Device for resourcefully treating aquaculture wastewater by using microalgae

Abstract

The utility model relates to the technical field of aquaculture wastewater, and discloses a microalgae resourceful treatment aquaculture wastewater device, which is used for aquaculture tail water treatment and comprises a treatment pond, support legs are arranged at the bottom of the treatment pond, a water inlet pipe for introducing tail water into the treatment pond is arranged in the treatment pond, and a water outlet pipe for introducing the tail water into the treatment pond is arranged in the treatment pond. A microalgae treatment mechanism for treating the aquaculture tail water is arranged in the treatment pond. By culturing the green algae terrace, pollutants such as nitrogen and phosphorus in the water body are consumed by utilizing the biological activity of the green algae terrace, so that the efficient nitrogen-reducing and phosphorus-removing effects are realized. The biological treatment method not only is environment-friendly, but also can effectively remove harmful substances in the wastewater. Meanwhile, the position of the mounting framework can be adjusted according to the water level in the treatment pond, and it is ensured that the green alga apron is always in the optimal treatment state. When the abundance of green alga cells reaches a peak value and enters a decline stage, the green alga terrace can be easily taken out by simply adjusting the fixing assembly, and subsequent treatment or replacement is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of breeding wastewater, and in particular to a microalgae resourceful treatment breeding wastewater device. BACKGROUND

[0002] Aquaculture tail water pollution is a typical problem of non-point source pollution. The main pollutants in tail water are ammonia nitrogen, nitrite, organic matter, phosphorus and fouling organisms. If tail water is not treated in time and effectively, it will not only deteriorate the environment of aquaculture water area, but also lead to explosive diseases of fish, shrimps and crabs, and even large-scale death. Nowadays, the "three pools and two dams" purification system treatment process is generally used to treat tail water, and then discharge it to rivers or recycle it to fish ponds for use.

[0003] The "three pools and two dams" are a sedimentation tank + a filter dam + an aeration tank + a filter dam + an artificial wetland. The sedimentation tank, the two filter dams and the artificial wetland intercept the suspended solids in the sewage. The aeration tank increases the dissolved oxygen in the water to speed up the oxidation and decomposition of organic pollutants. The artificial wetland is located at the rear end of the tail water treatment facility, and uses aquatic plants of different trophic levels to remove water pollutants. However, the management and maintenance of the third pool artificial wetland are complicated, and regular seedling supplement, weed removal, timely harvesting and pest control management are required. Moreover, when the related green algae enters the decline period, it often needs to use fishing tools to take out the green algae, which is complicated and low in efficiency. UTILITARIAN CONTENT

[0004] The utility model aims at providing a microalgae resourceful treatment breeding wastewater device, which can consume nitrogen, phosphorus and other pollutants in the water body by cultivating green algae algae lawns and using their biological activity. When the green algae cell abundance reaches the peak and enters the decline period, the green algae algae lawns can be easily taken out by simply adjusting the fixing assembly, which is convenient for subsequent treatment or replacement.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a microalgae resourceful treatment breeding wastewater device for aquaculture tail water treatment, comprising a treatment tank, a supporting leg is arranged at the bottom of the treatment tank, a water inlet pipe for passing tail water into the treatment tank is arranged in the treatment tank, and a microalgae treatment mechanism for treating aquaculture tail water is arranged in the treatment tank.

[0006] The microalgae treatment mechanism comprises an installation framework arranged in the treatment tank, and a green algae algae lawn for treating aquaculture tail water is arranged outside the installation framework.

[0007] Preferably, the microalgae treatment mechanism further comprises an adjusting and fixing assembly for adjusting and fixing the position of the installation framework, the adjusting and fixing assembly comprises a plurality of assembly holes formed in the treatment tank and a fixing plate arranged at the top of the installation framework, and a pin block capable of being inserted into the assembly hole is slidably arranged in the fixing plate.

[0008] Preferably, the adjusting and fixing assembly further comprises a connecting frame fixed on the top of the mounting framework, a first connecting column movably arranged in the connecting frame, the first connecting column connected with the pin block on the side close to the pin block, and a first spring arranged on the first connecting column.

[0009] Preferably, the two ends of the first spring are connected with the pin block and the connecting frame respectively.

[0010] Preferably, the adjusting and fixing assembly further comprises a connecting block arranged on the side of the first connecting column away from the pin block, a connecting plate movably arranged on the bottom of the connecting block, a second connecting column arranged on the bottom of the connecting plate, a mounting shaft rotatably arranged on the top end of the mounting framework, a mounting plate arranged on the mounting shaft, the mounting plate movably connected with the second connecting column, and a first handle arranged on the top of the mounting shaft.

[0011] Preferably, an auxiliary cleaning mechanism for assisting the cleaning of the treatment pool after the green algae algae field is taken out is arranged in the treatment pool, the auxiliary cleaning mechanism comprises a flow guide plate arranged in the treatment pool, and a baffle is slidably arranged in the treatment pool, and a second handle is fixed on the baffle.

[0012] Preferably, a two-stage treatment mechanism for performing secondary treatment on the treated aquaculture tail water in the treatment pool is arranged outside the treatment pool, the two-stage treatment mechanism comprises an electric liquid pump arranged at the bottom end of the treatment pool and a rice field artificial wetland outside the treatment pool, the liquid inlet end of the electric liquid pump is communicated with the treatment pool, and a liquid outlet pipe is communicated with the liquid outlet end of the electric liquid pump.

[0013] Preferably, the liquid outlet pipe is communicated with the rice field artificial wetland on the side away from the treatment pool.

[0014] Compared with the prior art, the microalgae resource treatment aquaculture wastewater device has the following beneficial effects:

[0015] 1. The microalgae resource treatment aquaculture wastewater device, by cultivating green algae algae field, utilizes the biological activity to consume nitrogen, phosphorus and other pollutants in the water body, realizes high-efficiency nitrogen and phosphorus removal effect. This biological treatment method is not only environmentally friendly, but also can effectively remove harmful substances in wastewater. At the same time, the position of the mounting framework can be adjusted according to the water level in the treatment pool, so as to ensure that the green algae algae field is always in the best treatment state. When the green algae cell abundance reaches the peak value and enters the decline period, the green algae algae field can be easily taken out by simply adjusting the fixing assembly, which is convenient for subsequent treatment or replacement.

[0016] 2、The microalgae resource treatment aquaculture wastewater device, after treating the wastewater, the device is designed to allow the wastewater in the treatment pool to be quickly extracted by the electric liquid pump and discharged into the rice field artificial wetland for further treatment, utilizes the digestion-denitrification of the root microorganisms to realize the water purification effect, and can also supply water to the next stage of fishpond to realize "one water multiple use and ecological utilization". In addition, when the treatment pool needs to be cleaned, the second handle is pulled to make the baffle slide out of the treatment pool, and residual green algae can be easily scraped off by using a scraper or the like. Under the action of the flow guide plate, the green algae can be smoothly guided out and collected for secondary treatment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the microalgae resource treatment aquaculture wastewater device.

[0018] Figure 2 It is a three-dimensional structure schematic view of the treatment pool in the microalgae resource treatment aquaculture wastewater device.

[0019] Figure 3 It is a partial sectional view structure schematic view of the treatment pool in the microalgae resource treatment aquaculture wastewater device.

[0020] Figure 4 It is a partial disassembly structure schematic view of the microalgae treatment mechanism in the microalgae resource treatment aquaculture wastewater device.

[0021] Figure 5 It is a partial three-dimensional structure schematic view of the microalgae treatment mechanism in the microalgae resource treatment aquaculture wastewater device.

[0022] Figure 6 It is a three-dimensional structure schematic view of the adjusting and fixing assembly in the microalgae resource treatment aquaculture wastewater device.

[0023] Figure 7 It is a partial three-dimensional structure schematic view of the two-stage treatment mechanism in the microalgae resource treatment aquaculture wastewater device.

[0024] In the drawing: 1, treatment pool; 11, water inlet pipe; 2, supporting leg; 3, microalgae treatment mechanism; 31, mounting framework; 32, green algae algae flat; 3a, adjusting and fixing assembly; 3a1, assembly hole; 3a2, fixing plate; 3a3, pin block; 3a4, connecting frame; 3a5, first connecting column; 3a6, first spring; 3a7, connecting block; 3a8, connecting plate; 3a9, second connecting column; 3a10, mounting shaft; 3a11, first handle; 3a12, mounting plate; 4, two-stage treatment mechanism; 41, electric liquid pump; 42, liquid outlet pipe; 43, rice field artificial wetland; 5, auxiliary cleaning mechanism; 51, flow guide plate; 52, baffle; 53, second handle. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0026] Embodiment one: please refer to Figures 1-7 The utility model provides a kind of technical scheme: a kind of microalgae resource processing aquaculture wastewater device, for aquaculture tail water treatment, including treatment pond 1, the bottom of treatment pond 1 is provided with support leg 2, water inlet pipe 11 for tail water into treatment pond 1 is provided in treatment pond 1, microalgae processing mechanism 3 for treating aquaculture tail water is provided in treatment pond 1.

[0027] Microalgae processing mechanism 3 includes installation skeleton 31 being provided in treatment pond 1, installation skeleton 31 is externally provided with green algae algae plot 32 for treating aquaculture tail water. Through green algae algae plot 32 in microalgae processing mechanism 3 effectively treats aquaculture tail water, realizes the recycling of resources, reduces environmental pollution.

[0028] Further, microalgae processing mechanism 3 further includes adjusting and fixing assembly 3a for adjusting and fixing the position of installation skeleton 31, adjusting and fixing assembly 3a includes multiple groups of assembly holes 3a1 being opened in treatment pond 1 and fixed plate 3a2 being provided at the top of installation skeleton 31, and the slidingly provided pin block 3a3 that can be formed with the assembly hole 3a1 of plug-in is in fixed plate 3a2. Through adjusting and fixing assembly 3a, the position of installation skeleton 31 and green algae algae plot 32 thereon can be flexibly adjusted to adapt to different water levels and processing needs, improve processing efficiency.

[0029] Further, adjusting and fixing assembly 3a further includes connecting frame 3a4 being fixed at the top of installation skeleton 31, and the first connecting column 3a5 is movably arranged in connecting frame 3a4, the first connecting column 3a5 is connected with pin block 3a3 near one side of pin block 3a3, and the first spring 3a6 is provided on the first connecting column 3a5. The design of first spring 3a6 makes pin block 3a3 can be automatically reset and be inserted with assembly hole 3a1, simplifies the fixing process of installation skeleton 31, improves the convenience of operation.

[0030] Further, the two ends of first spring 3a6 are connected with pin block 3a3 and connecting frame 3a4 respectively. The stability and reliability of first spring 3a6 are ensured, and the working performance of adjusting and fixing assembly 3a is further improved.

[0031] Further, the adjusting and fixing assembly 3a further comprises a connecting block 3a7 arranged on the side of the first connecting column 3a5 away from the pin block 3a3, the bottom of the connecting block 3a7 movably provided with a connecting plate 3a8, the bottom of the connecting plate 3a8 provided with a second connecting column 3a9, the top end of the mounting skeleton 31 rotatably provided with a mounting shaft 3a10, the mounting shaft 3a10 externally provided with a mounting plate 3a12, and the mounting plate 3a12 movably connected with the second connecting column 3a9, and the top of the mounting shaft 3a10 provided with a first handle 3a11. The connecting block 3a7, the connecting plate 3a8 and the second connecting column 3a9 are driven to realize the insertion or separation of the pin block 3a3 and the assembly hole 3a1, which is simple and efficient to operate.

[0032] Further, the processing pool 1 is provided with an auxiliary cleaning mechanism 5 arranged in the processing pool 1 to assist in cleaning the green algae algae plot 32, the auxiliary cleaning mechanism 5 comprising a flow guide plate 51 arranged in the processing pool 1, and a baffle 52 slidably arranged in the processing pool 1, and the baffle 52 externally fixed with a second handle 53. The auxiliary cleaning mechanism 5 simplifies the cleaning process of the processing pool, the baffle 52 is slid out by pulling the second handle 53, and the residual green algae is guided out by the flow guide plate 51, which improves the cleaning efficiency and convenience.

[0033] Embodiment two: please refer to Figure 7 In combination with Embodiment One, it is further obtained that the processing pool 1 is provided with a two-stage processing mechanism 4 for secondary processing of the processed aquaculture tail water in the processing pool 1, the two-stage processing mechanism 4 comprising an electric liquid pump 41 arranged at the bottom end of the processing pool 1 and a rice field constructed wetland 43 outside the processing pool 1, the electric liquid pump 41 being in communication with the processing pool 1 at the liquid inlet end, and the liquid outlet end of the electric liquid pump 41 being communicated with a liquid outlet pipe 42. The two-stage processing mechanism 4 discharges the processed tail water into the rice field constructed wetland 43 for further processing through the electric liquid pump 41, realizing deep purification of the tail water and maximized utilization of resources.

[0034] Further, the liquid outlet pipe 42 is in communication with the rice field constructed wetland 43 on the side away from the processing pool 1. This ensures that the processed tail water can smoothly enter the rice field constructed wetland 43 for secondary processing, improving the processing effect and environmental protection performance of the entire device.

[0035] In actual operation, first, the aquaculture wastewater is added to the processing pool 1 through the water inlet pipe 11. When the wastewater needs to be processed, a certain volume ratio of SE culture medium is added to cultivate filamentous algae. The cultivation and growth period of filamentous algae is about 10 days.

[0036] When the filamentous algae are in the exponential growth phase, the cultivated green algae algae lawn 32 is placed outside the installation skeleton 31. Then, according to the water level in the treatment tank 1, the position of the installation skeleton 31 is adjusted. The specific operation is: the first handle 3a11 is rotated, the installation shaft 3a10 and the installation plate 3a12 are driven to rotate. Through the transmission of the second connecting column 3a9 and the connecting plate 3a8, the connecting block 3a7 is pulled, and the first connecting column 3a5 slides in the connecting frame 3a4. At the same time, the pin block 3a3 slides in the fixed plate 3a2, and after aligning the assembly hole 3a1 of the required height, the first handle 3a11 is loosened. Under the rebound action of the first spring 3a6, the pin block 3a3 returns to the initial position and forms a plug-in connection with the assembly hole 3a1 in the corresponding position, thereby fixing the installation skeleton 31.

[0037] When the green algae cell abundance in the green algae algae lawn 32 increases, the nitrogen, phosphorus and other pollutants in the water body are consumed, and the effects of nitrogen and phosphorus removal are achieved. When the filamentous algae culture growth period reaches about 20 days, the green algae cell abundance reaches the peak value and enters the decline period, and the cell metabolites increase. In order to avoid excessive consumption of oxygen by algae cells, leading to a decrease in dissolved oxygen and an increase in ammonia nitrogen, the fixed assembly 3a can be adjusted to separate the pin block 3a3 from the assembly hole 3a1, and the green algae algae lawn 32 can be taken out.

[0038] After the wastewater is treated, the electric liquid pump 41 is opened, the wastewater in the treatment tank 1 is pumped out, and is discharged into the rice field artificial wetland 43 through the liquid outlet pipe 42. In the rice field, the nitrogen element is removed by synthesizing amino acids, proteins and other nitrogen-containing organic matter; the root microorganisms realize nitrification-denitrification under the anaerobic and anoxic environment. The phosphorus element is absorbed by the rice field to synthesize lecithin, nucleic acid and ATP; the microorganisms normally assimilate and excessively accumulate phosphorus; and the soil sedimentation removes the soluble phosphorus.

[0039] When the water in the treatment tank 1 is pumped out and needs to be cleaned, the second handle 53 is pulled to slide the baffle 52 out of the treatment tank 1, and then a scraping plate or the like is used to scrape off the residual green algae in the treatment tank 1. Under the action of the flow guide plate 51, the residual green algae can be guided out, collected and treated again.

[0040] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A device for treating aquaculture wastewater using microalgae resources, for treating aquaculture tailwater, comprising a treatment tank (1), wherein the bottom of the treatment tank (1) is provided with supporting legs (2), and an inlet pipe (11) is provided in the treatment tank (1) to allow tailwater to flow into the treatment tank (1), characterized in that: The treatment tank (1) is equipped with a microalgae treatment mechanism (3) for treating aquaculture wastewater; The microalgae treatment mechanism (3) includes an installation frame (31) set in the treatment tank (1), and a green algae algae mat (32) for treating aquaculture wastewater is set outside the installation frame (31).

2. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 1, characterized in that: The microalgae treatment mechanism (3) further includes an adjustment and fixing component (3a) for adjusting and fixing the position of the mounting frame (31). The adjustment and fixing component (3a) includes multiple sets of assembly holes (3a1) opened in the treatment tank (1) and a fixing plate (3a2) set on the top of the mounting frame (31). A pin (3a3) that can be inserted into the assembly hole (3a1) is slidably arranged in the fixing plate (3a2).

3. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 2, characterized in that: The adjustment and fixing assembly (3a) further includes a connecting frame (3a4) fixed on the top of the mounting frame (31). A first connecting post (3a5) is movably disposed in the connecting frame (3a4). The first connecting post (3a5) is connected to the pin (3a3) on the side near the pin (3a3). A first spring (3a6) is sleeved on the first connecting post (3a5).

4. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 3, characterized in that: The first spring (3a6) is connected at both ends to the pin block (3a3) and the connecting bracket (3a4).

5. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 3, characterized in that: The adjusting and fixing assembly (3a) further includes a connecting block (3a7) disposed on the side of the first connecting post (3a5) away from the pin block (3a3). A connecting plate (3a8) is movably disposed at the bottom of the connecting block (3a7). A second connecting post (3a9) is disposed at the bottom of the connecting plate (3a8). A mounting shaft (3a10) is rotatably disposed at the top of the mounting frame (31). A mounting plate (3a12) is disposed outside the mounting shaft (3a10), and the mounting plate (3a12) is movably connected to the second connecting post (3a9). A first handle (3a11) is disposed at the top of the mounting shaft (3a10).

6. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 1, characterized in that: The treatment tank (1) is provided with an auxiliary cleaning mechanism (5) for cleaning the treatment tank (1) when the green algae tarpaulin (32) is removed. The auxiliary cleaning mechanism (5) includes a guide plate (51) provided in the treatment tank (1). A baffle (52) is slidably provided in the treatment tank (1). A second handle (53) is fixed outside the baffle (52).

7. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 1, characterized in that: Outside the treatment pool (1), there is a two-stage treatment mechanism (4) for secondary treatment of the aquaculture wastewater after treatment in the treatment pool (1). The two-stage treatment mechanism (4) includes an electric pump (41) installed at the bottom of the treatment pool (1) and an artificial wetland (43) in paddy field outside the treatment pool (1). The inlet end of the electric pump (41) is connected to the treatment pool (1), and the outlet end of the electric pump (41) is connected to an outlet pipe (42).

8. The microalgae resource utilization treatment device for aquaculture wastewater according to claim 7, characterized in that: The outlet pipe (42) is connected to the artificial wetland (43) in the paddy field on the side away from the treatment pool (1).

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