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Animal husbandry breeding wastewater treatment method and system

A technology for aquaculture wastewater and a treatment method, which is applied in the field of animal husbandry aquaculture wastewater treatment, can solve the problems of poor separation effect, low efficiency of biological treatment of wastewater, etc. Effect

Inactive Publication Date: 2020-08-11
贵州金农富平生态农牧科技有限公司
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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 solve the problem that the separation effect of the solid-liquid separation process is poor, which leads to the low efficiency of the subsequent biological treatment of wastewater, and proposes a treatment method and system for animal husbandry wastewater

Method used

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  • Animal husbandry breeding wastewater treatment method and system
  • Animal husbandry breeding wastewater treatment method and system
  • Animal husbandry breeding wastewater treatment method and system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A treatment method and system for animal husbandry wastewater, comprising the following steps:

[0026] S1. Use the grid to filter the suspended or floating large particles in the aquaculture wastewater, such as residual feed and dung, to avoid blockage of valves and pipes;

[0027] S2. Transfer the breeding wastewater filtered by the grid into the regulating pool, reduce the fluctuation of the wastewater flow in the treatment system, and the average flow rate, prevent the impact of excessive wastewater treatment load on the wastewater treatment facilities in a short period of time, and ensure that the wastewater of each time period of the treatment facility The quantity is relatively stable;

[0028] S3. The aquaculture wastewater in the regulating tank is transported to the capillary solid-liquid separation tank through the pipeline, and the aquaculture wastewater is subjected to solid-liquid separation through the capillary solid-liquid separation tank to improve the...

Embodiment 2

[0037] Embodiment 2: Based on Embodiment 1, the difference is:

[0038] Below is the technological operation status that carries out test according to embodiment 1, and concrete result is with reference to following table 1:

[0039] Table 1 Test operation parameters

[0040]

[0041] Refer to Table 1 above and figure 1 , it can be seen that under aerobic conditions, heterotrophic bacteria grow rapidly, and the nitrification by autotrophic nitrifying bacteria is relatively slow, and autotrophic nitrifying bacteria can only grow rapidly after the oxidation of organic matter is basically completed. The ability of autotrophic nitrifying bacteria to compete for dissolved oxygen is inferior to that of heterotrophic bacteria. Therefore, the nitrification process in the denitrification process requires a large tank volume. figure 1 It can be seen that as the concentration of influent organic matter increases, the inhibition of nitrification rate gradually increases. However, as...

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Abstract

The invention discloses an animal husbandry breeding wastewater treatment method and system, and belongs to the field of breeding wastewater treatment. According to the animal husbandry breeding wastewater treatment method and system, solid-liquid separation is conducted on breeding farm wastewater, the subsequent treatment efficiency can be improved, separated solid substances can be turned intowealth, the ecological environment of rural areas in China is improved, and meanwhile healthy development of agriculture and animal husbandry is achieved. Therefore, solid-liquid separation of the farm wastewater has social benefits and economic benefits, the problem of sedimentation of excrement residues in a biogas digester can be solved, air holes are prevented from being blocked by the residues, and the effect of the treatment process is brought into full play; and COD in the wastewater can be reduced to a great extent through solid-liquid separation, the volume load of anaerobic treatmentis reduced, and the volume and the occupied area of an anaerobic treatment device are reduced.

Description

technical field [0001] The invention relates to the field of aquaculture wastewater treatment, in particular to a treatment method and system for animal husbandry aquaculture wastewater. Background technique [0002] With the improvement of people's living standards, my country's livestock and poultry breeding industry has developed rapidly. The chemical oxygen demand discharged by the national livestock and poultry breeding industry reached 12.6826 million tons, accounting for 96% of the total discharge from agricultural sources; the discharge of total nitrogen and total phosphorus was 1.0248 million tons and 160,400 tons, respectively accounting for 96% of the total discharge from agricultural sources. 38% and 56%. Livestock and poultry breeding wastewater has become the third largest source of pollution after industrial wastewater and domestic sewage. Therefore, how to deal with livestock and poultry breeding pollutants on a large scale has become an urgent problem to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C05F15/00C05F17/50C02F101/10C02F101/16C02F101/30C02F103/20
CPCC02F9/00C05F3/00C05F17/00C02F1/001C02F3/32C02F3/12C02F2101/16C02F2101/105C02F2101/30C02F2103/20Y02W30/40
Inventor 韩永芬付薇马培杰孟军江覃涛英马宁李娟
Owner 贵州金农富平生态农牧科技有限公司
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