Skid-mounted oily sewage bio-treatment device
A technology for biological treatment and oily sewage, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Sewage purification treatment and other issues, to achieve the effect of improved capacity, reasonable structure and convenient use
Active Publication Date: 2012-07-11
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
For the treatment of oily sewage in oilfields, conventional biofilm technologies mainly have the following two problems: First, they are mainly suitable for domestic sewage treatment. Due to the sufficient carbon source and insufficient nitrogen source of oily sewage in oilfields, it is difficult for conventional bacteria to effectively treat oily sewage. Purification treatment; second, the film-forming efficiency is low, and the film-forming area of the filler is small, so it is usually made up for by increasing the construction scale and increasing the absolute value of the fungus, and it is difficult to realize the miniaturization and skid-mounting of the treatment device
Therefore, conventional biological treatment technology is not suitable for the treatment of oily sewage in oilfields, let alone popularized in marginal areas
Method used
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[0018] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.
[0019] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout of the drawings in the specification, such as: the positional relationship of upper, lower, left, right, etc. is based on the drawings in the specification determined by the layout direction.
[0020] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:
[0021] as attached figure 1 , 2 As shown, the skid-mounted oily sewage biological treatment device includes a base 1 and an inflow adjustment tank 2, a first oxidation tank 3, a second oxidation tank 4 and a settling tank 5 fixedly installed on the base from left to right in sequen...
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The invention relates to the technical field of oilfield oily sewage treatment devices, in particular to a skid-mounted oily sewage bio-treatment device. The device comprises a base and a water inlet adjusting tank, a first oxidation tank, a second oxidation tank and a sedimentation tank fixedly arranged on the base in turn from left to right; at least two aeration heads are uniformly arranged inthe lower parts of the water inlet adjusting tank, the first oxidation tank, the second oxidation tank and the sedimentation tank respectively; each aeration head is communicated with the air outlet of a fan through an air inlet pipe; an oily sewage inlet pipe is fixedly arranged on the lower part of the water inlet adjusting tank; and first water outlet pipes are fixedly arranged in the water inlet adjusting tank and the first oxidation tank. The device has reasonable and compact structure, and is convenient to use; rotary floating biological beds are formed in the oxidation tanks of the device by the measures of uniform water distribution, cyclone stirring and the like so as to greatly improve the capability of degrading pollutants in the sewage; and the skid-mounted device is easy to carry and manage, and is particularly suitable for remote blocks where the sewage collecting and transporting costs are high and the management is inconvenient.
Description
technical field [0001] The invention relates to the technical field of oily sewage treatment devices in oilfields, and relates to a skid-mounted oily sewage biological treatment device. Background technique [0002] Oily sewage is an inevitable product of oilfield production. After oil-water separation of oilfield production fluid, the COD, oil content, and volatile phenols of the oily sewage exceed the standard. It is a typical high-salt organic polluted wastewater and should be treated before reuse or discharge. At present, most oil fields transfer oily sewage to sewage treatment stations for centralized treatment, mainly by adding chemical agents for flocculation reaction and sedimentation method, and the treated water is generally used for water injection in oil fields or water for steam injection boilers. As my country's main oilfields enter the "three high" stage of high water cut, high recovery degree and high oil recovery rate, the balance between produced water and ...
Claims
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IPC IPC(8): C02F9/14
Inventor 骆伟梅俊杨萍萍王爱军孙国成
Owner BC P INC CHINA NAT PETROLEUM CORP