Process for oil field operation wastewater treatment and treatment system

A wastewater treatment and treatment system technology, applied in water/sewage treatment, water treatment parameter control, flotation water/sewage treatment, etc. The problem of high cost, to achieve the effect of shortened processing time, small footprint and high processing efficiency

Inactive Publication Date: 2020-08-18
四川人福生物环保有限公司
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Problems solved by technology

[0010] Specifically, in view of the fact that most of my country's oil and gas mining is distributed in desert areas and water resources are scarce, a process and treatment system for oilfield wastewater treatment is developed to treat and recycle pollutants in wastewater to achieve high water resources. Quality recovery has the characteristics of low energy consumption, low investment, stable operation, and can be parameterized and customized to meet various treatment needs. It has great value for technology application and promotion, and can effectively solve the problem of fracturing flowback fluid in oil and gas production. The status quo of treatment, high treatment cost, large treatment investment, and inability to stably meet standards for discharge or reuse

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  • Process for oil field operation wastewater treatment and treatment system

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0034] like figure 1 As shown in the figure, a process for oil field wastewater treatment, the steps of the process are roughly: buffer adjustment - three-phase vortex air flotation treatment - oxidation gel breaking treatment - coagulation sedimentation treatment - ultrafiltration treatment - nanofiltration treatment - Reverse osmosis treatment.

[0035] On the basis of the above process, the treatment system includes a regulating buffer tank, a three-phase vortex air flotation tank, an ultrafiltration device, a nanofiltration device, and a reverse osmosis device that are connected in sequence.

[0036] In this program, the specific steps are:

[0037] S1. Preliminary treatment, that is, the oilfield wastewater is buffered in the adjustment sedimentation tank for water qua...

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Abstract

The invention relates to a process for oil field operation wastewater treatment. The process approximately comprises the following steps of: adjusting and caching; carrying out three-phase vortex airfloatation treatment; carrying out oxidation gel breaking treatment; carrying out coagulating sedimentation treatment; carrying out ultrafiltration treatment; carrying out nanofiltration treatment; and carrying out reverse osmosis treatment. A treatment system is also disclosed. The process and treatment system can shorten treatment time, improve efficiency and reduce treatment cost, is good in treatment effect, and can completely recycle wastewater.

Description

technical field [0001] The invention relates to the technical field of oilfield wastewater treatment, in particular to a process and a treatment system for oilfield operation wastewater treatment. Background technique [0002] At present, domestic fracturing flowback fluids are mainly treated in the fields of re-injection, reuse, and discharge after centralized treatment, etc. There are many types of technical applications, such as natural evaporation, freeze-thaw, mechanical filtration, ozone oxidation, chemical flocculation, and electro-flocculation , reverse osmosis, evaporative distillation, etc. [0003] Most domestic oil fields adopt the traditional treatment process of natural sedimentation-coagulation-filtration. However, the traditional treatment process faces many problems, such as long settling time, low treatment capacity, excessive dosage of purification agents, resulting in increased salt content in the treated liquid, and excessive sludge volume after floccul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F9/06C01D3/04
CPCC01D3/04C02F1/24C02F1/441C02F1/442C02F1/444C02F1/4693C02F1/52C02F1/62C02F1/72C02F1/722C02F1/76C02F5/02C02F9/00C02F2209/08C02F2209/10
Inventor 唐静蒋康豫詹笑郑兴
Owner 四川人福生物环保有限公司
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