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Aquaculture wastewater treatment process

A breeding sewage and process technology, which is applied in animal husbandry wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Deal with problems such as unsatisfactory effects, achieve the effect of improving the quality of agricultural products, reducing investment and operating costs, and facilitating industrial production

Inactive Publication Date: 2014-11-19
河南恒野农牧股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many studies on the treatment of farm wastewater at home and abroad, there are also some of the above-mentioned treatment methods, but based on the comprehensive analysis of the existing report data, no matter what method is currently used, the treatment effect is not ideal, or the quality of the effluent water is not up to the standard. emission requirements, or the cost is too high to be promoted and applied in my country
Large-scale pig farm wastewater is a k

Method used

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  • Aquaculture wastewater treatment process
  • Aquaculture wastewater treatment process

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] A process for treating aquaculture sewage, which includes the following steps:

[0017] Preparation of bacterial agent: mix the mixed bacterial liquid and sawdust at a weight ratio of 1:1, stir evenly, and then dry at 4°C at low temperature, and control the moisture content at 8% after drying to obtain; the mixed bacterial liquid has the following volume Mixture of raw material bacteria: 10 parts of Bacillus pumilus, 8 parts of Thiobacillus denitrificans, 6 parts of Alcaligenes faecalis, 5 parts of Pseudomonas aeruginosa, 2 parts of Bacillus cereus, 2 parts of Sphingosine Parts and 1 part of Rhodococcus; the concentration of the above-mentioned raw material bacteria is controlled at 1×10 8 Pcs / ml.

[0018] Impurity removal and sedimentation: The farming sewage passes through the grille and the muddy water separator in turn to remove solid materials such as pig manure and collect the solid materials, which can be used as organic fertilizer; then the sewage e...

Example Embodiment

[0021] Example 2

[0022] Take the pig farming wastewater of our company as an example to test the wastewater treatment effect of Example 1. As long as all indicators meet the ideal discharge standard, the testing indicators of farming wastewater are shown in Table 1:

[0023] Table 1 Parameters before and after sewage treatment

[0024] project name

Example Embodiment

[0025] Example 3

[0026] The influence of the bacterial fertilizer prepared in Example 1 of the present invention on the yield and quality of grapes. The test grapes were 3-year-old Kyoho, and ordinary soybean meal organic fertilizer was used as a control. Example 1 of the present invention was the test group; the application rate was 2 kg / plant per plant of the present invention and 2 kg / plant of ordinary organic fertilizer under routine management. The results are shown in Tables 2 and 3. The use of the present invention can increase the sugar-acid ratio and the degree of coloring of Kyoho grapes, and the fruit flavor is better; the use of the present invention also significantly increases the weight of individual grapes.

[0027] Table 2 The influence of the present invention on the yield of Kyoho grapes

[0028]

[0029] Table 3 The influence of the present invention on the quality of Kyoho grapes

[0030]

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Abstract

The invention belongs to the field of environmental protection technologies, and discloses an aquaculture wastewater treatment process. The aquaculture wastewater treatment process comprises the steps of bacterium agent preparation, impurity removal and precipitation, wastewater purification and microbial fertilizer preparation, and the like. According to the process technology disclosed by the invention, a compound bacterium agent is adopted, so that the process is environment-friendly and pollution-free; and a microbial fertilizer is used and prepared, so that no additional pollutant is produced in the whole process, thereby achieving the effect of changing waste material into things of value.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a process for treating aquaculture sewage. Background technique [0002] With the continuous expansion of intensive farming scale, metabolites produced by feeding, residual bait organic matter and ammonia nitrogen and other inorganic substances have become new sources of pollution. At the same time, the increasingly aging and polluted water environment has also restricted the further development of the aquaculture industry. Aquaculture wastewater has typical "three highs" characteristics, with CODcr as high as 3000-12000mg / l, ammonia nitrogen as high as 800-2200mg / l, and P exceeding the standard by dozens of times. The aquaculture industry is limited to a low-profit industry. The current treatment process can only greatly reduce CODcr, and there are still great technical and economic difficulties in meeting the emission standards of ammonia nitrogen. ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C05F11/08C02F103/20
Inventor 赖建彬曹玉良
Owner 河南恒野农牧股份有限公司
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