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Microbial preparation for processing coal chemical wastewater

A technology of microbial preparations and coal chemical wastewater, applied in the field of microorganisms, can solve problems such as unreasonable compatibility of bacterial agents, difficulty in accepting enterprises, poor treatment effect, etc., and achieve the effect of improving biological treatment efficiency, easy acceptance, and reducing operating costs

Active Publication Date: 2015-04-01
HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, methanol and white sugar (or industrial glucose) have been used in the dosing of carbon sources for biochemical sewage treatment, and methanol is a hazardous chemical, which not only poses a great danger in the process of use; the cost of white sugar is high, and it is generally difficult for enterprises to accept
[0004] Most of the existing biological methods for treating coal chemical wastewater have the following disadvantages: unreasonable compatibility of bacteria agents, poor treatment effect, and high cost, which are difficult for enterprises to accept

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A microbial preparation for treating coal chemical wastewater is prepared according to the following method:

[0030] Preparation of microbial nutrient: dry the crop straw, crush it into straw powder with a pulverizer, add it to the fermenter, then add soybean meal and water, stir at a speed of 500 rpm for 30 minutes, and let it stand for 24 hours to obtain microbial nutrient The temperature of the fermenter is controlled at 70°C; the mass ratio of straw powder, soybean meal and water is 3:2:5; the crop is sorghum;

[0031] Preparation of microbial carrier: first control the particle size of diatomite and chitosan to be 100 mesh, and then mix diatomite and chitosan evenly according to the mass ratio of 1:1 to obtain;

[0032] Preparation of microbial preparations: Enterococcus faecalis, Bacillus licheniformis, Acinetobacter baumannii, Rhodococcus, Sphingomonas and Pseudomonas fluorescens were cultured to a concentration of 1×10 8 Bacterial solution per ml, mixed accord...

Embodiment 2

[0035] A microbial preparation for treating coal chemical wastewater is prepared according to the following method:

[0036] Preparation of microbial nutrient: dry the crop straw, crush it into straw powder with a pulverizer, add it to the fermenter, then add soybean meal and water, stir at a speed of 500 rpm for 30 minutes, and let it stand for 24 hours to obtain microbial nutrient ; The temperature of the fermenter is controlled at 80°C; the mass ratio of straw powder, soybean meal and water is 3:2:5; the crop is corn;

[0037] Preparation of microbial carrier: first control the particle size of diatomite and chitosan to be 200 mesh, and then mix diatomite and chitosan evenly according to the mass ratio of 1:1 to obtain the product;

[0038] Preparation of microbial preparations: Enterococcus faecalis, Bacillus licheniformis, Acinetobacter baumannii, Rhodococcus, Sphingomonas and Pseudomonas fluorescens were cultured to a concentration of 1×10 8 Bacterial solution per ml, m...

Embodiment 3

[0047] Taking the coal chemical industry sewage of our company as an example, the sewage treatment effect of the microbial preparation in Example 2 was tested, and all indicators reached the ideal discharge standard. The detection indicators of sewage are shown in Table 1:

[0048] Table 1

[0049] Before treatment (mg / L) After treatment (mg / L) Removal rate (%) COD 987.6 11.3 98.6 NH3-N 312.3 6.5 97.9 Sulfide 51.3 2.3 95.5 Anilines 43.6 2.0 95.4

[0050] Conclusion: The microbial preparation of the present invention can effectively remove ammonia nitrogen, sulfide and aniline substances in coal chemical industry sewage, and fully meet the discharge standards.

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Abstract

The invention belongs to the technical field of microorganisms, and discloses a microbial preparation for processing a coal chemical wastewater. The microbial preparation is prepared by the following methods: 1) preparing microbial nutriments; 2) preparing a microbial carrier; and 3) preparing the microbial preparation. The microbial preparation disclosed by the invention contains a plurality of microorganisms, so that the microbial preparation is reasonable in compatibility and low in investment cost, and can be put into large-scale promotion and application.

Description

technical field [0001] The invention belongs to the technical field of microbes, and in particular relates to a microbiological preparation for treating wastewater from coal chemical industry. Background technique [0002] At present, due to the low cost of coal raw materials, using coal as raw material to synthesize liquid ammonia is the choice of most chemical companies. However, for ammonia production enterprises using coal as raw material, raw coal will discharge a large amount of waste water in the process of gas production, desulfurization, decarbonization, refining, and ammonia synthesis. Because coal contains elements such as carbon, hydrogen, oxygen, nitrogen, and sulfur, which are transformed into various organic and inorganic compounds of oxygen, nitrogen, and sulfur during the dry distillation process, the moisture in the gas and the condensate of the steam contain a variety of toxic Harmful pollutants are one of the most difficult industrial wastewater. How ...

Claims

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Application Information

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IPC IPC(8): C02F3/34
CPCC02F3/34C02F2305/06
Inventor 董力青孙钦波郭永波周家园
Owner HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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