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Device for treating and recycling aquaculture water and treatment method thereof

An aquaculture and water treatment technology, which is applied in biological treatment devices, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the maintenance difficulties of deep foundation pits, high civil construction investment, and limit the wide range of deep bed filters. application and other issues, to achieve the effect of ensuring simple operability, reducing operating costs, and low investment in infrastructure costs

Active Publication Date: 2018-06-26
YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The depth of the deep bed filter is relatively deep, and the thickness of the filter material is greater than 1.8 meters. In special cases, the thickness of the filter material of the deep bed filter is as high as 4 meters or more. In the treatment plant, there may be problems such as difficult maintenance of deep foundation pits, and the investment in civil construction is much higher than that of ordinary filters. This shortcoming limits the wide application of deep bed filter technology in the field of water treatment
At present, there is no report on the application of deep bed filter technology in aquaculture water treatment and recycling

Method used

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  • Device for treating and recycling aquaculture water and treatment method thereof
  • Device for treating and recycling aquaculture water and treatment method thereof
  • Device for treating and recycling aquaculture water and treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The shrimp breeding base in the Yellow River Delta area carries out advanced treatment and recycling of tail water.

[0037] see figure 1 -a, the device includes a baffled deep bed filter system and a fault seepage reoxygenation nitrification bed. The system consists of a plurality of independent baffled deep bed filters (this embodiment has 3 independent baffled deep bed filters) connected in series to form a multi-stage baffled deep bed filter system, each independent baffled deep bed filter A baffle is inserted in the filter, and a water inlet and a water outlet are respectively arranged on the upper ends of both sides of the baffle deep bed filter system.

[0038] A water flow path is formed between the baffle plate inserted in each independent baffle deep bed filter in the baffle deep bed filter system and the pool wall of the baffle deep bed filter, and each water flow path is connected in sequence, wherein The top of the first water flow path and the last water...

Embodiment 2

[0053] Advanced treatment and recycling of tail water in a tilapia breeding pond.

[0054] see figure 2 -a, the device includes a baffled deep bed filter system and a fault seepage reoxygenation nitrification bed. The system consists of an independent baffle deep bed filter, and a plurality of baffles are inserted in the pool (5 baffles are set in this embodiment), which are laid equidistantly between the inlet section and the outlet section of the single filter system, A clapboard type multi-stage baffle deep bed filter system is formed, and the upper ends of both sides of the baffle deep bed filter system are respectively provided with a water inlet and a water outlet.

[0055] The first and last two baffles inserted in the baffle baffle single filter and the pool wall of the baffle deep bed filter, and between two adjacent baffles form a water flow path, and each water flow path is connected in sequence, wherein The top of the first water flow path and the last water flo...

Embodiment 3

[0070] A shrimp and shellfish polyculture pond system carries out advanced treatment and recycling of tail water.

[0071] see figure 2 -b, the device includes a baffled deep bed filter system and a fault seepage reoxygenation nitrification bed. The system consists of an independent baffle deep bed filter, and a plurality of baffles are inserted in the pool (5 baffles are set in this embodiment), which are laid equidistantly between the inlet section and the outlet section of the single filter system, A clapboard-type multi-stage baffle deep bed filter system is formed; the lower ends of both sides of the baffle deep bed filter system are respectively provided with water inlets and water outlets.

[0072] The first and last two baffles inserted in the baffle baffle single filter and the pool wall of the baffle deep bed filter, and between two adjacent baffles form a water flow path, and each water flow path is connected in sequence, wherein The top of the first water flow p...

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Abstract

The invention relates to the technical field of deep treatment and recycling of sewage and particularly relates to a device for treating and recycling aquaculture water and a treatment method. The device comprises a baffle deep-bed filtering tank system and a fault seepage reoxygenation nitration bed, wherein a water outlet of the baffle deep-bed filtering tank system is connected with a water inlet of the fault seepage reoxygenation nitration bed through a pipeline; the baffle deep-bed filtering tank system comprises at least one independent baffle deep-bed filtering tank; a water inlet and awater outlet are respectively formed in positions at the same height on two sides of the baffle deep-bed filtering tank system. The water quality indexes are monitored after the water is treated by the device; the pH is controlled to be 7.8-8.2; the content of ammonia nitrogen is less than 0.3mg / L; the content of nitrite is less than 0.1mg / L; the content of dissolved oxygen is not less than 4.0mg / L; the growth requirements of the aquaculture animals can be met, so that the aquaculture water can be deeply treated and recycled.

Description

technical field [0001] The invention relates to the technical field of advanced sewage treatment and resource utilization, in particular to an aquaculture water treatment and recycling device and treatment method. Background technique [0002] Factory farming is an important way of modern fish farming. Water environment pollution and frequent aquatic diseases caused by large-scale industrial farming have seriously plagued the development of my country's aquaculture industry. At present, the main method of industrial farming is the extensive "water intake-culture-straight row" farming model. Large-scale extensive industrial farming leads to water environmental pollution and frequent aquatic diseases. The reason is that the increasingly serious offshore pollution poses a great threat and harm to mariculture, resulting in an increase in the cost of industrial aquaculture water treatment. At the same time, a large amount of aquaculture wastewater discharge has a great impact on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/34A01K63/04C02F103/20
CPCA01K63/04C02F3/301C02F3/302C02F3/34C02F2103/20C02F2203/006C02F2301/08C02F2305/06
Inventor 吕剑张宇轩于晓斌武君
Owner YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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