How to use chemical washing technology to remove soil nuclear pollutants after detection
Chemical washing technology refers to the injection of biochemical solvents that can promote the dissolution or migration of pollutants in the soil environment into the polluted soil layer through hydraulic pressure or gravity, and transfer the solid phase heavy metals in the soil to the liquid. pha
Chemical washing technology refers to the injection of biochemical solvents that can promote the dissolution or migration of pollutants in the soil environment into the polluted soil layer through hydraulic pressure or gravity, and transfer the solid phase heavy metals in the soil to the liquid. phase, and then the liquid containing pollutants is extracted from the soil layer for separation and sewage treatment. This technology takes advantage of the difference in physical properties of soil and pollutants (such as volatility, behavior in an electric field) or the difference in physical properties of polluted and uncontaminated soil particles (such as density), and uses physical and mechanical methods to separate pollutants. Separate from the soil matrix.
If you want to use chemical washing technology to remove nuclear pollutants, you need to first determine the type, concentration, distribution and migration characteristics of pollutants, as well as the physical and chemical properties, permeability and water content of the soil. These factors will affect the selection of eluent, the design of eluting conditions and the evaluation of eluting effect. Then, you need to choose a suitable eluent or chemical additive to improve the solubility or mobility of nuclear contaminants. Commonly used eluents or chemical additives include acidic solutions, alkaline solutions, complexing agents, surfactants, oxidizing agents, reducing agents, etc. Different nuclear pollutants may require different eluents or chemical additives, so you need to test and optimize according to the specific situation. Finally, you need to inject eluent or chemical additives into the contaminated soil layer, and collect the solution containing nuclear pollutants through extraction wells, etc., for further treatment or disposal.
Chemical washing technology has certain advantages in the remediation of heavy metal-contaminated soil, such as simple operation, low cost, and high efficiency. However, this technology also has some limitations and risks, such as it may cause secondary pollution, affect soil fertility, and change soil structure. Therefore, there are a few things you need to be aware of when using this technique:
Select the appropriate eluent or chemical additives to avoid excessive acidification or alkalization of the soil, affecting soil microbial activity and vegetation growth;
Control the dosage and concentration of eluent or chemical additives to avoid waste or overreaction;
Monitor the concentration change and migration range of nuclear pollutants during the washing process to avoid groundwater pollution or expand the contaminated area;
Effectively treat or dispose of solutions containing nuclear pollutants to avoid secondary pollution or potential safety hazards.
Soil chemical washing remediation is an efficient, flexible and economical soil remediation technology, which has broad application prospects in the global market. With the advancement and innovation of technology, the growth and diversification of market demand, and the intensification and optimization of market competition, Desen washing vehicle, as the world's first mobile soil washing repair equipment launched by Desen Environment, will be used in more Contaminated sites play an important role and contribute to the improvement and sustainable development of the global soil environment.