Large-volume three-dimensional circulating aquaculture system

A circulating aquaculture, large-volume technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of high energy consumption in operation, low level of equipment integration, etc., to improve the state of water flow, improve the efficiency of water purification, The effect of improving space utilization and nutrient utilization

Inactive Publication Date: 2011-06-15
SHANGHAI OCEAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems of low level of equipment integration and high energy consumption in operation

Method used

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  • Large-volume three-dimensional circulating aquaculture system
  • Large-volume three-dimensional circulating aquaculture system

Examples

Experimental program
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Example Embodiment

[0013] The large-volume fish pond shown in the figure is 5 meters deep and has a volume of 1800 cubic meters. The upper 2 / 5 of the large-volume fish pond 1 is the fish breeding area 2. When the cultured fish reaches the market size, the net laid on the inside of the pond wall is lifted Box 3, can easily harvest farmed fish; the middle 2 / 5 of the large-volume fish pond is the biofilm purification zone 4. The farming wastewater from the fish farming zone flows into this area under the action of gravity, and is filled with polyolefins in this area Fully contact with the microbial biofilm grown on the high-density three-dimensional elastic filler of the polyamide composite material to achieve the efficient removal of toxic nitrogen waste such as ammonia nitrogen in the aquaculture water; 1 / 5 of the bottom of the large-volume fish pond is a sharp-bottomed mud collection area and shellfish Filter purification zone 5, where the aquaculture water purified by the biofilm flows down into ...

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Abstract

The invention provides a large-volume three-dimensional circulating aquaculture system, which is simply structured and integrated. The large-volume three-dimensional circulating aquaculture system adopts a large-volume fishpond and an intermittent air lifting pump, and is characterized in that: the upper part of the large-volume fishpond is provided with a fish culture zone in which a net cage is arranged for culturing fishes; the middle part of the fishpond is provided with a biomembrane purification zone which is filled with a high-density three-dimensional elastic filler for highly-efficiently removing toxic nitrogenous wastes of ammonia nitrogen in culture water; the bottom of the large-volume fishpond is provided with a sharp bottomed mud collecting zone and a shellfish filtering purification zone for treating culture water precipitates, and a blowdown pipe is arranged at the sharp bottom; the intermittent air lifting pump is formed by connecting a bottom water inlet pipe, a collection chamber and a vertical water outlet pipe in series; the bottom water inlet pipe is connected with the blowdown pipe at the sharp bottom; an air inlet hole is formed on the lateral part of the upper end of the collection chamber, and is connected with a fan; a filter bag is arranged at the top end of the vertical water outlet pipe, and intercepts suspended particles in the culture water; and the culture water flows back to the large-volume fishpond.

Description

technical field [0001] The invention belongs to an aquaculture system, in particular integrating the functions of fish breeding, microbial water quality purification and shellfish filtration and purification in a large-volume fish pond, with a three-dimensional layout, and realizing water body exchange and oxygenation through intermittent air lift pumps Aquaculture system. Background technique [0002] In the traditional high-density recirculating aquaculture system, physical, biological and chemical methods are mainly used to realize the purification and recovery of aquaculture water. The conventional processes include solid-liquid separation, biological filtration, foam separation, etc., but through the existing water purification unit Assembling and configuring, it is difficult to reduce the scale of water treatment devices and system energy consumption, and it is difficult to increase the degree of integration of water treatment units. At the same time, in the actual po...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K63/04
CPCY02A40/81
Inventor 谭洪新罗国芝孙大川
Owner SHANGHAI OCEAN UNIV
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