CN110642458A - Sewage treatment system suitable for rural single family - Google Patents
Sewage treatment system suitable for rural single family Download PDFInfo
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- CN110642458A CN110642458A CN201910861511.5A CN201910861511A CN110642458A CN 110642458 A CN110642458 A CN 110642458A CN 201910861511 A CN201910861511 A CN 201910861511A CN 110642458 A CN110642458 A CN 110642458A
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- artificial wetland
- conduit
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- wetland system
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- 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
Abstract
The invention discloses a sewage treatment system suitable for a single rural family, which comprises a sedimentation tank and an artificial wetland system; one end of the sedimentation tank is communicated with the sewage inlet, the other end of the sedimentation tank is communicated with the water inlet end of the water pump, and the water outlet end of the water pump is communicated with the artificial wetland system through a first conduit; the artificial wetland system comprises a substrate layer at the upper part and an unsaturated bed layer at the lower part, a water distribution pipeline is embedded between the substrate layer and the unsaturated bed layer, one end of the water distribution pipeline is communicated with the first conduit, and the other end of the water distribution pipeline is communicated with the artificial wetland system; emergent aquatic plants are planted in the matrix layer; the artificial wetland system is communicated with the circulating device through a second conduit, the other end of the circulating device is communicated with the sedimentation tank through a third conduit, and the water filtered by the circulating device flows into the artificial fishpond. The invention has the advantages of low investment, low energy consumption, low management requirement, low operation cost and good effluent quality, and can meet the drainage requirement of rural areas at the present stage.
Description
Technical Field
The invention belongs to the technical field of rural sewage treatment equipment, and particularly relates to a sewage treatment system suitable for a non-town single family in a rural area.
Background
The artificial wetland system is an environment-friendly sewage treatment technology which is started in recent years, and although the primary purpose of the artificial wetland system is to treat sewage, the artificial wetland system also provides a good human environment and a wild animal and plant living environment, so the artificial wetland system enjoys the reputation of a biological supermarket. The artificial wetland is mainly used for removing nitrogen through nitrification-denitrification, in an aerobic zone, nitrifying bacteria oxidize ammonia nitrogen into nitrate nitrogen, and in an anoxic zone, denitrifying bacteria reduce the nitrate nitrogen into nitrogen. Although plants can absorb nitrogen, no nitrification is important, and phosphorus and pathogens are removed by adsorption, precipitation of clay minerals in aluminum, iron, calcium and sediments.
At the present stage, the national degree of importance for water environment problems is high, sewage in rural and rural township areas in suburban areas can be basically treated by building sewage treatment stations and pipe networks, a considerable part of rural population in China is scattered at present, the urban and rural areas are typical in mountainous areas, the arrangement of pipelines is not good in both construction difficulty level and economic consideration, facilities such as sewage treatment stations are built, the design and construction time is long, the price is high, and the ecological performance is not good. Therefore, it is necessary to design a sewage treatment system which can be suitable for non-town type single household self-use in rural areas.
Disclosure of Invention
The invention aims to provide a vertical flow constructed wetland system suitable for a single rural family, which solves the technical problems that the sewage in rural and rural township areas in suburban areas can be treated by building a sewage treatment station and connecting with a pipe network, a considerable part of rural population in China is scattered currently, the arrangement of pipelines is not good in both the construction difficulty level and economic consideration in mountainous areas, the facilities such as the sewage treatment station are built, the design and construction time is long, the price is high, and the ecological performance is poor.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a sewage treatment system suitable for a single rural family comprises a sedimentation tank and an artificial wetland system;
one end of the sedimentation tank is communicated with the sewage inlet, the other end of the sedimentation tank is communicated with the water inlet end of the water pump, and the water outlet end of the water pump is communicated with the artificial wetland system through a first conduit;
the artificial wetland system comprises a substrate layer at the upper part and an unsaturated bed layer at the lower part, a water distribution pipeline is embedded between the substrate layer and the unsaturated bed layer, one end of the water distribution pipeline is communicated with the first conduit, and the other end of the water distribution pipeline is communicated with the artificial wetland system; emergent aquatic plants are planted in the matrix layer;
the artificial wetland system is communicated with the circulating device through a second conduit, the other end of the circulating device is communicated with the sedimentation tank through a third conduit, and water filtered by the circulating device flows into the artificial fishpond;
the height of the artificial wetland system is higher than that of the sedimentation tank, and the height of the over-circulation device is lower than that of the artificial wetland system but higher than that of the sedimentation tank.
In a further improvement, the substrate layer comprises gravel crushed stones and soil with the diameter of less than 5 mm.
Further improved, the unsaturated bed layer is a wood chip sandstone layer with the thickness of ten centimeters.
The artificial wetland system is further improved, and the artificial wetland system also comprises a plurality of aeration pipes, wherein the upper ends of the aeration pipes extend out of the substrate layer to be communicated with the atmosphere, and the lower ends of the aeration pipes are communicated with the unsaturated bed layer.
Further improved, a drainage pipeline is laid on the upper layer of the artificial wetland system, and the outlet of the drainage pipeline is communicated with the second conduit.
The water inlet end of the drainage pipeline is higher than the water outlet end, and the height difference is 10 cm.
The circulating device comprises a filtering tank, a ceramsite layer is arranged in the filtering tank, a tee joint is connected to the port of the second guide pipe in the filtering tank, one end of the tee joint is communicated with the third guide pipe, the other end of the tee joint is directly communicated with the filtering tank, and the bottom of the filtering tank, which is provided with the ceramsite layer, is communicated with the artificial fish pond through a fourth pipeline.
Compared with the prior art, the invention has the beneficial effects that:
the invention has the advantages of low investment, low energy consumption, low management requirement, low operation cost and good effluent quality, and can be suitable for the drainage requirement of the rural areas at the present stage.
2. The vertical flow artificial wetland system is adopted, and the occupied area is smaller than that of a horizontal flow or composite flow artificial wetland.
3. The circulating device can normally operate under the conditions of backflow and no backflow, reduces the concentration of treated water before passing through the wetland, and improves the treatment efficiency.
Drawings
FIG. 1 is a top view of the sewage treatment system of the present invention adapted for use in a single rural household.
Fig. 2 is a cross-sectional view of the circulation device of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
as shown in fig. 1 and 2, the sewage treatment system suitable for a single rural household comprises a sedimentation tank and an artificial wetland system;
one end of the sedimentation tank 2 is communicated with the sewage inlet 1, the other end of the sedimentation tank is communicated with the water inlet end of the water pump 3, and the water outlet end of the water pump 3 is communicated with the artificial wetland system through a first conduit 11;
the artificial wetland system comprises a substrate layer at the upper part and an unsaturated bed layer at the lower part, a water distribution pipeline 4 is embedded between the substrate layer and the unsaturated bed layer, one end of the water distribution pipeline is communicated with the first conduit, and the other end of the water distribution pipeline is communicated with the artificial wetland system; emergent aquatic plants are planted in the matrix layer;
the artificial wetland system is communicated with a circulating device 7 through a second conduit 8, the other end of the circulating device 7 is communicated with the sedimentation tank 2 through a third conduit 9, and water filtered by the circulating device flows into the artificial fishpond;
the height of the artificial wetland system is higher than that of the sedimentation tank, and the height of the over-circulation device is lower than that of the artificial wetland system but higher than that of the sedimentation tank.
In this embodiment, the substrate layer comprises gravel and dirt having a diameter of less than 5 mm.
In this example, the unsaturated bed is a ten centimeter thick layer of sawdust sandstone.
In this embodiment, the artificial wetland system further comprises a plurality of aeration pipes 5, wherein the upper ends of the aeration pipes 5 extend out of the substrate layer to be communicated with the atmosphere, and the lower ends of the aeration pipes 5 are communicated with the unsaturated bed layer.
In this embodiment, a drainage pipeline 6 is laid on the upper layer of the artificial wetland system, and the outlet of the drainage pipeline 6 is communicated with the second conduit.
In this embodiment, the water inlet end of the drainage pipeline is higher than the water outlet end, and the height difference is 10 cm.
In this embodiment, the circulating device 7 includes a filtering tank, a ceramsite layer 12 is disposed in the filtering tank, a tee joint is connected to a port of the second conduit 8 located in the filtering tank, one end of the tee joint is communicated with the third conduit 9, the other end of the tee joint is directly communicated with the filtering tank, and the bottom of the filtering tank, where the ceramsite layer is disposed, is communicated with the artificial fish pond through a fourth pipeline 10.
From original sewage water inlet 1 in house, sewage is discharged into circular sedimentation tank 2 and is depositd, and water after depositying is discharged into constructed wetland system by first pipe under the promotion of water pump 3, and the matrix is gravel rubble and earth that layer diameter is less than 5mm in the constructed wetland system, plants emergent aquatic plants such as reed, cattail according to local actual conditions. The bed layer is aerated through the 3 sections of aeration pipes 5, namely the aeration pipes 5 can connect the air with a drainage system at the bottom of the bed body to form the convection of the air, thereby achieving the aeration effect. The unsaturated bed layer separates the water distribution pipe 4 from the outside through a wood chip sand stone layer with the thickness of ten centimeters. The filtered water vertically enters into an unsaturated bed layer, organic matters are removed through an aerobic process, and ammonia removed from amino acid is subjected to nitrification under the influence of nitrous acid and nitric acid bacteria under the aerobic condition when the water passes through the bed layer.
The artificial wetland system has a very obvious effect when treating high-concentration sewage, a set of reflux device is specially designed to improve the denitrification efficiency, the upper part of a drainage pipeline 6 is raised by 10cm when in design, the sewage is converged into a circulating device 7 through the drainage pipeline 6 under the action of gravity through a second conduit 8, the circulating device 7 can enable the treated water to flow out of a third conduit 9 and flow back to a sedimentation tank 2 under the action of a circulating well, the plan view of the implementation schematic of the circulating device 7 is shown in figure 2, a three-way sewage conduit conveyed from the transverse circulating second conduit 8 is divided into two parts, one part directly flows back to the starting point of the device through a bent pipe through the vertical third conduit 9, and the other part of the sewage is discharged into an artificial pond at an opening at the bottom after being filtered by a ceramsite matrix.
The undescribed parts of the present invention are the same as or implemented using prior art.
Claims (7)
1. A sewage treatment system suitable for a single rural family is characterized by comprising a sedimentation tank and an artificial wetland system;
one end of the sedimentation tank is communicated with the sewage inlet, the other end of the sedimentation tank is communicated with the water inlet end of the water pump, and the water outlet end of the water pump is communicated with the artificial wetland system through a first conduit;
the artificial wetland system comprises a substrate layer at the upper part and an unsaturated bed layer at the lower part, a water distribution pipeline is embedded between the substrate layer and the unsaturated bed layer, one end of the water distribution pipeline is communicated with the first conduit, and the other end of the water distribution pipeline is communicated with the artificial wetland system; emergent aquatic plants are planted in the matrix layer;
the artificial wetland system is communicated with the circulating device through a second conduit, the other end of the circulating device is communicated with the sedimentation tank through a third conduit, and water filtered by the circulating device flows into the artificial fishpond;
the height of the artificial wetland system is higher than that of the sedimentation tank, and the height of the over-circulation device is lower than that of the artificial wetland system but higher than that of the sedimentation tank.
2. The sewage treatment system for rural individual households in accordance with claim 1, wherein the substrate layer comprises gravel and soil having a diameter of less than 5 mm.
3. The sewage treatment system suitable for rural single household according to claim 1 or 2, wherein the unsaturated bed layer is a wood flour gravel layer with a thickness of ten cm.
4. The sewage treatment system suitable for rural single household as claimed in claim 3, wherein the artificial wetland system further comprises a plurality of aeration pipes, the upper ends of the aeration pipes extend out of the substrate layer and are communicated with the atmosphere, and the lower ends of the aeration pipes are communicated with the unsaturated bed layer.
5. The sewage treatment system applicable to single rural family according to claim 4, wherein a drainage pipeline is laid on the upper layer of the artificial wetland system, and the outlet of the drainage pipeline is communicated with the second conduit.
6. The sewage treatment system suitable for rural single household as claimed in claim 5, wherein the water inlet end of the drainage pipeline is higher than the water outlet end, and the height difference is 10 cm.
7. The sewage treatment system applicable to a rural single household as claimed in claim 6, wherein the circulating device comprises a filtering tank, a ceramsite layer is arranged in the filtering tank, a tee joint is connected to a port of the second conduit in the filtering tank, one end of the tee joint is communicated with the third conduit, the other end of the tee joint is directly communicated with the filtering tank, and the bottom of the filtering tank, provided with the ceramsite layer, is communicated with the artificial fish pond through a fourth pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861511.5A CN110642458A (en) | 2019-09-12 | 2019-09-12 | Sewage treatment system suitable for rural single family |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861511.5A CN110642458A (en) | 2019-09-12 | 2019-09-12 | Sewage treatment system suitable for rural single family |
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| CN110642458A true CN110642458A (en) | 2020-01-03 |
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| CN201910861511.5A Pending CN110642458A (en) | 2019-09-12 | 2019-09-12 | Sewage treatment system suitable for rural single family |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040087861A (en) * | 2003-04-09 | 2004-10-15 | 청호환경개발주식회사 | A deposit's processing method and its system |
| CN108147624A (en) * | 2018-01-25 | 2018-06-12 | 南昌工程学院 | A kind of processing method of country sewage |
| CN207792818U (en) * | 2017-11-23 | 2018-08-31 | 西安建筑科技大学 | A kind of wet land system of removal low carbon-nitrogen ratio sewage total nitrogen |
| CN108911155A (en) * | 2018-07-17 | 2018-11-30 | 江苏省环境科学研究院 | A kind of hybrid constructed wetland system and its method for handling low-concentration heavy metal sewage |
-
2019
- 2019-09-12 CN CN201910861511.5A patent/CN110642458A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040087861A (en) * | 2003-04-09 | 2004-10-15 | 청호환경개발주식회사 | A deposit's processing method and its system |
| CN207792818U (en) * | 2017-11-23 | 2018-08-31 | 西安建筑科技大学 | A kind of wet land system of removal low carbon-nitrogen ratio sewage total nitrogen |
| CN108147624A (en) * | 2018-01-25 | 2018-06-12 | 南昌工程学院 | A kind of processing method of country sewage |
| CN108911155A (en) * | 2018-07-17 | 2018-11-30 | 江苏省环境科学研究院 | A kind of hybrid constructed wetland system and its method for handling low-concentration heavy metal sewage |
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