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A kind of biological preparation for treating ammonia nitrogen sewage and its preparation method

A biological preparation and sewage technology, applied in the field of microorganisms, can solve the problems that the ammonia stripping method is not suitable for large-scale industrial application, the chemical method is easy to cause other pollution, and the enterprise is unacceptable, etc., so as to improve the biological oxidation efficiency and improve the biological treatment efficiency. , easy to accept effect

Inactive Publication Date: 2018-07-13
江苏睿智建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the breakpoint chlorination method, selective ion exchange method, and ammonia stripping method are not suitable for large-scale industrial applications, and chemical methods are likely to cause other pollution, and the cost is high, which is difficult for enterprises to accept

Method used

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  • A kind of biological preparation for treating ammonia nitrogen sewage and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A biological agent for treating ammonia nitrogen sewage, which is prepared according to the following method:

[0027] Step 1) Preparation of pasty feed liquid: dry the wheat straw and pulverize it into wheat straw powder with a pulverizer; dry the peanut shells and pulverize them into peanut hull powder with a pulverizer; In the stirring tank, add soybean meal and water, stir at a speed of 500 rpm for 15 minutes, then send the material in the stirring tank into the reactor, feed water vapor into the reactor, and maintain the temperature of the reactor at 95°C. Insulation reaction for 30 minutes, and finally natural cooling; the mass ratio of wheat straw powder, peanut shell powder, soybean meal and water is 1:2:3:5;

[0028] Step 2) Preparation of auxiliary materials for biological preparations: first, crush the zeolite to obtain zeolite powder with a particle size of 50 mesh, and then mix it with humic acid in a weight ratio of 1:2 to obtain the final product; the par...

Embodiment 2

[0033] A biological agent for treating ammonia nitrogen sewage, which is prepared according to the following method:

[0034] Step 1) Preparation of pasty feed liquid: dry the wheat straw and pulverize it into wheat straw powder with a pulverizer; dry the peanut shells and pulverize them into peanut hull powder with a pulverizer; In the stirring tank, then add soybean meal and water, stir at a speed of 500 rpm for 15 minutes, then send the material in the stirring tank into the reactor, feed water vapor into the reactor, and maintain the temperature of the reactor at 100°C. Insulation reaction for 30 minutes, and finally natural cooling; the mass ratio of wheat straw powder, peanut shell powder, soybean meal and water is 1:2:3:5;

[0035]Step 2) Preparation of auxiliary materials for biological preparations: first, crush the zeolite to obtain zeolite powder with a particle size of 100 mesh, and then mix it with humic acid in a weight ratio of 1:2 to obtain the final product; t...

Embodiment 3

[0047] Industrial application: This preparation is used to treat high-concentration ammonia-nitrogen industrial sewage from a fertilizer factory in Hedong District, Linyi City. First, remove suspended solids in the sewage, and then add hydrochloric acid to adjust the pH of the sewage to 7. Dosing per cubic meter of liquid each time Add 20 grams of biological agent once a day. After three days of continuous dosing, let it stand for another week, filter and sterilize the liquid, and finally discharge it. After testing, the preparation has a better effect of removing ammonia nitrogen, and the treatment effect is as follows in Table 1:

[0048] Table 1

[0049]

[0050] Conclusion: The biological preparation of the present invention can effectively remove ammonia nitrogen, sulfide and aniline substances in sewage, the removal effect is good, the discharge standard is met, the cost is low, and it can be accepted by enterprises.

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Abstract

The invention belongs to the field of microorganisms and discloses a biological agent for treating ammonia-nitrogen-containing wastewater. The biological agent comprises rhodococcus ruber, micrococcus luteus, enterococcus faecalis, acinetobacter baumannii, arthrobacter crystallopoietes, thiobacillus denitrificans and pseudomonas fluorescens. The biological agent comprises multiple strains, has the advantages of reasonable compatibility and strong synergic effect and can be used for effectively removing ammonia nitrogen, sulfide, aniline substances and industrial COD in wastewater.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and discloses a biological preparation for treating ammonia nitrogen sewage and a preparation method thereof. Background technique [0002] Ammonia nitrogen refers to nitrogen that exists in the form of free ammonia (NH3) and ammonium ions (NH4+) in water. The nitrogen content of animal organic matter is generally higher than that of vegetable organic matter. At the same time, nitrogen-containing organic matter in human and animal manure is very unstable and easily decomposed into ammonia. Therefore, when the content of ammonia nitrogen in water increases, it refers to the combined ammonia existing in the form of ammonia or ammonium ions. The characteristics of ammonia nitrogen sewage are that the pollutants are mainly ammonia nitrogen, the COD content of the pollutants is relatively high, the organic matter content in the water is relatively small, and the biodegradability is relatively...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C02F3/34C12R1/01C12R1/46C12R1/06C12R1/39
CPCC02F3/341C02F2101/16C12N1/20
Inventor 陈静龚艳华
Owner 江苏睿智建筑工程有限公司
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