Sewage treatment method and device thereof

A sewage treatment method and technology of a sewage treatment device, applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, centrifugal separation water/sewage treatment, etc., can solve the problems of large investment and waste of sewage treatment equipment, Achieve the effect of saving one-time investment, low head loss and stable water quality

Inactive Publication Date: 2010-05-12
吴浩 +1
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  • Application Information

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Problems solved by technology

[0003] One object of the present invention is to provide a kind of sewage treatment method, another object of the present invention is to provide the device used in this sewage treatment method, the sewage treatment method and device thereof provided by the present invention are used to solve the investment of existing sewage treatment equipment in oil field Big, wasteful problem

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  • Sewage treatment method and device thereof
  • Sewage treatment method and device thereof
  • Sewage treatment method and device thereof

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Embodiment 1

[0024] Such as figure 1 As shown, this sewage treatment device comprises a settling tank, a continuous automatic sand filter 19, an oil sludge thickening system, and a waste oil tank 23. There are two settling tanks, which are respectively a primary settling tank 17 and a secondary settling tank 18. The settling tank 17 is a natural settling tank, the secondary settling tank 18 is a coagulation settling tank, the water outlet of the primary settling tank 17 is connected with the water inlet of the secondary settling tank 18 through a pipeline, and the larger suspended particles are removed by two-stage settling and heavy oil; the water outlet of the secondary settling tank 18 is connected with the water inlet pipe 4 of the continuous automatic sand filter 19 through a pipeline; 24 and a pump; the water outlet 7 of the continuous automatic sand filter is connected to the filtered water tank 26, the clear water filtered by the continuous automatic sand filter is transported to t...

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Abstract

The invention relates to a sewage treatment method and a device thereof. The sewage treatment method comprises that a continuous automatic sand filter is matched with an oil-mud thickening system in use; on the one hand, sewage filtration is performed in the continuous automatic sand filter so as to mainly remove a large amount of suspension and oil in the sewage, and the filtered water is colorless liquid and achieves the oilfield reinjection standard, and on the other hand, the sewage sand is backwashed in the continuous automatic sand filter; and then, the sand washing sewage of the continuous automatic sand filter enters the oil-mud thickening system to be further treated so as to separate the oil and the suspension in the sewage again and obtain sludge and oil only containing trace water, and the treated sand washing sewage is returned to be circularly treated. The continuous automatic sand filter and the oil-mud thickening system are matched in use, and the filtration process and the backwashing process are performed synchronously, so the cleaning for the sewage sand is quite thorough, the yield water has stable water quality and has no pollution, and the oil-mud thickening system can circularly treat the continuously produced sand washing sewage so as to realize zero emission of the sewage.

Description

1. Technical field: [0001] The invention relates to a process for treating sewage, in particular to a sewage treatment method and a device thereof. 2. Background technology: [0002] The sewage treatment process of the crude oil field joint station requires a lot of production auxiliary facilities, which requires a large one-time investment, troublesome operation and low production efficiency. The filter material in the filter needs to be stopped for backwashing, and the water consumption for backwashing dirty sand is large and It needs to be equipped with a larger backwash water pump, so it also needs to consume a lot of energy. The existing sewage treatment device in the oil field is widely used in the treatment of oily sewage in the oil field, but it has the disadvantages of water consumption, electricity consumption, large floor area, complicated operation by personnel, and large amount of daily maintenance during the production and operation process. Improve the produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/38
Inventor 吴浩刘荣臣刘俊龙张伟吕景春
Owner 吴浩
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