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Method for reusing waste water of aquaculture

A technology for aquaculture and waste water production, which is applied in application, fish farming, climate change adaptation, etc., can solve the problems of high production costs and achieve the effect of reducing energy consumption

Inactive Publication Date: 2006-09-06
吕大伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to improve the deficiencies of the prior art and provide a method that overcomes the problem of high production costs due to regulation and control of water temperature in current aquatic seedling cultivation and cultivation, and uses the principle of heat exchange to recycle the energy in the seedling wastewater and reduce the production cost. Cost-effective and energy-saving aquaculture wastewater utilization method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, a kind of aquaculture waste water utilization method, is to prepare to be used for the natural seawater of cultivating or raising seedlings through sand filter, and the natural seawater after filtering flows into reservoir (or sedimentation pond) from heat exchange tube, The exchange pipe is set in the waste water tank, and the production waste water with a certain temperature used in mariculture is stored in the waste water tank, and the natural sea water and the production waste water conduct heat exchange, and the natural sea water absorbs the temperature of the production waste water, and flows into the water storage after reaching a certain temperature Pool storage, discharge of production wastewater after heat exchange, when natural seawater is needed, the seawater in the reservoir is pumped to the preheating pool or regulated by the refrigerator for production use, in order to ensure the heat exchange effect, the surface area of ​​the heat exchange tu...

Embodiment 2

[0011] Embodiment 2, a kind of aquaculture waste water utilization method, is on the basis of embodiment 1, and waste water pool can absorb solar energy simultaneously while keeping warm, to raise waste water temperature, utilizes plastic greenhouse to cover waste water pool to absorb solar energy in this embodiment, waste water is in The waste water pond can be divided into different temperature gradients for exchange, that is, the waste water pond is divided into several sections to improve heat exchange efficiency, and the others are exactly the same as in embodiment 1. .

Embodiment 3

[0012] Embodiment 3, a kind of aquaculture waste water utilization method, is on the basis of embodiment 1, waste water pond can be replaced by sewer, as long as it has the function of temporarily storing waste water, what is engaged in is the aquaculture production that needs cooling, then the waste water pond Carry out shading and heat insulation treatment to ensure the temperature of the waste water. The waste water can be divided into different temperature gradients in the waste water pool for exchange, that is, the waste water pool is divided into several sections to improve the heat exchange efficiency. Others are exactly the same as in Example 1.

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Abstract

The invention discloses a method of using wastewater for aquaculture. The clean seawater is filtered through sand filter and exchanges heat with production wastewater through heat exchanger in the waste disposal basin, and then the heating-up or heating-down seawater is stored in laying-up basin and is introduced into preheating tank or refrigerating machine for cultivating production. The invention solves the high cost in current aquaculture because of the water temperature adjustment, and makes use of the heat exchange law to restore the energy in breeding wastewater to reduce production cost and save energy.

Description

1. Technical field [0001] The invention belongs to the technical field of mariculture, and in particular relates to a method for utilizing aquaculture wastewater. 2. Background technology [0002] At present, in the field of marine aquaculture, the well-known seedling and aquaculture industry has the characteristics of high risk and high output. The high risk is mainly reflected in the heating of seawater by boilers, the cooling of seawater by refrigerators, and the extraction of deep underground seawater in turbot aquaculture. All of these need to consume a large amount of coal and electricity, which consumes a lot of energy and production costs are extremely high; under normal circumstances, in terms of seedling production, the energy consumption cost of raising seedlings for 1,000 cubic meters of water body is about 200,000 yuan a year, while The cost of electricity required for the cooling and seedling production of kelp is higher; in terms of turbot breeding, it also co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01K63/04
CPCY02A40/81
Inventor 吕大伟
Owner 吕大伟
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