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Three-dimensional oxygen aeration system and method applicable to biological flocculation breeding method

A biofloc and three-dimensional technology, applied in the fields of application, fish farming, animal husbandry, etc., can solve the problems that are not suitable for the biofloc breeding system, the efficiency of oxygenation and water pushing and agitation are difficult to be combined, and the energy consumption is high. To achieve the effect of solving the lack of dissolved oxygen

Inactive Publication Date: 2016-12-07
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The current methods of aquaculture oxygenation are mostly based on bottom oxygenation (airstone aeration, microporous aeration, etc.) It is difficult to have both oxygenation efficiency and water pushing and agitation for a single method of oxygenation. It is not suitable for biofloc culture systems and has high energy consumption.

Method used

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  • Three-dimensional oxygen aeration system and method applicable to biological flocculation breeding method
  • Three-dimensional oxygen aeration system and method applicable to biological flocculation breeding method

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Embodiment 1

[0025] Embodiment 1: A three-dimensional aeration system suitable for biofloc culture, taking the Litopenaeus vannamei culture system as an example, including a culture pond 1 and an aeration system, and the culture pond 1 is an indoor square fillet cement culture Pond, length * width * height = 6 meters * 15 meters * 1.5 meters, easy to enter and discharge; The aeration system includes a vertical aeration aeration system, a jet flow aeration system and a pure oxygen aeration system, and the vertical aeration aeration system includes an aeration inlet pipe 3 positioned at both ends of the culture pond 1 and an aeration inlet pipe connected to the aeration inlet pipe. 3 connected dot-matrix aeration devices 4 laid flat on the bottom of the culture pond 1, the dot-matrix aeration devices 4 include a number of point-type aeration tubes evenly distributed in the horizontal direction, and the interval between adjacent point-type aeration tubes is 60cm , The point-type aeration pipe...

Embodiment 2

[0027]Embodiment 2: A three-dimensional aeration system suitable for biofloc culture. Taking the tilapia culture system as an example, it includes a culture pond 1 and an aeration system. The culture pond 1 is an indoor square fillet cement culture pond , length × width × height=6 meters × 25 meters × 2 meters, the water inlet and drainage are convenient; the middle part of the culture pond 1 is vertically provided with a water baffle 2, and the culture pond 1 forms an annular runway structure by the water baffle 2. The aeration system includes a vertical aeration aeration system, a jet flow aeration system and a pure oxygen aeration system, and the vertical aeration aeration system includes an aeration inlet pipe 3 positioned at both ends of the culture pond 1 and an aeration inlet pipe connected to the aeration inlet pipe. 3 connected dot-matrix aeration devices 4 laid flat on the bottom of the culture pond 1, the dot-matrix aeration devices 4 include a number of point-type a...

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Abstract

The invention discloses a three-dimensional oxygen aeration system and method applicable to biological flocculation breeding method, and belongs to the technical field of aquaculture. The system comprises a culture pond, a perpendicular aeration oxygenation system, a jet flow oxygenation system and a pure oxygen aeration system. The perpendicular aeration oxygenation system comprises an aeration air inlet pipe and a dot-matrix aeration device. The jet flow oxygenation system comprises a water pump, a water supply pipe, a jet device and an air suction and inlet pipe. One end of the air suction and inlet pipe is connected with the water supply pipe, and the other end of the air suction and inlet pipe stretches out of the water surface. The pure oxygen aeration system comprises an oxygen conveying pipe and an adjustable air head. The oxygen conveying pipe is connected with the air suction and inlet pipe through the adjustable air head. In the culture preliminary stage, only the perpendicular aeration oxygenation system is started for aeration; in the culture middle period, the jet flow oxygenation system is started again for aeration, and in the culture later period, the pure oxygen aeration system is properly started for aeration according to the dissolved oxygen phenomenon. On the basis of different periods of biological flocculation culture and control requirement, the proper oxygenation mode is selected to be enabled, and water dissolved oxygen can be kept to meet the requirement for biological culture growth all the time.

Description

technical field [0001] The invention is used in the technical field of aquaculture, and in particular relates to a three-dimensional aeration system and an aeration method suitable for the biological floc cultivation mode. Background technique [0002] Bio-floc Technology (Bio-floc Technology, BFT) is a relatively advanced aquaculture technology introduced in recent years. This technology was first proposed by Israeli aquaculture expert Yoram Avnimelech in 1999 and successfully tested in Indonesia in 2005. It is By manipulating the nutrient structure of the water body, adding organic carbon substances to the water body, adjusting the C / N value in the water body, and at the same time combining sufficient oxygenation and water agitation, promoting the metabolism and reproduction of heterotrophic bacteria in the water body, using microorganisms to assimilate inorganic nitrogen, The ammonia nitrogen and other aquaculture metabolic pollutants in the water body are converted into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K63/04
CPCA01K63/042
Inventor 董宏标张家松段亚飞李华刘青松
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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