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Rapid harmless biological degradation method against waxy oil sludge

A waxy oil sludge and biodegradation technology, applied in sludge treatment, biological sludge treatment, mining wastewater treatment, etc., can solve the problems of non-recyclable resources and slow degradation, and achieve short treatment time, accelerated degradation, Efficient effect

Active Publication Date: 2015-01-14
陕西省膜分离技术研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a rapid and harmless biodegradation method specifically for the waxy oily sludge produced in the oil extraction and refining process, which can effectively degrade the petroleum in the waxy oily sludge Hydrocarbons, without polluting the environment, finally meet the requirements of harmless treatment of waxy oil sludge, and overcome the problems of slow degradation and non-recyclable resources in existing biological treatment technologies

Method used

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  • Rapid harmless biological degradation method against waxy oil sludge
  • Rapid harmless biological degradation method against waxy oil sludge
  • Rapid harmless biological degradation method against waxy oil sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment provides a kind of rapid and harmless biodegradation method for waxy oil sludge, and this method comprises the following steps:

[0051] Step 1, prepare seed solution:

[0052] Pseudomonas aeruginosa NY3 of the present application is an existing strain, see literature: Maiqian Nie, Xihou Yin, Chunyan Ren, Yang Wang, Feng Xu, Qirong Shen.Novel rhamnolipid biosurfactants produced by a polycyclic aromatic hydrocarbon-degrading bacterium Pseudomonas aeruginosa strain NY3. Biotechnology Advances., 2010, 28:635–643.

[0053] Pseudomonas stutzeri N2 in this application is an existing strain, see literature: Fan Yu, Nie Maiqian, Ge Bizhou, Wan Yi, Zi Jing, Zhao Jing, Shen Xiaojuan, Chen Xingdu. High-concentration phenol-resistant strains Screening and research on its degradation characteristics. Journal of Environment and Safety. 2012,12(4):113-117.

[0054] Activation of strains: Transfer NY3 bacterial seed solution and N2 bacterial seed solution to beef extr...

Embodiment 2

[0088] Embodiment 2: Replacement of sawdust particle size

[0089] The difference between this comparative example and Example 1 is that the particle size of the sawdust was changed from the original 0.3mm to 0.56mm and 1mm respectively, and the other processes were the same as in Example 1. On a shaker, the aerobic cultivation was carried out at a constant temperature at 30°C. 6d, complete the degradation of waxy oil sludge.

[0090] The degradation result is: the degradation result of linear n-alkane is shown in image 3 , the degradation rate of each straight-chain n-alkane in petroleum hydrocarbons is significantly lower than that of wood chips in Example 1 when the particle size is 0.3 mm, and the degradation rates of phenanthrene and pyrene are also reduced.

Embodiment 3

[0092] This embodiment is the same as the other process of embodiment 1, the only difference is that in the biodegradation process of step 4, step 1 is added to the degradation system obtained in step 3 to obtain 7ml of Pseudomonas aeruginosa NY3 seed solution, and 3ml of the seed solution of Monascus N2 was cultured on a shaker at a constant temperature and aerobic at 30°C for 6 days to complete the degradation of waxy oily sludge.

[0093] Results Test Characterization:

[0094] The removal rates of C14-C18 in waxy oily sludge all reached over 80%, the removal rates of C19-C30 were between 70%-83%, the removal rates of C31-C38 were between 53%-66%, and the removal rates of phenanthrene and pyrene The rates can reach 30.9% and 28.1% respectively.

[0095] In the waxy oil sludge, the output of the conversion product is that every gram of the waxy oil sludge produces 0.23g of the conversion product, and it is characterized. The characterization result is the same as that in Ex...

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Abstract

The invention provides a rapid harmless biological degradation method against waxy oil sludge. The method is realized by preparing a seed solution, heating and dispersing the waxy oil sludge, preparing a degradation system and performing biological degradation, the method aims at the waxy oil sludge produced in oil production and oil refining processes specially, and substances in the waxy oil sludge can be effectively degraded by using the method. By adopting the method provided by the invention, petroleum hydrocarbon type substances in the oil sludge can be effectively degraded, petroleum hydrocarbons can be partially converted to glycoprotein type substances, and the requirements on harmless treatment of the oil sludge can be finally met. The method utilizes a biological treatment process, prevents secondary pollution and has no influence on an environment; the treatment process is simple, and the operation cost is low; the treatment time is short, and the efficiency is high. A conversion product of the oil sludge can promote the degradation of the oil sludge, which is an unexpected effect obtained in a testing process of the method provided by the invention.

Description

technical field [0001] The invention belongs to the field of solid waste treatment and relates to the treatment of waxy oily sludge, in particular to a rapid and harmless biodegradation method for waxy oily sludge. Background technique [0002] Solid waste pollution is one of the important factors that endanger the human living environment and affect human health. Solid waste treatment has become a difficult problem to deal with today. As a type of solid waste, oily sludge occupies a large amount of land, pollutes soil, water, and air, and has a negative impact on the surrounding environmental quality. It is a relatively large problem in solid waste treatment. [0003] Oily sludge treatment is one of the important tasks of environmental protection in the petroleum industry, and its harmless and resourceful treatment technology has become the focus of research in recent years. In recent years, the treatment of oily sludge has attracted much attention. Landfill, dispersed til...

Claims

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Application Information

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IPC IPC(8): C02F11/02
CPCC02F11/02C02F2103/10Y02W10/20
Inventor 聂麦茜聂红云候保卫
Owner 陕西省膜分离技术研究院有限公司
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