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Method for controlling nitrite in water body

A nitrite and water technology, which is applied in the field of environmental treatment, can solve the problems of excessive nitrite content, excessive nitrite in aquaculture waters, harm, etc., and achieves the improvement of vitality, rapid and stable reduction of nitrite, and large specific surface area. Effect

Active Publication Date: 2015-08-19
成都八八五生物科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is that due to industrial or agricultural pollution, the nitrite content in external water sources exceeds the standard. This polluted water is pumped into the pond, causing the nitrite in the breeding waters to seriously exceed the standard.
[0005] 2. Cause harm

Method used

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  • Method for controlling nitrite in water body
  • Method for controlling nitrite in water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Make the attachment bed of nitrifying bacteria: the attachment bed consists of a columnar shell and mesh end caps arranged at both ends of the shell. The shell is filled with porous loose packing. Connect the air pump through the airway tube.

[0033] (2) Prepare bacterial cells in the attachment bed: immerse the attachment bed prepared in step (1) into the bacterial colony culture solution, blow air through the air pump, control the temperature of the culture solution at 25°C, and cultivate for 48 hours;

[0034] (3) Put the attached bed treated in step (2) into the pretreated water body, and blow air intermittently.

[0035] The weight composition of porous loose packing is:

[0036] 20 parts of diatomaceous earth,

[0037] 40 parts of slag powder,

[0038] 15 parts of polyvinyl chloride foamed particles.

[0039] The bacteria group culture solution contains activated cultured nitrosifying bacteria, nitrifying bacteria, denitrifying bacteria, Bacillus subtilis...

Embodiment 2

[0041] (1) Make the attachment bed of nitrifying bacteria: the attachment bed includes a columnar shell and mesh end caps arranged at both ends of the shell. The shell is filled with porous loose packing. Connect the air pump through the airway tube.

[0042] (2) Prepare bacterial cells in the attachment bed: immerse the attachment bed prepared in step (1) into the culture solution of bacterial colonies, blow air through the air pump, control the temperature of the culture solution at 28°C, and cultivate for 24 hours;

[0043] (3) Put the attached bed treated in step (2) into the pretreated water body, and blow air intermittently.

[0044] The weight composition of porous loose packing is:

[0045] 30 parts of diatomaceous earth,

[0046] 30 parts of slag powder,

[0047] 20 parts of polyvinyl chloride foamed particles.

[0048] The bacteria group culture solution contains activated cultured nitrosifying bacteria, nitrifying bacteria, denitrifying bacteria, Bacillus subtil...

Embodiment 3

[0050] (1) Make the attachment bed of nitrifying bacteria: the attachment bed includes a columnar shell and mesh end caps arranged at both ends of the shell. The shell is filled with porous loose packing. Connect the air pump through the airway tube.

[0051] (2) Prepare bacterial cells in the attachment bed: immerse the attachment bed prepared in step (1) into the bacterial colony culture solution, blow air through the air pump, control the temperature of the culture solution at 26°C, and cultivate for 30 hours;

[0052] (3) Put the attached bed treated in step (2) into the pretreated water body, and blow air intermittently.

[0053] The weight composition of porous loose packing is:

[0054] 25 parts of diatomaceous earth,

[0055] 35 parts of slag powder,

[0056] 18 parts of polyvinyl chloride expanded particles.

[0057] The bacteria group culture solution contains activated cultured nitrosifying bacteria, nitrifying bacteria, denitrifying bacteria, Bacillus subtilis ...

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PUM

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Abstract

The invention discloses a method for controlling nitrite in a water body. The method comprises the following steps of step 1, producing a nitrifying bacteria attachment bed which comprises a cylindrical casing and mesh end covers, wherein the mesh end covers are arranged at two ends of the casing respectively, the casing is filled with porous loose packing, the casing is provided with an air guide hole which is communicated with the inside of the casing, and the air guide hole is connected with an air pump through an air guide pipe; step 2, preparing thalli in the attachment bed, wherein the preparation process comprises immersing the attachment bed which is produced in the step 1 into a bacteria group culture solution, controlling the temperature of the culture solution at 25 to 28 DEG C through air blast of the air pump and 24 to 48 hours of culture is performed; step 3, putting the attachment bed after treatment in the step 2 into the pretreatment water body and performing intermittent air blast. According to the method for controlling the nitrite in the water body, the special attachment bed is adopted, the specific surface area is large, and accordingly the good growth environment can be provided for a bacteria group and the sufficient oxygen supply can be provided for the growth of nitrifying bacteria due to the air pump particularly and accordingly the activity of the bacteria group is improved; the bacteria group is carefully proportioned and accordingly ammonia and the nitrite in the water body can be effectively removed; the cost is low, the maintenance is convenient, and the ammonia and nitrite reduction is rapid and stable.

Description

technical field [0001] The invention belongs to the field of environmental treatment, and in particular relates to a method for controlling nitrite in water. Background technique [0002] Nitrite is an important physical and chemical indicator of water quality in aquaculture. Elevated nitrite content not only indicates the lack of oxygen at the bottom of the pond and the deterioration of aquaculture water quality, but also causes aquatic animals to easily suffer from diseases. The formation, harm and solution of nitrite are analyzed as follows: [0003] 1. Causes [0004] In the nitrogen cycle, ammonia nitrogen is further oxidized to nitrous acid under the action of nitrosating bacteria, which forms nitrite after it combines with cations in water. Nitrite is an intermediate product in the process of converting ammonia into nitrate. One is the residual bait left by a large number of baits in the middle and late stages of breeding, the accumulation of a large amount of excre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/10C02F101/16
CPCY02W10/10
Inventor 万大奎
Owner 成都八八五生物科技发展有限公司