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Microbes capable of degrading phenol and cyanogen in coking waste water and method for treating coking waste water by using same

A technology for microbial treatment and coking wastewater, applied in microorganism-based methods, sustainable biological treatment, biochemical equipment and methods, etc., can solve problems such as difficulty in removal and effluent failure to meet national first-level discharge standards

Inactive Publication Date: 2011-02-16
INST OF MICROBIOLOGY HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, MBR membrane bioreactor is mainly used to treat coking wastewater, but the small molecular harmful substances in coking wastewater, especially those with a molecular weight of less than 100, such as volatile phenol and cyanide, are difficult to remove, resulting in the effluent failing to meet the national standard level emission standard

Method used

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  • Microbes capable of degrading phenol and cyanogen in coking waste water and method for treating coking waste water by using same
  • Microbes capable of degrading phenol and cyanogen in coking waste water and method for treating coking waste water by using same
  • Microbes capable of degrading phenol and cyanogen in coking waste water and method for treating coking waste water by using same

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specific Embodiment approach 1

[0021] Specific embodiment 1: One of the microorganisms that can degrade phenol and cyanide in coking wastewater in this embodiment is Bacillus subtilis BHf3-4, which is preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee, and the preservation number is CGMCC No. .4046.

[0022] The physiological and biochemical characteristics of Bacillus subtilis BHf3-4 are shown in Table 1, and the photomicrograph of Bacillus subtilis BHf3-4 is shown in Table 1. figure 1 shown.

[0023] Table 1

[0024] Catalase

specific Embodiment approach 2

[0025] Specific implementation mode 2: The second type of microorganism that can degrade phenol and cyanide in coking wastewater in this embodiment is Bacillus sp. JhqK9-1, which is preserved in the General Microbiology Center of China Committee for the Collection of Microbial Cultures, and the preservation number is CGMCC No. .4047.

[0026] The physiological and biochemical characteristics of Bacillus JhqK9-1 are shown in Table 2, and the photomicrograph of Bacillus JhqK9-1 is shown in Table 2. figure 2 shown.

[0027] Table 2

[0028] Catalase

specific Embodiment approach 3

[0029] Specific embodiment three: The third of the microorganisms that can degrade phenol and cyanide in coking wastewater in this embodiment is Klebsiella oxytoca (Klebsiella oxytoca) JhqM8. CGMCC No. 4048.

[0030] The physiological and biochemical characteristics of Klebsiella oxytoca JhqM8 are shown in Table 3, and the photomicrograph of Klebsiella oxytoca JhqM8 is shown in Table 3. image 3 shown.

[0031] table 3

[0032] Catalase

[0033] sucrose

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Abstract

The invention discloses microbes capable of degrading phenol and cyanogen in coking waste water and a method for treating coking waste water by using the same, which relate to microbes for degrading phenol and cyanogen in coking waste water and a method for treating waste water by using the same. The invention solves the problem that micromolecule harmful substances in the coking waste water treatment process, such as volatile phenol and cyanides, are difficult to remove. The microbes capable of degrading the phenol and the cyanogen in the coking waste water comprise bacillus subtilis BHF3-4, bacillus JhqK9-1 and acid-producing klebsiella JhqM8. The method for treating the coking waste water comprises the following steps: 1. inoculating the microbes capable of degrading the phenol and the cyanogen in the coking waste water to a membrane biological reactor (MBR); 2. and treating the coking waste water. When the method is used for treating the coking waste water, the removal rate of the volatile phenol in the coking waste water can reach 99.6-99.9%, and the removal rate of cyanides can reach 99.5-99.7%, thus, the outlet water can reach the Chinese first-class emission standard.

Description

technical field [0001] The invention relates to microorganisms for degrading phenol and cyanide in waste water and a method for treating waste water with the same. Background technique [0002] Coking wastewater mainly comes from coking and gas purification process and refining process of chemical products, among which the residual wastewater generated in ammonia distillation process is the main source. Ammonia distillation wastewater is the wastewater discharged after the distillation of mixed residual ammonia water. The remaining ammonia water is the most important source of phenol cyanide wastewater in the coking plant. It is high-concentration phenol water containing ammonia. It is discharged by the circulating ammonia water pump in the condensation blast section and sent to the remaining ammonia water storage tank. The remaining ammonia water is mainly composed of three parts: the wet water on the surface of the furnace coal, the combined water produced by the dry dist...

Claims

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Application Information

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IPC IPC(8): C02F3/02C12R1/07C12R1/22C12N1/20C02F101/36C02F101/18C12R1/125C02F3/34
CPCY02W10/10
Inventor 刘宇峰沙长青王金英于冲曲晓军孙建华夏海华杨贺晴赵晓磊王雪娇
Owner INST OF MICROBIOLOGY HEILONGJIANG ACADEMY OF SCI
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