Heterotopia repairing system of volatile organic pollution soil and processing method thereof

A technology for volatile organic and polluted soil, which is applied in the field of soil ectopic remediation system, which can solve the problems of low natural ventilation intensity, secondary pollution of air induction system, lack of tail gas of remediation system, etc., and achieve wide soil range and flexible and simple detection points , Enhance the effect of biodegradation

Inactive Publication Date: 2009-02-04
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic patent CN1448227A "A method of ectopic bioremediation of polluted soil and special treatment facilities" involves a set of ectopic bioremediation methods using prefabricated beds and ventilation pipelines to repair polluted soil. The limitation of this patent technology lies in its The intensity of natural ventilation is low, the lack of repair system exhaust and air induction system is likely to cause secondary pollution, etc.

Method used

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  • Heterotopia repairing system of volatile organic pollution soil and processing method thereof
  • Heterotopia repairing system of volatile organic pollution soil and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The effects of Embodiment 1 of the ectopic biological ventilator and control system of the present invention are described below:

[0028] In this implementation example, the ectopic biological ventilation equipment and control system are attached figure 1Connect the pipeline and check the airtightness of the pipeline. The soil to be treated is taken from the oil sludge treatment area of ​​the second oil production area of ​​Gaosheng Oil Production Plant of Liaohe Oilfield, and the soil type is silty soil.

[0029] About 6m of oil-contaminated soil in Liaohe Oilfield after pretreatment 3 , by 2×3×1m 3 The bed volume of the present invention is divided into four layers of thickness (0.25m per layer) and paved on the ex-situ soil repair bed 1, and a plurality of ventilation holes are arranged on the ventilation pipe, the aperture is 2mm, and the hole distance is 5cm. The high-efficiency degradation solid bacterial agent and nutrient auxiliaries are added at 1% of the w...

Embodiment 2

[0042] The effects of the second embodiment of the ectopic biological ventilator and control system of the present invention are described below:

[0043] In this implementation example, the ectopic biological ventilation equipment and control system are attached figure 1 Connect the pipeline and check the airtightness of the pipeline. The soil to be treated is taken from the Gudong Oilfield of Shandong Shengli Oilfield, and the soil type is silty soil.

[0044] About 7.2m of oil-contaminated soil in the Gudong Oilfield of Shengli Oilfield after pretreatment 3 , by 2×3×1.2m 3 The bed volume of the present invention is divided into three layers of thickness (0.40m per layer) and paved on the ex-situ soil repair bed 1, and a plurality of ventilation holes are arranged on the ventilation pipe, the aperture is 4mm, and the hole distance is 10cm. The high-efficiency degradation solid bacterial agent and nutrient auxiliaries are added at 1% of the weight of the pretreated soil an...

Embodiment 3

[0057] The effects of Embodiment 3 of the ectopic biological ventilator and control system of the present invention are described below:

[0058] In this implementation example, the ectopic biological ventilation equipment and control system are attached figure 1 Connect the pipeline and check the airtightness of the pipeline. The soil to be treated is taken from the Binnan Oilfield of Shengli Oilfield, and the soil type is sandy clay loam.

[0059] About 10.8m of oil-contaminated soil in Binnan Oilfield of Shengli Oilfield after pretreatment 3 , by 2×3×1.8m 3 The bed volume of the present invention is divided into three layers of thickness (0.60m per layer) and paved on the ex-situ soil repair bed 1, and a plurality of ventilation holes are arranged on the ventilation pipe, the aperture is 5mm, and the hole distance is 15cm. The high-efficiency degradation solid bacterial agent and nutrient auxiliaries are added at 1% of the weight of the pretreated soil and mixed evenly. ...

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Abstract

The invention relates to a system for the ectopic restoration of volatile organic polluted soil and a disposing method thereof. The system for the ectopic restoration of the volatile organic polluted soil comprises a soil restoring bed, a ventilation pipeline system, a liquid charging system, a detecting system, an induced draught system and a closed-circuit tail gas collecting and disposing system. The soil restoring bed is a closed system. The ventilation pipeline system and the detecting system are arranged in the soil restoring bed. The liquid charging system is arranged above the soil restoring bed. The soil restoring bed is connected with the closed-circuit tail gas collecting and disposing system by the induced draught system. Polluted soil is used as a carrier to be connected with the soil restoring bed, the ventilation pipeline system and the detecting system. The system and the method can be used as an economical and feasible ectopic soil ventilation and microorganism degradation coupling restoration device of project application scale and a control method thereof, the control and the restoration technology are organically combined and improved according to local conditions, so as to achieve the unification of the factors such as expense, effect, operability, etc.

Description

technical field [0001] The invention relates to an ex-situ repair system for soil, in particular to a system and a treatment method for ex-situ repair of soil with volatile organic pollution. Background technique [0002] At present, soil pollution in our country is becoming more and more serious, which not only destroys the ecological system of the soil itself, directly or indirectly endangers human health, but also forms cross-media pollution, especially posing a threat to groundwater resources and causing serious consequences. Engineering Restoration Technology. [0003] Soil remediation technology can be divided into physical remediation, chemical remediation and biological remediation. Physical remediation includes leaching method, heat treatment method, etc. Chemical remediation includes solvent extraction method, redox method, etc. Bioremediation includes microbial remediation, phytoremediation and animal remediation. These repair methods are further divided into in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/10
Inventor 隋红李鑫钢黄国强姜斌李忠媛杨乐巍李洪吴国钟
Owner TIANJIN UNIV
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