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Method for remedying organic compound pollution in soil and/or water

An organic compound and soil restoration technology, which is applied in the field of soil and/or organic compound pollution in water, can solve the problems of increasing the safety risk of the reaction environment, and achieve the effect of saving consumption

Active Publication Date: 2014-04-30
BEIJING GEOENVIRON ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Fenton method has strict requirements on the pH of the reaction field. At the same time, a large amount of combustion-supporting high-heat gas is released during the reaction, which increases the safety risk of the reaction environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The method that this embodiment is used to remediate organic compound pollution in soil is as follows:

[0026] (1) Use a 10 mL centrifuge bottle (glass) as the reaction vessel;

[0027] (2) Use analytically pure sodium persulfate as the main oxidant, and use a chelate with a mass ratio of ferrous sulfate (analytical pure) and glycolic acid (analytical pure) at a mass ratio of 1:3 as an activator (the preparation method of the chelate is: Dissolve ferrous sulfate in water according to the mass ratio, then add glycolic acid to obtain a chelate aqueous solution, the concentration of the chelate is 10g / L), use hydrogen peroxide (analytical pure) as a co-oxidant to oxidize the contaminated soil sample in the centrifuge bottle.

[0028] (3) The experimental procedure is described as follows:

[0029] a. Weigh 50 g of the contaminated soil sample into a centrifuge bottle, add 50 mL of deionized water and mix;

[0030] b. Add 1 g of sodium persulfate as the main oxidant, the...

Embodiment 2

[0040] The method that this embodiment is used to remediate organic compound pollution in soil is as follows:

[0041] (1) Use a 10 mL centrifuge bottle (glass) as the reaction vessel;

[0042] (2) Use analytically pure sodium persulfate as the main oxidant, and use a chelate with a mass ratio of manganese sulfate monohydrate (analytical pure) and glycolic acid (analytical pure) at a mass ratio of 1:5 as an activator, (the preparation method of the chelate Method: Dissolve manganese sulfate monohydrate in water according to the mass ratio, then add glycolic acid to obtain a chelate aqueous solution, the concentration of the chelate is 200g / L), use hydrogen peroxide (analytical pure) as a co-oxidant, oxidize the pollution in the centrifuge bottle Soil sample.

[0043] (3) The experimental procedure is described as follows:

[0044] a. Weigh 50 g of the contaminated soil sample into a centrifuge bottle, add 50 mL of deionized water and mix;

[0045]b. Add 1 g of sodium persul...

Embodiment 3

[0049] The method that this embodiment is used to remediate organic compound pollution in soil is as follows:

[0050] (1) Use a 10 mL centrifuge bottle (glass) as the reaction vessel;

[0051] (2) Use analytically pure sodium persulfate as the main oxidant, and use ferrous sulfate (analytical pure) and 3,4,5-trihydroxybenzoic acid (analytical pure) chelate with a mass ratio of 1:5 as the activator, (The preparation method of the chelate is: dissolve ferrous sulfate in water according to the mass ratio, and then add 3,4,5-trihydroxybenzoic acid to obtain an aqueous solution of the chelate, and the concentration of the chelate is 10 g / L), Use hydrogen peroxide (analytically pure) as a co-oxidant to oxidize the contaminated soil samples in the centrifuge bottle.

[0052] (3) The experimental procedure is described as follows:

[0053] a. Weigh 50 g of the contaminated soil sample into a centrifuge bottle, add 50 mL of deionized water and mix;

[0054] b. Add 1 g of sodium per...

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Abstract

The invention discloses a method for remedying the organic compound pollution in soil and / or water. The method comprises the following steps: adding persulfates into the soil which is dispersed in the water and subjected to the organic compound pollution, or adding the persulfates into the water subjected to the organic compound pollution; adjusting the pH (Potential of Hydrogen) value to 3-12; adding hydrogen peroxide; and finally adding an activating agent, wherein the activating agent is a chelate chelated by metal salts and a chelate agent; the metal salt is selected from one or any combination of two of Fe salts or Mn salts. In the condition that the same amount of the organic compound is oxidized, the method provided by the invention can be used for greatly saving the consumption of hyperoxides.

Description

technical field [0001] The invention belongs to the deep oxidation technology of soil and / or water in the technical field of environmental engineering, and in particular relates to a method for remediating organic compound pollution in soil and / or water. Background technique [0002] Existing academic literature has shown that organic compound pollutants in soil and / or water seriously threaten ecological balance, affect citizens' health and restrict economic development. Since the 1970s, many developed countries have successively invested a large amount of capital in related restoration technology research. For example, the US government has invested more than 10 billion US dollars in the research and development of soil restoration technology since 1980, and promulgated the "Resource Conservation and Recovery Act". (RCRA) and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to strengthen the control and management of environmental pollutio...

Claims

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Application Information

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IPC IPC(8): B09C1/08C02F1/72C02F101/30
Inventor 吕正勇魏丽韩宝禄李淑彩冯国杰朱湖地苗竹
Owner BEIJING GEOENVIRON ENG & TECH
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