Oily sludge treatment method and soil remediation method

A soil remediation and mass ratio technology, which is applied in the restoration of polluted soil, pyrolysis treatment of sludge, petroleum industry, etc., can solve the problems of difficult separation of catalysts, consumption, occupying a lot of energy or landfill storage capacity, etc.

Pending Publication Date: 2022-07-22
TIANJIN UNIV
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Problems solved by technology

However, there is a problem that it is difficult to separate the catalyst from the pyrolysis residue, and the treatment of the pyrolysis residue also consumes or occupies a large amount of energy or landfill storage capacity, and the catalyst becomes a one-time consumable

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  • Oily sludge treatment method and soil remediation method
  • Oily sludge treatment method and soil remediation method
  • Oily sludge treatment method and soil remediation method

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Embodiment Construction

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] Oily sludge pyrolysis technology can separate oily sludge into valuable petroleum resources and treatment residues, and produce less secondary pollutants. For example, the invention patents CN 108675589 A and CN 108675590 A describe that the pyrolysis technology is beneficial to solve the problem of difficult oilfield sludge treatment. However, for oily sludge rich in heavy components that are refractory to degradation and high in N / S / Cl, heavy metals and other harmful elements, conventional pyrolysis still has a pyrolysis process that releases a large amount of N / S / Cl-containing volatile pollutants. Such problems as incomplete removal of petroleum hydrocarbons, high energy consumption, and unc...

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Abstract

The invention provides an oily sludge treatment method and a soil remediation method.The oily sludge treatment method comprises the steps that after oily sludge and target biochar are evenly mixed according to a first preset mass ratio, catalytic pyrolysis reaction is conducted at the first preset temperature, efficient removal of petroleum hydrocarbon is achieved, and pyrolysis residues are obtained and used for soil remediation.

Description

technical field [0001] The present disclosure relates to the technical field of oily sludge recycling and harmless treatment, in particular to a method for treating oily sludge and a method for soil remediation. Background technique [0002] Oily sludge is a kind of petroleum-containing hazardous waste (HW08) produced by the petroleum and petrochemical industry, which has the dual attributes of resources and environmental pollution. Correspondingly, its treatment and disposal process and method should meet the dual management objectives of recycling resources and environmental harmlessness. [0003] In the related art, oily sludge can be separated into valuable petroleum resources and treatment residues, and less secondary pollutants are produced. However, for oily sludge rich in heavy components that are difficult to degrade and high in N / S / Cl, heavy metals and other harmful elements, conventional pyrolysis still has a pyrolysis process that will release a large amount of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/10C10B53/00C10B53/02C10B57/06B09C1/00B09C1/10B09C1/08
CPCC02F11/10C10B53/00C10B53/02C10B57/06B09C1/00B09C1/10B09C1/08
Inventor 林法伟陈冠益李建陶颜蓓蓓程占军崔孝强李宁
Owner TIANJIN UNIV
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