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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  • Summary
  • 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 pe

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

Example Embodiment

[0049] Example 1:

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

[0051] Step one, prepare seed liquid:

[0052] Pseudomonas aeruginosa NY3 in this 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 is an existing strain, see literature: Fan Yu, Nie Maiqian, Ge Bizhou, Wanyi, Zi Jing, Zhao Jing, Shen Xiaojuan, Chen Xingdu. High-concentration phenol-resistant strains Screening and its degradation characteristics. Journal of Environment and Safety. 2012,12(4):113-117.

[0054] Strain activation: transfer the NY3 bacteria seed liquid and N2 bacteria seed liquid to the beef extract solid slant medium on the aseptic operat...

Example Embodiment

[0088] Example 2: Changing the particle size of wood chips

[0089] The difference between this comparative example and Example 1 is only that the particle size of the sawdust has the original 0.3mm, replaced by 0.56mm and 1mm respectively. The other process is the same as that of Example 1. It is cultured on a shaker at a constant temperature and aerobic at 30°C. 6d, complete the degradation of waxy oil sludge.

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

Example Embodiment

[0091] Example 3:

[0092] This example is the same as the other processes of example 1, except that in the biodegradation process of step 4, 7 ml of Pseudomonas aeruginosa NY3 seed liquid prepared in step 1 is added to the degradation system obtained in step 3, and Shi’s false 3ml of the monosporium N2 seed solution was cultured on a shaker at a constant temperature and aerobic at 30°C for 6 days to complete the degradation of waxy oil sludge.

[0093] Result test characterization:

[0094] The removal rate of C14~C18 in waxy oil sludge is above 80%, the removal rate of C19~C30 is between 70% and 83%, and the removal rate of C31~C38 is between 53% and 66%. The removal of phenanthrene and pyrene The rates can reach 30.9% and 28.1% respectively.

[0095] The output of conversion products in waxy oil sludge is 0.23g conversion products per gram of waxy oil sludge, and the characterization results are the same as those in Example 1, which proves that the conversion products contain glyc...

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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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