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Reinjecting twin-well pneumatic shatter auxiliary restoration system and method of underground oil pollution

A technology of oil pollution and remediation method, which is applied in the restoration of polluted soil, etc. It can solve the problems of low nutrient transfer rate and discounted remediation efficiency, and achieve the effects of saving operating costs, improving efficiency and stabilizing the effect

Inactive Publication Date: 2011-10-26
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

However, due to the influence of the nature of the underground soil, the transmission rate of nutrients in the dense soil area is low, which has a great inhibitory effect on the efficiency of in-situ microbial remediation technology, and its remediation efficiency is greatly reduced.

Method used

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  • Reinjecting twin-well pneumatic shatter auxiliary restoration system and method of underground oil pollution
  • Reinjecting twin-well pneumatic shatter auxiliary restoration system and method of underground oil pollution
  • Reinjecting twin-well pneumatic shatter auxiliary restoration system and method of underground oil pollution

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0023] In September 2007, in Panjin City of Liaohe Oilfield, the re-injection double-well gas breaking assisted underground oil pollution in-situ bioremediation system was adopted as the follow-up process of two-phase vacuum suction treatment, and the design was carried out in combination with local conditions. The system as figure 1 As shown, it consists of indoor and outdoor parts. The indoor part includes a tap water pipe 1, a pneumatic shock unit 2, a bacterial solution preparation storage unit 4, a nutrient addition unit 3, a bacterial solution reinjection pipeline 12, a two-phase suction unit 5, Control unit 6; the outdoor part includes the first suction well 7, the second suction well 8, the third suction well 9, the first injection / shake well 10, the second injection / shake well 11; the water pipe 1 and The bacteria solution preparation stora...

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Abstract

The invention discloses a reinjecting twin-well pneumatic shatter auxiliary restoration system and method of underground oil pollution, belonging to the technical field of auxiliary restoration of oil pollution. The system is composed of an indoor part and an outdoor part, wherein, the indoor part comprises a pneumatic shatter unit, a preparation and storing unit for a bacteria liquid, a nutrition adding unit, a reinjecting pipeline of the bacteria liquid, a biphase suction unit and a control unit, and the outdoor part comprises an injecting / shattering well and a seeping well. The in situ bioremediation of the underground oil pollution is realized by utilizing the steps of pneumatic shattering, injecting bacterium, maintaining pressure, reinjecting aeration, pausing and cycling of the system provided by the invention. The system has the advantages of short process flow, compact structure, simple operation and complete realization of automatic control.

Description

technical field [0001] The invention belongs to the technical field of auxiliary restoration of oil pollution, and in particular relates to a reinjection type double well gas breaker assisted underground oil pollution in-situ bio-remediation system and an auxiliary repair method thereof. Background technique [0002] With the adjustment of my country's energy structure and the rapid development of the transportation industry, the consumption of petroleum fuels and petroleum products is increasing day by day. However, in the current state, problems such as leakage and volatilization are common in units such as oil extraction, transmission, refining, and gas stations. Serious pollution of groundwater and soil. Organic pollution in soil and groundwater often has the characteristics of many types, low content, great harm, and difficult treatment. In addition to aliphatic hydrocarbons and aromatic hydrocarbons, petroleum products also contain a considerable amount of phenols an...

Claims

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Application Information

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IPC IPC(8): B09C1/10C12S1/00
Inventor 李恭臣黄国和谭倩陈玉敏张晓东
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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