CN116216938A - Low-energy-consumption easy-maintenance small rural sewage treatment device in alpine region - Google Patents

Low-energy-consumption easy-maintenance small rural sewage treatment device in alpine region Download PDF

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Publication number
CN116216938A
CN116216938A CN202310264579.1A CN202310264579A CN116216938A CN 116216938 A CN116216938 A CN 116216938A CN 202310264579 A CN202310264579 A CN 202310264579A CN 116216938 A CN116216938 A CN 116216938A
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China
Prior art keywords
unit
low
sewage treatment
small
filter material
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CN202310264579.1A
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Chinese (zh)
Inventor
佟洪金
陈杰
林茂
杨康年
芮永峰
纪昱彤
周玉杰
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SICHUAN ACADEMY OF ENVIRONMENTAL SCIENCES
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SICHUAN ACADEMY OF ENVIRONMENTAL SCIENCES
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Priority to CN202310264579.1A priority Critical patent/CN116216938A/en
Publication of CN116216938A publication Critical patent/CN116216938A/en
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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
    • C02F3/30—Aerobic and anaerobic processes
    • 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
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • 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)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention discloses a low-energy-consumption easy-maintenance small rural sewage treatment device in alpine regions, which comprises a water inlet adjusting unit, a reaction treatment unit and a drainage unit; the water inlet adjusting unit is used for hydrolyzing and acidizing the pollutants with larger molecular weight in the sewage filtered by the grille into pollutants with smaller molecular weight; the reaction treatment unit is used for removing pollutants in the sewage sent by the water inlet adjusting unit; the drainage unit is used for draining the sewage treated by the reaction treatment unit into surrounding soil. Compared with the prior art, the invention has extremely low energy consumption, does not have an aeration fan, can realize reoxygenation through natural pressure difference, has an aerobic and anaerobic alternating function, and can effectively remove pollutants such as COD, ammonia nitrogen and the like in sewage.

Description

Low-energy-consumption easy-maintenance small rural sewage treatment device in alpine region
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a small rural sewage treatment device with low energy consumption and easy maintenance in alpine regions.
Background
The severe cold region often has obvious weather difference in summer and winter and large day and night temperature difference, and is accompanied with unfavorable environmental conditions such as high altitude, low air pressure, thin air, excessively low temperature in winter and the like, so that various sewage biological treatment processes on the market are often difficult to normally operate.
On one hand, microorganisms in the system are difficult to decompose pollutants normally through vital activities due to temperature, air pressure and the like; on the other hand, the great difference of environmental temperature between winter and summer, and the fact that the tap is normally opened in winter to prevent the water supply and drainage pipe from freezing, so that the sewage concentration is too low, the sewage treatment facilities adopting the conventional process which can normally operate in summer are often difficult to normally operate in winter. Thus, there are a number of conditions where the built equipment is not operational and "sun-shine".
In addition, the areas are often extensive, the economic level is relatively lagged, and the facility management level is relatively low, so that the operation and maintenance cost and daily management of facility equipment become a big problem for restricting the normal operation of the facility. Therefore, the low-energy consumption and easy-maintenance rural sewage treatment technology suitable for the alpine region becomes a difficult problem to overcome.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a small rural sewage treatment device with low energy consumption and easy maintenance in alpine regions, which has extremely low energy consumption.
The aim of the invention is realized by the following technical scheme:
the low-energy-consumption easy-maintenance small rural sewage treatment device in the alpine region comprises a water inlet adjusting unit, a reaction treatment unit and a drainage unit;
the water inlet adjusting unit is used for hydrolyzing and acidizing the pollutants with larger molecular weight in the sewage filtered by the grille into pollutants with smaller molecular weight;
the reaction treatment unit is used for removing pollutants in the sewage sent by the water inlet adjusting unit;
the drainage unit is used for draining the sewage treated by the reaction treatment unit into surrounding soil.
Further, a filter material layer is arranged in the reaction treatment unit, and the particle size of a filter material of the filter material layer is gradually increased from top to bottom.
Further, the filter material is fine sand, middle sand, coarse sand, small-particle gravel, medium-particle gravel and large-particle gravel from top to bottom in sequence.
Further, the average particle diameters of the fine sand, the middle sand, the coarse sand, the small particle gravel, the medium and large particle gravel are as follows: 0.125mm-0.25mm, 0.25mm-0.5mm, 0.5mm-1mm, 3cm-5cm, 5cm-10cm, 10cm-20cm, 20cm-40cm.
Further, the thicknesses of the fine sand, the middle sand, the coarse sand, the small-particle gravel, the medium-particle gravel and the large-particle gravel are 10cm, 15cm, 20cm and 40cm in sequence.
Further, a horizontal air distribution pipe is arranged in the reaction treatment unit and is arranged at the bottom of the filter material layer, and the horizontal air distribution pipe is communicated with air through a vertical air distribution pipe;
the bottom of the filter material layer is also provided with an impermeable water tank;
the drainage unit is at least one drainage pipe communicated with the impermeable water tank and soil.
Further, the vertical air distribution pipe is connected with an air guide pipe arranged on the ground, and a windmill device is arranged at the top of the air guide pipe;
the windmill device is used for causing air flow disturbance and forming positive pressure or negative pressure in the induced air pipe.
The beneficial effects of the invention are as follows:
1) Compared with the prior art, the invention has extremely low energy consumption, does not have an aeration fan, can realize reoxygenation through natural pressure difference, has an aerobic and anaerobic alternating function, and can effectively remove pollutants such as COD, ammonia nitrogen and the like in sewage.
2) The invention has the advantages of extremely low engineering cost, investment saving, simple operation and maintenance, good effect and the like compared with the common proposal.
3) The invention is suitable for treating domestic sewage in small scale by using the sewage in high and cold areas. The specific scale of application is related to the footprint. The larger the occupied area is, the better the treatment effect is.
4) The invention has no power, low operation cost and simple daily operation and maintenance, is suitable for underdevelopment of economy and is suitable for the current situation of no technicians; the facility is arranged below an underground frozen soil layer, can prevent low-temperature icing in winter, and can effectively protect the normal operation of microorganisms; the ground of the sewage treatment facility can be used for planting crops in normal yield, and the land use is not affected; the drainage is infiltrated and diffused through the land, so that surface runoff is not generated, the water quantity is small, the land area is large, and the pollution to the underground water is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a small rural sewage treatment device with low energy consumption and easy maintenance in a alpine region in an embodiment of the invention;
FIG. 2 is a schematic diagram of a low energy consumption easy maintenance small rural sewage treatment plant in a alpine region with a windmill device;
in the figure, 1, a water inlet adjusting unit; 2. a reaction processing unit; 3. a drainage unit; 4. a filter material layer; 5. a horizontal air distribution pipe; 6. a vertical air distribution pipe; 7. a water impermeable tank; 8. a water distribution pipe; 9. an air guiding pipe; 10. a wind turbine device.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
examples:
as shown in fig. 1 and 2, a low-energy-consumption easy-maintenance small rural sewage treatment device in alpine regions comprises a water inlet adjusting unit 1, a reaction treatment unit 2 and a drainage unit 3;
the water inlet adjusting unit 1 is used for hydrolyzing and acidizing the larger molecular weight pollutants in the sewage filtered by the grille into smaller molecular weight pollutants;
the reaction treatment unit 2 is used for removing pollutants in the sewage sent by the inflow water regulating unit 1; wherein, the water inlet adjusting unit 1 sends sewage into the reaction treatment unit 2 through the water distribution pipe 8.
The drainage unit 3 is used for draining the sewage treated by the reaction treatment unit 2 into surrounding soil.
The reaction treatment unit 2 is internally provided with a filter material layer 4, and the particle size of the filter material layer 4 is gradually increased from top to bottom.
The filter material is fine sand, middle sand, coarse sand, small particle gravel, medium and small particle gravel, medium particle gravel and large particle gravel from top to bottom.
The average particle diameters of the fine sand, the middle sand, the coarse sand, the small particle gravel, the medium-sized particle gravel and the large particle gravel are as follows in sequence: 0.125mm-0.25mm, 0.25mm-0.5mm, 0.5mm-1mm, 3cm-5cm, 5cm-10cm, 10cm-20cm, 20cm-40cm.
The thicknesses of the fine sand, the middle sand, the coarse sand, the small-particle gravel, the medium-particle gravel and the large-particle gravel are 10cm, 15cm, 20cm and 40cm in sequence.
A horizontal air distribution pipe 5 is arranged in the reaction treatment unit 2, the horizontal air distribution pipe 5 is arranged at the bottom of the filter material layer 4, and the horizontal air distribution pipe 5 is communicated with air through a vertical air distribution pipe 6;
the bottom of the filter material layer 4 is also provided with a water-impermeable tank 7;
the drainage unit 3 is at least one drainage pipe which is communicated with the impermeable water tank 7 and soil.
As shown in fig. 2, the vertical air distribution pipe 6 is connected with an air guiding pipe 9 arranged on the ground, and a windmill device 10 is arranged at the top of the air guiding pipe 9;
the windmill device 10 is used for causing air flow disturbance, and positive pressure or negative pressure is formed in the induced draft tube 9. The windmill means may in particular be, but not limited to, a roof ventilator.
Working principle: (1) Domestic sewage is fed in from the water outlet of the septic tank, mixed with domestic ash water, and filtered by the grid well, and then enters the water inlet regulating unit 1 (regulating tank) in the grid well, and plays a role in anaerobic acidification in the water inlet regulating unit 1, so that the pollutant with larger molecular weight is hydrolyzed and acidified into pollutant with smaller molecular weight, and the subsequent biodegradation is facilitated.
(2) After domestic sewage enters the reaction treatment unit 2 and is uniformly distributed by the water distribution pipe 8, the filter material layer 4 of the water inlet reaction tank is filtered, the filter material in the reaction tank is arranged according to the hierarchical arrangement, the bottom of the filter material layer 4 is provided with a horizontal air distribution pipe 5 of the reaction tank, air can smoothly circulate at the bottom of the filter material layer 4 through the horizontal air distribution pipe 5, and a vertical air distribution pipe 6 is additionally arranged, so that the reaction tank and the ground are communicated and exchanged by air. The water-impermeable tank 7 is positioned at the lower end of the air distribution pipe, and sewage enters the water-impermeable tank 7 after being filtered and reacted by a filter material and is discharged into the surrounding land through a drain pipe to carry out land infiltration treatment.
(3) And after the sewage is discharged from the water-impermeable tank 7 of the reaction treatment unit 2, the treated sewage is slowly diffused into the surrounding soil in an unsaturated flow state through the capillary infiltration of the surrounding soil.
The vertical air distribution pipe 6 is communicated with the horizontal air distribution pipe 5, penetrates through the filtering material layer 4 and the soil covering layer upwards, is connected with a ground induction pipe, has a pipe height of more than 2 meters and a diameter of 110mm, is provided with a windmill device 10 at the top, is rotated by wind blowing, and forms positive pressure or negative pressure in the air induction pipe 9 by means of air flow disturbance caused by rotation of windmill blades, so that air in the reaction tank is promoted to be updated and discharged outwards. The arrangement of the horizontal exhaust pipe and the vertical exhaust pipe plays a role in promoting the gas exchange between the reactor and the outside in the whole system, so that microorganisms attached to the filter material layer 4 can reoxygenate to a certain degree, and an operation mechanism of aerobic and anaerobic alternate reactions is formed in the reaction tank.
Compared with the prior art, the invention has extremely low energy consumption, does not have an aeration fan, can realize reoxygenation through natural pressure difference, has an aerobic and anaerobic alternating function, and can effectively remove pollutants such as COD, ammonia nitrogen and the like in sewage.
The invention has the advantages of extremely low engineering cost, investment saving, simple operation and maintenance, good effect and the like compared with the common proposal.
The invention is suitable for treating domestic sewage in small scale by using the sewage in high and cold areas. The specific scale of application is related to the footprint. The larger the occupied area is, the better the treatment effect is.
The invention has no power, low operation cost and simple daily operation and maintenance, is suitable for underdevelopment of economy and is suitable for the current situation of no technicians; the facility is arranged below an underground frozen soil layer, can prevent low-temperature icing in winter, and can effectively protect the normal operation of microorganisms; the ground of the sewage treatment facility can be used for planting crops in normal yield, and the land use is not affected; the drainage is infiltrated and diffused through the land, so that surface runoff is not generated, the water quantity is small, the land area is large, and the pollution to the underground water is avoided.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims (7)

1. The utility model provides a small-size rural sewage treatment plant of easy maintenance of low energy consumption in alpine region which characterized in that: comprises a water inlet adjusting unit, a reaction processing unit and a drainage unit;
the water inlet adjusting unit is used for hydrolyzing and acidizing the pollutants with larger molecular weight in the sewage filtered by the grille into pollutants with smaller molecular weight;
the reaction treatment unit is used for removing pollutants in the sewage sent by the water inlet adjusting unit;
the drainage unit is used for draining the sewage treated by the reaction treatment unit into surrounding soil.
2. The low-energy easy-maintenance small rural sewage treatment device in alpine regions according to claim 1, wherein: the reaction treatment unit is internally provided with a filter material layer, and the particle size of a filter material of the filter material layer is gradually increased from top to bottom.
3. The low-energy easy-maintenance small rural sewage treatment device in alpine regions according to claim 2, wherein: the filter material is fine sand, middle sand, coarse sand, small particle gravel, medium and small particle gravel, medium particle gravel and large particle gravel from top to bottom.
4. A low energy consumption easy maintenance small rural sewage treatment plant according to claim 3, wherein: the average particle diameters of the fine sand, the middle sand, the coarse sand, the small particle gravel, the medium-sized particle gravel and the large particle gravel are as follows in sequence: 0.125mm-0.25mm, 0.25mm-0.5mm, 0.5mm-1mm, 3cm-5cm, 5cm-10cm, 10cm-20cm, 20cm-40cm.
5. The low-energy-consumption easy-maintenance small rural sewage treatment device in alpine regions according to claim 4, wherein: the thicknesses of the fine sand, the middle sand, the coarse sand, the small-particle gravel, the medium-particle gravel and the large-particle gravel are 10cm, 15cm, 20cm and 40cm in sequence.
6. A low energy consumption easy maintenance small rural sewage treatment plant according to claim 3, wherein: a horizontal air distribution pipe is arranged in the reaction treatment unit and is arranged at the bottom of the filter material layer, and the horizontal air distribution pipe is communicated with air through a vertical air distribution pipe;
the bottom of the filter material layer is also provided with an impermeable water tank;
the drainage unit is at least one drainage pipe communicated with the impermeable water tank and soil.
7. The low-energy easy-maintenance small rural sewage treatment device in alpine regions according to claim 6, wherein: the vertical air distribution pipe is connected with an air guide pipe arranged on the ground, and a windmill device is arranged at the top of the air guide pipe;
the windmill device is used for causing air flow disturbance and forming positive pressure or negative pressure in the induced air pipe.
CN202310264579.1A 2023-03-14 2023-03-14 Low-energy-consumption easy-maintenance small rural sewage treatment device in alpine region Pending CN116216938A (en)

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Application Number Priority Date Filing Date Title
CN202310264579.1A CN116216938A (en) 2023-03-14 2023-03-14 Low-energy-consumption easy-maintenance small rural sewage treatment device in alpine region

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CN116216938A true CN116216938A (en) 2023-06-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117401824A (en) * 2023-12-14 2024-01-16 四川省生态环境科学研究院 Energy-saving sewage treatment device in alpine region

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117401824A (en) * 2023-12-14 2024-01-16 四川省生态环境科学研究院 Energy-saving sewage treatment device in alpine region
CN117401824B (en) * 2023-12-14 2024-02-27 四川省生态环境科学研究院 Energy-saving sewage treatment device in alpine region

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