Ecological treatment device for domestic sewage

Abstract

The utility model discloses a domestic sewage ecological treatment device which comprises a box body, an underflow layer is arranged at the bottom of the box body, a plurality of supporting plates are arranged on the box body on the two sides of the underflow layer, a grid plate is arranged above the supporting plates, and a bottom packing layer, a biological adhesion layer and a vegetation soil layer are sequentially arranged above the grid plate. A water inlet groove is formed in the box body on one side of the vegetation soil layer, a filter cover is arranged on one side, opposite to the water inlet groove, of the underflow layer, and a water outlet is formed in the box body at one end of the filter cover. The domestic sewage treatment device has the beneficial effects that the domestic sewage treatment device is suitable for common domestic sewage such as washing water, vegetable washing water and the like, and can be used for effectively treating the sewage in combination with greening; the sewage treatment device is simple in structure, convenient to install, low in sewage treatment cost and high in treatment efficiency, and the occupied area is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field related to sewage treatment, in particular to an ecological treatment device for domestic sewage. Background Art

[0002] Domestic sewage is wastewater discharged from residents' daily lives, mainly from residential buildings and public buildings, such as residences, government offices, schools, hospitals, shops, public places and toilets of industrial enterprises. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and enteric infectious viruses, etc.). The organic matter in domestic sewage is extremely unstable and easily decomposes to produce a foul odor. Bacteria and pathogens multiply in large numbers with organic matter in domestic sewage as nutrition, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge.

[0003] There are many types of sewage treatment devices on the market, but most of them have low treatment efficiency, are relatively large in size, occupy a large area, and are generally composed of multiple treatment equipment. They are inconvenient to install and have high costs. Utility Model Content

[0004] In view of the above shortcomings, the utility model adopts the following technical solutions:

[0005] A device for ecological treatment of domestic sewage comprises a box body, a subsurface flow layer is arranged at the bottom of the box body, a plurality of support plates are arranged on the box body on both sides of the subsurface flow layer, a grid plate is arranged above the support plate, a bottom filler layer, a biological attachment layer and a vegetation soil layer are arranged in sequence above the grid plate, a water inlet trough is arranged on the box body on one side of the vegetation soil layer, a filter cover is arranged on the side of the subsurface flow layer opposite to the water inlet trough, and a water outlet is arranged on the box body at one end of the filter cover.

[0006] Furthermore, a gauze is laid on the grid plate, and the gauze is arranged at the bottom of the bottom filling layer.

[0007] Furthermore, lower partitions are evenly and staggeredly arranged on the bottom sides of the grid plates on both sides of the support plate and are parallel to the support plate, and slide grooves are arranged on the box body above the two ends of the support plate, and upper partitions are arranged in the slide grooves.

[0008] Furthermore, the filler in the bottom filler layer is pebbles, the filler in the biological attachment layer is river sand, the filler in the vegetation soil layer is a mixed filler of soil and biomass filler in a mass ratio of 2:1, and the biomass filler is a mixed filler of sawdust, branches, and straw.

[0009] Furthermore, the bottom of the water inlet trough is a leaky mesh structure.

[0010] Furthermore, the filter cover is an L-shaped structure formed by bending the filter screen.

[0011] Furthermore, the upper partition separates the bottom filler layer and 1 / 2 of the biological attachment layer 6 .

[0012] The beneficial effects of the utility model are: 1. The utility model is suitable for general domestic sewage such as laundry water, vegetable washing water and other domestic sewage, and the utility model can be combined with greening to effectively treat sewage; 2. The utility model has a simple structure and is easy to install, effectively saving floor space, low sewage treatment cost and high treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0015] In the figure: 1-box, 2-underflow layer, 21-support plate, 3-grid plate, 31-lower partition, 4-gauze, 41-upper partition, 5-bottom filler layer, 6-biological attachment layer, 7-vegetation soil layer, 8-water inlet trough, 9-filter cover, 10-water outlet, 11-chute. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Combination Figure 1 to Figure 2 Shown:

[0018] A domestic sewage ecological treatment device comprises a box body 1, a subsurface flow layer 2 is arranged at the bottom of the box body 1, a plurality of support plates 21 are arranged on the box body 1 on both sides of the subsurface flow layer 2, which are convenient for installing a grid plate 3, a grid plate 3 is arranged above the support plate 21, a bottom filler layer 5, a biological attachment layer 6 and a vegetation soil layer 7 are arranged above the grid plate 3 in sequence, a gauze 4 is laid on the grid plate 3, and the gauze 4 is arranged at the bottom of the bottom filler layer 5 to prevent the filler from being lost.

[0019] A water inlet trough 8 is provided on the box body 1 on one side of the vegetation soil layer 7 for water inlet, and the bottom of the water inlet trough 8 is a leaky mesh structure to facilitate water infiltration into the soil. A filter cover 9 is provided on the side of the subsurface layer 2 opposite to the water inlet trough 8. The filter cover 9 is an L-shaped structure formed by bending the filter screen to filter and prevent solid objects from clogging the water outlet. A water outlet 10 is provided on the box body 1 at one end of the filter cover 9 to facilitate the discharge of treated water.

[0020] The bottom sides of the grid plates 3 on both sides of the support plate 21 are parallel to the support plate 21 and are evenly and staggeredly provided with lower partitions 31. The box body 1 above the two ends of the support plate 21 is provided with a slide groove 11, and an upper partition 41 is arranged in the slide groove 11 for easy installation.

[0021] The filler in the bottom filler layer 5 is pebbles, the filler in the biological attachment layer 6 is river sand, and the filler in the vegetation soil layer 7 is a mixed filler of soil and biomass filler in a ratio of 2:1. The biomass filler is a mixed filler of sawdust, branches, and straw, so that the processing efficiency is improved.

[0022] The lower partition 31 contacts the bottom of the box body 1 to block the water flow, and cooperates with the upper partition 41 to separate the bottom filler layer 5 and 1 / 2 of the biological attachment layer 6, adjust the water flow direction, and ensure that the sewage is deeply treated.

[0023] Working principle: When the device is working, sewage seeps into the soil from the bottom of the water inlet trough, and the water level gradually rises to control the sewage flow rate. Through the cooperation of the upper baffle and the lower baffle, the water flow can flow up and down in a staggered manner, so that the sewage can contact different filler layers alternately, so that it can be fully treated, and finally filtered through the filter cover and flow out from the outlet. According to the structure of the device, it can be simply set in a green nursery.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A domestic sewage ecological treatment device, characterized in that: The invention comprises a box body (1), wherein a subsurface flow layer (2) is provided at the bottom of the box body (1), a plurality of support plates (21) are provided on the box body (1) on both sides of the subsurface flow layer (2), a grid plate (3) is provided above the support plate (21), a bottom filler layer (5), a biological attachment layer (6) and a vegetation soil layer (7) are provided above the grid plate (3) in sequence, a water inlet trough (8) is provided on the box body (1) on one side of the vegetation soil layer (7), a filter cover (9) is provided on the side of the subsurface flow layer (2) opposite to the water inlet trough (8), and a water outlet (10) is provided on the box body (1) at one end of the filter cover (9).

2. The domestic sewage ecological treatment device according to claim 1 is characterized by: A gauze mesh (4) is laid on the grid plate (3), and the gauze mesh (4) is arranged at the bottom of the bottom filling layer (5).

3. The domestic sewage ecological treatment device according to claim 1 is characterized by: Lower baffles (31) are evenly and staggeredly arranged on the bottom sides of the grid plates (3) on both sides of the support plate (21) in parallel with the support plate (21), and a slide groove (11) is provided on the box body (1) above both ends of the support plate (21), and an upper baffle (41) is provided in the slide groove (11).

4. The device for ecological treatment of domestic sewage according to claim 1 is characterized by: The filler in the bottom filler layer (5) is pebbles, and the filler in the biological attachment layer (6) is river sand.

5. The domestic sewage ecological treatment device according to claim 1 is characterized by: The bottom of the water inlet trough (8) is a leaky mesh structure.

6. The domestic sewage ecological treatment device according to claim 1 is characterized by: The filter cover (9) is an L-shaped structure formed by bending the filter screen.

7. The domestic sewage ecological treatment device according to claim 3 is characterized by: The upper partition (41) separates the bottom filler layer (5) and 1 / 2 of the biological attachment layer (6).

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