CN205367888U - Artificial wetland system - Google Patents

Abstract

The utility model provides a constructed wetland system, comprising: a constructed wetland system, which is characterized in that it includes N-level constructed wetland units connected in series, wherein N≥2, the lower part of the constructed wetland unit has a water outlet and the upper part has a water inlet, There is a grid pool between two adjacent artificial wetland units, and the entrance and exit are respectively set on both sides of the grid pool. The outlet of the previous artificial wetland unit is connected to the entrance of the grid pool, and the outlet of the grid pool is connected to the next level The water inlet of the constructed wetland unit; the inside of the grid pool is equipped with a grid; the bottom of the grid pool is equipped with a mud discharge bucket, and a sludge discharge pipeline for sludge discharge is provided, and one end of the sludge discharge pipeline is provided with a mud suction port , The mud suction port is located above the mud discharge hopper, and the other end of the mud discharge pipeline is connected to the blower. The constructed wetland system provided by the utility model can classify and construct different wetland units on different plots according to the local topography, topography, and area, and at the same time avoid some large impurities from blocking the constructed wetland pool.

Description

Constructed wetland system

technical field

The utility model belongs to the field of water treatment, in particular to an artificial wetland system.

Background technique

Constructed wetland is a ground similar to swampland that is artificially constructed and operated under control. Sewage and sludge are distributed to the artificially constructed wetland in a controlled manner. When sewage and sludge flow in a certain direction, they are mainly used It is a technology for treating sewage and sludge through the triple synergy of physics, chemistry and biology of soil, artificial medium, plants and microorganisms.

As a sewage ecological treatment technology with low investment, low energy consumption and high removal rate of organic pollutants, nitrogen and phosphorus, constructed wetland has shown great development potential in sewage restoration. Constructed wetlands have been used to treat various unclean water bodies, including domestic sewage, livestock and poultry manure, tailings effluent, industrial sewage, agricultural wastewater, landfill leachate, urban storm runoff, eutrophic lake water, etc. . In northern my country's northern towns, rural areas, and tourist attractions such as catering and domestic sewage, the application of vertical flow constructed wetland technology meets the requirements of low investment. It is an economically feasible technology suitable for the construction of rural environment in our country, and it will have a very demonstrative effect on the construction of new countryside that is currently being implemented in our country.

One of the difficulties in the application design of constructed wetlands is the problem of land occupation. In practical application, whether it is in plain areas or in mountainous and hilly areas with large height differences, it is often encountered that there is not enough area to construct artificial wetlands in the same place. Constructed wetland technology is often excluded in the process of process comparison and selection only because the provided land area does not meet the requirements of wetland construction, and its application cannot be fully utilized due to the low energy consumption of wetlands. In addition, the existing constructed wetlands are in operation The problem of clogging often occurs in the sewage treatment system, which has seriously restricted its promotion and application in the field of sewage treatment. The main reason is that the medium in the existing constructed wetland treatment system is sand and other high-density filter materials, which are accumulated in the wetland. After two years, the blockage of the soil and medium is very serious. It is necessary to clean the sand and gravel medium under the ground or take out the sand and gravel for cleaning. The cleaning process is complicated and seriously affects the normal operation of the high-cost wetland system.

Utility model content

The purpose of this utility model is to provide a constructed wetland that divides the constructed wetland into multi-level units according to the terrain, topography, and occupied area. A constructed wetland system that removes large volumes of pollutants and effectively solves the problem of blockage.

The technical scheme that the utility model adopts is:

According to one aspect of the utility model, a constructed wetland system is provided, which includes: a constructed wetland system, characterized in that it includes N-level constructed wetland units connected in series, wherein N≥2, and the lower part of the constructed wetland unit has a water outlet There is a water inlet in the upper part, and there is a grid pool between two adjacent artificial wetland units. The inlet and outlet are respectively set on both sides of the grid pool. The outlet of the constructed wetland unit is connected to the water inlet of the next level of constructed wetland unit;

The interior of the grid pool is provided with a grid;

There is a mud discharge hopper at the bottom of the grid pool, and a mud discharge pipeline for mud discharge. One end of the mud discharge pipeline is provided with a mud suction port, which is located above the mud discharge hopper, and the other end of the mud discharge pipeline is Connect blower.

In some embodiments, the anti-seepage material layer, fine sand layer, lower crushed stone layer, coarse sand layer and upper crushed stone layer are successively laid in each level of constructed wetland unit from bottom to top, and aquatic plants are planted on the upper crushed stone layer.

The utility model has the following advantages:

1. The constructed wetland system provided by the utility model flexibly considers the land occupation requirements, and can first construct a first-level wetland in a single household, and then enter the subsequent 1st to N-level constructed wetland units for treatment; it can also collect sewage from several households After that, a first-level wetland will be built, and then it will be processed in the 1st to Nth-level constructed wetland units; it can also be collected by all users and then enter the 2nd to 10th-level constructed wetland units for treatment. Different wetland units can be constructed on different plots according to the local topography, topography, and area. It is especially suitable for sewage treatment in mountainous areas, terraced fields, and hilly areas. Aquatic plants are planted on the wetland units, and the multi-level wetland units are arranged in random order to beautify the environment.

2. The artificial wetland system provided by the utility model is equipped with a grid pool. First, the polluted water enters the grid pool to filter out large volumes of pollutants. The double-layer grid increases the filtering effect, and some fine sand and soil will sink. After entering the mud discharge hopper, the mud discharge equipment can be turned on for a period of time to extract the sediment in the mud discharge hopper, thus avoiding some large impurities from clogging the constructed wetland pool.

Description of drawings

Fig. 1 is a schematic structural diagram of the constructed wetland system provided by the utility model.

detailed description

The technical scheme of the utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 schematically shows a constructed wetland system according to an embodiment of the present invention.

As shown in the figure, the constructed wetland system provided by the utility model includes two levels of constructed wetland units 1 connected in series, and each level of constructed wetland unit 1 is sequentially laid with an anti-seepage material layer 5, a fine sand layer 6, and lower crushed stones from bottom to top. Layer 7, coarse sand layer 8 and upper gravel layer 9, on which aquatic plants 10 are planted.

The lower part of the constructed wetland unit 1 is provided with a water outlet 2 and the upper part is provided with a water inlet 3, and a grid pool 4 is provided between two adjacent constructed wetland units 1, and the two sides of the grid pool 4 are respectively provided with an inlet 41 and an outlet 42. The water outlet 2 of the first-level constructed wetland unit 1 is connected to the inlet 41 of the grid pool 4 , and the outlet of the grid pool 42 is connected to the water inlet 3 of the next-level constructed wetland unit 1 . The inside of the grid tank 4 is provided with a grid 43, the bottom of the grid tank 4 is provided with a mud discharge bucket 44, and a mud discharge pipeline 45 is provided for mud discharge, and one end of the mud discharge pipeline 45 is provided with a mud suction port 451 , The mud suction port 451 is located above the mud discharge bucket 44, and the other end of the mud discharge pipeline 45 is connected to the blower.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the utility model, some similar deformations and improvements can also be made, and these should also be considered Within the scope of protection of the utility model.

Claims (2)

1. Constructed wetland system, it is characterized in that, comprise the N level constructed wetland unit (1) of series connection, wherein N≥2, the bottom of described constructed wetland unit (1) has water outlet (2) top has water inlet ( 3), a grid pool (4) is provided between two adjacent constructed wetland units (1), and the entrance (41) and exit (42) are respectively provided on both sides of the grid pool (4), and the previous constructed wetland unit ( The water outlet (2) of 1) is connected to the inlet (41) of the grid pool (4), and the outlet of the grid pool (42) is connected to the water inlet (3) of the next-level constructed wetland unit (1); The interior of the grid pool (4) is provided with a grid (43); The bottom of the grill pool (4) is provided with a mud discharge bucket (44), and a mud discharge pipeline (45) for mud discharge is provided in addition, and one end of the mud discharge pipeline (45) is provided with a mud suction port ( 451), the mud suction port (451) is located above the mud discharge bucket (44), and the other end of the mud discharge pipeline (45) is connected to a blower. 2. The constructed wetland system according to claim 1, characterized in that, in the constructed wetland unit (1) of each stage, an anti-seepage material layer (5), a fine sand layer (6), and a lower crushed layer are sequentially laid from bottom to top. A stone layer (7), a coarse sand layer (8) and an upper gravel layer (9), on which aquatic plants (10) are planted.