Surfactant solution for repairing soil nitrobenzene pollution

Abstract

The invention relates to a surfactant solution for repairing soil nitrobenzene pollution. The surfactant solution comprises the following components: an ethanol solution, a phosphate salt ionic surfactant, a higher alcohol sulfate salt anionic surfactant, a polyoxyethylene ether nonionic surfactant, ethanol and deionized water. A use method of the surfactant solution is as follows: firstly placingnitrobenzene-contaminated soil into a 90% ethanol solution for pretreatment (the soil is completely immersed into the ethanol solution), performing standing for 20-30 min, performing filtering to obtain a contaminated soil for standby application, performing thorough and uniform stirring on the phosphate salt ionic surfactant, the higher alcohol sulfate salt anionic surfactant, the polyoxyethylene ether nonionic surfactant, ethanol and deionized water, and finally performing elution synergistic repairing on the nitrobenzene-contaminated soil by using the surfactant solution. The surfactant solution has the advantages of convenient operation, economy and practicability, relative environmental protection and safety, and relatively good synergistic repairing effects on the nitrobenzene-contaminated soil.

Description

technical field [0001] The invention belongs to the technical field of soil synergistic restoration, in particular to the technical field of synergistic restoration treatment of p-nitrobenzene soil pollution. Background technique [0002] With the continuous development of the national economy and the development of the chemical industry, environmental problems are becoming more and more serious, especially soil and water pollution are most closely related to people's daily life. Soil pollution has caused serious damage to people's life, diet and other aspects. influences. In soil pollution, relatively hydrophobic organic compounds are the main ones. Due to the characteristics of this type of organic compounds, they are easy to adsorb and not easy to be removed in soil pollution, which brings serious difficulties to soil pollution control. . Among the many hydrophobic organic compounds, nitrobenzene is the most serious soil pollution. [0003] Nitrobenzene is an important...

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Problems solved by technology

[0004] In order to solve the above problems and reduce the impact of nitrobenzene on soil pollution, people have also made a certain breakthrough in this research, using surfactant synergistic repair technology to treat soil pollution, but in this type of treatment, often A single surfactant synergistic repair technology is adopted. Although the single surfactant synergistic repair technology also reduces the impact of nitrobenzene on soil pollution to a certain extent, the effect is limited. In view of this, the present invention proposes a surface Technology of active agent solution synergistically remediating soil nitrobenzene pollution