A New Solution for the Treatment of Soil Contaminated by Petroleum Hydrocarbons
Common remediation technologies for soil contaminated by petroleum hydrocarbons include physical, chemical and biological treatment technologies. Among them, physical treatment uses physical principles to reduce the content of pollutants in the soil. This method mainly includes landfill, gas phase e
Common remediation technologies for soil contaminated by petroleum hydrocarbons include physical, chemical and biological treatment technologies. Among them, physical treatment uses physical principles to reduce the content of pollutants in the soil. This method mainly includes landfill, gas phase extraction, ultrasonic cleaning, electric remediation, etc. Chemical treatment refers to adding relevant reagents to the soil to reduce the concentration of petroleum pollutants by using their adsorption and oxidation effects on pollutants. Specific methods include chemical washing, thermal decomposition, chemical oxidation, photocatalytic oxidation, etc. Today, Desen Environment will introduce you to the chemical washing technology for treating oil-contaminated soil.
Desen oil-containing soil washing equipment mainly uses chemical/biological solvents that can promote the dissolution or migration of pollutants in the soil, and washes and repairs the contaminated soil through a series of physical and chemical comprehensive treatment processes, and transfers heavy metals attached to the surface of soil particles from low-concentration solid pollutants to liquid phase for subsequent centralized treatment. The sand and gravel aggregates in the soil can be recycled after washing and grading. After dehydration, the leached mud solids can be safely backfilled if they meet the standards. If they do not meet the standards, they will enter the thermal desorption remediation system for further treatment. The waste liquid after dehydration enters the water treatment system for centralized treatment. The whole set of washing and remediation system can achieve the maximum reduction and comprehensive treatment of contaminated soil.
Desen oil-bearing soil hot washing system mainly includes: feeding module, scrubbing module, multi-stage washing and grading module, high-efficiency concentration module, filter press module, water treatment module, electrical control module, etc. The main factors affecting the effect of chemical hot washing of oil sludge include cleaning agent, hot washing temperature, hot washing time, liquid-solid ratio, stirring speed, etc.
In practical applications, Desen Environment's oil-bearing soil washing equipment has achieved remarkable results. After adopting this system, many enterprises and projects have not only successfully solved the treatment problems of oil-bearing soil, but also achieved a win-win situation of economic and environmental benefits. The outstanding performance of the system has been highly recognized and praised by users, further consolidating Desen Environment's leading position in the industry.
