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Treatment method and device for extremely-high-concentration waste emulsion

A waste emulsion and treatment method technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sewage treatment, etc., can solve the problem of waste oil component and property damage, waste emulsion treatment difficulty, waste oil Utilize problems such as low value to achieve full demulsification and separation, realize resource utilization, and realize the effects of separation and recycling

Active Publication Date: 2016-07-06
GO HIGHER ENVIRONMENT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems in the prior art that the treatment of different types of waste emulsions is difficult, the components and properties of recovered waste oil are destroyed, and the utilization value of waste oil is low, and then provides a treatment of waste emulsions method

Method used

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  • Treatment method and device for extremely-high-concentration waste emulsion
  • Treatment method and device for extremely-high-concentration waste emulsion
  • Treatment method and device for extremely-high-concentration waste emulsion

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Embodiment 1, a kind of processing method of waste emulsion:

[0055] Such as figure 1 Shown, the treatment method of waste emulsion provided by the present invention comprises the steps:

[0056] 1) Carrying out oil-separation treatment to the waste emulsion, removing the oil slick on the upper layer of the waste emulsion, and obtaining the waste emulsion after the oil-separation treatment;

[0057] 2) The waste emulsion after the oil separation treatment is subjected to distillation pretreatment by electric heating to obtain waste oil and waste water, the waste oil obtained is collected and recycled, and the waste water obtained is subjected to next-level treatment,

[0058] Wherein, the distillation pretreatment comprises the following specific steps:

[0059] a) Preheating the waste emulsion after the oil separation treatment to obtain the preheated waste emulsion; b) Distilling the preheated waste emulsion under normal pressure to control the boiling point of the...

Embodiment 2

[0065] Embodiment 2, a kind of processing method of waste emulsion:

[0066] Such as figure 1 Shown, the treatment method of waste emulsion provided by the present invention comprises the steps:

[0067] 1) Carrying out oil-separation treatment to the waste emulsion, removing the oil slick on the upper layer of the waste emulsion, and obtaining the waste emulsion after the oil-separation treatment;

[0068] 2) The waste emulsion after the oil separation treatment is subjected to distillation pretreatment by steam heating to obtain waste oil and waste water, and the obtained waste oil is collected and recycled; the obtained waste water is subjected to next-level treatment.

[0069] Wherein, the distillation pretreatment comprises the following specific steps:

[0070] a) preheating the waste emulsion after the oil separation treatment to obtain the preheated waste emulsion; b) distilling the preheated waste emulsion under reduced pressure to control the boiling point of the d...

Embodiment 3

[0076] Embodiment 3, a kind of processing method of waste emulsion:

[0077] Such as figure 1 Shown, the treatment method of waste emulsion provided by the present invention comprises the steps:

[0078] 1) Carrying out oil-separation treatment to the waste emulsion, removing the oil slick on the upper layer of the waste emulsion, and obtaining the waste emulsion after the oil-separation treatment;

[0079] 2) The waste emulsion after the oil separation treatment is subjected to distillation pretreatment by electric heating to obtain waste oil and waste water, and the obtained waste oil is collected and recycled; the obtained waste water is subjected to next-level treatment,

[0080] Wherein, the distillation pretreatment comprises the following specific steps:

[0081]a) Preheating the waste emulsion after the oil separation treatment to obtain the preheated waste emulsion; b) Distilling the preheated waste emulsion under reduced pressure to control the boiling point of the...

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Abstract

The invention discloses a treatment method and device for extremely-high-concentration waste emulsion. The treatment method comprises the following steps that firstly, the waste emulsion is subjected to oil separation treatment to remove floating oil on the upper layer of the waste emulsion, and the waste emulsion obtained after oil separation treatment is obtained; secondly, the waste emulsion obtained after oil separation treatment is subjected to distillation pretreatment, and waste oil and waste water are obtained. The device comprises an oil separation system and a distillation system which are connected in sequence, wherein the oil separation system is used for regulating the flow of the waste emulsion and removing the floating oil on the surface of the waste emulsion, and the distillation system is used for carrying out demulsification and achieving oil and water separation of the waste emulsion obtained after oil separation treatment. Demulsification and oil and water separation are achieved at the same time through distillation treatment, selectivity is avoided, and the method and the device can be widely applied to treatment of various kinds of waste emulsion; recycling is easy, a demulsification agent does not need to be added, the component and nature of waste oil cannot be damaged, and decrease of the utilization value of the waste oil can be avoided.

Description

technical field [0001] The invention belongs to the technical field of hazardous waste treatment, and in particular relates to a treatment method and device for extremely high-concentration waste emulsion. Background technique [0002] The emulsion mainly contains organic oil and surfactant, which is prepared by diluting the emulsified oil with water and then adding an emulsifier. After repeated use, the emulsion will become rancid to varying degrees and its performance will decrease. It should be replaced regularly Therefore, a large amount of waste emulsion is produced, which is characterized by a wide variety, high concentration of CODcr and oil content, and difficult treatment. In addition to the hazards of general oily wastewater, waste emulsion has the effect of surfactants. Mechanical oil is highly dispersed in water, which is easier for animals, plants and aquatic organisms to absorb, and the surfactant itself is harmful to organisms, and can also dissolve some toxic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F9/14
CPCC02F1/04C02F1/048C02F1/40C02F1/52C02F1/72C02F3/00C02F9/00
Inventor 陈福泰褚永前张桂英
Owner GO HIGHER ENVIRONMENT GRP CO LTD
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