A fish-bacteria-algae symbiosis ecological breeding system and its operation method

An ecological breeding and aeration system technology, applied in the field of fish-bacteria-algae symbiosis ecological breeding system, can solve the problems of non-reuse of organic matter, pollution of surrounding water bodies, low nitrogen utilization rate, etc., to reduce aeration costs, strengthen Water purification ability and the effect of improving utilization efficiency

Active Publication Date: 2019-02-12
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes a fish-bacteria-algae symbiotic ecological breeding system in order to overcome the shortcomings of the traditional aquaculture model, such as high aeration cost, non-recyclable organic matter, pollution of surrounding water bodies, low nitrogen utilization rate, etc.

Method used

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  • A fish-bacteria-algae symbiosis ecological breeding system and its operation method
  • A fish-bacteria-algae symbiosis ecological breeding system and its operation method
  • A fish-bacteria-algae symbiosis ecological breeding system and its operation method

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Embodiment 1

[0037] combine figure 1 Further illustrate technical scheme of the present invention, as follows:

[0038] The present invention is mainly composed of a fish pond 1, a flat photobioreactor 2 for cultivating microalgae and bacteria, a water delivery system, an external light source 9, two plate-shaped membrane modules 6 and an aeration system 5.

[0039] figure 1 Among them, the fish pond 1 is used for fish farming, which can be excavated from the land and covered with high-density polyethylene for anti-seepage treatment, wherein the fish 3 is economical fish species carp. The microalgae selects chlorella, and the bacterium selects nitrifying bacteria. The external light source 9 is an LED white light lamp.

[0040] The flat-plate photobioreactor 2 is made of plexiglass and is a cuboid as a whole. The ratio of height to base length is 3:1. Air port 8.

[0041]The plate-shaped membrane module 6 includes a membrane and a supporting material for fixing the membrane, the membr...

Embodiment 2

[0048] combine figure 2 Further illustrate technical scheme of the present invention, as follows:

[0049] The present invention is mainly composed of a fish pond 1, a columnar photobioreactor 15, a water delivery system, a built-in strip light source 14, a cylindrical membrane module 16 and an aeration system 5.

[0050] figure 2 Among them, the reactor for cultivating bacteria and algae is a columnar photobioreactor 15, whose shape is characterized in that it is a cylinder, made of organic glass, and its inner diameter is not more than 30cm to effectively use the light. The aspect ratio, optionally, is 6:1; the light source adopts a built-in strip light source 14, which is an LED white light strip, and is evenly distributed and wound on the cylindrical membrane module 16, so that the microalgae receive uniform illumination; The membrane module 16 is a non-woven membrane, which is fixed on the slot 10 in the reactor; the aeration head is placed at the bottom of the column...

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Abstract

The invention discloses a fish-bacterium-algae-symbiotic ecological breeding system and a running method thereof. The fish-bacterium-algae-symbiotic ecological breeding system and the running method mainly aim at reducing aerating cost, improving the use efficiency of nitrogen and organisms and improving purification of breeding waste water. The system is composed of a fishpond, a photobioreactor, a membrane assembly, a light source and an aerating system, and is characterized in that aquaculture is combined with a bacterium-algae-symbiotic system and the membrane technology, the photosynthesis of microalgae continues, the dissolved oxygen concentration of processed waste water is high, healthy breeding of fishes is guaranteed, and aerating cost is reduced; due to excellent organism degradation and absorption of bacteria, the organism recycling capacity of the system is improved; due to the comprehensive synergistic effect of microalgae and microorganisms, waste water processing efficiency is improved; as microalgae absorb nitrogen substances, the nitrogen use efficiency of the system is improved; in addition, due to the adoption of the membrane technology, microalgae can be more easily harvested.

Description

technical field [0001] The invention belongs to the field of aquaculture, and specifically relates to a fish-bacteria-algae symbiotic ecological breeding system and an operating method. Background technique [0002] The massive discharge of aquaculture wastewater not only affects the water quality of its surrounding water bodies, but also has become the main factor seriously restricting the rapid development of the industry. Wastewater contains a large amount of unused nitrogen-containing organic matter, which can easily cause eutrophication of surrounding water bodies. The recirculating aquaculture system provides an effective method and idea to solve this problem. Among them, the fish and vegetable symbiosis system not only has considerable fish and vegetable production, but also has almost no waste water discharge. However, this system consumes more energy than the traditional farming model; during operation, fish and vegetables have insufficient recycling capacity for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K63/00A01K63/04A01G33/00C02F3/32C02F3/34C02F3/10
CPCA01G33/00A01K63/003A01K63/042C02F3/102C02F3/327C02F3/341Y02A40/80Y02W10/10Y02W10/37
Inventor 胡振方颖珂邹艺娜
Owner SHANDONG UNIV
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