Aquaculture wastewater treatment process

Abstract

The invention discloses a culture wastewater treatment process which comprises a culture pond and a purification pond which are connected through an adsorption pump and a water quality purification device, an automatic casting machine is arranged in the middle of the culture pond, and an aquaculture wastewater treatment agent and a composite microbial preparation are arranged in the automatic casting machine; water quality monitoring sensors are arranged at the bottom and on the inner wall of the aquaculture pond; meanwhile, a modularized water purification plant module is arranged at the bottom of the aquaculture pond through a lifting mechanism. The aquaculture wastewater treatment agent and the composite microbial preparation are automatically put into the culture pond with the data of the water quality monitoring sensor as the reference, the effect of better improving the water quality can be achieved, the use efficiency of the put materials is maximized, and meanwhile labor is saved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment in the field of environmental engineering, and in particular to a device and method for treating landfill leachate. Background Art

[0002] Aquaculture wastewater contains pollutants such as organic matter, ammonia nitrogen, nitrite, nitrate and phosphorus. If it is not effectively treated, it will cause serious pollution to water resources. In order to improve water quality and protect the ecological environment, the aquaculture industry usually uses three technologies: physical treatment technology, chemical treatment technology and biological treatment technology to improve water quality treatment. Taking physical treatment technology as an example, for example, filtration method: using materials with porous structures as filter media to separate solid particles and improve the clarity of water quality. Mechanical filtration technology is widely used because of its good effect; for example, sedimentation method: using the sedimentability of suspended particles, through the sedimentation tank treatment process, the suspended particles sink under the action of gravity to achieve the purpose of solid-liquid separation; for example, foam separation technology: by filling the water body with air to form bubbles, adsorbing tiny suspended particles and dissolved substances, and removing them after forming foam, to achieve the removal of pollutants. Take chemical treatment technology as an example, such as the ozone oxidation method: using the strong oxidizing property of ozone to oxidize organic matter and sterilize, which is suitable for industrial and intensive aquaculture, but the cost is relatively high; for example, the electrochemical method: removing pollutants such as phosphorus and nitrogen through electrolysis, which has the advantages of green, high efficiency and small equipment scale. Take biological treatment technology as an example, such as the biofilm method: including technologies such as biofilters and biorotating discs, using the adsorption and degradation of microorganisms to purify water quality; such as the artificial wetland method: removing nitrogen, phosphorus and organic matter through physical, chemical and biological pathways, with the characteristics of good stability, low consumption and high efficiency; such as the use of immobilized microbial technology: fixing microorganisms on carriers to enhance environmental stability and purification efficiency. However, the disadvantage of using the above technologies is that a single technology is relatively single and cannot be compatible with the comprehensive treatment of aquaculture wastewater; the combination of multiple methods faces the disadvantages of high investment cost and complex structure. Summary of the invention

[0003] The present invention aims at the above problems and proposes a breeding wastewater treatment process to solve the above problems.

[0004] In order to achieve the above technical objectives, the present invention adopts a breeding wastewater treatment process, including a breeding pond for breeding aquatic products, and a purification pond for purifying water quality, the breeding pond and the purification pond are connected by an adsorption pump and a water purification device, an automatic ejector is arranged in the middle of the breeding pond, and an aquaculture wastewater treatment agent and a composite microbial preparation are arranged in the automatic ejector; a water quality monitoring sensor capable of monitoring water quality in real time is arranged at the bottom and inner wall of the breeding pond, a control connection is formed between the water quality monitoring sensor and the automatic ejector, so that when the water quality monitoring sensor detects that the level required for purification has been reached, the automatic ejector automatically ejects a certain amount of aquaculture wastewater treatment agent and a composite microbial preparation into the breeding pond; at the same time, a modular water quality purification plant module is arranged at the bottom of the breeding pond through a lifting mechanism.

[0005] As a preferred embodiment of the present invention, the automatic ejector ejects 100-200KG of aquaculture wastewater treatment agent and composite microbial preparation into the breeding pond within a set period of 3 minutes when the water quality monitoring sensor detects that the water has reached the level that requires purification.

[0006] As a further preference of the present invention, the water purification plant module is a water hyacinth planting module, a duckweed planting module, a water cypress planting module, a crown grass planting module and an ear grass planting module, and the bottom of the gourd planting module, the duckweed planting module, the water cypress planting module, the crown grass planting module and the ear grass planting module are all provided with an embedded block structure, which forms an embedded connection with the embedded groove structure located at the upper end of the lifting mechanism.

[0007] As a further preferred embodiment of the present invention, the water purification device is a natural zeolite array structure that is vertically and spaced apart.

[0008] Furthermore, a purification material module consisting of an activated carbon module and a natural zeolite module is arranged at the bottom of the purification pond.

[0009] The aquaculture wastewater treatment process described in the present invention specifically comprises the following steps:

[0010] Step 1: When the water quality monitoring sensor detects that the water has reached the level that needs to be purified, the automatic ejector automatically ejects a certain amount of aquaculture wastewater treatment agent and composite microbial preparation into the breeding pond;

[0011] Step 2: 24 hours after the water quality is purified by the aquaculture wastewater treatment agent and the composite microbial preparation in step 1, the water in the breeding pond is transferred to the purification pond through an adsorption pump. During the transfer process, the water quality is further purified by the natural zeolite array structure. When the water in the breeding pond is continuously transferred to the purification pond, the water quality is continuously purified by the purification material module composed of the activated carbon module and the natural zeolite module;

[0012] Step 3: The purified water in the purification pond is re-input into the breeding pond through a water pump; Step 4: After purification in step 3, the water purification plant module is lifted out of the water surface by a lifting mechanism every 2-3 months, and the water purification plant module is replaced or maintained.

[0013] After adopting the above technical process, the present invention has the following advantages:

[0014] 1. The present invention uses the data of the water quality monitoring sensor as a reference to automatically add aquaculture wastewater treatment agents and composite microbial preparations into the breeding pond, which can not only achieve a better effect of improving water quality, but also maximize the use efficiency of the inputs, while saving labor;

[0015] 2. The present invention combines a variety of modular water purification plant modules that can improve water quality to assist in improving the water quality of the breeding pond, using natural plants to absorb a variety of impurities in the water and harmful substances that affect aquaculture, thereby achieving the purpose of natural harmony. At the same time, the modular structure facilitates the replacement and maintenance of water purification plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 The figure shows the structural schematic diagram of the embedded block structure and the embedded groove structure in the present invention;

[0018] Figure 3 Shown is a step framework diagram of the present invention;

[0019] Among them, 1. Breeding pond; 2. Purification pond; 3. Adsorption pump; 4. Water purification device; 5. Automatic ejector; 6. Aquaculture wastewater treatment agent; 7. Composite microbial preparation; 8. Water quality monitoring sensor; 9. Lifting mechanism with modularization; 10. Water purification plant module; 11. Embedded block structure; 12. Embedded trough structure; 13. Purification material module. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings and by selecting some data as examples. It should be understood that the selected data here are only used to assist in explaining the present invention and are not used to limit the present invention.

[0021] Combination Figure 1 It can be seen that a breeding wastewater treatment process includes a breeding pond 1 for breeding aquatic products and a purification pond 2 for purifying water quality. The breeding pond 1 and the purification pond 2 are connected by an adsorption pump 3 and a water purification device 4. In the present invention, the water purification device 4 is a natural zeolite array structure that is vertically and spaced apart. In addition, a purification material module composed of an activated carbon module and a natural zeolite module is arranged at the bottom of the purification pond 2.

[0022] As one of the innovations of the present invention, an automatic ejector 5 is provided in the middle of the breeding pond 1, and an aquaculture wastewater treatment agent 6 and a composite microbial preparation 7 are arranged in the automatic ejector 5; the aquaculture wastewater treatment agent 6 in the present invention adopts an aquaculture wastewater treatment agent with patent number 202410850728.7, and the composite microbial preparation 7 in the present invention adopts a composite microecological preparation with patent number 202010157841.9 for purification of aquaculture water bodies, but the present invention adopts an automatic ejector 5 to automatically eject the above-mentioned treatment agent and the microecological preparation in combination.

[0023] Continue watching Figure 1 A water quality monitoring sensor 8 capable of real-time monitoring of water quality is arranged at the bottom and inner wall of the breeding pond 1. In practical application, the water quality monitoring sensor 8 is mainly connected to the automatic cannon 5 by a control structure similar to a microprocessor or a single-chip microcomputer, so as to form the following effect: when the water quality monitoring sensor 8 detects that the water in the breeding pond 1 reaches the level required for purification, the automatic cannon 5 automatically projects a certain amount of aquaculture wastewater treatment agent 6 and composite microbial preparation 7 into the breeding pond 1; in the present invention, the preferred projectile quantity of the automatic cannon 5 is as follows: when the water quality monitoring sensor 8 detects that the water in the breeding pond 1 reaches the level required for purification, the automatic cannon 5 automatically projects 100-200KG of aquaculture wastewater treatment agent 6 and composite microbial preparation 7 into the breeding pond 1 within a set 3 minutes. The projectile distance of the automatic cannon 5 is adjusted with reference to the length and width of the breeding pond 1.

[0024] Continue watching Figure 1A modular water purification plant module 10 is provided at the bottom of the breeding pond 1 through a lifting mechanism 9. In the present invention, the preferred water purification plant modules are water hyacinth planting modules, golden hornwort planting modules, water pine grass planting modules, crown grass planting modules and ear grass planting modules. The bottoms of the water hyacinth planting modules, golden hornwort planting modules, water pine grass planting modules, crown grass planting modules and ear grass planting modules are all provided with an embedded block structure 11, which is embeddedly connected with the embedded slot structure 12 located at the upper end of the lifting mechanism 9 (see FIG. Figure 2 The embedded block structure 11 and the embedded groove structure 12 are provided mainly to facilitate the connection and disassembly of the water hyacinth planting module, the goldfish algae planting module, the water pine grass planting module, the crown grass planting module and the ear grass planting module, and also to facilitate replacement and maintenance.

[0025] Among the above-mentioned water purification plants, the water purification principle of each plant is as follows:

[0026] Water hyacinth: Water hyacinth can absorb nutrients such as nitrogen and phosphorus in the water, as well as a variety of heavy metal ions such as mercury, cadmium, and lead, thereby significantly reducing the concentration of pollutants in the water. The special structure between the roots and leaves of water hyacinth enables it to easily absorb and disperse harmful substances in the water. Through this process, the concentration of pollutants in the water body is effectively reduced, thereby achieving the purpose of purifying the water quality; in addition, the leaves of water hyacinth can also carry out photosynthesis, providing sufficient oxygen for fish and other aquatic organisms in the water, improving their living environment.

[0027] Duckweed: Duckweed improves water quality mainly by absorbing nutrients and harmful substances in the water and releasing oxygen through photosynthesis. Duckweed can absorb nutrients such as nitrogen and phosphorus in the water, effectively reduce the ammonia nitrogen content in the water, reduce the occurrence of algal blooms, and keep the water clear and healthy12. In addition, duckweed absorbs carbon dioxide and nutrients in the water through photosynthesis, and releases oxygen, increasing the dissolved oxygen content in the water, which helps maintain the ecological balance of the aquarium or natural water body.

[0028] Metasequoia: Metasequoia can absorb excess carbon dioxide in the water, increase the light-receiving area in the fish tank, and release nutrients, thereby improving the overall ecological environment. In addition, Metasequoia can produce oxygen through photosynthesis to further purify the water quality. The specific impact of Metasequoia on water quality: Absorb carbon dioxide: Metasequoia can absorb excess carbon dioxide in the water, which is very important for maintaining the carbon dioxide balance in the aquaculture pond; Increase the light-receiving area: Through photosynthesis, Metasequoia can increase the light-receiving area in the aquaculture pond and promote photosynthesis in the water body, thereby improving water quality; Release nutrients: Metasequoia releases nutrients during photosynthesis, and these nutrients are beneficial to the ecosystem in the aquaculture pond.

[0029] Crown grass: Crown grass improves water quality mainly by absorbing nutrients from water bodies, providing habitats for organisms, slowing water flow and fixing carbon. First, crown grass can absorb nutrients such as nitrogen and phosphorus from water bodies, thereby reducing the degree of eutrophication of water bodies and improving water quality1. This ability is essential to maintaining the cleanliness and health of water bodies and can effectively prevent water pollution problems such as algal blooms; secondly, crown grass provides an ideal habitat for many aquatic organisms, such as fish, amphibians and aquatic insects. These organisms thrive in crown grass, forming a rich biodiversity ecosystem, further enhancing the self-purification capacity of water bodies.

[0030] Ear-picking grass: Ear-picking grass has the function of purifying water. It is a small carnivorous plant that can purify water and absorb microorganisms and bacteria in the water, thereby improving water quality. This characteristic of ear-picking grass makes it have certain application value in water environments such as fish ponds.

[0031] Depend on Figure 3 It can be seen that the aquaculture wastewater treatment process described in the present invention specifically includes the following steps:

[0032] Step 1: When the water quality monitoring sensor 8 detects that the water has reached the level that needs to be purified, the automatic ejector 5 automatically ejects a certain amount of aquaculture wastewater treatment agent 6 and composite microbial preparation 7 into the breeding pond 1;

[0033] Step 2: 24 hours after the water quality is purified by the aquaculture wastewater treatment agent 6 and the composite microbial preparation 7 in step 1, the water in the breeding pond is transferred to the purification pond through the adsorption pump 3. During the transfer process, the water quality is further purified by the natural zeolite array structure. When the water in the breeding pond 1 is continuously transferred to the purification pond 2, the water quality is continuously purified by the purification material module composed of the activated carbon module and the natural zeolite module;

[0034] Step 3: The purified water in the purification pond 2 is re-input into the breeding pond 1 through a water pump;

[0035] Step 4: After purification in step 3, the water purification plant module 10 is lifted out of the water surface by the lifting mechanism 9 every 2-3 months, and the water purification plant module 10 is replaced or maintained.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A process for treating aquaculture wastewater, comprising a breeding pond for aquaculture and a purification pond for purifying water, wherein the breeding pond and the purification pond are connected via an adsorption pump and a water purification device, and characterized in that: An automatic ejector is provided in the middle of the breeding pond, and an aquaculture wastewater treatment agent and a composite microbial preparation are arranged in the automatic ejector; a water quality monitoring sensor capable of monitoring the water quality in real time is arranged at the bottom and inner wall of the breeding pond, and a control connection is formed between the water quality monitoring sensor and the automatic ejector, so that when the water quality monitoring sensor detects that the level required for purification has been reached, the automatic ejector automatically ejects a certain amount of aquaculture wastewater treatment agent and the composite microbial preparation into the breeding pond; at the same time, a modular water quality purification plant module is provided at the bottom of the breeding pond through a lifting mechanism.

2. A process for treating aquaculture wastewater according to claim 1, characterized in that: The amount of ejection by the automatic ejector: when the water quality monitoring sensor detects that the water has reached the level that requires purification, the automatic ejector automatically ejects 100-200KG of aquaculture wastewater treatment agent and composite microbial preparation into the breeding pond within the set 3 minutes.

3. A process for treating aquaculture wastewater according to claim 1, characterized in that: The water purification plant modules include a water hyacinth planting module, a duckweed planting module, a water cypress planting module, a crown grass planting module and an ear grass planting module. The bottoms of the water hyacinth planting modules, the duckweed planting modules, the water cypress planting modules, the crown grass planting modules and the ear grass planting modules are all provided with embedded block structures, which form an embedded connection with the embedded groove structure located at the upper end of the lifting mechanism.

4. A process for treating aquaculture wastewater according to claim 1, characterized in that: The water purification device is a natural zeolite array structure which is vertically and spaced apart.

5. A process for treating aquaculture wastewater according to claim 1, characterized in that: A purification material module consisting of an activated carbon module and a natural zeolite module is arranged at the bottom of the purification pond.

6. A process for treating aquaculture wastewater according to claims 1-6, characterized in that: The following steps are included: Step 1: When the water quality monitoring sensor detects that the water has reached the level that needs to be purified, the automatic ejector automatically ejects a certain amount of aquaculture wastewater treatment agent and composite microbial preparation into the breeding pond; Step 2: 24 hours after the water quality is purified by the aquaculture wastewater treatment agent and the composite microbial preparation in step 1, the water in the breeding pond is transferred to the purification pond through an adsorption pump. During the transfer process, the water quality is further purified by the natural zeolite array structure. When the water in the breeding pond is continuously transferred to the purification pond, the water quality is continuously purified by the purification material module composed of the activated carbon module and the natural zeolite module; Step 3: The purified water in the purification pond is re-injected into the breeding pond through a water pump; Step 4: After purification in step 3, every 2-3 months, the water purification plant module is lifted out of the water surface by the lifting mechanism, and the water purification plant module is replaced or maintained.

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