Biological treatment device for oily sewage in oil field

A sewage biological treatment, oil field technology, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of inability to zonally and flexibly control, to reduce pool wall leakage, reduce The effect of on-site operation time and cost saving of demolition racks

Pending Publication Date: 2020-02-28
大庆市海油庆石油科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing biological pool sludge discharge and aeration system is integrated and cannot be flexibly controlled in different areas

Method used

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  • Biological treatment device for oily sewage in oil field

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0015] The biological treatment device for oily sewage in the oil field includes a biological pool body 1. The treatment device divides the entire biological pool body 1 into several rectangular partitions, and each partition has a top surface with the same shape and size as the partition and a height slightly lower than the normal biological pool. The movable filler frame 2 on the working liquid level, the movable filler frame 2 is a cubic frame, and the movable filler frame 2 is covered with the entire biological pool body 1. When some parts of the biological pool fail and need to be repaired or replaced, only the parts involved in the operation need to be hoisted. Filler frame, even needn't stop production; The lower part horizontal direction of four sides of movable filler ...

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Abstract

The invention discloses a biological treatment device for oily sewage in an oil field. The biological treatment device comprises a biological pool body. The whole biological pool body is divided intoa plurality of rectangular zones by the treatment device, wherein each zone is provided with a movable filler frame, wherein the shape and the size of the top surface of each movable filler frame arethe same as the shape and the size of the top surface of the corresponding zone, and the height of each movable filler frame is slightly lower than a normal working liquid level of a biological pool;each movable filler frame is in the shape of a cubic frame, the lower parts of four side surfaces of each movable filler frame are provided with filler fence cross rods which are uniformly arranged atintervals in a horizontal direction; a plurality of vertical equal-height support legs are arranged on the bottom surfaces of the movable filler frames; and an independent aeration system and an independent sludge discharge pipeline are integrated onto the bottom of each movable filler frame. According to the invention, a filler frame provided by the invention is high in integration degree, and all equipment required by a biological system is integrated in one skid-mounted frame; the biological treatment device is special for an oilfield produced water treatment process, can be used independently or used in a combined manner, and is good in flexibility; and the frame is provided with side protective fences, so even if the filler falls off, the filler cannot fall into the pool, and thus, difficulty in desilting maintenance is reduced.

Description

technical field [0001] The invention belongs to a sewage treatment device, in particular to a biological treatment device for oily sewage in an oil field. Background technique [0002] A commonly used treatment process for oily wastewater treatment in oilfields is: raw water produced from oilfields → sedimentation → air flotation → biological treatment → solid-liquid separation → primary filtration → reuse. Among them, the biological treatment process is the process of using microorganisms to remove emulsified oil particles and organic suspended solids in sewage. In practice, it is often completed through a group of biological pools. Biological pools are generally composed of pool body, biological carrier and aeration system. In the existing biological ponds, the filler frame and the aeration system are basically fixed on the pond body, and the filler as a biological carrier is hung in the filler frame to evenly cover the whole pond. Since the treatment capacity of oily se...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F3/10C02F7/00C02F103/10C02F101/32
CPCC02F3/00C02F3/10C02F7/00C02F2101/32C02F2103/10Y02W10/10
Inventor 柳国政刘萍
Owner 大庆市海油庆石油科技有限公司
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