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A method for treating soil organic pollutants

A technology for organic pollutants and soil, which is applied in the field of new ventilation equipment for dealing with soil organic pollutants. It can solve problems such as long repair time, large repair site, and impact on secondary development of land, and achieve low treatment and repair costs. Effect

Active Publication Date: 2016-03-23
TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the bio-ventilation technology often used in soil remediation projects is mainly in-situ bio-ventilation technology. First, the restoration conditions are often difficult to control because the site is too large. Second, the commonly used restoration time is too long, which affects the secondary development of the land.

Method used

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  • A method for treating soil organic pollutants
  • A method for treating soil organic pollutants
  • A method for treating soil organic pollutants

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Embodiment Construction

[0031] In order to have a deeper understanding of the present invention, a specific embodiment is listed below, and the present invention is further described in detail in conjunction with the accompanying drawings.

[0032] This embodiment is a kind of heterotopic biological ventilation equipment for treating soil organic pollutants, such as figure 1 As shown, it mainly includes: an outer box 1, an air outlet pipe 2, a box cover 3, a nozzle 4, an inner box 5, a blower 6, a ventilation pipe belt 7, a gas flow meter 8, a throttle valve 9 and an air inlet pipe 10.

[0033] In this embodiment, the ventilation pipe belt 7 is fixedly installed in the inner box 5, and a geotextile is laid on the ventilation pipe belt 7. A gravel layer of a certain thickness is laid on the geotextile, and a geotextile is laid on the gravel layer, so that the air can be evenly distributed. into the bottom of the inner box.

[0034] In this embodiment, the polluted soil is divided into 4 different lev...

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Abstract

The invention provides a ventilation device for treatment of soil organic pollutants. The ventilation device comprises an inner box and an outer box with the periphery and the top sealed, wherein the inner box is used for being filled with polluted soil, and the outer box can cover the inner box and a bottom opening. A ventilation pipe strip composed of a plurality of ventilation pipes is arranged at the bottom inside the outer box, an air inlet pipe of the ventilation pipe strip is connected with an air blower, and an air outlet pipe of the ventilation pipe strip is communicated with the outside. The ventilation device can move flexibly, air used is renewable energy, the ventilation device is low in cost and free of secondary pollution, and modularized simultaneous restoration of soil of different pollution types and different pollution degrees in the same device can be achieved.

Description

technical field [0001] The invention relates to a novel ventilation device and method for treating soil organic pollutants, in particular to a device and method for removing volatile and semi-volatile organic pollutants. Background technique [0002] Biological ventilation technology, a typical soil treatment technology for contaminated sites, is developed on the basis of soil vapor extraction (SVE), which artificially transports air or oxygen at low flow rates to underground unsaturated areas to stimulate microbial activity and promote Biological aerobic degradation, so as to achieve the purpose of degrading volatile organic compounds. Biological ventilation is to optimize the delivery of oxygen and the efficiency of oxygen use, and to create aerobic conditions to promote biodegradation. [0003] Compared with other contaminated soil treatment technologies, biological ventilation technology has the main advantage of a wide range of applications, not only for light componen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B15/04B09C1/10
CPCB08B15/02B09C1/10
Inventor 张景辉杨伟李野宋震宇袁珊珊王文茜西伟力孙旭东蒋玉广王旭东
Owner TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION
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