A compound agent and treatment method for treating chlorinated phenol-contaminated soil
A technology for polluted soil and compound chemicals, applied in the restoration of polluted soil, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of inability to remove odors for a long time, rebound of pollutant concentrations, difficult construction control, etc. Low cost, long-lasting oxidation effect, and the effect of preventing the spread of odors
Active Publication Date: 2021-11-09
BEIJING GEOENVIRON ENG & TECH
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Problems solved by technology
Some problems may arise during the application process: For example, 1) the above-mentioned oxidizing agents have a high redox potential, and the above-mentioned oxidizing agents used react more violently with organic matter, the reaction time is faster, the construction is difficult to control, and the application cost is relatively high. High; 2) The use of the above-mentioned oxidizing agents will lead to a strong saline-alkaline soil, and the subsequent use of the soil is strong; 3) The use of the above-mentioned oxidizing agents may cause a rebound in the concentration of pollutants in the soil; 4) Using the above-mentioned oxidizing agents , may not be able to remove the odor for a long time
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Embodiment 1
[0066] A chlorophenol application factory in Jiangsu Province uses chlorophenol, dichlorophenol, trichlorophenol, etc. The highest pollution concentration is 550mg / kg.
[0067] Ectopic governance methods include:
[0068] Step 1. Select an area with a pollution depth of 4m;
[0069] Step 2. First build a closed greenhouse in the surrounding area of the polluted plot;
[0070] Step 3, excavate the soil and store it in the greenhouse;
[0071] Step 4. After calculation, the application ratio of agent A in the polluted soil of the local plot is 0.8%. Divide agent A into three parts according to 5:4:1. First, mix 50% of agent A evenly with the soil to maintain a moisture content of 20 %;
[0072] Step 5. After calculation, the application ratio of agent B in the polluted soil of the local plot is 1%. Divide agent B into three parts according to 5:4:1. After mixing agent A for 10 hours, mix 50% of agent B evenly with the soil , to maintain a moisture content of 25%;
[0073...
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The invention discloses a compound medicament and a treatment method for treating chlorinated phenol polluted soil. The compound medicament comprises: agent A, whose main component is permanganate; agent B, whose main component is ferrate. The treatment method includes: adding a certain amount of agent A and agent B evenly in order and in proportion to the soil polluted by chlorophenol. There are two ways to add agent A and agent B: by adding in situ or by adding in a different place . Add to the soil medium three times, first add 50% of the total amount of agent A and agent B, then add 40% of the total amount of agent A and agent B, and finally add 10% of the total amount of agent A and agent B. On the premise of preventing the spread of soil odor, the invention can permanently and efficiently oxidize chlorophenol organic matter in soil, and permanently eliminate pollutants and odor in soil.
Description
technical field [0001] The invention relates to the technical field of remediation and treatment of chlorophenol-contaminated soil, in particular to a compound agent and a treatment method for treating chlorophenol-contaminated soil. Background technique [0002] Chlorophenol is mostly made of phenol as raw material through catalytic chlorination in the production process. In the 1990s, my country's production capacity for chlorophenol was low, the production process level was low and the production method was rough. Due to poor environmental protection awareness in factories in the 1990s, severe chlorophenol pollution occurred during the production process; at the same time, chlorophenol is also used as an organic chemical intermediate and is widely used in the fields of chemical industry, medicine and pesticides. Type production, leading to serious pollution of water and soil in the production areas of chemical enterprises and surrounding chemical areas. [0003] Chlorop...
Claims
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IPC IPC(8): C09K17/02B09C1/08
CPCC09K17/02B09C1/08
Inventor 张培苗竹闵玉涛倪鑫鑫朱湖地刘泽军秦森黄霞刘新赵越
Owner BEIJING GEOENVIRON ENG & TECH