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Combined device for oily sewage treatment

A combined device and oil-sewage technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Low cost, reduced sewage production, and simple equipment

Inactive Publication Date: 2015-01-28
XIAN HUALU ENVIRONMENTAL PROTECTION EQUIP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a combination device for oily sewage treatment, aiming to solve the problem of low utilization rate of sewage treatment and non-recyclable utilization

Method used

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  • Combined device for oily sewage treatment

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Experimental program
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Effect test

Embodiment

[0015] Example: As shown in the figure, the process of the oily sewage combined treatment device is as follows: oilfield sewage, as shown by the arrow, enters the grille 1, removes the larger debris in the sewage, prevents the pipeline from clogging, and protects the normal operation of the subsequent sewage treatment equipment; After the grid 1 is treated, the sewage enters the regulating oil separation tank 2, and the regulating oil separation pool 2 includes a plurality of oil separation pools in series, preferably two, the incoming water first enters the first oil separation pool, and uses the gravity separation method for oil separation After treatment, the floating oil enters the oil collecting tank 4 through the oil collecting tank. As the liquid level continues to rise, the oily sewage overflows to the second oil collecting tank for further separation, and the floating oil enters the oil collecting tank 4; Oil pool 3, the advection oil separator 3 includes a plurality o...

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Abstract

The invention relates to a combined device for oily sewage treatment and belongs to the field of sewage treatment of oil fields. In order to solve the problem that the existing sewage treatment device is low in utilization ratio and sewage cannot be recycled, the invention provides a combined device capable of recycling. The combined device comprises a grating, an adjusting oil separator, an advection oil separator, a floatation device and an active carbon adsorption filter which are sequentially connected by virtue of a pipeline. The adjusting oil separator and the advection oil separator are externally connected with an oil collecting pond, respectively, the flotation device is externally connected with a dosing device, and a deslagging outlet is externally connected with a sludge drying pond. The combined device can be used for recycling sewage, so that no novel impurities in the treatment process are generated, the sewage production volume is reduced, and meanwhile, the device is simple and low in cost.

Description

technical field [0001] The invention belongs to the field of oil field sewage treatment. Background technique [0002] Oilfield sewage mainly includes crude oil produced water (also known as oilfield produced water), drilling sewage and other types of oily sewage in the station. Due to various types of oilfield sewage, differences in strata and drilling techniques, the water quality of various oilfield sewage treatment stations varies greatly, which is The treatment of oilfield sewage brings difficulties. Most of my country's onshore petroleum industry is located in some arid areas, where water resources are in serious shortage. The reuse of sewage can not only save the cost of enterprises, but also meet the requirements of environmental protection. The reuse rate of industrial sewage in the United States has reached 1700%, that is, it can be reused 17 times. However, the utilization rate of industrial sewage in the Yellow River Basin in my country is less than 30%. It is of...

Claims

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Application Information

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IPC IPC(8): C02F9/04
Inventor 陆强
Owner XIAN HUALU ENVIRONMENTAL PROTECTION EQUIP
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