Biological agent for treating ammonia-nitrogen-containing wastewater and preparation method thereof

A biological agent 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 applications, chemical methods are easy to cause other pollution, and enterprises are difficult to accept, so as to improve the efficiency of biological oxidation and biological treatment. , easily acceptable effect

Inactive Publication Date: 2015-05-20
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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  • Biological agent for treating ammonia-nitrogen-containing wastewater and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0027] Step 1) Preparation of paste liquid: drying the wheat straw, pulverizing it into wheat straw powder with a pulverizer; drying peanut shells, pulverizing it into peanut shell powder with a pulverizer; adding the above wheat straw powder and peanut shell powder into Then add soybean meal and water to the stirring tank, and after stirring at a speed of 500 rpm for 15 minutes, the material in the stirring tank is sent into the reactor, and steam is introduced into the reactor to maintain the temperature of the reactor at 95 ° C. Incubate the reaction for 30 minutes, and finally get it by 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: firstly, the zeolite is pulverized to obtain zeolite powder with a particle size of...

Embodiment 2

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

[0034] Step 1) Preparation of paste liquid: drying the wheat straw, pulverizing it into wheat straw powder with a pulverizer; drying peanut shells, pulverizing it into peanut shell powder with a pulverizer; adding the above wheat straw powder and peanut shell powder into Then add soybean meal and water to the stirring tank, and after stirring at a speed of 500 rpm for 15 minutes, the material in the stirring tank is sent into the reactor, and water vapor is introduced into the reactor to maintain the temperature of the reactor at 100 ℃, Incubate the reaction for 30 minutes, and finally get it by 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: firstly, the zeolite is pulverized to obtain zeolite powder with a particle siz...

Embodiment 3

[0047] Industrial application: The preparation is used to treat high-concentration ammonia nitrogen industrial sewage from a fertilizer factory in Hedong District, Linyi City. First, the suspended solids in the sewage are removed, and then the pH of the sewage is adjusted to 7 by adding hydrochloric acid. 20 grams of biological preparations were added once a day for three consecutive days, and then allowed to stand for another week, the liquid was filtered and sterilized, and finally discharged. 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 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 in water in the form of free ammonia (NH3) and ammonium ions (NH4+). The nitrogen content of animal organic matter is generally higher than that of plant organic matter. At the same time, the 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 compound ammonia that exists 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 poor. ...

Claims

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Application Information

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Patent Type & Authority Applications(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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