CN107814467B - Simple rural domestic sewage wetland treatment system - Google Patents
Simple rural domestic sewage wetland treatment system Download PDFInfo
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- CN107814467B CN107814467B CN201711339468.3A CN201711339468A CN107814467B CN 107814467 B CN107814467 B CN 107814467B CN 201711339468 A CN201711339468 A CN 201711339468A CN 107814467 B CN107814467 B CN 107814467B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
A simple rural domestic sewage wetland treatment system comprises rural domestic sewage householder, conventional septic tanks correspondingly connected with each rural domestic sewage householder through sewage pipes and water outlet pipes converging each conventional septic tank, wherein the water outlet pipes are connected with an integrated purifying tank, and the integrated purifying tank is discharged into an artificial wetland through a pipeline. Realizing multi-section biochemical treatment effect; the higher concentration of the activated sludge is kept; the purifying tank is not blocked; the collection and summarization of household sewage in all the places are realized, and the household sewage is treated together; the sewage treatment achieves the effect of total nitrogen and total phosphorus first-grade A; the nitrification and denitrification are synchronously realized by utilizing the aerobic activated sludge particles, and the artificial wetland is utilized, so that the wastewater is not required to be manually reprocessed.
Description
Technical Field
The invention belongs to the technical field of sewage treatment and environmental protection, and particularly relates to improvement and upgrade of a process for combined application of a conventional septic tank, an improved air-lift septic tank and an integrated purifying tank in rural sewage treatment.
Background
At present, with the increasing severity of rural domestic pollution, rural sewage treatment is urgent. The conventional design can be divided into two-grid septic tanks or three-grid septic tanks, the conventional septic tanks have a plurality of defects, when the conventional septic tanks are used for sewage treatment in new rural areas, after the pipelines are aged and blocked, activated sludge cannot be supplied to crops for use, and under the condition of pipeline communication, the conventionally adopted two-grid septic tanks or three-grid septic tanks have no denitrification and dephosphorization effects and are directly discharged, so that river pollution is caused.
In addition, the traditional single-purification septic tank treatment technology is easy to generate blockage, so that the effect of total nitrogen and total phosphorus first-grade A cannot be achieved, and a plurality of difficulties are brought to the environmental pollution control in new rural areas of China.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for realizing multi-section biochemical treatment effect; the higher concentration of the activated sludge is kept; the purifying tank is not blocked; the collection and summarization of household sewage in all the places are realized, and the household sewage is treated together; the sewage treatment achieves the effect of total nitrogen and total phosphorus first-grade A; the nitrification and denitrification are synchronously realized by utilizing the aerobic activated sludge particles, and the simple rural domestic sewage wetland treatment system which does not need to manually reprocess the drainage is utilized.
In order to achieve the purpose of the invention, the following technical scheme is provided: a simple rural domestic sewage wetland treatment system comprises rural domestic sewage households, conventional septic tanks correspondingly connected with each rural domestic sewage householder through sewage pipes and water outlet pipes converging each conventional septic tank, and is characterized in that the water outlet pipes are connected with an integrated purifying tank, the integrated purifying tank is discharged into an artificial wetland through pipelines, the integrated purifying tank comprises a horizontal shell, an inflow port arranged at the left side and the near top end of the horizontal shell, an outflow port arranged at the right side and the near top end of the horizontal shell, a main partition plate arranged in the horizontal shell, the horizontal shell is divided into two chambers from left to right by the main partition plate, the left chamber is an anaerobic zone, the right chamber is an aerobic zone, the left chamber comprises a solid-liquid separation tank arranged at the near top end, the other spaces form a sludge storage tank, the solid-liquid separation tank comprises a first overflow port arranged at the near top end of the tank, a second overflow port arranged at the near bottom end of the tank, and a third overflow port arranged on the second overflow port, and a third overflow port communicated with the first overflow port and the third overflow port; the right chamber is divided into an upper chamber, a middle chamber, a lower chamber and a settling tank by a third partition plate and a fourth partition plate, a sterilizing tank is arranged at a position close to a discharge port of the right chamber, a water inlet is arranged on a tank body of the sterilizing tank and communicated with the near top end of the settling tank, the discharge port is communicated with the sterilizing tank, a fourth overflow port which enables the support flow chamber and the slow support flow chamber to be communicated is arranged at the near top end of the third partition plate, and a water passing channel between the slow support flow chamber and the settling tank is formed by the bottom end of the fourth partition plate and the horizontal shell at intervals; the near top end of the solid-liquid separation three areas is provided with a water outlet communicated with a carrier flow chamber, a quantitative air-lift water inlet device is arranged between the carrier flow chamber and the sludge storage tank, an adjustable air-lift reflux device is arranged between the denitrification device and the slow carrier flow chamber, and the carrier flow chamber and the slow carrier flow chamber are both provided with aerobic aeration devices.
Preferably, the denitrification device comprises a water inlet tank arranged in the solid-liquid separation zone, a filling pipe communicated with the water inlet tank and a water outlet pipe connected with the tail end of the filling pipe, wherein the filling pipe penetrates out of the solid-liquid separation zone and stretches into the near bottom end of the sludge storage tank, the water outlet pipe is perpendicular to the filling pipe, a plurality of water outlets are uniformly formed in the pipe wall of the water outlet pipe, and filling materials are arranged in the filling pipe.
Preferably, an adjustable mixed liquid gas stripping reflux device is arranged between the denitrification device and the slow supporter flow chamber, the adjustable mixed liquid gas stripping reflux device comprises a flow control valve and a mixed liquid gas stripping main pipe extending into the near bottom end of the slow supporter flow chamber, a reflux pipe communicated with the mixed liquid gas stripping main pipe is communicated with the denitrification device water inlet tank, and an observation port is formed in the pipe wall at the upper part of the reflux pipe.
Preferably, the sterilizing tank comprises a sealing shell and a sterilizing sheet quantitative adding device arranged in the sealing shell.
The invention has the beneficial effects that: the household of the invention is provided with a special conventional septic tank which is connected with the corresponding household through a pipeline, and each conventional septic tank is mutually independent. According to the invention, the sludge treated by each conventional septic tank is connected to one improved air-lift septic tank through a circular or rectangular pipeline, and finally is summarized and connected into an integrated purifying tank, and is treated uniformly in the purifying tank, so that the conventional septic tank, the improved air-lift septic tank and the integrated purifying tank are organically combined, the defects of the prior art are overcome, and the multi-section biochemical treatment effect is realized; the higher concentration of the activated sludge is maintained; the purifying tank is not blocked; the collection and summarization of household sewage in all the places are realized, and the household sewage is treated together; the treatment capacity achieves the effect of total nitrogen and total phosphorus first-order A; the nitrification and denitrification are synchronously realized by utilizing aerobic activated sludge particles; the integrated purifying tank and the improved air-lifting septic tank share one fan, so that the energy consumption is saved, the cost is reduced, the artificial wetland is utilized for self-treatment of drainage, and the sewage discharge is solved while the landscape is increased.
Drawings
FIG. 1 is a schematic diagram of a system according to the present invention.
Fig. 2 is a front view of the purge tank of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a cross-sectional view A-A of fig. 3.
FIG. 5 is a schematic diagram of the denitrification device in FIG. 2.
FIG. 6 is a top view of the denitrification apparatus of FIG. 5.
FIG. 7 is a schematic diagram of the connection between the blower and the stripping device and the aeration zone of FIG. 2.
Description of the embodiments
Example 1: a simple rural domestic sewage wetland treatment system comprises rural domestic sewage households 1, conventional septic tanks 2 correspondingly connected with each rural domestic sewage households 1 through sewage pipes and water outlet pipes converging each conventional septic tank 2, wherein the water outlet pipes are connected with an integrated purifying tank 3, and the integrated purifying tank 3 is discharged into an artificial wetland 4 through a pipeline.
The integrated purifying tank 3 comprises a horizontal shell 3.1, an inflow port 3.1.1 arranged at the left side of the horizontal shell 3.1 and close to the top, a discharge port 3.1.2 arranged at the right side of the horizontal shell 3.1 and close to the top, a main partition plate 3.2 arranged in the horizontal shell 3.1, the main partition plate 3.2 divides the horizontal shell 3.1 from left to right into two chambers, the left chamber 3.3 is an anaerobic zone, the right chamber 3.4 is an aerobic zone, the left chamber 3.3 comprises a solid-liquid separation tank 3.5 arranged at the close to the top, the rest of the space forms a sludge storage tank 3.6, the solid-liquid separation tank 3.5 comprises a tank body 3.5.1 with an open top, a first overflow port 3.5.2 arranged at the close to the top of the tank body 3.5.1, a mud outlet 3.5.3 arranged at the close to the bottom of the tank body 3.5.1, a first partition plate 3.1 is arranged in the tank body 3.5.1, a second partition plate 3.3.2 divides the tank body 3.5.1 into a first solid-liquid separation tank 3.5, and a second solid-liquid separation tank 3.7.1 from the first overflow port 3.7, and a third overflow port 3.3.1 is communicated with the first overflow port 3.3.3.7 and a second overflow port 3.3.3.1, and a third solid-liquid separation zone 3.3.3.7 is communicated with the first overflow port 3.3.1 and a third solid-liquid separation zone 3.3.3.3.3; the right chamber 3.4 is divided into an upper chamber, a middle chamber, a lower chamber and a lower chamber by a third baffle plate and a fourth baffle plate (3.4.1 and 3.4.2), the upper chamber is a carrier flow chamber 3.10, a slow carrier flow chamber 3.11 and a sedimentation tank 3.12 respectively, a disinfection tank 3.13 is arranged at the position, close to a discharge port 3.1.2, of the right chamber 3.4, a water inlet 3.13.3 is arranged on a tank body of the disinfection tank 3.13 and communicated with the near top end of the sedimentation tank 3.12 (namely, a water inlet is formed in a shared wall of the disinfection tank and the sedimentation tank), the discharge port 3.1.2 is communicated with the disinfection tank 3.13, a fourth overflow port 3.4.1.1 which enables the carrier flow chamber 3.10 and the slow carrier flow chamber 3.11 to be communicated is arranged at the near top end of the third baffle plate 3.4.1, and a water passing channel 3.14 between the slow carrier flow chamber 3.11 and the sedimentation tank 3.12 is formed by the bottom end of the fourth baffle plate 3.4.2 and the horizontal casing 3.1 at intervals; the solid-liquid separation three-region 3.9 is provided with a water outlet 3.9.1 near the top end and is communicated with a carrier flow chamber 3.10 (namely, a water outlet 3.9.1 is formed in a main partition plate 3.2 shared by the solid-liquid separation three-region and the carrier flow chamber 3.10, a quantitative gas stripping water inlet device 3.15 is arranged between the carrier flow chamber 3.10 and the sludge storage tank 3.6, the quantitative gas stripping water inlet device 3.15 comprises a flow control valve 3.15.1, a mixed liquid gas stripping water main pipe 3.15.2 extending into the near bottom end of the sludge storage tank 3.6, a water outlet pipe 3.15.3 communicated with the mixed liquid gas stripping water main pipe 3.15.2, and a water outlet pipe 3.15.3 communicated with the carrier flow chamber 3.10.
The denitrification device 3.16 is arranged in the first solid-liquid separation area 3.7 and comprises a water inlet tank 3.16.1 arranged in the first solid-liquid separation area 3.7, a filler pipe 3.16.2 communicated with the water inlet tank 3.16.1 and a water outlet pipe 3.16.3 connected with the tail end of the filler pipe 3.16.2, the filler pipe 3.16.2 penetrates out of the first solid-liquid separation area 3.7 and stretches into the near bottom end of the sludge storage tank 3.6, the water outlet pipe 3.16.3 is perpendicular to the filler pipe 3.16.2, a plurality of water outlets 3.16.4 are uniformly formed in the wall of the water outlet pipe 3.16.3, and fillers 3.16.5 are arranged in the filler pipe 3.16.2.
An adjustable mixed liquid stripping reflux device 3.17 is arranged between the denitrification device 3.16 and the slow supporter flow chamber 3.11, the adjustable mixed liquid stripping reflux device 3.17 comprises a flow control valve 3.17.1, a mixed liquid stripping main pipe 3.17.2 extending into the near bottom end of the slow supporter flow chamber 3.11, a return pipe 3.17.3 communicated with the mixed liquid stripping main pipe 3.17.2, a return pipe 3.17.3 communicated with a denitrification device water inlet tank 3.16.1, and an observation port is formed in the pipe wall at the upper part of the return pipe 3.17.3.
The quantitative air stripping water inlet device 3.15 and the mixed liquid air stripping main pipes (3.15.2 and 3.17.2) of the adjustable mixed liquid air stripping reflux device 3.17 are respectively provided with a pipeline connecting fan 3.18.
The bottoms of the carrier flow chamber 3.10 and the buffer carrier flow chamber 3.11 are respectively provided with an aerobic aeration device, and the aeration quantity of the two aerobic aeration devices is controlled by a two-way control valve. The aeration pipeline 3.19 of the aerobic aeration device is connected with a fan.
The sterilizing tank 3.13 includes a seal housing 3.13.1 and a sterilizing sheet dosing device 3.13.2 mounted in the seal housing 3.13.1.
In the above embodiment 1, the material of the main partition plate 3.2 of the integrated purification tank 3 may be glass fiber reinforced plastic. The fourth diaphragm 3.4.2 may be glass fiber reinforced plastic. The third partition 3.4.1 between the slow carrier flow chamber 3.11 and the carrier flow chamber 3.10 may be integrally injection molded. The slow supporter flow chamber 3.11 and the supporter flow chamber 3.10 are provided with the supporter, and the number of the supporter in the slow supporter flow chamber 3.11 is larger than that in the supporter flow chamber 3.10. The horizontal housing 3.1 of the integrated purification tank 3 can be formed by integral injection molding. The left and right sides of the top end of the horizontal shell 3.1 can be respectively provided with an observation manhole.
The artificial wetland is a technology for treating sewage and sludge by utilizing the physical, chemical and biological triple synergistic effects of soil, artificial medium, plants and microorganisms in the process of flowing sewage and sludge along a certain direction by manually constructing and controlling the ground similar to the swamp, and controlling the sewage and sludge to be dosed on the constructed wetland. The action mechanism comprises adsorption, detention, filtration, oxidation reduction, precipitation, microbial decomposition, conversion, plant shielding, residue accumulation, transpiration moisture and nutrient absorption and the action of various animals. The constructed wetland is a comprehensive ecological system.
Claims (3)
1. A simple rural domestic sewage wetland treatment system comprises rural domestic sewage households, conventional septic tanks correspondingly connected with each rural domestic sewage householder through sewage pipes and water outlet pipes converging each conventional septic tank, and is characterized in that the water outlet pipes are connected with an integrated purifying tank, the integrated purifying tank is discharged into an artificial wetland through pipelines, the integrated purifying tank comprises a horizontal shell, an inflow port arranged at the left side and the near top end of the horizontal shell, an outflow port arranged at the right side and the near top end of the horizontal shell, a main partition plate arranged in the horizontal shell, the horizontal shell is divided into two chambers from left to right by the main partition plate, the left chamber is an anaerobic zone, the right chamber is an aerobic zone, the left chamber comprises a solid-liquid separation tank arranged at the near top end, the other spaces form a sludge storage tank, the solid-liquid separation tank comprises a first overflow port arranged at the near top end of the tank, a second overflow port arranged at the near bottom end of the tank, and a third overflow port arranged on the second overflow port, and a third overflow port communicated with the first overflow port and the third overflow port; the right chamber is divided into an upper chamber, a middle chamber, a lower chamber and a settling tank by a third partition plate and a fourth partition plate, a sterilizing tank is arranged at a position close to a discharge port of the right chamber, a water inlet is arranged on a tank body of the sterilizing tank and communicated with the near top end of the settling tank, the discharge port is communicated with the sterilizing tank, a fourth overflow port which enables the support flow chamber and the slow support flow chamber to be communicated is arranged at the near top end of the third partition plate, and a water passing channel between the slow support flow chamber and the settling tank is formed by the bottom end of the fourth partition plate and the horizontal shell at intervals; the solid-liquid separation three-zone near top sets up delivery port intercommunication supporter flow chamber, be provided with quantitative air lift water inlet unit between supporter flow chamber and the mud storage groove, be provided with adjustable air lift reflux unit between denitrification facility and the slow supporter flow chamber, supporter flow chamber and slow supporter flow chamber all are provided with good oxygen aeration equipment, be provided with denitrification facility in the solid-liquid separation one-zone including arranging into the basin in the solid-liquid separation one-zone, with the filler pipe of going into the water tank intercommunication and with filler pipe end-to-end connection's outlet pipe, the filler pipe wears out from the solid-liquid separation one-zone and stretches into the mud storage groove near bottom, the outlet pipe sets up with filler pipe is perpendicular, evenly offered a plurality of delivery ports on the outlet pipe wall, be provided with the filler in the filler pipe.
2. The simple rural domestic sewage wetland treatment system according to claim 1, wherein an adjustable mixed liquid stripping reflux device is arranged between the denitrification device and the slow carrier flow chamber, the adjustable mixed liquid stripping reflux device comprises a flow control valve, a mixed liquid stripping main pipe extending into the near bottom end of the slow carrier flow chamber, a reflux pipe communicated with the mixed liquid stripping main pipe, the reflux pipe is communicated to a denitrification device water inlet tank, and an observation port is formed in the pipe wall at the upper part of the reflux pipe.
3. The simple rural domestic sewage wetland treatment system according to claim 1, wherein the disinfection tank comprises a sealed shell and a disinfection sheet quantitative feeding device arranged in the sealed shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339468.3A CN107814467B (en) | 2017-12-14 | 2017-12-14 | Simple rural domestic sewage wetland treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339468.3A CN107814467B (en) | 2017-12-14 | 2017-12-14 | Simple rural domestic sewage wetland treatment system |
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| Publication Number | Publication Date |
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| CN107814467A CN107814467A (en) | 2018-03-20 |
| CN107814467B true CN107814467B (en) | 2023-09-08 |
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| CN201711339468.3A Active CN107814467B (en) | 2017-12-14 | 2017-12-14 | Simple rural domestic sewage wetland treatment system |
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| CN111592182A (en) * | 2020-05-22 | 2020-08-28 | 江苏中车环保设备有限公司 | Household domestic sewage treatment system and method |
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| CN203668180U (en) * | 2013-12-20 | 2014-06-25 | 厦门嵩湖环境技术开发有限公司 | Sewage treatment system for temporary biotope |
| CN103991959A (en) * | 2014-05-27 | 2014-08-20 | 青岛思普润水处理有限公司 | Biological sewage reaction system and upgrading and expanding method |
| CN204125300U (en) * | 2014-09-19 | 2015-01-28 | 广西益江环保科技有限责任公司 | A kind of purification tank for the treatment of dispersion type domestic wastewater |
| CN204529614U (en) * | 2015-04-02 | 2015-08-05 | 重庆中科环保产业有限公司 | A kind of integrated sewage treating apparatus |
| CN105016580A (en) * | 2015-07-23 | 2015-11-04 | 四川四通欧美环境工程有限公司 | Sewage treatment plant classification deep treatment system |
| CN105502833A (en) * | 2016-01-13 | 2016-04-20 | 浙江商达环保有限公司 | Underground type micro power purifying tank sewage treatment equipment and treatment method |
| CN205398423U (en) * | 2016-02-22 | 2016-07-27 | 黄山市环境科学研究所 | Multi -functional manure pit |
| CN205893004U (en) * | 2016-07-25 | 2017-01-18 | 浙江浙大水业有限公司 | Casual household's type rural domestic sewage treatment device |
| CN206173173U (en) * | 2016-09-14 | 2017-05-17 | 广东粤海水务股份有限公司 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
| CN107399884A (en) * | 2017-09-21 | 2017-11-28 | 凌志环保股份有限公司 | A kind of new rural village domestic sewage denitrifying-dephosphorizing cleaning system |
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