CN217895396U

CN217895396U - Aquaculture tail water MABR circulation clean system

Info

Publication number: CN217895396U
Application number: CN202222232685.5U
Authority: CN
Inventors: 曹翠翠; 甄玉飞; 吴建光; 闫晓军; 李刚
Original assignee: TIANJIN HYDROKING SCI & TECH Ltd
Current assignee: TIANJIN HYDROKING SCI & TECH Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-11-25
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to an aquaculture tail water MABR circulation clean system relates to sewage treatment technical field, including two subsystems in preliminary treatment ecological purification district and constructed wetland purification district, breed the ecological purification district of the preliminary treatment of canal gravity flow of tail water collection, the ecological purification district of preliminary treatment and constructed wetland purification district pass through the water delivery canal and connect, and constructed wetland purification district goes out water and recycles the breed district through the distribution canal. The pretreatment purifying area comprises a physical filtering area and an MABR ecological purifying area. The device of the utility model has the characteristics of stable water outlet, energy saving, consumption reduction, convenient construction, flexible use, high reuse rate and the like.

Description

Aquaculture tail water MABR circulation clean system

Technical Field

The utility model belongs to the technical field of sewage treatment, a aquaculture tail water MABR circulation clean system is related to. MABR, also known as enhanced coupled Biofilm Reactor (EHBR), is known by the English name of Membrane affected Biofilm Reactor.

Background

The development of the aquaculture industry is restricted by the extreme shortage of water resources at present, and is particularly reflected by the lack of a water source with stable and clean water quality. The tail water discharge of aquaculture is also limited by natural environment protection, and tail water with substandard water quality is strictly forbidden to be discharged into surface water. The efficient treatment of the aquaculture tail water is realized, the recycling of the aquaculture water can be realized simultaneously, the discharge risk of the substandard tail water is reduced, and the efficient utilization of water resources is realized.

The treatment of the tail water of aquaculture mainly comprises three methods, namely a chemical method, a physical method and a biological method. The chemical method has quick response by adding chemical agents, but is easy to destroy the water environment balance to cause secondary pollution and cause soil hardening around the pond. The physical treatment method mainly comprises a pond sedimentation method, a filtering dam and a bottom sewage discharge system, the land occupation area is large, the one-time investment cost for construction is high, the turbidity of the pond is mainly reduced by a water purification facility, and the tail water treatment capacity is limited. The traditional biological treatment method such as microecologics, water purification plants, filter feeding fishes and shellfishes and the like has strong technical performance and unobvious actual effect.

The technical need to the high-quality development of the aquaculture industry of China, the utility model provides an aquaculture tail water MABR circulation clean system possesses energy saving and consumption reduction, operates stably, the fortune dimension is simple and convenient, a great deal of advantage such as rate of reuse height.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an energy saving and consumption reduction, operation are stable, the fortune dimension is simple and convenient, the high and easy to carry out aquaculture tail water circulation clean system of rate of recovery effectively solves the water environmental pollution and the water environmental resource waste problem that the current aquaculture trade of china faces.

The utility model discloses a realize through following technical scheme:

the utility model provides an aquaculture tail water MABR circulation clean system which characterized in that: the system comprises a pretreatment ecological purification area and an artificial wetland purification area, wherein the pretreatment ecological purification area is connected with the artificial wetland purification area through a water delivery channel, the culture tail water automatically flows to the pretreatment ecological purification area through a collection channel, and the outlet water of the artificial wetland purification area is recycled to the culture area through a water distribution channel; the pretreatment purifying area comprises a physical filtering area and an MABR ecological purifying area, and the pool bodies are communicated; the artificial wetland purification area comprises a surface flow wetland and an undercurrent wetland; the physical filtering area comprises a filtering plate, a gravel layer and a sand filtering layer; the MABR ecological purification area comprises an MABR membrane unit and a bionic aquatic weed filler.

Furthermore, the aperture of the filtering plate of the physical filtering area is 1-2cm, the thickness of the gravel layer is 0.8-1.2m, and the height of the sand filtering layer is 0.2-0.4m.

Furthermore, the water outlet distribution channel of the artificial wetland purification area is provided with a water distribution pump which is recycled to the culture area through a water distribution pipeline.

Further, the effective surface area ratio of the MABR membrane unit to the bionic aquatic weed filler is 1:1-2:1.

further, the MABR membrane units are connected through gas supply pipelines, and gas supply equipment supplies gas for the MABR membrane units through the gas supply pipelines.

Furthermore, the area allocation ratio of the surface flow wetland and the subsurface flow wetland in the artificial wetland purification area is 2:1.

The utility model discloses an aquaculture tail water MABR circulation clean system utilizes physics to filter-MABR membrane technique-ecological wetland to combine together, breeds the tail water and obtains purifying, reduces water pollution, the recycling after the purification, water economy resource. The MABR membrane unit is used for aerating and oxygenating the water body, so that the dissolved oxygen of the water body is improved, and the organic pollutants which are difficult to degrade in the water body are degraded. The system has stable effluent quality, no chemical agent, low operation cost, simple operation, high reuse rate and no secondary pollution.

Drawings

Fig. 1 is a schematic diagram of the layout of the device system of the present invention.

Fig. 2 is the schematic diagram of the structure of the MABR membrane unit in the device system of the present invention.

Fig. 3 is a schematic diagram of the structure of the physical filtering area in the device system of the present invention.

In the figure: 1. the system comprises a breeding area, 2, a collecting channel, 3, a physical filtering area, 4, an MABR ecological purifying area, 5, an undercurrent wetland, 6, a surface current wetland, 7, a water distribution channel, 8, a water distribution pump, 9, an MABR membrane unit, 10, bionic aquatic weed filling, 11, a filter plate, 12, a gravel layer, 13, a sand filtering layer, 14, air supply equipment, 15, an air supply pipeline, 16, a pretreatment purifying area, 17, an artificial wetland purifying area, 18 and a water delivery channel.

Detailed Description

The utility model discloses an aquaculture tail water MABR circulation clean system is described further with reference to fig. 1-3.

An aquaculture tail water MABR circulating purification system comprises a pretreatment ecological purification area 16 and an artificial wetland purification area 17, wherein the pretreatment ecological purification area 16 and the artificial wetland purification area 17 are connected through a water delivery channel 18, aquaculture tail water automatically flows to the pretreatment ecological purification area 16 through a collection channel 2, and effluent of the artificial wetland purification area 17 is recycled to an aquaculture area 1 through a water distribution channel 7; the pretreatment purifying area 16 comprises a physical filtering area 3 and an MABR ecological purifying area 4, and the pool bodies are communicated; the artificial wetland purification area 17 comprises a surface flow wetland 6 and an undercurrent wetland 5; the physical filtering area 3 comprises a filtering plate 11, a gravel layer 13 and a sand filtering layer 12; the MABR ecological purification area 4 comprises an MABR membrane unit 9 and a bionic aquatic weed filler 10.

The water outlet and distribution channel 7 of the artificial wetland purification area 17 is provided with a water distribution pump 8 which is reused in the culture area 1.

The MABR membrane units 9 are connected by gas supply lines 15, and a gas supply device 14 supplies gas to the MABR membrane units 9 through the gas supply lines 15.

Example 1: 100 mu in a certain aquaculture area, 1.5 m in water depth, 10 ten thousand square in total water volume and 2 months in cycle period.

The aperture of the filter plate 11 of the physical filter area 3 is 2cm, the thickness of the gravel layer 13 is 1m, and the height of the sand filter layer 12 is 0.3m, so that suspended matters can be filtered, and the transparency of the water body is improved.

The effective surface area ratio of the MABR membrane unit 9 to the bionic aquatic weed filler 10 is 1:1, so that organic pollutants in a water body are effectively degraded, and dissolved oxygen is promoted.

The area allocation ratio of the surface flow wetland 6 and the subsurface flow wetland 5 in the artificial wetland purification area 17 is 2:1, the growth characteristics of different aquatic plants are fully utilized, and the water quality purification effect is enhanced.

The effluent of the MABR circulating purification system of the tail water of aquaculture can reach the second-level standard of 'requirement on discharge of aquaculture water in freshwater ponds' (SC/T9101-2007), namely CODMn is less than or equal to 25mg/L, total phosphorus is less than or equal to 1mg/L, suspended matters are less than or equal to 100mg/L, and total nitrogen is less than or equal to 5mg/L.

The implementation of the MABR circulating purification system for the aquaculture tail water realizes the zero discharge of the water sample aquaculture tail water, saves water resources, reduces water environmental pollution, improves water quality and greatly reduces operating cost.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the essence of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides an aquaculture tail water MABR circulation clean system which characterized in that: the system comprises a pretreatment ecological purification area (16) and an artificial wetland purification area (17), wherein the pretreatment ecological purification area (16) is connected with the artificial wetland purification area (17) through a water delivery channel (18), the culture tail water automatically flows to the pretreatment ecological purification area (16) through a collection channel (2), and the outlet water of the artificial wetland purification area (17) is recycled to the culture area (1) through a water distribution channel (7); the pretreatment ecological purification area (16) comprises a physical filtration area (3) and an MABR ecological purification area (4), and the pool bodies are communicated; the artificial wetland purification area (17) comprises a surface flow wetland (6) and an undercurrent wetland (5); the physical filtering area (3) comprises a filtering plate (11), a gravel layer (12) and a sand filtering layer (13); the MABR ecological purification area (4) comprises an MABR membrane unit (9) and a bionic aquatic weed filler (10).

2. The aquaculture tail water MABR circulating purification system of claim 1, wherein: the aperture of a filter plate (11) of the physical filtering area (3) is 1-2cm, the thickness of a gravel layer (12) is 0.8-1.2m, and the height of a sand filtering layer (13) is 0.2-0.4m.

3. The MABR recycling purification system for aquaculture tail water of claim 1, which is characterized in that: the water outlet and distribution channel (7) of the artificial wetland purification area (17) is provided with a water distribution pump (8) which is recycled to the culture area (1) through a water distribution pipeline.

4. The aquaculture tail water MABR circulating purification system of claim 1, wherein: the effective surface area ratio of the MABR membrane unit (9) to the bionic aquatic weed filler (10) is 1:1-2:1.

5. the aquaculture tail water MABR circulating purification system of claim 1, wherein: the MABR membrane units (9) are connected through gas supply pipelines (15), and the gas supply equipment (14) supplies gas for the MABR membrane units (9) through the gas supply pipelines (15).

6. The aquaculture tail water MABR circulating purification system of claim 1, wherein: the area allocation ratio of the surface flow wetland (6) and the subsurface flow wetland (5) of the artificial wetland purification area (17) is 2:1.