Oily sludge degrading strain Proteus mirabilis SB and application thereof

A technology of oily sludge and bacterial strains, applied in the direction of water/sludge/sewage treatment, bacteria, water pollutants, etc., can solve problems such as research limitations, achieve the effects of enhancing biological activity, increasing degradation rate, and changing properties
CN113151052AActive Publication Date: 2021-07-23XI'AN PETROLEUM UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI'AN PETROLEUM UNIVERSITY
Publication Date
2021-07-23

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Abstract

The invention provides an oily sludge degradation strain Proteus mirabilis SB and an application thereof. The strain is Proteus mirabilis, and is preserved in the China General Microbiological Culture Collection Center on January 25, 2021, and the preservation number is CGMCC NO.21729. The Proteus mirabilis SB is separated from oily sludge, so that the strain quickly becomes a dominant flora after entering the oily sludge, the degradation of petroleum hydrocarbons is effectively promoted, the physical properties of soil are improved, and the biological activity of the soil is enhanced. The strain can metabolize a biological surfactant in the growth and reproduction process, and the degradation rate of microorganisms on petroleum hydrocarbons in the oily sludge is increased. The strain Proteus mirabilis SB disclosed by the invention can degrade petroleum pollutants in the oily sludge within a short time, and the degradation rate of total petroleum hydrocarbon (TPH) in the oily sludge within two weeks reaches 70.5% or above; and the strain Proteus mirabilis SB has a remarkable degradation effect on the aromatic hydrocarbons in the oily sludge, and the degradation rate of the aromatic hydrocarbons in the total petroleum hydrocarbons in the oily sludge within two weeks reaches 69.2%.
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Description

technical field

[0001] The invention relates to the technical field of biochemical treatment of oily sludge; in particular, it relates to an oily sludge degrading bacterial strain Proteus mirabilis SB and its application. Background technique

[0002] The biological treatment of oily sludge mainly uses the metabolism of microorganisms to degrade petroleum hydrocarbons and finally convert them into CO 2 and H 2 O. The more representative ones are the composting method and the bioaugmentation method. The former is to fully stir the oily sludge and the consumable substances required for biological treatment, then stack them in rows, and use an aeration truck to periodically stir them to make them fully react. The latter is to add microbial agents that efficiently decompose petroleum hydrocarbons to oily sludge. These microorganisms use petroleum hydrocarbons as a carbon source for metabolism, and use the metabolic activities of microorganisms to assimilate and degrade petrole...

Claims

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