Purifying technology for aquaculture wastewater

A purification process and aquaculture technology, applied in animal husbandry wastewater treatment, water/sewage multi-stage treatment, oxidized water/sewage treatment, etc., can solve the problems of easily polluting the surrounding environment, large waste of water resources, etc., and reduce the cost of aquaculture. , purifying sewage, low cost effect

Inactive Publication Date: 2019-03-22
福海县德盛水产有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the wastewater produced by aquaculture is mainly discharged directly. This treatment method wastes a lot of water resources and is easy to pollute the surrounding environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Technical scheme of the present invention is:

[0024] (1) Use a pump to remove the sewage from the bottom of the fish pond, and filter the sewage through a microfilter.

[0025] Since most of the remaining residual bait and aquaculture biological excrement in the aquaculture wastewater exist in the form of large suspended particles, physical filtration is the fastest way to remove them. There is zeolite in the microfiltration machine, and the zeolite filter has both filtration and adsorption functions, which can not only remove suspended solids, but also effectively remove dissolved pollutants such as heavy metals and ammonia nitrogen through adsorption.

[0026] (2) Pass the filtered sewage through the aeration tank for aeration treatment.

[0027] The aeration tank is a structure for sewage treatment using the activated sludge method. A certain sewage residence time is provided in the pool to meet the oxygen required by aerobic microorganisms and the mixing conditi...

Embodiment 2

[0035] The specific operation steps are as follows:

[0036] (1) Use a pump to remove the sewage from the bottom of the fish pond, and filter the sewage through a microfilter.

[0037] (2) Pass the filtered sewage through the aeration tank for aeration treatment.

[0038] (3) Add composite bacteria agent to the sewage after aeration treatment, start the water inlet pump and air pump at 38°C, adjust the water inlet flow and air flow, and perform probiotic treatment. The composite bacterial agent is a mixed microbial agent of photosynthetic bacteria, lactic acid bacteria and bacillus.

[0039] After testing, ammonia nitrogen dropped from 10mg / L to below the detectable range.

[0040] (4) After the sewage treated with probiotics is filtered, it is circulated to the culture pond and used again for aquaculture.

[0041] The purification process of aquaculture wastewater described in the embodiment of the present invention is simple and low in cost, mainly through aeration treatm...

Embodiment 3

[0043] The specific operation steps are as follows:

[0044] (1) Use a pump to remove the sewage from the bottom of the fish pond, and filter the sewage through a microfilter.

[0045] (2) Pass the filtered sewage through the aeration tank for aeration treatment.

[0046] (3) Add compound bacterial agent to the sewage after aeration treatment, start the water inlet pump and air pump at 35°C, adjust the water inlet flow and air flow, and perform probiotic treatment. The composite bacterial agent is a mixed microbial agent of photosynthetic bacteria, lactic acid bacteria and bacillus.

[0047] After testing, ammonia nitrogen dropped from 11mg / L to below the detectable range.

[0048] (4) After the sewage treated with probiotics is filtered, it is circulated to the culture pond and used again for aquaculture.

[0049] The purification process of aquaculture wastewater described in the embodiment of the present invention is simple and low in cost, mainly through aeration treatm...

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PUM

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Abstract

The invention relates to a purifying technology for aquaculture wastewater. The purifying technology for aquaculture wastewater comprises a step of performing probiotics treatment after performing aeration treatment on wastewater. The purifying technology for aquaculture wastewater provided by the invention is simple and low-cost; aeration treatment is mainly adopted for removing harmful gases andachieving an oxidized effect; probiotics treatment is adopted for removing harmful bacteria from wastewater, so that the aquaculture wastewater can be effectively purified, wastewater can be reused for aquaculture and aquaculture cost can be lowered.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a purification process for aquaculture wastewater. Background technique [0002] In recent years, intensive aquaculture has developed rapidly at home and abroad, especially in my country, and its aquaculture production has accounted for about two-thirds of the world's aquaculture production. my country's current aquaculture is in a historical transition period from the traditional high-yield stocking model to large-scale farming and quality benefits. Pollutants formed by feed residues and excrement put in during the aquaculture process pollute the water body and the bottom mud of the water body, making the aquaculture water body increasingly eutrophic and causing more and more harm to the surrounding water environment and ecological environment . If the aquaculture wastewater is not ecologically treated and recycled, then the aquaculture industry, which consumes natural res...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/74C02F3/341C02F9/00C02F2103/20
Inventor 陈勇德
Owner 福海县德盛水产有限公司
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