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A kind of bacterial strain producing biological emulsifier and the biological emulsifier produced by it

A biological emulsifier and sludge technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of environmental damage, easy to leave harmful chemical reagents, etc., to achieve good treatment, avoid environmental hazards, The effect of stable performance

Active Publication Date: 2022-06-21
克拉玛依市新奥达石油技术服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing chemical reagent treatment method in the above-mentioned background technology is easy to leave harmful chemical reagents and cause harm to the environment, it provides a bacterial strain for producing bio-emulsifier and the bio-emulsifier produced by it

Method used

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  • A kind of bacterial strain producing biological emulsifier and the biological emulsifier produced by it
  • A kind of bacterial strain producing biological emulsifier and the biological emulsifier produced by it

Examples

Experimental program
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Effect test

Embodiment 1

[0035] like figure 1 As shown, a method for treating oily sludge using the above-mentioned biological emulsifier of the present invention comprises the following steps:

[0036] S1, add 20 times the weight of water to the 5mL oily drill cuttings to be treated, then stir for 1h at a rotating speed of 30rpm, then adjust pH to 6 to obtain pretreated oily sludge;

[0037] S2. Add 0.5 g / L of the biological emulsifier at 45° C. and pH 5 to the pretreated oily sludge in step S1, and then stir at 30 rpm for 3 hours to obtain the treated oily sludge, The mass ratio of the pretreated oily sludge to the biological emulsifier is 20:1.

[0038] After testing, the initial oil content of oil-bearing drill cuttings was 15.48%, and the oil content of the samples treated with biological emulsifier was 1.57%. Transfer to a beaker such as figure 1 shown.

Embodiment 2

[0040] The difference with Example 1 is that in step S1, 20 times the weight of water is added to the 5mL tank bottom sludge to be treated. In step S2, 20 g / L of the biological emulsifier was added to the pretreated oily sludge in step S1. It was then stirred at 50 rpm for 4.5 h.

[0041] After testing, the initial oil content of the tank bottom sludge was 8.45%, and the oil content of the tank bottom sludge after the biological emulsifier treatment was 1.24%.

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Abstract

The invention belongs to the field of sludge treatment, and in particular relates to a bacterial strain for producing biological emulsifier and the biological emulsifier produced by using the same. The emulsifier-producing bacterial strain of the present invention is called Candida, and its preservation number is CGMCC NO.19719. On April 24, 2020, it was deposited in the General Microbiology Center of the China Committee for the Collection of Microbial Cultures, and the preservation number is CGMCC NO: 19719. The biological emulsifier of the invention can treat the oily sludge very well, and the treatment effect is better than that of the existing common candida. And it will not cause harm to the environment, avoiding the environmental hazards caused by chemical treatment reagents. The method solves the technical problem that the existing chemical reagent treatment method is easy to leave harmful chemical reagents and cause harm to the environment. The treatment process of the invention is simple and efficient, and can effectively reduce the oil content of the oily sludge to meet the discharge standard.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and specifically relates to a bacterial strain for producing a biological emulsifier and a biological emulsifier produced by using the same. Background technique [0002] The petrochemical industry has become an indispensable and important part of today's society. Today, with the deepening of the oil development process and the continuous improvement of the mining process, the oily sludge produced also increases. According to the survey, about 4×10 oily sludge is produced in my country’s petrochemical industry every year. 5 t, and the production volume is still increasing year by year, causing more and more serious harm to the environment. Because oily sludge contains a large number of refractory petroleum hydrocarbon compounds, some of which are "three consistent" substances, oily sludge has been included in the "National Hazardous Waste List". [0003] Chemical reagents are often used to trea...

Claims

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Application Information

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IPC IPC(8): C12N1/16C12P19/04C02F11/02C12R1/72
CPCC12P19/04C02F11/02C12R2001/72C12N1/165
Inventor 董丁张鹏宋静
Owner 克拉玛依市新奥达石油技术服务有限公司
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