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Aquaculture wastewater treatment process

A technology for aquaculture and wastewater treatment, which is applied in animal husbandry wastewater treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc.

Inactive Publication Date: 2019-06-14
长沙如洋环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of aquaculture wastewater treatment process, to solve how to optimize the process on the basis of the Chinese patent document "A treatment process for aquaculture wastewater (Patent No.: ZL201610313620.X)" to reduce aquaculture wastewater The problem of COD in chemical oxygen demand

Method used

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preparation example Construction

[0036] The preparation method of described aquaculture wastewater treatment agent, comprises the following steps:

[0037] S1: Weigh raw materials by weight;

[0038] S2: Take ammonium persulfate, bentonite, potassium humate, fatty alcohol polyoxyethylene ether ammonium sulfate, add 10-12 times the water and let it stand for 13-15 hours, take it out and put it in a cool place and spread it out to dry until the moisture content is 4%-6 %, then pulverized to obtain material A;

[0039] S3: Add potassium silicate, diisopropylcarbodiimide, and bacterial extracellular enzyme to the material A prepared in step S2, mix and stir at 48-52°C for 26-30min, and then pulverize to obtain aquaculture wastewater treatment agent;

[0040] (4) filtering to remove the solid content in the aquaculture wastewater after step (3) treatment;

[0041] (5) Add deodorizing and decolorizing agent to the aquaculture wastewater after step (4) removes solid content, and stir for 4-6h, wherein the addition ...

Embodiment 1

[0045] A kind of aquaculture wastewater treatment process, comprises the following steps:

[0046] (1) Removing solid waste in aquaculture wastewater by sedimentation;

[0047] (2) aerating the aquaculture wastewater treated in step (1) for 3.2 hours;

[0048] (3) Add the aquaculture wastewater treatment agent to the aquaculture wastewater treated in step (2), the temperature of the aquaculture wastewater before adding the aquaculture wastewater treatment agent is 32°C, and the addition amount of the aquaculture wastewater treatment agent is 13.1kg / m 3 , while aerating the aquaculture wastewater for 25 hours;

[0049] The aquaculture wastewater treatment agent, in parts by weight, comprises the following components: 24 parts of potassium silicate, 8 parts of diisopropylcarbodiimide, 4 parts of ammonium persulfate, 0.6 part of bacterial extracellular enzyme, bentonite 6 parts, potassium humate 2 parts, fatty alcohol polyoxyethylene ether ammonium sulfate 0.7 part.

[0050] ...

Embodiment 2

[0059] A kind of aquaculture wastewater treatment process, comprises the following steps:

[0060] (1) Removing solid waste in aquaculture wastewater by sedimentation;

[0061] (2) aerating the aquaculture wastewater treated in step (1) for 4.6 hours;

[0062] (3) Add the aquaculture wastewater treatment agent to the aquaculture wastewater treated in step (2), the temperature of the aquaculture wastewater before adding the aquaculture wastewater treatment agent is 35°C, and the addition amount of the aquaculture wastewater treatment agent is 17.5kg / m 3 , while aerating the aquaculture wastewater for 23 hours;

[0063] The aquaculture wastewater treatment agent comprises the following components: 32 parts of potassium silicate, 10 parts of diisopropylcarbodiimide, 5 parts of ammonium persulfate, 0.6 part of bacterial extracellular enzyme, 9 parts of bentonite, humic acid Potassium 2.4 parts, fatty alcohol polyoxyethylene ether ammonium sulfate 0.5 parts.

[0064] The prepar...

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Abstract

The invention discloses an aquaculture wastewater treatment process. The process comprises the following steps: (1) removing solid waste from aquaculture wastewater with a precipitating method; (2) aerating the aquaculture wastewater treated in the step (1) for 3 to 5 hours; (3) adding an aquaculture wastewater treatment agent into the aquaculture wastewater treated in the step (2) at an amount of12.4 to 18.6 kg / m<3>, and meanwhile aerating the aquaculture wastewater for 17 to 26 hours; (4) removing solid content from the aquaculture wastewater treated in the step (3) by filtering; (5) addinga deodorizing-decolorizing agent into the aquaculture wastewater from which the solid content is removed in the step (4) at an amount of 19.2 to 28.5 kg / m<3>, and stirring for 4 to 6 hours, and (6) precipitating and filtering to remove the solid content from the aquaculture wastewater treated in the step (5).

Description

technical field [0001] The invention belongs to the technical field of aquaculture wastewater treatment, and in particular relates to an aquaculture wastewater treatment process. 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 2 / 3 of the world's aquaculture production. my country's current aquaculture industry is in a historical transition period from the traditional high-yield stocking model to large-scale farming, quality and benefit. , and in the process of aquaculture, the feed residues and pollutants formed by the excrement of fish, shrimp, and crabs have polluted the water body and pond sediment, making the aquaculture water body increasingly eutrophic, and affecting the surrounding water environment and ecological environment. caused increasing harm. In the aquaculture areas along some slow-flow shallow grass lakes, under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52C02F1/54C02F1/40C02F101/30C02F103/20
Inventor 不公告发明人
Owner 长沙如洋环保科技有限公司
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