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Integrated efficient thermal washing-advanced oxidation combined oily sludge treatment system and oily sludge treatment method

A technology of advanced oxidation and combined treatment, applied in sludge treatment, dehydration/drying/thickened sludge treatment, chemical instruments and methods, etc., can solve problems such as inability to achieve treatment effects

Pending Publication Date: 2021-06-22
SHANDONG UNIV OF SCI & TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the method of using surfactants to elute organic matter is easy to operate and has high treatment efficiency, but the treatment method of single elution is still relatively weak in the degradation of refractory organic matter such as oily sludge, and cannot achieve the ideal treatment effect

Method used

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  • Integrated efficient thermal washing-advanced oxidation combined oily sludge treatment system and oily sludge treatment method
  • Integrated efficient thermal washing-advanced oxidation combined oily sludge treatment system and oily sludge treatment method
  • Integrated efficient thermal washing-advanced oxidation combined oily sludge treatment system and oily sludge treatment method

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Effect test

Embodiment 1

[0071] In order to achieve high-efficiency treatment of oily sludge, the present invention provides an integrated high-efficiency thermal washing-advanced oxidation combined treatment system for oily sludge, the system includes: a central treatment pool 4, an agitator 4-1 for stirring materials And a temperature control device 8 for controlling the temperature in the central treatment pool 4, the inlet end of the central treatment pool 4 is respectively connected to the oily sludge feed channel 1-1, the water washing channel 6, the oxidizing agent feed channel 7 and the water washing agent Feed channel 11; the lower end of the central treatment tank 4 is connected with a sludge discharge channel 4-2.

[0072] As a preferred scheme, in order to improve the treatment effect of the oily sludge entering the central treatment tank 4, the oily sludge entering the central treatment tank 4 through the oily sludge feed channel 1-1 is pre-treated before entering the central treatment tan...

Embodiment 2

[0077] A method of using the high-efficiency hot washing-advanced oxidation combined treatment of oily sludge using the system of Example 1,

[0078] (1) Fill the oily sludge into the central treatment tank 4 through the oily sludge feed channel 1-1, and do not need to preheat for the first filling, and then use the wastewater to preheat after the wastewater is generated in the central treatment tank 4;

[0079] (2) Washing stage

[0080] According to the mass volume ratio 1g of oily sludge and washing agent: 10ml adds synergistic water washing agent to central treatment tank 4 through water washing agent feed channel 11 (synergistic water washing agent is made up of water washing agent and strengthening agent, and wherein water washing agent is TritonX- 100:SDBS=7:3 (mass ratio), concentration is 20g / L, and strengthening agent is the sodium carbonate that mass fraction is 1.5wt%), start temperature control device 8 control temperature at 55 ℃, keep stirring for 2 hours, then ...

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Abstract

The invention discloses an integrated high-efficiency thermal washing-advanced oxidation combined oily sludge treatment system and an oily sludge treatment method, and belongs to the technical field of oily sludge treatment. The method comprises a water washing process and an oxidation process, most crude oil can be efficiently and rapidly eluted in the water washing process, and the degradation difficulty is greatly reduced for subsequent oxidation treatment; in the oxidation process, persulfate is adopted as an oxidizing agent, green and environment-friendly treatment is achieved under the conditions of low temperature and water addition, harm to the environment is small, and an efficient solution is provided for oily sludge remediation.

Description

technical field [0001] The invention belongs to the technical field of oily sludge treatment equipment and methods, and in particular relates to an integrated high-efficiency thermal washing-advanced oxidation combined treatment system for oily sludge and a treatment method for oily sludge. Background technique [0002] With the development of the petroleum industry, a large amount of oil sludge will be generated in the process of crude oil production, transportation, storage and refining. In China, the annual oil sludge production in the petrochemical industry is estimated at 3 million tons. Oily sludge not only has a high yield, but also has a very complex composition. The composition of sludge mainly depends on the type of oil and its source. Typically, it contains 5-60 wt% petroleum, 30-90 wt% water and 5-40 wt% mineral particles. Analysis of petroleum components shows that there are 40-52wt% alkanes, 28-31wt% aromatics, 7-22.4wt% colloids and 8-10wt% asphaltenes. Oi...

Claims

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Application Information

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IPC IPC(8): C02F11/143C02F11/147C02F11/13
CPCC02F11/143C02F11/147C02F11/13
Inventor 薛建良张琦刘冰肖新峰高宇李琳刘友乐成东乐蒋晴魏金晓高洪阁
Owner SHANDONG UNIV OF SCI & TECH
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