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Remediation device for heavily contaminated soil

A soil remediation and heavily polluted technology, applied in the restoration of polluted soil, etc., can solve the problems of difficulty in meeting discharge standards, poor treatment effect, high treatment cost, etc., to reduce labor intensity, facilitate post-maintenance, and high treatment efficiency Effect

Inactive Publication Date: 2019-06-28
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the treatment of heavily volatile polluted soil mostly adopts digging the soil away from the site for incineration, landfill, hydraulic flushing, etc., but there are problems such as high processing cost and easy to produce secondary pollution.
The existing technology has the following defects: volatile and semi-volatile organic compounds are prone to secondary pollution, poor treatment effect, not environmentally friendly, and difficult to meet emission standards

Method used

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  • Remediation device for heavily contaminated soil
  • Remediation device for heavily contaminated soil
  • Remediation device for heavily contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] According to the following steps, the adsorption net base surface 8-9-3-9 of the present invention is manufactured, and by mass percentage:

[0073] Step 1: Add ozonated ultrapure water 9.2%, 4.1% 15-methyl-N-2-bis[6-[[[[(1-methylpropylene)amino]oxygen] to the stirred tank reaction tank Carbonyl]amino]hexyl]-3,12-dioxo-13-oxa-2,4,11,14-tetraazaheptadec-14-enamide 50% of the total, acrylate 4%, Inert dilute admixture of 3.3%, turn on the heating device to rapidly heat up, and at the same time stir at a stirring speed of 14r / min, when the temperature is 64°C, keep stirring at the same speed for 1.4h;

[0074]Step 2: Continue to increase the temperature of the stirred tank reaction tank and control it at 79°C. At the same time, control the speed of the mixer to 19r / min, and add the remaining 15-methyl-N-2-bis[6- [[[[(1-methylpropylene)amino]oxy]carbonyl]amino]hexyl]-3,12-dioxo-13-oxa-2,4,11,14-tetraazaheptadecane Carb-14-enamide, and condensate of 4,4'-(1-methylethylene)...

Embodiment 2

[0078] According to the following steps, the adsorption net base surface 8-9-3-9 of the present invention is manufactured, and by mass percentage:

[0079] Step 1: Add ozonized ultrapure water 96%, 48% 15-methyl-N-2-bis[6-[[[[(1-methylpropylene)amino]oxygen] to the stirred tank reaction tank Carbonyl]amino]hexyl]-3,12-dioxo-13-oxa-2,4,11,14-tetraazaheptadec-14-enamide 50% of the total, acrylate 81%, Inertly dilute the admixture to 47%, turn on the heating device to heat up rapidly, and at the same time stir at a stirring speed of 148r / min, when the temperature is 84°C, keep stirring at the same speed and keep warm for 16.4h;

[0080] Step 2: Continue to increase the temperature of the stirred tank reaction tank and control it at 196°C, and at the same time control the speed of the mixer to 196r / min, and add the remaining 15-methyl-N-2-bis[6- [[[[(1-methylpropylene)amino]oxy]carbonyl]amino]hexyl]-3,12-dioxo-13-oxa-2,4,11,14-tetraazaheptadecane Carb-14-enamide, and condensate ...

Embodiment 3

[0084] Compare the use effect of the adsorption net base surface 8-9-3-9 prepared in Example 1 and Example 2 with the same parts obtained in the comparative example. The improvement rate of high water impact stability, the impact pressure, the number of breaks per working day, and the improvement rate of corrosion resistance were counted, and the results are shown in Table 1.

[0085]

[0086] Note: In order to protect the interests of the enterprise and respect the wishes of the enterprise, the model, process, and parameter characteristics of the manufacturer of the comparative example are implied, which are similar to this application in terms of composition and processing technology.

[0087] It can be seen from Table 1 that the above-mentioned performance indexes of the adsorption network base surface 8-9-3-9 according to the present invention are all better than those produced by the prior art.

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Abstract

The invention provides a remediation device for heavily contaminated soil. The remediation device comprises a main conveying pipe, an electric appliance control cabinet, a heavy metal contaminated soil medicating, mixing and curing device, a main fermentation tank, a first-stage conveying pipe, a second-stage fermenting cabinet, a second-stage conveying pipe, a third-stage conveying pipe and a third-stage processing cabinet, wherein the heavy metal contaminated soil medicating, mixing and curing device, the main fermentation tank, the first-stage conveying pipe, the second-stage fermenting cabinet, the second-stage conveying pipe, the third-stage conveying pipe and the third-stage processing cabinet are communicated with the main conveying pipe through valves; one end of the heavy metal contaminated soil medicating, mixing and curing device is communicated with the main conveying pipe; the main fermentation tank is arranged on one side of the heavy metal contaminated soil medicating, mixing and curing device and is communicated with the heavy metal contaminated soil medicating, mixing and curing device through the first-stage conveying pipe; the second-stage fermenting cabinet arranged on the other side of the main fermentation tank and is communicated with the main fermentation tank through the second-stage conveying pipe; and the third-stage processing cabinet is arranged onthe other side of the second-stage fermenting cabinet and is communicated with the second-stage fermenting cabinet through the third-stage conveying pipe.

Description

technical field [0001] The invention relates to a soil heavy metal treatment technology, in particular to a heavily polluted soil restoration device. Background technique [0002] The production processes of modern petroleum exploration, mining, processing enterprises, as well as chemical and pharmaceutical enterprises often cause serious pollution to the soil. The volatile substances such as diesel oil, benzene, toluene, and carbon tetrachloride in these heavily polluted sites are very high, and Most of these pollutants are hydrophobic organic substances, which have low solubility in the water phase and can stay in the soil environment for a long time, which not only destroys the structure and function of the soil, but also has a serious impact on the physical and chemical properties of the soil. Long-term source of contamination of groundwater. At present, the treatment of heavily volatile polluted soil mostly adopts digging the soil away from the site for incineration, l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/10B09C1/08
Inventor 梁峙徐旭张明胜肖扬
Owner XUZHOU UNIV OF TECH