Total nitrogen treatment synergistic device at tail water discharge tail end of water purifier for aquaculture

Abstract

The utility model relates to a total nitrogen treatment synergistic device at the tail water discharge tail end of a water purifier for aquaculture, which is characterized by comprising a tail water input pipe, an anaerobic liquid input pipe, a tail water discharge pipe and a total nitrogen treatment bin, the anaerobic bacterium proliferation cavity and the plurality of mixed reaction cavities are all of a totally-closed structure, and the anaerobic bacterium proliferation cavity is filled with biological filler; the anaerobic liquid input pipe is communicated with the anaerobic bacterium proliferation cavity, the tail water input pipeline is communicated with the first mixed reaction cavity, and the tail water discharge pipe is communicated with the last mixed reaction cavity. The total nitrogen treatment synergistic device at the tail water discharge tail end of the aquaculture water purifier can effectively improve total nitrogen treatment in tail water.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture water treatment technology, and in particular to a total nitrogen treatment efficiency enhancement device at the end of the tailwater discharge of an aquaculture water purifier. Background Technology

[0002] In the process of artificial aquaculture, factors such as feed input, aquatic animal feces, drug residues, and the spread of pathogens cause cross-contamination of aquaculture water, especially wastewater, which affects the survival and growth of aquatic animals, shortens the lifespan of aquaculture water, and even leads to a shortage of aquaculture water resources. As a result, the purification and treatment of aquaculture water remains a complex and difficult problem to solve effectively.

[0003] Currently, existing technologies mainly employ traditional methods such as graded physical filtration, chemical treatment, and plant adsorption, but these methods still fall short of meeting the water quality requirements and discharge standards for aquaculture water. Generally, additional treatment devices are needed to treat the wastewater discharge to meet discharge requirements, leading to problems such as complex facilities, land occupation, and construction difficulties.

[0004] To address the aforementioned issues, adopting a microbial treatment method for aquaculture water, along with water purification equipment that requires minimal space, allows for convenient application, is easy to operate, and effectively treats water, is undoubtedly a necessary step in promoting technological innovation in aquaculture water treatment. Summary of the Invention

[0005] The problem this invention aims to solve is to provide a total nitrogen treatment enhancement device at the end of the effluent discharge of an aquaculture water purifier. This device can effectively improve the total nitrogen treatment in the effluent. The technical solution adopted is as follows:

[0006] A total nitrogen treatment enhancement device at the end of the tailwater discharge of an aquaculture water purifier is characterized by comprising a tailwater inlet pipe, an anaerobic liquid inlet pipe, a tailwater discharge pipe, and a total nitrogen treatment chamber. The total nitrogen treatment chamber includes an anaerobic bacteria proliferation chamber and multiple mixing reaction chambers connected in sequence. Both the anaerobic bacteria proliferation chamber and the multiple mixing reaction chambers are fully enclosed structures, and the anaerobic bacteria proliferation chamber is filled with biological packing material. The anaerobic liquid inlet pipe is connected to the anaerobic bacteria proliferation chamber, the tailwater inlet pipe is connected to the first mixing reaction chamber, and the tailwater discharge pipe is connected to the last mixing reaction chamber.

[0007] The aforementioned anaerobic liquid input pipe is connected to the wastewater pump of the bottom sediment mixture of the aquaculture water purifier, which guides the sediment mixture to the anaerobic bacteria proliferation chamber.

[0008] The aforementioned tailwater inlet pipe is connected to a pump that draws tailwater from the aquaculture pond, directing the tailwater to the first mixing reaction chamber.

[0009] The aforementioned anaerobic bacteria proliferation chamber is filled with biological packing material for the proliferation of denitrifying bacteria. A mixture of sediment from the bottom of the aquaculture water purifier is introduced through the anaerobic liquid inlet pipe as a supplementary organic carbon source. Because the sediment mixture at the bottom of the purifier has a very high pollution concentration, its oxidation-reduction potential reaches -85mV (oxidation-reduction potential is an important parameter in anaerobic reaction processes, reflecting electron transfer and metabolic changes in the form of matter during microbial metabolism under anaerobic conditions; it can be used to assess the anaerobic environment and measure the activity of anaerobic bacteria). This enhances the biomass of denitrifying bacteria and provides a supplementary composite carbon source for the denitrification reaction. Therefore, by introducing the sediment mixture from the bottom of the aquaculture water purifier into the anaerobic bacteria proliferation chamber through the anaerobic liquid inlet pipe, in a completely enclosed, oxygen-deficient environment, the denitrifying bacteria proliferate and enhance their activity through the supplementation of organic carbon sources. Utilizing nitrates or nitrites as electron acceptors, they reduce them to nitrogen gas through respiration and release a high concentration of anaerobic bacterial liquid, which then undergoes multiple thorough mixing reactions with the aquaculture pond effluent. In this process, the organic matter in the sediment mixture acts as an electron donor, reducing nitrates to nitrogen gas. Simultaneously, the organic matter is oxidized, releasing energy for denitrifying bacteria. This not only shortens the total nitrogen treatment time but also effectively improves the total nitrogen treatment in the effluent. Since the organic carbon source is derived from the sediment mixture at the bottom of the aquaculture water purifier, and the entire total nitrogen treatment enhancement device is separated by a total nitrogen treatment chamber, it can be installed above the aquaculture water purifier without requiring additional land area.

[0010] The aforementioned multiple mixing reaction chambers are used to conduct multi-stage mixing reactions between the bacterial solution after anaerobic bacterial proliferation and the wastewater from aquaculture. In a fully enclosed, oxygen-deficient environment, the wastewater and bacterial solution undergo effective denitrification after multi-stage mixing reactions, resulting in effluent that better meets discharge requirements. Furthermore, the interconnected nature of the multiple mixing reaction chambers extends the reaction path, allowing nitrates or nitrites to react fully.

[0011] As a preferred embodiment of this utility model, the total nitrogen treatment chamber includes a basin and a lid, with the lid covering the basin. The basin contains multiple partition plates that divide it into one anaerobic bacteria proliferation chamber and multiple mixing reaction chambers. Each partition plate has an overflow or overflow port, spaced sequentially. The outlet of the anaerobic liquid inlet pipe is located above the anaerobic bacteria proliferation chamber, the outlet of the tailwater inlet pipe is located above the first mixing reaction chamber, and the inlet of the tailwater discharge pipe is located on the upper part of the chamber wall of the last mixing reaction chamber. The basin is generally circular, but can also be square or other shapes. Designing the total nitrogen treatment chamber as a basin structure makes it more suitable for installation above an aquaculture water purifier, creating a seamless integration.

[0012] As a further preferred embodiment of this utility model, multiple partition plates are arranged parallel and vertically in the basin, with each overflow port located on the upper part of the corresponding partition plate and each overflow port located on the lower part of the corresponding partition plate.

[0013] As a further preferred embodiment of this utility model, adjacent overflow ports and overflow ports are staggered in both the horizontal and vertical directions. To allow for a more sufficient mixing reaction time for the effluent in the mixing reaction chamber, the adjacent overflow ports and overflow ports are staggered in both the horizontal and vertical directions. This allows the effluent to have sufficient time to mix after flowing from the overflow port / overflow port of the anaerobic bacteria proliferation chamber / previous mixing reaction chamber into the current mixing reaction chamber, before flowing from the overflow port of the current mixing reaction chamber into the next mixing reaction chamber.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This utility model relates to a total nitrogen treatment enhancement device at the end of the tailwater discharge of an aquaculture water purifier. It utilizes a biological packing material filled in an anaerobic bacteria proliferation chamber for the proliferation of denitrifying bacteria. An anaerobic liquid inlet pipe introduces a mixture of sediment from the bottom of the aquaculture water purifier as a supplementary organic carbon source. In a fully enclosed, oxygen-deficient environment, the denitrifying bacteria proliferate and their activity is enhanced by the supplemented organic carbon source. Using nitrates or nitrites as electron acceptors, they reduce these to nitrogen gas through respiration and release a high concentration of anaerobic bacterial liquid. This liquid undergoes multiple thorough mixing reactions with the tailwater from the aquaculture pond. After multi-stage mixing and reaction, the tailwater and bacterial liquid effectively remove nitrogen, forming effluent that better meets discharge requirements. This not only shortens the total nitrogen treatment time but also effectively improves the total nitrogen treatment efficiency in the tailwater. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention (with the lid removed);

[0017] Figure 2 for Figure 1 Sectional view along the middle AA;

[0018] The labels are as follows: 1-Effective wastewater inlet pipe, 2-Anaerobic liquid inlet pipe, 3-Effective wastewater discharge pipe, 4-Total nitrogen treatment chamber, 401-Pot body, 402-Pot cover, 403-Divider plate, 404-Overflow outlet, 405-Flow outlet, 5-Anaerobic bacteria proliferation chamber, 6-Mixed reaction chamber, 7-Biological packing material. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings and preferred embodiments of the present invention, will provide further details.

[0020] like Figure 1 and Figure 2As shown, a total nitrogen treatment efficiency enhancement device at the end of the tailwater discharge of an aquaculture water purifier includes a tailwater inlet pipe 1, an anaerobic liquid inlet pipe 2, a tailwater discharge pipe 3, and a total nitrogen treatment chamber 4. The total nitrogen treatment chamber 4 includes a basin 401 and a basin cover 402. The basin cover 402 covers the basin 401 to form a fully enclosed structure. In this embodiment, the basin 401 is provided with four partition plates 403. The four partition plates 403 are arranged parallel and vertically in the basin 401. The four partition plates 403 divide the basin 401 into an anaerobic bacteria proliferation chamber 5 and four mixing reaction chambers 6 that are connected in sequence. The first partition plate 403 and the third partition plate are provided with overflow ports 404 at their upper parts, and the second partition plate 403 and the fourth partition plate 403 are provided with overflow ports 405 at their lower parts. Each overflow port 404 is provided on the upper part of the corresponding partition plate 403. Adjacent overflow ports 404 and overflow ports 405 are staggered in the horizontal and vertical directions.

[0021] like Figure 1 and Figure 2 As shown, the anaerobic bacteria proliferation chamber 5 is filled with biological packing material 7; the outlet of the anaerobic liquid inlet pipe 2 is located at the top of the anaerobic bacteria proliferation chamber 5, and the anaerobic liquid inlet pipe 2 is connected to the sewage pump of the bottom sediment mixture of the aquaculture water purifier, which guides the sediment mixture to the anaerobic bacteria proliferation chamber 5; the outlet of the tailwater inlet pipe 1 is located at the top of the first mixing reaction chamber 6, and the tailwater inlet pipe 1 is connected to the water pump of the aquaculture pond tailwater, which guides the tailwater to the first mixing reaction chamber 6; the inlet of the tailwater discharge pipe 3 is located at the top of the chamber wall of the last mixing reaction chamber 6.

[0022] In this embodiment, the basin 401 is generally set to a circle, but it can also be square or other shapes. Setting the total nitrogen treatment chamber 4 as a basin 401 structure is more suitable for installation on top of the aquaculture water purifier, making it an integral part without requiring additional land area.

[0023] This utility model relates to a total nitrogen treatment enhancement device at the end of the tailwater discharge of an aquaculture water purifier. It utilizes a biological packing material 7 filled in the anaerobic bacteria proliferation chamber 5 for the proliferation of denitrifying bacteria. An anaerobic liquid inlet pipe 2 introduces a mixture of sediment from the bottom of the aquaculture water purifier as a supplementary organic carbon source. In a fully enclosed, oxygen-deficient environment, the denitrifying bacteria proliferate and their activity is enhanced by the supplemented organic carbon source. Using nitrates or nitrites as electron acceptors, they reduce them to nitrogen gas through respiration and release a high concentration of anaerobic bacterial liquid, which undergoes multiple thorough mixing reactions with the tailwater from the aquaculture pond. After multi-stage mixing reactions, the tailwater and bacterial liquid are effectively denitrified, forming effluent that better meets discharge requirements. Furthermore, the multiple interconnected mixing reaction chambers 6 extend the reaction path, allowing nitrates or nitrites to react fully, thus shortening the total nitrogen treatment time and effectively improving the total nitrogen treatment efficiency in the tailwater.

[0024] In addition, in order to allow the tailwater in the mixing reaction chamber 6 more sufficient mixing reaction time, the adjacent overflow ports 404 and overflow ports 405 are staggered in the horizontal and vertical directions. This allows the tailwater to have a certain amount of time to mix and react after flowing from the anaerobic bacteria proliferation chamber 5 / the overflow port 404 / overflow port 405 of the previous mixing reaction chamber 6 into the current mixing reaction chamber 6, and then flow from the overflow port 404 of the current mixing reaction chamber 6 to the next mixing reaction chamber 6.

[0025] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.

Claims

1. A total nitrogen treatment efficiency enhancement device at the end of the tailwater discharge of an aquaculture water purifier, characterized in that: It includes a tailwater inlet pipe, an anaerobic liquid inlet pipe, a tailwater outlet pipe, and a total nitrogen treatment chamber. The total nitrogen treatment chamber includes an anaerobic bacteria proliferation chamber and multiple mixing reaction chambers that are connected in sequence. The anaerobic bacteria proliferation chamber and the multiple mixing reaction chambers are all fully enclosed structures. The anaerobic bacteria proliferation chamber is filled with biological packing material. The anaerobic liquid inlet pipe is connected to the anaerobic bacteria proliferation chamber, the tailwater inlet pipe is connected to the first mixing reaction chamber, and the tailwater outlet pipe is connected to the last mixing reaction chamber.

2. The total nitrogen treatment efficiency enhancement device at the end of the tailwater discharge of the aquaculture water purifier according to claim 1, characterized in that: The total nitrogen treatment chamber includes a basin and a lid, with the lid covering the basin. The basin contains multiple partition plates that divide it into one anaerobic bacteria proliferation chamber and multiple mixing reaction chambers. Each partition plate has an overflow port. The outlet of the anaerobic liquid inlet pipe is located above the anaerobic bacteria proliferation chamber, the outlet of the tailwater inlet pipe is located above the first mixing reaction chamber, and the inlet of the tailwater outlet pipe is located on the upper part of the chamber wall of the last mixing reaction chamber.

3. The total nitrogen treatment efficiency enhancement device at the end of the tailwater discharge of the aquaculture water purifier according to claim 2, characterized in that: Multiple partition plates are arranged in parallel and vertically within the basin, with each overflow outlet located on the upper part of the corresponding partition plate.

4. The total nitrogen treatment efficiency enhancement device at the end of the tailwater discharge of the aquaculture water purifier according to claim 3, characterized in that: The two adjacent overflow outlets are staggered in the horizontal direction.

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