Prawn circulating aquaculture system and operation method

A technology for recirculating aquaculture and prawns, which is applied in fish farming, antifouling/underwater coatings, and biocide-containing paints to achieve safe silver ion concentration, good bacteriostatic effect, and low energy consumption.

Inactive Publication Date: 2015-05-20
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the fact that this model involves many disciplines and technologies, the investment in facility construction and equipment is large, and the energy consumption in operation is high, which limits its wide application and promotion.

Method used

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  • Prawn circulating aquaculture system and operation method
  • Prawn circulating aquaculture system and operation method
  • Prawn circulating aquaculture system and operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The inner wall of the breeding pond is coated with nano-functional coating 6; several aeration and water purification devices 8 positioned by hoops 7 are evenly arranged along the wall of the pond, and the water outlet 9 is arranged tangentially to the wall of the breeding pond; the bottom center of the breeding pond is provided with Sewage outlet 10;

[0032] The aeration combination device is composed of a right-angle elbow 81, a diversion standpipe 82, a suspension filler 83, and an aeration component 84; The filling rate of suspended filler in the riser is 65%.

[0033] The diversion riser also has a built-in aeration component 84, which is located in the suspended packing 83; the aeration component is composed of an air stone 85 and a soft air pipe 86; the air stone communicates with the soft air pipe through the end air port; The trachea is placed outside the water outlet of the right-angle elbow; the filter materials in the diversion standpipe are connected by a...

Embodiment 2

[0041] The air flotation chamber has a built-in air flotation machine 18 with a power of 0.75kw; the biological filter chamber has a built-in circulating water pump 19 and suspended filler 20 with a power of 3.0kw, and the filling rate of the suspended filler in the biological filter chamber is 30%.

[0042] Air flotation contact time: 2.5min, separation and sedimentation time: 30min.

[0043] Others are the same as embodiment 1.

[0044]According to the above-mentioned circulating aquaculture system for prawns, the operation method is to start the aeration component in the early stage of cultivation, and the water flow will form a micro-flow internal circulation under the promotion of air lift to maintain good water quality; in the middle and late stages of cultivation, the organic load will increase. On this basis, the circulating water pump is started again, and the water flows from the inside to the outside to complete the external circulation. This greatly reduces energy...

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Abstract

The invention relates to a prawn circulating aquaculture system and an operation method. The inner wall of an aquaculture pool is coated with a nano-functional coating; a plurality of aeration water purification combination devices positioned through hoops are arranged along the pool wall, and water outlets of the aeration water purification combination devices and the aquaculture pool wall are tangentially arranged. A pollution discharge opening is formed in the center of the bottom of the aquaculture pool; a water inlet is formed in one lateral wall of an air flotation chamber of a comprehensive pool, and a pollution discharge opening is formed in the bottom of the air flotation chamber of the comprehensive pool and is not communicated with the bottom of a separation sediment chamber; a slag discharge opening is formed in the upper edge of one side of the separation sediment chamber, and a pollution discharge opening is formed in the bottom and is communicated with the bottom of a biological filtration chamber. An air flotation machine is arranged in the air flotation chamber; a circulating water pump and suspended fillers are arranged in the biological filtration chamber; the pollution discharge opening in the bottom of the aquaculture pool is communicated with a water inlet of the air flotation chamber of the comprehensive pool through a circulating pipe; a water outlet of the water pump is connected with the aquaculture pool through a circulating pipe; the pollution discharge openings are communicated with a pollution discharge pipe, and a control valve is arranged at one end of the pollution discharge pipe; the slag discharge opening is communicated with the pollution discharge pipe. The operation method includes the steps that the aeration water purification combination devices are started in the early stage; the circulating water pump is started in the middle and later stage of aquaculture, and external circulation of water flow is completed from inside to outside.

Description

technical field [0001] The invention relates to an aquaculture system and an operation method, in particular to a prawn industrialized circulating aquaculture system and an operation method. current technology [0002] For a long time, the traditional extensive management and resource-dependent production mode has been the main production mode of shrimp farming in my country. While this model seriously pollutes the aquaculture waters, it is also increasingly affected by the polluted environment, such as frequent disease and germplasm degradation, which greatly affects the further development of the shrimp aquaculture industry. With the rapid development of social economy and the continuous improvement of human environmental and ecological requirements, the recirculating aquaculture model has attracted widespread attention due to its own characteristics. However, because this model involves many disciplines and technologies, the investment in facility construction and equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00C09D1/00C09D5/14
CPCY02A40/81A01K63/003A01K63/042A01K63/045C09D1/00C09D5/14
Inventor 杨菁管崇武宋红桥
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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