CN106630482B

CN106630482B - Sewage treatment device

Info

Publication number: CN106630482B
Application number: CN201710036760.1A
Authority: CN
Inventors: 徐善文; 赵立军; 赵洪珍
Original assignee: Industrial University Environment Co ltd
Current assignee: Industrial University environment Co.,Ltd.
Priority date: 2017-01-18
Filing date: 2017-01-18
Publication date: 2020-07-28
Anticipated expiration: 2037-01-18
Also published as: CN106630482A

Abstract

The invention discloses a sewage treatment device, which comprises a solid filtering tank, a sedimentation tank, a medicament reaction tank and an ecological treatment tank which are sequentially communicated, solid particles in sewage are filtered by the solid filtering tank, the solid filtering tank can filter solids in the sewage and remove floating objects, impurities in the sewage are precipitated by the sedimentation tank, and then the medicament and the sewage are reacted by the medicament reaction tank, the sewage flows to the direction of a second water outlet along a channel between a central cylinder and an isolation cylinder, then flows along a channel between the isolation cylinder and the inner wall of the medicament reaction tank, so that the medicament and the sewage are fully contacted, organic matters in the sewage are treated, the treatment efficiency of the sewage is improved, and finally the sewage is ecologically treated by the ecological treatment tank, so that the purification efficiency of the sewage is effectively improved, and the purification treatment capacity of the whole sewage treatment device for the sewage is improved, high sewage treatment effect, low cost and worth of popularization and application.

Description

Sewage treatment device

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device.

Background

There are two types of water pollution, based on their nature: one is natural pollution; another category is human contamination. The current method is artificial pollution which is a great harm to water. Water pollution can be mainly classified into chemical pollution, physical pollution and biological pollution according to different pollution impurities. In the prior art, a simple, effective and low-cost system for collecting and purifying sewage is not available, at present, along with the improvement of life of people, more and more mechanized products are produced, and the pollution to the environment is more and more serious; at present, industrial wastewater is often generated in mechanical production, the industrial wastewater often contains a large amount of heavy metal solid particles, the discharge of the industrial wastewater causes more and more serious pollution to the living environment of human beings, but the sludge treatment area and the filtering device of the existing sewage treatment machine on the market are separated in arrangement, and sludge generated after the filtering device filters the sewage is required to be treated again by a mud scraper or other devices.

In daily life of people, a lot of waste water and garbage can be produced, and some small towns and towns have imperfect drainage facilities and do not have standard sewage treatment systems, so that sewage seeps into the ground bottom and easily pollutes water resources and soil quality of soil; meanwhile, domestic garbage is randomly stacked, and after rainstorm comes, sewage and domestic garbage flow into rivers or farmlands along with rainwater, so that white pollution is caused, water quality is influenced, and environmental sanitation is also influenced. Especially in cold, high altitude, anoxic, poor and low-income areas, the sewage treatment project cannot be operated and the operation cost is high. Therefore, the sewage treatment is urgently needed to be designed according to the situation of the areas, and the living environment of people is improved.

The invention patent with publication number CN102134145B discloses a sewage treatment device, which comprises a shell, a support plate, composite filler in the shell, a water inlet pipe, a water outlet pipe and an air supply device, wherein the water inlet pipe, the water outlet pipe and the air supply device are connected with the shell outside the shell; an annular upward open type water collecting tank surrounds the central cylinder and is higher than the upper part of the composite filler, one end of the water outlet pipe is connected with the water collecting tank, and the other end of the water outlet pipe penetrates through the shell and is led out; a central guide cylinder is arranged below the supporting plate, the upper end and the lower end of the central guide cylinder are both provided with openings, the upper end of the central guide cylinder is connected with the supporting plate, a dosing device is arranged in the central guide cylinder, and a dosing pipe connected with the dosing device penetrates through the central cylinder upwards and is led out from the upper part of the shell to be connected with external dosing equipment; the composite filler in the shell surrounds the central cylinder and is divided into an upper layer and a lower layer which are supported by the supporting plate. However, the sewage treatment device adopts a mechanical mode to mix and vibrate the sewage and the medicament in the device to treat the sewage, so that the device is complex, the cost is high, and the sewage treatment efficiency is low.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a sewage treatment device which can effectively and conveniently treat sewage and has high sewage treatment efficiency and low cost.

In order to solve the technical problem, the technical scheme of the sewage treatment device is that the sewage treatment device comprises a solid filtering tank, a sedimentation tank, a medicament reaction tank and an ecological treatment tank which are sequentially communicated, a sewage inlet pipe is arranged above the solid filtering tank, a discharge pipe is arranged at the lower part of the solid filtering tank, a stepped filtering plate is arranged in the solid filtering tank and consists of L-shaped filtering plates which are connected up and down, the water outlet of the sewage inlet pipe is arranged above the uppermost L-shaped filtering plate, an overflow groove is formed in the center of the sedimentation tank in a surrounding mode, the top of the overflow groove is higher than the top of a tank body of the sedimentation tank, the discharge pipe of the solid filtering tank is communicated with the overflow groove through a pipeline, a central cylinder, an isolation cylinder which is concentrically arranged with the central cylinder and a vertical partition plate which is arranged between the outer wall of the central cylinder and the inner wall of the medicament reaction tank are arranged in a penetrating mode, two ends of the vertical partition plate are respectively fixedly connected with the outer wall of the central cylinder and the inner wall of the central cylinder, the medicament reaction tank, the center of the medicament reaction tank is arranged in the center, a first partition plate is arranged on the center of the medicament reaction tank, a second partition plate is arranged on the center of the water outlet pipe, a discharge port of the ecological treatment tank, a discharge pipe is arranged on the bottom of the ecological treatment tank, a discharge pipe of the ecological treatment tank, a discharge pipe is arranged on the ecological treatment tank, and a discharge pipe, a discharge port of the ecological treatment tank, a discharge pipe, two sides of the ecological treatment tank.

As an improvement of the technical scheme, the bottom of the ecological treatment tank is also provided with an aeration pipe, and the aeration pipe is connected with a blower outside the ecological treatment tank through a blast pipe.

As an improvement of the technical scheme, the filler layer is divided into a gravel layer, a ceramic particle layer and a quartz sand layer from top to bottom.

Furthermore, a sludge discharge pump is arranged at the bottom of the medicament reaction tank, the output end of the sludge discharge pump is communicated with a sludge discharge pipe, and the output end of the sludge discharge pipe is communicated with a sludge concentration tank.

Further, the top of the overflow launder is curved towards the center of the sedimentation tank.

As an improvement of the above technical solution, the first water outlets are a plurality of and evenly spaced in the vertical direction of the sidewall of the central cylinder, the second water outlets are a plurality of and evenly spaced in the vertical direction of the sidewall of the isolation cylinder, and the first water outlets and the second water outlets are arranged close to the vertical partition plate.

As an improvement of the above technical scheme, a stirrer is arranged in the central cylinder, the stirrer comprises a motor located above the central cylinder and a rotating shaft rotationally connected with the motor, the rotating shaft penetrates through a cavity of the central cylinder, and stirring blades are uniformly arranged on the rotating shaft at intervals.

Compared with the prior art, the sewage treatment device has the advantages that solid particles in sewage are filtered through the solid filtering tank, the solid in the sewage can be filtered through the solid filtering tank, floating objects can be removed through the solid filtering tank, the L type filtering plates are connected up and down to form the ladder type filtering plates which have the function of multi-stage filtering, the ladder type filtering plates can enable the sewage to stay on more surfaces, the filtering effect is further improved, then sundries in the sewage are precipitated through the sedimentation tank, then the medicament reacts with the sewage through the medicament reaction tank, the sewage flows to the direction of the second water outlet along the channel between the central cylinder and the isolation cylinder, then flows along the channel between the isolation cylinder and the inner wall of the medicament reaction tank, the medicament is fully contacted with the sewage, organic matters in the sewage are treated, the sewage treatment efficiency is improved, finally the sewage is subjected to ecological treatment through the ecological treatment tank, the surface area of water body biological contact oxidation degradation pollutants is increased through aquatic plants, a large amount of enzymes can be secreted, the decomposition of pollutants is accelerated, the sewage treatment effect of effectively enhancing the sewage treatment effect of sewage treatment can be effectively improved, the sewage treatment device is worthy of popularization and application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

FIG. 1 is a schematic structural view of a preferred embodiment of the sewage treatment apparatus of the present invention.

FIG. 2 is a schematic view showing the construction of a chemical reaction tank of the sewage treatment apparatus of the present invention.

FIG. 3 is a schematic view showing the construction of a central cylinder and a stirrer of the sewage treatment apparatus of the present invention.

Reference numerals: 10. a solids filtration tank; 11. a sewage inlet pipe; 12. a discharge pipe; 13. a stepped filter plate; 20. a sedimentation tank; 21. an overflow trough; 30. a reagent reaction tank; 31. a central cylinder; 32. an isolation cylinder; 33. a vertical partition; 34. a first water outlet; 35. a second water outlet; 36. a medicine feeding pipe; 40. an ecological treatment tank; 41. a filler layer; 42. an aquatic plant; 43. an aeration pipe; 44. a blower; 50. a sludge concentration tank; 51. a motor; 52. a rotating shaft; 53. a stirring blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in FIG. 1, the sewage treatment device of the present invention is a structural schematic diagram of a preferred embodiment of the sewage treatment device of the present invention, the sewage treatment device of the present invention comprises a solid filtering tank 10, a sedimentation tank 20, a reagent reaction tank 30 and an ecological treatment tank 40 which are sequentially communicated, a sewage inlet pipe 11 is arranged above the solid filtering tank 10, a discharge pipe 12 is arranged at the lower part of the solid filtering tank 10, a stepped filtering plate 13 is arranged in the solid filtering tank 10, the stepped filtering plate 13 is formed by connecting a plurality of L-shaped filtering plates up and down, the water outlet of the sewage inlet pipe 11 is positioned above the uppermost L-shaped filtering plate, the solid filtering tank 10 can filter solids in sewage and remove floating materials, the stepped filtering plate 13 formed by connecting the solid filtering tank up and down has a multi-stage filtering function, the stepped filtering plate 13 can increase the contact area of sewage and the filtering plate 13, prolong the residence time of sewage, further improve the filtering effect, and the sewage treatment tank for removing floating materials has strong pertinence, easy operation and low cost, and the filtering plate 13 can not stop the operation of the filtering plate 10 due to the accumulated solid materials.

The central position of the sedimentation tank 20 of the present invention is surrounded with an overflow trough 21, the top of the overflow trough 21 is higher than the top of the sedimentation tank 20, the discharge pipe 12 of the solid filtering tank 10 is communicated with the overflow trough 21 through a pipeline, preferably, the top of the overflow trough 21 is bent towards the central position of the sedimentation tank, when the overflow trough 21 is full of water, the water will flow down along the wall surface of the overflow trough 21 and will not directly fall into the sedimentation tank 20, the sedimentation tank 20 is based on the principle of gravity, when the sewage stays in the sedimentation tank 20, the impurities can be precipitated due to the gravity.

The medicament reaction tank 30 is internally provided with a central cylinder 31, an isolation cylinder 32 which is concentric with the central cylinder 31 and a vertical clapboard 33 which is positioned between the outer wall of the central cylinder 31 and the inner wall of the medicament reaction tank 30, the vertical clapboard 33 is penetrated through the isolation cylinder 32, two ends of the vertical clapboard 33 are respectively and fixedly connected with the outer wall of the central cylinder 31 and the inner wall of the medicament reaction tank 30, the central cylinder 31 is positioned at the center of the medicament reaction tank 30, the central cylinder 31 is provided with a first water outlet 34, the isolation cylinder 32 is provided with a second water outlet 35, the first water outlet 34 and the second water outlet 35 are respectively positioned at two sides of the vertical clapboard 33, the top of the sedimentation tank 20 is communicated with the bottom of the central cylinder 31 through a pipeline, the bottom of the central cylinder 31 is also provided with a medicament feeding pipe 36, and medicament is added into the medicament reaction tank 30 through the medicament feeding pipe 36, so that the reagent is mixed and reacted with the sewage to treat the organic matters in the sewage and improve the sewage treatment efficiency. In addition, the first water outlets 34 are distributed at equal intervals in the vertical direction of the side wall of the central cylinder 31, the sewage entering the central cylinder 31 flows out of the first water outlets 34, the sewage is blocked by the vertical partition 33 and flows along the channel between the central cylinder 31 and the isolating cylinder 32 to the direction of the second water outlets 35, the second water outlets 35 are distributed at equal intervals in the vertical direction of the side wall of the isolating cylinder 32, the first water outlets 34 and the second water outlets 35 are arranged close to the vertical partition 33, the sewage flows out of the second water outlets 35 and then flows along the channel between the isolating cylinder 32 and the inner wall of the reagent reaction tank 30, as shown by the arrows in fig. 2, the direction of the sewage flows, and the reagent and the sewage are fully contacted through the flow of the sewage, thereby effectively improving the purification efficiency of the sewage.

The ecological treatment tank 40 of the invention is internally provided with a packing layer 41 and aquatic plants 42 positioned on the packing layer 41, the packing layer 41 is divided into a gravel layer, a ceramsite layer and a quartz sand layer from top to bottom, the gravel layer, the ceramsite layer and the quartz sand layer can be used for planting the aquatic plants and can also be used as microorganism growth carriers, the top of the medicament reaction tank 30 is provided with a discharge port, the discharge port and the second water outlet 35 are respectively positioned at two sides of the vertical partition plate 33, sewage in a channel between the isolation cylinder 32 and the inner wall of the medicament reaction tank 30 flows out through the discharge port, the discharge port is communicated with the bottom of the ecological treatment tank 40 through a water outlet pipe, the bottom of the ecological treatment tank 40 is also provided with an aeration pipe 43, the aeration pipe 43 is connected with a 44 positioned outside the ecological treatment tank through an air blower, and the bottom of the ecological treatment tank 40 is aerated through the aeration pipe 43, the ecological treatment pool 40 is oxygenated, the aquatic plant 42 adsorbs and absorbs nutrient salts such as nitrogen and phosphorus in the water body through the root system to supply for self growth, the water quality can be improved, the surface area of pollutants is degraded by biological contact oxidation of the water body through the root system of the aquatic plant, a large amount of enzyme can be secreted, and the decomposition of pollutants in the sewage is accelerated.

In an embodiment of the present invention, a sludge pump is further disposed at the bottom of the chemical reaction tank 30, an output end of the sludge pump is communicated with a sludge discharge pipe, an output end of the sludge discharge pipe is communicated with a sludge concentration tank 50, sludge generated in the chemical reaction tank 30 is discharged into the sludge concentration tank 50 through the sludge discharge pump, and the sludge concentration tank 50 is configured to reduce a water content of the sludge.

In another embodiment of the present invention, preferably, as shown in fig. 3, an agitator is disposed in the central cylinder 31, the agitator includes a motor 51 located above the central cylinder 31, and a rotating shaft 52 rotatably connected to the motor 51, the rotating shaft 52 is disposed through the cavity of the central cylinder 31, and stirring blades 53 are disposed on the rotating shaft 52 at uniform intervals, so that under the action of the motor 51 and the stirring blades 53, a more sufficient reaction between the sewage and the medicament is promoted.

The sewage treatment device firstly filters solid particles in sewage through the solid filtering tank 10, the solid filtering tank 10 can filter solids in the sewage and remove floating materials, the L-type filtering plate 13 formed by connecting the upper part and the lower part of the filtering plate has the function of multi-stage filtering, the stepped filtering plate 13 can increase the contact area of the sewage and the filtering plate, prolong the retention time of the sewage and further improve the filtering effect, then the impurities in the sewage are precipitated through the sedimentation tank 20, then the medicament reacts with the sewage through the medicament reaction tank 30, the sewage flows along the channel between the central cylinder 31 and the isolation cylinder 32 to the direction of the second water outlet 35, then flows along the channel between the isolation cylinder 32 and the inner wall of the medicament reaction tank 30, so that the medicament is fully contacted with the sewage, organic matters in the sewage are treated, the sewage treatment efficiency is improved, finally the sewage is subjected to ecological treatment through the ecological treatment tank 40, the surface area of pollutants is increased through the aquatic plants 42, a large amount of enzymes can be secreted, the decomposition of pollutants is accelerated, the sewage treatment effect is effectively improved, and the sewage purification efficiency is improved, thereby the sewage treatment device is popularized and the sewage treatment cost is low.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. A sewage treatment device comprises a solid filtering tank (10), a sedimentation tank (20), a medicament reaction tank (30) and an ecological treatment tank (40) which are sequentially communicated, a sewage inlet pipe (11) is arranged above the solid filtering tank (10), a discharge pipe (12) is arranged at the lower part of the solid filtering tank (10), the sewage treatment device is characterized in that a stepped filtering plate (13) is arranged in the solid filtering tank (10), the stepped filtering plate (13) is formed by connecting a plurality of L-shaped filtering plates up and down, the water outlet of the sewage inlet pipe (11) is arranged above an uppermost L-shaped filtering plate, a central position of the sedimentation tank (20) is surrounded by a stepped filtering plate (21), the top of an overflow groove (21) is higher than the top of the sedimentation tank, the top of the overflow groove (21) is bent towards the central position of the sedimentation tank, the discharge pipe (12) of the solid filtering tank (10) is communicated with the overflow groove (21) through a pipeline, the water inlet of the discharge pipe (12) is positioned below a L-shaped overflow groove (31), a central discharge hole of the discharge pipe (31) of the overflow groove (12) is positioned below a lowermost L-shaped cylindrical drum (31), a central baffle (31) of the medicament reaction tank, a second cylindrical drum (31) is arranged at a central baffle (31), a central baffle plate (31) and a central baffle (31), a central baffle (31) of a second baffle (31) is arranged at a central baffle (31), a central baffle plate (32) and a central baffle plate (32), a central baffle plate (31), a central baffle plate (32) and a central baffle plate (32), a central baffle plate (32) and a central baffle plate (32) which is arranged at two baffle plate (31), the central baffle plate (32) and a central baffle plate, a central baffle plate (32), the baffle plate (31), the baffle plate (32) and a central baffle plate (32) are arranged at two baffle plate, a central baffle plate (31), the baffle plate (32) are arranged at two baffle plate (31), the baffle plate (32) and a central baffle plate (32) are arranged at two baffle plate (32) and a central baffle plate (32), the baffle plate (34, a central baffle plate (34, the baffle plate (.

2. The sewage treatment apparatus of claim 1, wherein: the bottom of the medicament reaction tank (30) is provided with a sludge discharge pump, the output end of the sludge discharge pump is communicated with a sludge discharge pipe, and the output end of the sludge discharge pipe is communicated with a sludge concentration tank (50).