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Oily sewage drainage treatment process and device

A technology for treating process and sewage, which is applied in water/sewage treatment, biological water/sewage treatment, oxidized water/sewage treatment, etc. It can solve the problems of complex process flow, low treatment efficiency and large investment, and achieve excellent biological activation performance. , The effect of high treatment efficiency and less secondary pollution

Inactive Publication Date: 2019-11-15
张雷
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to realize the discharge treatment of oily sewage up to standard and to solve the problems of complicated process flow, low treatment efficiency, high energy consumption and large investment in the existing existing processes, the present invention provides a treatment process and device for oily sewage discharge

Method used

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  • Oily sewage drainage treatment process and device
  • Oily sewage drainage treatment process and device
  • Oily sewage drainage treatment process and device

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing:

[0025] combined with figure 1 , a kind of oily sewage effluent treatment process comprises the following steps:

[0026] Step 1: After the oilfield sewage is settled and filtered, it flows into the adjustment tank, and the water quality, water quantity and water temperature are uniformly adjusted in the adjustment tank; the uniform adjustment of water quality and water temperature is conducive to more uniform sewage purification in the next step.

[0027] Step 2: The sewage treated in step 1 is lifted by the pump into the ultrasonic enhanced ozone reaction tower according to the designed flow rate, and the high-frequency sound waves in the tower are used to form mechanical oscillations to enhance ozone mass transfer, and ultrasonic cavitation is used to enhance OH production. The addition, substitution, electron transfer, bond breaking, etc. between OH and organic compound...

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Abstract

The invention relates to oily sewage drainage up-to-standard treatment technologies and in particular to an oily sewage drainage treatment process and device. The process comprises the following steps: feeding fed water into a regulating reservoir, performing uniform regulation, lifting the water into an ultrasonic enhanced ozone reaction tower according to a design flow, enhancing ozone mass transfer by utilizing mechanical shock formed by sound waves, enhancing *OH production by utilizing ultrasonic cavitation, and realizing degradation of macromolecular oil in sewage by utilizing *OH oxidation so as to improve sewage biodegradability; feeding the pretreated sewage into an A / O biochemical treatment process, adding carrier filler into a section A, transforming macromolecular organic matters into small-molecule organic acids by utilizing anaerobic bacteria so as to further improve biodegradability of the sewage while concentrations of the organic matters are reduced; adding fixed oil decomposing bacterium filler into a section O, transforming oil pollutants in water into CO2 and H2O by utilizing oil decomposing bacteria, feeding the treated sewage into a secondary sedimentationtank, performing solid-liquid separation, refluxing flowable sludge into an anoxic pond, outward transporting the residual sludge, and performing up-to-standard discharge on supernate.

Description

technical field [0001] The invention relates to a standard-reaching treatment technology for oily sewage effluent, in particular to a treatment process and device for oily sewage effluent. Background technique [0002] Oilfield produced water treatment technology plays an important role in many aspects such as maintaining high and stable crude oil production and protecting the ecological environment. In order to meet the requirements of oily sewage treatment and water injection development in oilfields, oilfield surface engineering has built a large-scale and complex sewage treatment system. According to different sources of produced water, it is divided into: water flooding sewage, polymer flooding sewage, high concentration polymer flooding sewage, and three-way flooding sewage. As the oilfield development enters the middle and later stages, the water content of the produced fluid increases gradually, leading to an increase in the production of oily sewage. Reinjection c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C12N11/08C02F103/10
CPCC02F1/36C02F1/78C02F3/30C02F3/341C02F9/00C02F2103/10C02F2201/782C12N11/08
Inventor 苗月张雷丁瑞东高滨戴春雷王松
Owner 张雷
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