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Method for recycling injection polymers by polymer-containing sewage advanced treatment

A technology for advanced treatment and sewage treatment, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, mining wastewater treatment, etc. It can solve the problems of incapable of reusing, saving water and solving environmental pollution. Effect

Inactive Publication Date: 2013-05-22
杭州广联新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The sewage treated by the treatment technology provided by the above patents cannot be used for the purpose of compounding and recycling

Method used

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  • Method for recycling injection polymers by polymer-containing sewage advanced treatment

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Embodiment Construction

[0029] Such as figure 1 As shown, a method for advanced treatment and reuse of polymer-containing sewage comprises the following steps:

[0030] 1. A method for advanced treatment of poly-containing sewage and reuse of poly-polymers, comprising the following steps:

[0031] A. Polymerized sewage flows into the first-level electric floating device for air flotation and degreasing after passing through the oil floating in the large tank;

[0032] B. Water purifying agent is added to the outlet water of the first-stage electric floatation device, and then enters the second-stage electric floatation device and the third-stage electric floatation device to remove suspended solids after passing through the pipeline mixer;

[0033] C. The water from the secondary and tertiary electric floating devices flows into the two-stage filter through the automatic energy-saving water supply device a, and the two-stage filter is filtered to make the content of suspended solids and oil in the w...

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Abstract

The invention relates to a method for recycling injection polymers by polymer-containing sewage advanced treatment. On the basis of the water quality characteristics of the polymer-containing sewage and the polymer-containing sewage high-efficiency advanced treatment technique, the polymer-containing sewage can be recycled for injection polymers without lowering the viscosity of the polymer solution, thereby solving the problem of low viscosity of sewage injection polymers.

Description

technical field [0001] The invention relates to a method for advanced treatment and reuse of polymer-containing sewage and belongs to the technical field of oilfield polymer-containing sewage treatment. Background technique [0002] Oilfield oily sewage is the waste water after oil and gas separation and dehydration of oilfield production liquid, that is, oily sewage. This oily sewage not only contains crude oil, but also dissolves various salts, suspended solids, harmful gases, organic matter and a large amount of suspended solids; chemicals are usually added in the oil and gas treatment process. Commonly used treatment methods include floating oil, coagulation sedimentation-air flotation, and filtration. Traditional methods are unsatisfactory for the treatment of polymer-containing wastewater. [0003] Polymer flooding is an effective method to enhance oil recovery, and it has been applied in domestic oil fields, which produce more than 100 million cubic meters of polyme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F103/10
Inventor 赵瑞玉董滨孙承林朱成君陈大祥仉志华于永辉贾增金
Owner 杭州广联新能源科技有限公司