An electrokinetic enhanced oxidation process for the remediation of organically polluted soils
A technology of organic pollution and oxidation process, applied in the field of contaminated soil remediation, can solve the problems of restricting sustainable economic development, destroying the ecological environment, pollution, etc., and achieve the effects of promoting migration and oxidative degradation, reducing volatilization, and enhancing oxidation capacity
Active Publication Date: 2015-11-18
JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION
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Problems solved by technology
However, China has also paid a heavy price. Energy consumption and industrial and agricultural production activities have seriously damaged China's ecological environment. Air pollution, water pollution, soil and groundwater pollution threaten people's health and property safety, and also restrict China's environmental protection. further sustainable development of the economy
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Embodiment 1
[0025] An electrokinetic enhanced oxidation process for remediating organic polluted soil, the remediation of organic polluted soil includes the following specific steps:
[0026] (1) Select 500g of organic contaminated soil to be repaired, grind and pulverize it, and then sieve it with a 30-mesh nylon sieve. The soil particles obtained by sieving through a 30-mesh nylon sieve can be mixed with dipotassium hydrogen phosphate, iron powder and ferrous sulfate more evenly;
[0027] (2) add 1g dipotassium hydrogen phosphate to the organic polluted soil obtained in step (1) and mix, place 12h at room temperature after mechanical stirring mixes and maintain, add dipotassium hydrogen phosphate, can reduce the volatilization of organic pollutants, guarantee The reliability of the experimental results, 12 hours at room temperature can ensure the effect of dipotassium hydrogen phosphate;
[0028] (3) Add 0.5g iron powder, 10g ferrous sulfate and 0.5g fatty acid glyceride to the organic...
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The invention relates to the field of restoration of contaminated soil, and particularly relates to an electric intensive oxidation process for restoration of organic contaminated soil. The electric intensive oxidation process comprises the following steps: (1) taking the to-be-restored organic contaminated soil, grinding for crushing, sieving with a 30 mesh nylon screen; (2) adding dipotassium phosphate, mixing evenly and placing at room temperature; (3) adding iron powder, ferrous sulfate and fatty glyceride, mixing evenly and placing at room temperature; (4) adding a hydrogen peroxide solution with the mass fraction of 30%, mixing evenly and placing at room temperature; and (5) performing electric restoration. The beneficial effects of the an electric intensive oxidation process are that: by adding the dipotassium phosphate, the volatilization of organic pollutants is reduced; by adding the iron powder and the ferrous sulfate, the oxidation ability of the hydrogen peroxide solution is enhanced; by adding the fatty glyceride, full contact and reaction of an oxidizing agent and the organic pollutants are promoted; and a direct current is applied to the soil for electric restoration, promotes the migration and oxidative degradation of the organic pollutants in clay, and enables the content of soil organic matters to reach soil environment quality standards.
Description
technical field [0001] The invention belongs to the field of remediation of polluted soil, and in particular relates to an electrodynamically enhanced oxidation process for remediating organic polluted soil. Background technique [0002] Nearly three decades of economic growth, industrialization, and urbanization have brought great material wealth to China and greatly improved people's living standards. However, China has also paid a heavy price. Energy consumption and industrial and agricultural production activities have seriously damaged China's ecological environment. Air pollution, water pollution, soil and groundwater pollution threaten people's health and property safety, and also restrict China's environmental protection. sustainable economic development. In recent years, soil and groundwater pollution have received great attention, so there is an urgent need to research and develop remediation technologies that meet my country's national conditions. [0003] Soil ...
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IPC IPC(8): B09C1/00B09C1/08
Inventor 冯双剑唐晓声李海建
Owner JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION