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Large-volume three-dimensional circulating aquaculture system

A recirculating 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 the lifting capacity of the water body

Inactive Publication Date: 2012-09-26
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 of the recirculating aquaculture system, and provide a recirculating aquaculture system with a simple structure and a higher degree of integration

Method used

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Embodiment Construction

[0013] The large-volume fish pond represented by accompanying drawing 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. Box 3, which can harvest farmed fish conveniently; the middle 2 / 5 of the large-volume fish pond is the biofilm purification zone 4, and the aquaculture wastewater in the fish farming zone flows into this zone under the action of gravity, and is mixed with the polyolefins filled in this zone. It is in full contact with the microbial biofilm grown on the high-density three-dimensional elastic filler of polyamide composite material, so as to realize the efficient removal of ammonia nitrogen and other toxic nitrogen wastes in the aquaculture water; the bottom 1 / 5 of the large-volume fish pond is a sharp-bottomed mud collection area and shellfish Filtration and purification zone 5, the aquaculture water treated by biofilm purification flows downward into this area, so that organic part...

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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 isarranged 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; andthe 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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Patent Type & Authority Patents(China)
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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