River water quality purification system using water hammer effect for aeration
By setting up overflow dams, anaerobic tanks and aerobic tanks in the river channel, using the water hammer effect for unpowered aeration, and combining gabion cages and filter screens, the problems of low efficiency and difficult equipment maintenance in traditional sewage treatment are solved, and efficient sewage purification is achieved, reaching Class IV water quality standards and avoiding secondary pollution.
Patent Information
- Application Number
- CN202422623108.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional sewage treatment methods are inefficient and difficult to maintain. Chemical methods may lead to secondary pollution, while physical methods can only treat the symptoms but cannot completely solve the pollution problem.
The water hammer effect is used to set up overflow dams, anaerobic tanks and aerobic tanks in the river channel. Unpowered aeration is achieved through a water hammer pump. The repeated impact of water flow and the compressed air fountain effect are used to force oxygen supply. Combined with gabion stone cages and filter screen structures, three-stage filtration is carried out to achieve efficient sewage purification.
It achieves efficient sewage purification, reaches Class IV water quality standards, reduces the difficulty of equipment maintenance, avoids secondary pollution, and has low costs.
Smart Images
Figure CN223385984U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of water environment management, and in particular relates to a river water purification system utilizing aeration through water hammer effect. Background Art
[0002] In recent years, with the acceleration of rural revitalization, more and more attention has been paid to combining the concept of ecological river management with the improvement of the human living environment.
[0003] Traditional wastewater treatment methods include physical and chemical methods. Physical methods provide a symptomatic treatment, but not a fundamental solution. They fail to effectively degrade wastewater and can only remove silt and algae from the lake bottom. These methods are not only ineffective in eliminating the source of pollution, but also extremely expensive and require periodic repetition.
[0004] Chemical methods primarily involve the addition of coagulants, which destabilize colloidal particles in wastewater, causing them to aggregate into larger particles that sink. Due to the influence of coagulants and environmental conditions, chemical precipitation methods often fail to meet effluent concentration requirements, necessitating further treatment. The resulting sediment must be properly handled and disposed of, otherwise it can cause secondary pollution and, over time, damage the entire ecosystem. Utility Model Content
[0005] The utility model aims to solve the shortcomings of traditional sewage treatment methods such as low treatment efficiency and difficulty in equipment maintenance, and provides a river water purification system using aeration through water hammer effect.
[0006] The utility model provides the following technical solution: a river water purification system utilizing water hammer effect for aeration, wherein a waterfall overflow dam is arranged along the river, an anaerobic tank is arranged upstream of the overflow dam, an aerobic tank is arranged downstream of the overflow dam, a water hammer pump is arranged between the anaerobic tank and the aerobic tank, a buffer cylinder of the water hammer pump is arranged behind the overflow dam, and a drain valve of the water hammer pump is arranged in the aerobic tank to realize water flow aeration function.
[0007] Furthermore, a filter is installed at the water inlet of the overflow dam.
[0008] Furthermore, a trash rack is provided upstream of the overflow dam in the anaerobic tank, and a trash float is provided upstream of the trash rack.
[0009] Furthermore, the bottom of the anaerobic tank is gabion stone cages, the lower layer of the bottom of the aerobic tank and the pool slope are gabion stone cages, and the upper layer of the bottom of the tank is activated sludge.
[0010] Furthermore, the bottom surface of the overflow dam is provided with a concave structure.
[0011] Furthermore, the ground between the overflow dam and the aerobic tank is paved with mortar masonry and gabion cages in sequence, and the pipeline of the water hammer pump is buried under the mortar masonry and gabion cages.
[0012] Furthermore, the bottom of the mortared stones connecting the gabion cage is provided with a convex structure.
[0013] Compared with the prior art, the advantages of this utility model are:
[0014] The utility model discloses a river water purification system utilizing water hammer effect for aeration. A water hammer pump is arranged between an anaerobic tank and an aerobic tank. The water hammer pump operates by the water hammer effect and does not require external power. Sewage treated in the anaerobic tank enters the water hammer pump through the water inlet. Due to the repeated impact of the water flow at the drain valve and the compressed air in the buffer cylinder, the water flow at the drain valve will achieve a fountain effect, thereby achieving aeration, forcing oxygen in the air to be transferred to the water flow, and realizing the effect of unpowered oxygen supply. The sewage that has obtained sufficient dissolved oxygen enters the aerobic tank for further purification, so that the activated sludge in the sewage can breathe, and the organic matter is helped to further decompose into inorganic matter. Finally, the sewage meets the Class IV water quality discharge standard. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the present utility model.
[0016] In the figure: 1-overflow dam; 2-anaerobic tank; 3-aerobic tank; 4-buffer cylinder; 5-drain valve; 6-filter screen; 7-trash rack; 8-gabion cage; 9-activated sludge; 10-concave structure; 11-convex structure; 12-mortar masonry. DETAILED DESCRIPTION
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] like Figure 1 As shown: A river water purification system using water hammer effect aeration, a waterfall overflow dam 1 is set along the river, an anaerobic tank 2 is set upstream of the overflow dam 1, an aerobic tank 3 is set downstream of the overflow dam 1, a water hammer pump is arranged between the anaerobic tank 2 and the aerobic tank 3, a buffer cylinder 4 of the water hammer pump is hidden in the mortar stone behind the overflow dam 1, and a discharge valve 5 of the water hammer pump is set in the aerobic tank 3 to realize the water aeration function.
[0019] Untreated water with a high concentration of pollutants flows into the anaerobic tank 2. In the anaerobic tank 2, heterotrophic bacteria hydrolyze suspended pollutants such as starch, fiber, carbohydrates and soluble organic matter in the sewage into organic acids, decompose large molecular organic matter into small molecular organic matter, and convert insoluble organic matter into soluble organic matter.
[0020] The sewage treated in the anaerobic tank 2 enters the water hammer pump through the water inlet. Due to the repeated impact of the water flow at the drain valve 5 and the compressed air in the buffer cylinder 4, the water flow at the drain valve 5 will achieve a fountain effect, thereby achieving aeration, forcing the oxygen in the air to be transferred to the water flow, and realizing the effect of unpowered oxygen supply.
[0021] The sewage that has obtained enough dissolved oxygen enters the aerobic tank 3 for further purification, so that the activated sludge in the sewage can breathe, helping the organic matter to be further decomposed into inorganic matter, and finally the sewage meets the Class IV water quality discharge standard.
[0022] Inside the anaerobic tank 2, a trash rack 7 is installed upstream of the overflow dam 1. A trash float is installed upstream of the trash rack 7. A filter screen 6 is installed at the water inlet of the overflow dam 1. The trash float, trash rack 7, and filter screen 6 form a three-stage filtration structure to prevent debris from entering the water inlet and clogging the water hammer pump.
[0023] The ground between the overflow dam 1 and the aerobic pool 3 is paved with mortar masonry 12 and gabion stone cages 8 in sequence, and the pipeline of the water hammer pump is buried under the mortar masonry 12 and gabion stone cages 8.
[0024] The bottom of the anaerobic tank 2 is a gabion stone cage 8 , the lower layer of the bottom of the aerobic tank 3 and the pool slope are gabion stone cages 8 , and the upper layer of the bottom is activated sludge 9 .
[0025] To prevent displacement of the overflow dam 1 under water pressure, a concave structure 10 is provided on the bottom surface of the overflow dam 1. This concave structure 10 is an upright isosceles trapezoid. The bottom of the mortar masonry 12 connecting the gabion cages 8 is provided with a convex structure 11. This convex structure 11 is an inverted right-angled trapezoid, with the right angle side of the trapezoid facing the aerobic tank 3.
[0026] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A river water purification system utilizing water hammer aeration, characterized by: A waterfall overflow dam (1) is arranged along the river channel, an anaerobic tank (2) is arranged upstream of the overflow dam (1), an aerobic tank (3) is arranged downstream of the overflow dam (1), a water hammer pump is arranged between the anaerobic tank (2) and the aerobic tank (3), a buffer cylinder (4) of the water hammer pump is arranged behind the overflow dam (1), and a water discharge valve (5) of the water hammer pump is arranged in the aerobic tank (3) to realize the water flow aeration function.
2. The river water purification system utilizing water hammer aeration according to claim 1, characterized in that: A filter screen (6) is installed at the water inlet of the overflow dam (1).
3. A river water purification system utilizing water hammer aeration according to claim 1 or 2, characterized in that: A trash rack (7) is provided upstream of the overflow dam (1) in the anaerobic tank (2), and a trash float is provided upstream of the trash rack (7).
4. The river water purification system utilizing water hammer aeration according to claim 1, characterized in that: The bottom of the anaerobic pool (2) is a gabion stone cage (8), the lower layer of the bottom of the aerobic pool (3) and the pool slope are gabion stone cages (8), and the upper layer of the pool bottom is activated sludge (9).
5. The river water purification system utilizing water hammer aeration according to claim 1, characterized in that: The bottom surface of the overflow dam (1) is provided with a concave structure (10).
6. The river water purification system utilizing water hammer aeration according to claim 1, characterized in that: The ground between the overflow dam (1) and the aerobic pool (3) is paved with mortar masonry (12) and gabion stone cages (8) in sequence, and the pipeline of the water hammer pump is buried under the mortar masonry (12) and gabion stone cages (8).
7. The river water purification system utilizing water hammer aeration according to claim 6, characterized in that: The bottom of the mortared stone (12) connected to the gabion stone cage (8) is provided with an outward convex structure (11).