Multi-section biological combination control underground petroleum hydrocarbon pollution system

Abstract

The invention relates to a multi-section biological combination control underground petroleum hydrocarbon pollution system. According to the application of the actual situation of a site, the multi-section biological combination control underground petroleum hydrocarbon pollution system is divided into an underground floating oil recovery system, an underground water pumping enhanced floating oilrecovery system, an underground water flooding enhanced floating oil recovery system, a biological flooding system enhanced floating oil recovery system and a source microbial degradation system. According to the invention, the multi-section biological combination control underground petroleum hydrocarbon pollution system is used in combination with an underground water blocking wall so as to recover floating oil in a stratum and prevent the floating oil from leaking; floating oil recovery equipment is taken as a core, a pneumatic pump or a submersible pump is taken as an auxiliary, and a water flooding washing or biological flooding washing technology is combined, so that various pollution control systems suitable for different pollution sites are formed, the content of a light non-aqueous phase in underground water is reduced as much as possible, and the floating oil in the underground water can be completely recovered; and the pollution control system is utilized to perform risk control on the polluted land parcel to achieve the management, control and restoration goals.

Description

technical field [0001] The invention belongs to the field of hydrogeology, environmental engineering, and the field of soil and groundwater pollutant control and restoration, and relates to combined technologies such as microorganisms and multiphase extraction, and specifically relates to a multi-stage biological combination control system for controlling underground petroleum hydrocarbon pollution. Background technique [0002] In recent years, with the rapid development of the chemical industry, a large amount of light non-aqueous liquid (LNAPL) enters the soil and groundwater every year during the production, transmission, storage and use of chemical products, becoming an important type of pollution. Substances, common ones include gasoline, kerosene, p-xylene, etc. This type of LNAPL has low water solubility and is not easy to degrade and remove. Most of them are carcinogenic, teratogenic, and mutagenic. Most of them have been listed as toxic and harmful organic pollutan...

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Problems solved by technology

[0005] In order to solve the problem of oil slick pollution in groundwater and its management and control, and in view of the characteristics of oil slick pollution, the present invention provides a multi-stage three-dimensional biological underground petroleum hydrocarbon system that can be stably applied to polluted plots of enterprises in production and whose main goal is control. Pollution Control System

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