CN214829340U

CN214829340U - Small-size sewage treatment plant

Info

Publication number: CN214829340U
Application number: CN202121590689.XU
Authority: CN
Inventors: 梁文先; 张孟星; 吴尚泽; 李瑞娟; 王兴达; 冯静
Original assignee: Mcc First Bureau Environmental Technology Co ltd
Current assignee: Mcc First Bureau Environmental Technology Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-11-23
Anticipated expiration: 2031-07-13

Abstract

The application discloses a small sewage treatment device, which comprises a vertical vessel, wherein a partition plate used for buffering sewage and enabling the sewage to form a slow flow and a porous foam plastic interlayer used for preventing air from being dissolved into a water body below and enabling an area below to become an anoxic environment are arranged in the vertical vessel, and the porous foam plastic interlayer is positioned above the partition plate; an aeration mechanism is arranged in the area above the porous foamed plastic interlayer; the vertical vessel is provided with a water inlet at the area below the partition plate, and a water outlet at the area above the porous foam plastic interlayer. The small sewage treatment device vertically distributes the anaerobic zone, the anoxic zone and the aerobic zone, so that the whole occupied area of the small sewage treatment device is small, the sewage treatment and the domestic water reuse of an independent house can be met, and the pollution to the surrounding environment of a living area and a water source and the waste to the water resource are reduced.

Description

Small-size sewage treatment plant

Technical Field

The application relates to the field of sewage treatment equipment, in particular to a small-sized sewage treatment device.

Background

Most of the existing sewage treatment fields in China are industrial sewage treatment, the equipment is large-scale, the sewage treatment is centralized, the standard discharge is realized according to the regulation requirements, and the technology is advanced.

However, with the increasing speed of new rural construction, urban integration and rural urbanization in China, rural population tends to be concentrated, the quality of life of residents is continuously improved, the discharge of domestic sewage in a plurality of villages and towns is increased from scratch and continuously, pollution to rural living environment and downstream water is prominent day by day, the quantity of domestic sewage generated every year is huge, but the treatment rate is very low, most of domestic sewage is directly discharged without treatment, the ecological environment of rural areas is seriously influenced, and the safety of drinking water of local residents is threatened.

The rural water environment becomes a major problem related to the sustainable development of the social economy in China, enhances the treatment of rural domestic sewage, is not only an important content and a component part of new rural construction, but also an important measure for improving the rural ecological environment and preventing and treating agricultural non-point source pollution.

But rural domestic sewage is dispersed, and is difficult to adopt industrial large-scale sewage treatment equipment for centralized treatment, at present, a relatively wide mode is adopted, namely a single-family sewage tank or a temporary sewage storage tank is built, domestic sewage and the like of each family are independently collected, then natural fermentation and sedimentation are carried out on the domestic sewage and the like, and then the domestic sewage and the like are discharged into a ditch and collected into a river for discharge; however, this method has problems of poor treatment effect and low treatment efficiency.

SUMMERY OF THE UTILITY MODEL

In order to improve rural domestic sewage treatment effect, this application provides a small-size sewage treatment plant.

The application provides a small-size sewage treatment plant adopts following technical scheme:

a small sewage treatment device comprises a vertical vessel, wherein a partition plate used for buffering sewage and enabling the sewage to form slow flow and a porous foam plastic interlayer used for preventing air from being dissolved into a lower water body and enabling a lower area to become an anoxic environment are arranged in the vertical vessel, and the porous foam plastic interlayer is positioned above the partition plate; an aeration mechanism is arranged in the area above the porous foamed plastic interlayer; the vertical vessel is provided with a water inlet at the area below the partition plate, and a water outlet at the area above the porous foam plastic interlayer.

By adopting the technical scheme, when the aeration mechanism works, the air is dissolved into the water body above the porous foam plastic interlayer, so that the oxygen content of the area is improved, and the area forms an aerobic area; the porous foam plastic interlayer has a porous structure, so that the disturbance of aeration to water can be effectively prevented, the air dissolving amount of the area below the porous foam plastic interlayer is reduced, the whole area below the porous foam plastic interlayer becomes an anoxic environment, an anoxic area is formed in the area between the partition board and the porous foam plastic interlayer, and an anaerobic area is formed in the area below the partition board.

Therefore, the small sewage treatment device has the advantages that water is fed from the bottom and discharged from the top, and the anaerobic zone, the anoxic zone and the aerobic zone are vertically distributed, so that the small sewage treatment device has small overall occupied area, can meet the sewage treatment and the domestic water reuse of independent houses, and reduces the pollution to the surrounding environment of a residential area and a water source and the waste of water resources; and the aerobic zone is positioned above the anaerobic zone and the anoxic zone, so that the odor emission of the anaerobic zone and the anoxic zone can be effectively inhibited, and the influence on the surrounding environment is reduced.

Optionally, a gap is left between the partition plate and the inner wall of the vertical vessel, and the gap forms a settling port.

By adopting the technical scheme, the small sewage treatment device decomposes macromolecular organic matters into micromolecular organic matters through the anaerobic zone, removes partial COD and plays a role in removing phosphorus; the settling port enables sludge in the sewage to fall back into the anaerobic zone.

Optionally, the partition plate is obliquely arranged, and a gap is reserved between the lower end of the partition plate and the inner wall of the vertical vessel.

By adopting the technical scheme, after the sewage is introduced into the anaerobic zone, the inclined partition plate blocks the sewage, so that the sewage forms slow flow, and the anaerobic time is prolonged; the inclined surface of the clapboard is beneficial to the natural sedimentation of the sludge in the anaerobic zone, and the treatment efficiency of the activated sludge is improved.

Optionally, the vertical vessel is provided with a perforated strainer below the porous foam plastic interlayer, and the porous foam plastic interlayer is fixed on the perforated strainer.

By adopting the technical scheme, the perforated strainer provides an installation foundation for the porous foam plastic interlayer, and the porous foam plastic interlayer can be fixed on the perforated strainer in a binding wire binding mode.

Optionally, a sludge discharge pipeline is introduced into the vertical vessel, and the input end of the sludge discharge pipeline is positioned in the anaerobic zone and close to the position of the sedimentation port.

By adopting the technical scheme, the settled sludge in the vertical vessel is discharged through the sludge discharge pipeline and the sludge discharge pump.

Optionally, the aeration mechanism comprises an aeration pipeline which is communicated with the aerobic zone, the input end of the aeration pipeline is connected with an air source, and the output end of the aeration pipeline is connected with an aerator.

By adopting the technical scheme, when the aeration mechanism works, air is conveyed into the microporous aerator through the pipeline and then is dispersed and escaped in a bubble form, and oxygen is dissolved into water at a gas-liquid interface, so that the oxygen content of an aerobic area is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the vertical device forms an anaerobic system, an anoxic system and an aerobic system through two special clapboards. The sludge naturally flows back, the inclined plate is used as a clapboard, so that the sewage forms slow flow, the anaerobic time is prolonged, the sludge falls naturally to an anaerobic system, and the activated sludge treatment efficiency is improved.

2. The porous foam plastic interlayer plays a role in blocking the disturbance of aeration to water, so that an oxygen-deficient system is formed below the porous foam plastic interlayer, and if the porous foam plastic interlayer is not used, the oxygen-deficient system is not formed.

3. The porous foamed plastic can also be used as a microorganism carrier to accelerate the degradation of sewage.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Description of reference numerals:

1. a vertical vessel; 11. a water inlet; 12. a water outlet; 13. an anaerobic zone; 14. an anoxic zone; 15. an aerobic zone; 16. sinking the mouth; 2. filtering with a screen; 3. a partition plate; 4. a porous foam barrier layer; 41. a fine-toothed comb; 5. an aeration mechanism; 51. an aeration pipeline; 52. an aerator; 6. a sludge discharge pipeline.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses small-size sewage treatment plant. Referring to fig. 1, the small sewage treatment device comprises a vertical vessel 1 with an open top end, a water inlet 11 is arranged at the bottom of the side wall of the vertical vessel 1, a water outlet 12 is arranged at the top of the vertical vessel 1, and a filter screen 2 is arranged on the water outlet 12. The vertical vessel 1 is internally provided with a baffle plate 3 which is distributed in an inclined way and a porous foam plastic interlayer 4 which is distributed horizontally from bottom to top, the inner wall of the vertical vessel 1 which is opposite to the water inlet 11 is set as a water-facing surface, the lower end of the baffle plate 3 is arranged towards the water-facing surface, and a gap is reserved between the lower end of the baffle plate 3 and the part of the inner wall of the vertical vessel 1, so that a sinking port 16 is formed between the lower end of the baffle plate 3 and the water-facing surface; the perforated strainer 41 is horizontally arranged below the porous foam plastic interlayer 4 in the vertical vessel 1, and the porous foam plastic interlayer 4 can be fixed on the perforated strainer 41 in a binding wire binding mode.

The partition board 3 and the porous foam plastic interlayer 4 divide the interior of the vertical vessel 1 into three independent areas, the area above the porous foam plastic interlayer 4 is provided with an aeration mechanism 5, the aeration mechanism 5 comprises an aeration pipeline 51 leading into the vertical vessel 1, the input end of the aeration pipeline 51 is connected with an air blower, the output end is connected with a microporous aerator 52, and the microporous aerator 52 is supported on the porous foam plastic interlayer 4.

When the aeration mechanism 5 works, air is conveyed into the microporous aerator 52 through a pipeline and then diffuses and escapes in the form of bubbles, oxygen is dissolved into water at an air-liquid interface, the oxygen content of the area is improved, and the area forms an aerobic area 16. The top of the vertical vessel 1 can be opened or closed through a cover.

The porous foam plastic interlayer 4 has a porous structure, and in the aeration process of the aeration mechanism 5, the porous structure of the porous foam plastic interlayer 4 can effectively prevent the disturbance of aeration on water, reduce the air inflow amount of the area below the porous foam plastic interlayer 4, enable the whole area below the porous foam plastic interlayer 4 to be an anoxic environment, enable the area between the partition plate 3 and the porous foam plastic interlayer 4 to form an anoxic area 14, and enable the area below the partition plate 3 to form an anaerobic area 13. The water inlet 11 of the vertical vessel 1 is communicated with the anaerobic zone 13, and the water outlet 12 is communicated with the aerobic zone 15.

The anaerobic zone 13 in the vertical vessel 1 mainly has the functions of decomposing macromolecular organic matters into micromolecular organic matters, removing partial COD and simultaneously removing phosphorus; the anoxic zone 14 mainly functions to remove ammonia nitrogen and the like; the main function of the aerobic zone 15 is to further degrade the organic matters degraded in the anaerobic zone 13 and the anoxic zone 14 into carbon dioxide and water by blast aeration treatment in the aerobic zone 15, thoroughly decompose the organic matters, and simultaneously, the phosphorus releasing microorganisms absorb phosphorus in excess so as to remove phosphorus. The porous foam plastic interlayer 4 can also be used as a microorganism carrier to accelerate the degradation of the sewage.

After the sewage is introduced into the anaerobic zone 13, the inclined partition plate 3 blocks the sewage to form slow flow, so that the anaerobic time is increased; the inclined surface of the partition plate 3 is beneficial to the natural sedimentation of the sludge in the anaerobic zone 13, and the treatment efficiency of the activated sludge is improved.

A sludge discharge pipeline 6 communicated to the anaerobic zone 13 is arranged in the vertical vessel 1, and an inlet of the sludge discharge pipeline 6 is arranged close to a sedimentation port 16 of the vertical vessel 1; the sludge discharge pipeline 6 is connected with a sludge discharge pump, and settled sludge in the vertical vessel 1 can be discharged through the sludge discharge pipeline 6 and the sludge discharge pump.

The small-size sewage treatment plant of this embodiment is intake in the bottom, and the top goes out water, with anaerobic zone 13, anoxic zone 14 and the 15 vertical distributions in aerobic zone, makes small-size sewage treatment plant whole area little, can satisfy the sewage treatment in many independent houses and domestic water's reuse, has reduced the pollution to living area surrounding environment, water source and the waste to the water resource.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. A small-size sewage treatment plant which characterized in that: comprises a vertical vessel (1),

a partition plate (3) for buffering sewage and enabling the sewage to form a slow flow and a porous foam plastic interlayer (4) for preventing air from being dissolved into a water body below and enabling the area below to become an anoxic environment are arranged in the vertical vessel (1), and the porous foam plastic interlayer (4) is positioned above the partition plate (3);

an aeration mechanism (5) is arranged in the area above the porous foam plastic interlayer (4);

the vertical utensil (1) is provided with a water inlet (11) at the area below the partition plate (3), and the vertical utensil (1) is provided with a water outlet (12) at the area above the porous foam plastic interlayer (4).

2. The small-sized sewage treatment apparatus according to claim 1, wherein: and a space is reserved between the partition plate (3) and the inner wall of the vertical vessel (1), and the space forms a settling port (16).

3. The small-sized sewage treatment apparatus according to claim 2, wherein: the partition plate (3) is obliquely arranged, and a gap is reserved between the lower end of the partition plate (3) and the inner wall of the vertical vessel (1).

4. The small-sized sewage treatment apparatus according to claim 1, wherein: the vertical vessel (1) is characterized in that a perforated strainer (41) is arranged below the porous foam plastic interlayer (4), and the porous foam plastic interlayer (4) is fixed on the perforated strainer (41).

5. The small-sized sewage treatment apparatus according to claim 2, wherein: the vertical type container is characterized in that a sludge discharge pipeline (6) is introduced into the vertical type container (1), and the input end of the sludge discharge pipeline (6) is positioned in the anaerobic zone (13) and close to the position of the sedimentation port (16).

6. The small-sized sewage treatment apparatus according to claim 1, wherein: the aeration mechanism (5) comprises an aeration pipeline (51) which is communicated with the aerobic zone (15), the input end of the aeration pipeline (51) is connected with an air source, and the output end of the aeration pipeline (51) is connected with an aerator (52).

7. The small-sized sewage treatment apparatus according to claim 1, wherein: the water outlet (12) is provided with a filter screen (2).