas for receiving rainwater, wherein a weather information collection device is mounted in an area where the water collection troughs are arranged; a weather information collection module is built in the weather information collection device; and a signal output end of the weather information collection module is connected with a central control unit.
[0010] Furthermore, a drainage pipe is mounted at the bottom of the rainwater collection pool, wherein an electromagnetic valve and a flowmeter are mounted in the drainage pipe; and a control end of the electromagnetic valve is communicated with the central control unit.
[0011] Furthermore, a filtering tank is mounted in the rainwater filtration pool, wherein the filtering tank comprises a replaceable filter core and a backflush device; a pressure sensor is mounted in the filtering tank; the pressure sensor is used for detecting a pressure difference between inside and outside of the filter core; a signal output end of the pressure sensor is connected with a central control unit; and the central control unit is connected with the control end of the backflush device.
[0012] Furthermore, a liquid level sensor and an accommodation box with sodium hypochlorite arc mounted in the rainwater disinfection pool, wherein the liquid level sensor is used for detecting the height of water level in the rainwater disinfection pool in real time; the signal output end of the liquid level sensor is connected with the central control unit; the accommodation box is provided with a liquid outlet; the liquid outlet is connected with a liquid pump; a flowmeter and an electromagnetic valve arc mounted in the liquid outlet; and the flowmeter is used for detecting the liquid flow led out by the accommodation box.
[0013] Furthermore, a filtering tank is mounted in the sewage filtration pool, wherein the filtering tank comprises a replaceable filter core and a backflush device; a pressure sensor is mounted in the filtering tank; the pressure sensor is used for detecting a pressure difference between inside and outside of the filter core; a signal output end of the pressure sensor is connected with the central control unit; and the central control unit is connected with the control end of the back Hush device.
2020100085 16 Jan 2020 [0014] Furthermore, a liquid level sensor and an accommodation box with sodium hypochlorite arc mounted in the sewage disinfection pool, wherein the liquid level sensor is used for delecting the height of water level in the rainwater disinfection pool in real time; the signal output end of the liquid level sensor is connected with the central control unit; the accommodation box is provided with a liquid outlet; the liquid outlet is connected with a liquid pump; a flowmeter and an electromagnetic valve are mounted in the liquid outlet; and the flowmeter is used for detecting the liquid flow led out by the accommodation box.
[0015] Furthermore, an electromagnetic valve is mounted al a water inlet end in the clear water pool, wherein the clear water pool can be communicated with a tap water pipeline through the electromagnetic valve; the clear water pool is communicated with an external circulation pipeline; a centrifugal pump is arranged at a communication position of the clear water pool and the external circulation pipeline; and the control end of the centrifugal pump is communicated with the central control unit.
[0016] Furthermore, aquatic plants arc planted in the artificial wetland and are used for absorbing nitrogen and phosphorus elements in sewage.
[0017] The present invention has advantages and positive effects as follows: [0018] The rainwater and domestic waler reutilization system in the present invention comprises a clear water pool, wherein the water inlet end of the clear water pool is respectively connected with the tap water pipeline, the rainwater recycling and cleaning system and the domestic water recycling and cleaning system to form a water system for supplying waler from three water sources; the domestic water recycling and cleaning system is used as a main waler source to solve problems of water pollution and disorderly drainage in the existing rural environment on the premise of saving waler resources; the rainwater recycling and cleaning system can supplement water for residents during rainy seasons and other high-rainfall seasons; and the lap water pipeline can supplement water when the domestic water consumption is low and the rainwater slock is insufficient.
[0019] In the present invention, the water collection troughs are arranged al the top of the periphery of the building or in an open public area for collecting natural rainfall and guiding the natural falling water into the rainwater collection pool; the rainwater collection pool is used for collecting and storing rainwater in a plurality of water
2020100085 16 Jan 2020 collection troughs. At an initial stage of rainfall, pollutants or particles in the air will fall to be accumulated along with the rainwater. This part of rainfall has high content of pollutants, which is not conducive to treatment and reutilization. Therefore, the drainage pipe is mounted in the rainwater collection pool for draining this part of rainwater. In addition, the drainage pipe can also be used for draining the water deposited in the rainwater collection pool. Filtering equipment is mounted in the rainwater filtration pool for filtering and treating the water led out from the rainwater collection pool, wherein the pressure sensor is provided for detecting the pressure difference between inside and outside of the filter core. When the difference exceeds a preset threshold, the backflush device is started for backflush of the filter core, thereby ensuring the filtering effect of the filter core. When the pressure difference cannot be recovered within the threshold after backflush, the filter core needs to be replaced. The liquid level sensor built in the rainwater disinfection pool is used for monitoring the change of internal water level of the rainwater disinfection pool in real time. When the water quantity led out from the rainwater filtration pool reaches the threshold preset by the liquid level sensor, a sodium hypochlorite solution in the accommodation box is led out through the liquid pump. When the flowmeter detects that the flow of led-out solution is adapted to the increment of the water level, a control command is outputted to the electromagnetic valve to close the electromagnetic valve, thereby ensuring that a ratio of sodium hypochlorite to water is always maintained at a relatively constant value, ensuring that the water is in a weakly alkaline stale, effectively inhibiting the breeding of bacteria, and ensuring the cleanliness of a water body.
[0020] In the present invention, the sewage collection pool is used for collecting the domestic water and performing prctrealment and sedimentation in the sewage sedimentation pool. The domestic water has particularity, for example, dishwater, vegetable washing water and the like are rich in a large amount of nitrogen and phosphorus elements, but a device special for treating nitrogen and phosphorus elements docs not exist at present; if the water is directly drained, it is easy to cause eutrophication of the external water body, so the artificial wetland is arranged in combination with the sewage collection pool; and aquatic plants are planted m the artificial wetland to effectively adsorb the nitrogen and phosphorus elements in the water body. The waler treated by the sedimentation pool is guided to a water inlet side
2020100085 16 Jan 2020 of the artificial wetland as a supplementary water source; a drainage side of the artificial wetland is connected with the sewage filtration pool and the sewage disinfection pool to filter and disinfect the domestic water; and finally the treated water is guided into the clear water pool.
[0021] In the present invention, the central control unit is used for collecting data of detection devices such as the flowmeter, the liquid level sensor and the pressure sensor of the rainwater recycling and cleaning system and the domestic water recycling and cleaning system, and controlling devices such as the electromagnetic valve, the liquid pump and the backflush device to form a system with complete structure and close cooperation.
DESCRIPTION OF THE DRAWINGS [0022] Fig. 1 is a structural schematic diagram of the present invention; and [0023] Fig. 2 is a schematic diagram of a module of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [0024] The present invention will be further described below in combination with embodiments. The following embodiments are illustrative and not restrictive, and shall not be used for limiting the protection scope of the present invention.
[0025] A rainwater and domestic water reutilization system comprises a clear water pool 7. A water inlet end of the clear water pool is communicated with a tap water pipeline 9. The innovation of the present invention is: a front end of the clear water pool is also respectively connected with a rainwater recycling and cleaning system and a domestic water recycling and cleaning system; the rainwater recycling and cleaning system comprises water collection troughs 4, a rainwater collection pool 5, a rainwater filtration pool 6 and a rainwater disinfection pool 5 which are mounted in sequence; a water outlet end of the rainwater disinfection pool is communicated with a water inlet end of the clear water pool; the domestic water recycling and cleaning system comprises a sewage collection pool 14, a sewage sedimentation pool 13, an artificial wetland 12, a sewage filtration pool 11 and a sewage disinfection pool 10 which are mounted in sequence; the water outlet end of the sewage disinfection pool is communicated with the water inlet end of the clear water pool; the clear water pool collects treated rainwater and domestic water; municipal water pipes assist and supplement the clear water pool; and the water outlet end of the clear water pool is communicated with water using equipment 8 such as a toilet and a flushing device.
2020100085 16 Jan 2020 [0026] In the present embodiment, the waler collection troughs are respectively arranged al the lop 3 of a building and in open areas for receiving rainwater; a weather infomiation collection device 1 is mounted in an area where the water collection troughs are arranged; a weather information collection module is built in the weather information collection device; and a signal output end of the weather information collection module is connected with a central control unit.
[0027] In the present embodiment, a drainage pipe is mounted at the bottom of the rainwater collection pool; an electromagnetic valve and a flowmeter are mounted in the drainage pipe; and a control end of the electromagnetic valve is communicated with the central control unit.
[0028] In the present embodiment, a filtering tank is mounted in the rainwater filtration pool; the filtering tank comprises a replaceable filter core and a backflush device; a pressure sensor is mounted in the filtering tank; the pressure sensor is used for detecting a pressure difference between inside and outside of the filter core; a signal output end of the pressure sensor is connected with a central control unit; and the central control unit is connected with the control end of the backflush device. [0029] In the present embodiment, a liquid level sensor and an accommodation box with sodium hypochlorite arc mounted in the rainwater disinfection pool; the liquid level sensor is used for detecting the height of water level in the rainwater disinfection pool in real time; the signal output end of the liquid level sensor is connected with the central control unit; the accommodation box is provided with a liquid outlet; the liquid outlet is connected with a liquid pump; a flowmeter and an electromagnetic valve are mounted in the liquid outlet; and the flowmeter is used for detecting the liquid flow led out by the accommodation box.
[0030] In the present embodiment, a filtering tank is mounted in the sewage filtration pool; the filtering tank comprises a replaceable filter core and a backflush device; a pressure sensor is mounted in the filtering tank; the pressure sensor is used for detecting a pressure difference between inside and outside of the filler core; a signal output end of the pressure sensor is connected with the central control unit; and the central control unit is connected with the control end of the backflush device.
[0031 ] In the present embodiment, a liquid level sensor and an accommodation box with sodium hypochlorite are mounted in the sewage disinfection pool; the liquid level sensor is used for detecting the height of water level in the rainwater disinfection
2020100085 16 Jan 2020 pool in real lime; lhe signal output end of the liquid level sensor is connected with the central control unit; the accommodation box is provided with a liquid outlet; the liquid outlet is connected with a liquid pump; a flowmeter and an electromagnetic valve are mounted in the liquid outlet; and the flowmeter is used for detecting the liquid How led out by lhe accommodation box.
[0032] In the present embodiment, an electromagnetic valve is mounted at a water inlet end in the clear water pool; the clear water pool can be communicated with a tap water pipeline through lhe electromagnetic valve; the clear water pool is communicated with an external circulation pipeline; a centrifugal pump is arranged al a communication position of lhe clear water pool and the external circulation pipeline; and the control end of the centrifugal pump is communicated with the central control unit.
[0033] In the present embodiment, aquatic plants arc planted in the artificial wetland and are used for absorbing nitrogen and phosphorus elements in sewage.
[0034] In the present embodiment, the weather information collection module is a dynamic rainfall station produced by Beijing Zhongxi Yuanda Science and Technology Co., Ltd., with a model number of M30232.
[0035] In the present embodiment, the flowmeter mounted in the drainage pipe is DX-LSX-1 dopplcr ultrasonic flowmeter produced by Wuhan Dexi Technology Co., Ltd., wherein the volume of water to be drained at the beginning of rainfall is preset according to the volume of the rainwater collection pool; and the abandoned flow volume is preferably 3 mm.
[0036] In the present embodiment, activated carbon is used as an adsorption layer of the filter core in the filtering tank. When the resistance of a filter layer reaches 0.04 MPa, backflush needs to be performed at a backflush strength of 10 L/m2*s for 4-6 min. Activated carbon filter materials should be replaced regularly, usually every 3-6 months, as appropriate.
[0037] In the present embodiment, the liquid level sensor is a liquid level sensor produced by Jiangsu Honghcng Electronic Technology Development Co., Ltd., with a model number of 500122.
[0038] In the present embodiment, the concentration of sodium hypochlorite in the accommodation box is preferably 5 mg/L of sodium hypochlorite.
[0039] The working process of lhe present invention is as follows:
2020100085 16 Jan 2020 [0040] In the present invention, the water collection troughs are arranged at the lop of the periphery of the building or in an open public area for collecting natural rainfall and guiding the natural falling water into the rainwater collection pool; the rainwater collection pool is used for collecting and storing rainwater in a plurality of waler collection troughs. At an initial stage of rainfall, pollutants or particles in the air will fall to be accumulated along with the rainwater. This part of rainfall has high content of pollutants, which is not conducive to treatment and reutilization. Therefore, the drainage pipe is mounted in the rainwater collection pool for draining this part of rainwater. In addition, the drainage pipe can also be used for draining the water deposited in the rainwater collection pool. Filtering equipment is mounted in the rainwater filtration pool for filtering and treating the water led out from the rainwater collection pool, wherein the pressure sensor is provided for detecting the pressure difference between inside and outside of the filter core. When the difference exceeds a preset threshold, the backflush device is started for backflush of the filler core, thereby ensuring the filtering effect of the filter core. When the pressure difference cannot be recovered within the threshold after backflush, the filter core needs to be replaced. The liquid level sensor built in the rainwater disinfection pool is used for monitoring the change of internal water level of the rainwater disinfection pool in real time. When the water quantity led out from the rainwater filtration pool reaches the threshold preset by the liquid level sensor, a sodium hypochlorite solution in the accommodation box is led out through the liquid pump. When the flowmeter detects that the flow of led-out solution is adapted to the increment of the water level, a control command is outputted to the electromagnetic valve to close the electromagnetic valve, thereby ensuring that a ratio of sodium hypochlorite to water is always maintained at a relatively constant value, ensuring that the water is in a weakly alkaline state, effectively inhibiting the breeding of bacteria, and ensuring the cleanliness of the water body.
[0041] In the present invention, the sewage collection pool is used for collecting the domestic water and performing pretreatment and sedimentation in the sewage sedimentation pool. The domestic waler has particularity, for example, dishwater, vegetable washing waler and the like arc rich in a large amount of nitrogen and phosphorus elements, but a device special for treating nitrogen and phosphorus elements does not exist at present; if the water is directly drained, it is easy to cause io
2020100085 16 Jan 2020 eutrophication of the external water body, so the artificial wetland is arranged in combination with the sewage collection pool; and aquatic plants are planted in the artificial wetland to effectively adsorb the nitrogen and phosphorus elements in the waler body. The waler treated by the sedimentation pool is guided to a water inlet side of the artificial wetland as a supplementary water source; a drainage side of the artificial wetland is connected with the sewage filtration pool and the sewage disinfection pool to filter and disinfect the domestic water; and Anally the treated water is guided into the clear water pool.
[0042] In the present invention, the mounted weather information collection module is used for collecting real-time rainfall information in the corresponding area; and when receiving the rainfall information, the electromagnetic valve of the drainage pipe in the rainwater collection pool can be opened, to drain old rainwater, clean up the rainwater collection tank and store new rainwater.
[0043] Throughout the specification and the claims that follow, unless the context requires otherwise, the words “comprise” and “include” and variations such as “comprising” and “including” will be understood to imply the inclusion of a stated integer or group of integers, but not the exclusion of any other integer or group of integers.
[0044] The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement of any form of suggestion that such prior art forms part of the common general knowledge.
[0045] It will be appreciated by those skilled in the art that the invention is not restricted in its use to the particular application described. Neither is the present invention restricted in its preferred embodiment with regard to the particular elements and/or features described or depicted herein. It will be appreciated that the invention is not limited to the embodiment or embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions without departing from the scope of the invention.

Claims (9)

  1. THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
    1. A rainwater and domestic water reutilization system, comprising a clear water pool which has a water inlet end communicated with a tap water pipeline, wherein a front end of the clear water pool is also respectively connected with a rainwater recycling and cleaning system and a domestic water recycling and cleaning system; the rainwater recycling and cleaning system comprises water collection troughs, a rainwater collection pool, a rainwater filtration pool and a rainwater disinfection pool which arc mounted in sequence; a waler outlet end of the rainwater disinfection pool is communicated with a waler inlet end of the clear waler pool; the domestic water recycling and cleaning system comprises a sewage collection pool, a sewage sedimentation pool, an artificial wetland, a sewage filtration pool and a sewage disinfection pool which are mounted in sequence; the waler outlet end of the sewage disinfection pool is communicated with the waler inlet end of the clear water pool; the clear water pool collects treated rainwater and domestic waler; municipal water pipes assist and supplement the clear water pool; and the water outlet end of the clear water pool is communicated with water using equipment.
  2. 2. The rainwater and domestic water reutilization system according to claim 1, wherein the water collection troughs are respectively arranged at the top of a building and in open areas for receiving rainwater; a weather information collection device is mounted in an area where the waler collection troughs are arranged; a weather information collection module is built in the weather information collection device; and a signal output end of the weather information collection module is connected with a central control unit.
  3. 3. The rainwater and domestic water rcutilization system according to claim 2, wherein a drainage pipe is mounted at the bottom of the rainwater collection pool; an electromagnetic valve and a flowmeter arc mounted in the drainage pipe; and a control end of the electromagnetic valve is communicated with the central control unit.
    2020100085 16 Jan 2020
  4. 4. The rainwater and domestic water reutilization system according to claim 2, wherein a filtering lank is mounted in the rainwater filtration pool; the filtering tank comprises a replaceable filter core and a backflush device; a pressure sensor is mounted in the filtering tank; the pressure sensor is used for detecting a pressure difference between inside and outside of the filter core; a signal output end of the pressure sensor is connected with a central control unit; and the central control unit is connected with the control end of the backflush device.
  5. 5. The rainwater and domestic water reutilization system according to claim 2, wherein a liquid level sensor and an accommodation box with sodium hypochlorite are mounted in the rainwater disinfection pool; the liquid level sensor is used for detecting the height of water level in the rainwater disinfection pool in real time; the signal output end of the liquid level sensor is connected with the central control unit; the accommodation box is provided with a liquid outlet; the liquid outlet is connected with a liquid pump; a flowmeter and an electromagnetic valve are mounted in the liquid outlet; and the flowmeter is used for detecting the liquid flow led out by the accommodation box.
  6. 6. The rainwater and domestic water reutilization system according to claim 2, wherein a filtering tank is mounted in the sewage filtration pool; the filtering tank comprises a replaceable filter core and a backflush device; a pressure sensor is mounted in the filtering tank; the pressure sensor is used for detecting a pressure difference between inside and outside of the filter core; a signal output end of the pressure sensor is connected with the central control unit; and the central control unit is connected with the control end of the backflush device.
  7. 7. The rainwater and domestic water rcutilization system according to claim 2, wherein a liquid level sensor and an accommodation box with sodium hypochlorite are mounted in the sewage disinfection pool; the liquid level sensor is used for detecting the height of water level in the rainwater disinfection pool in real time; the signal output end of the liquid level sensor is connected with the central control unit;
    2020100085 16 Jan 2020 the accommodation box is provided with a liquid outlet; the liquid outlet is connected with a liquid pump; a flowmeter and an electromagnetic valve are mounted in the liquid outlet; and the flowmeter is used for detecting the liquid flow led out by the accommodation box,
  8. 8. The rainwater and domestic water reulilization system according to claim 2, wherein an electromagnetic valve is mounted at a water inlet end in the clear water pool; the clear water pool can be communicated with a tap water pipeline through the electromagnetic valve; the clear water pool is communicated with an external circulation pipeline; a centrifugal pump is arranged at a communication position of the clear water pool and the external circulation pipeline; and the control end of the centrifugal pump is communicated with the central control unit.
  9. 9. The rainwaler and domestic water reutilization system according to claim 2, wherein aquatic plants arc planted in the artificial wetland and arc used for absorbing nitrogen and phosphorus elements in sewage.
AU2020100085A 2019-07-08 2020-01-16 Rainwater and domestic water reutilization system Ceased AU2020100085A4 (en)

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CN201910610127.8A CN110409552A (en) 2019-07-08 2019-07-08 Rainwater and Domestic water secondary utilize system
CN2019106101278 2019-07-08

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CN111139890A (en) * 2019-12-30 2020-05-12 上海洗霸科技股份有限公司 Building water supply and drainage resource recycling process

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