The most practical method for soil remediation in brownfield is stabilization
Soil pollution is an environmental health hazard of brownfield development and utilization. Most of the pollutants in the brown soil are in the state of aging, so the remediation is difficult. Brownfield remediation requires rapid method. Through the above comparison, soil stabilization treatment is the most practical method for brownfield soil remediation.
Different countries have different definitions of brownfield. In the United States, brownfield refers to land that is complex because of or containing hazardous substances, contaminants, or contaminants. In the United Kingdom, brownfield focuses on land that has been used and is now unused. In Canada, brownfield is defined as abandoned, unused or unused commercial or industrial land.
Although these land contains or may contain pollutants, it has great potential development value. From the nature of land use, brownfield land is mostly industrial land, it can be abandoned or can be old industrial areas which are still being used, and the difference between other land use is mainly a certain degree of pollution or environmental problems. What pollutants might brownfield produce? Affected by long-term industrial production activities, may contain various pollutants in brownfield, such as mercury, chromium, lead, cadmium, arsenic, nickel and other heavy metals, and benzene, chlorinated hydrocarbons and petroleum hydrocarbons, PAHs, PCBs, pesticides and other organic matter. Because of industrial waste emission or pollution accidents, the concentration of pollutants in brown land is usually higher, and sometimes there is a free phase matter even in the soil and groundwater.
The toxic substances in the brown soil seep into the ground and volatilize and release toxic substances through soil and pipes. The toxicity can last for hundreds of years. What are the characteristics of brownfield pollution? Most of the pollutants in the brown soil are in the state of aging, adsorbed on the soil particles, especially the fine soil surface, or penetrate into the soil particles, and even embedded in the soil lattice. This is because the pollution of brown land is mainly caused by the production activities of the original industrial enterprises, and the time is long, most of them are chronic and cumulative pollution. Different from the soil pollution happened recently, pollutants in brownfield mostly is in the fixed state, the dispersal ability is relatively low, while soil pollution occurred, the adsorption and desorption between pollutants and soil and groundwater has not yet reached the equilibrium state, thus it is easy to transfer and diffusion.
Since 2004, China began to try to soil remediation of brownfield. At that time, some experts insisted that brownfield soil containing toxic and harmful heavy metals such as arsenic and chromium should be treated as hazardous waste. Thus, a major construction project in a city, all the original industrial land arsenic containing soil as hazardous waste for safe landfill. This treatment method is not only expensive, but also due to the limited capacity of landfill, seriously affecting the normal hazardous waste disposal, have to re excavation the soil, and the use of special remediation technology for processing. This is a serious lesson from brownfield soil remediation. Brownfield soils containing toxic and harmful heavy metals can not be treated indiscriminately as hazardous wastes. The correct approach should be to identify hazardous waste first.
PARFECT soil stabilization equipment can transfer the soil binder through the air compressor to the mixing head which is mounted on the excavator, and mix with the soil to improve the strength of the foundation.
Learn more about in situ soil stabilization
Different countries have different definitions of brownfield. In the United States, brownfield refers to land that is complex because of or containing hazardous substances, contaminants, or contaminants. In the United Kingdom, brownfield focuses on land that has been used and is now unused. In Canada, brownfield is defined as abandoned, unused or unused commercial or industrial land.
Although these land contains or may contain pollutants, it has great potential development value. From the nature of land use, brownfield land is mostly industrial land, it can be abandoned or can be old industrial areas which are still being used, and the difference between other land use is mainly a certain degree of pollution or environmental problems. What pollutants might brownfield produce? Affected by long-term industrial production activities, may contain various pollutants in brownfield, such as mercury, chromium, lead, cadmium, arsenic, nickel and other heavy metals, and benzene, chlorinated hydrocarbons and petroleum hydrocarbons, PAHs, PCBs, pesticides and other organic matter. Because of industrial waste emission or pollution accidents, the concentration of pollutants in brown land is usually higher, and sometimes there is a free phase matter even in the soil and groundwater.
The toxic substances in the brown soil seep into the ground and volatilize and release toxic substances through soil and pipes. The toxicity can last for hundreds of years. What are the characteristics of brownfield pollution? Most of the pollutants in the brown soil are in the state of aging, adsorbed on the soil particles, especially the fine soil surface, or penetrate into the soil particles, and even embedded in the soil lattice. This is because the pollution of brown land is mainly caused by the production activities of the original industrial enterprises, and the time is long, most of them are chronic and cumulative pollution. Different from the soil pollution happened recently, pollutants in brownfield mostly is in the fixed state, the dispersal ability is relatively low, while soil pollution occurred, the adsorption and desorption between pollutants and soil and groundwater has not yet reached the equilibrium state, thus it is easy to transfer and diffusion.
Since 2004, China began to try to soil remediation of brownfield. At that time, some experts insisted that brownfield soil containing toxic and harmful heavy metals such as arsenic and chromium should be treated as hazardous waste. Thus, a major construction project in a city, all the original industrial land arsenic containing soil as hazardous waste for safe landfill. This treatment method is not only expensive, but also due to the limited capacity of landfill, seriously affecting the normal hazardous waste disposal, have to re excavation the soil, and the use of special remediation technology for processing. This is a serious lesson from brownfield soil remediation. Brownfield soils containing toxic and harmful heavy metals can not be treated indiscriminately as hazardous wastes. The correct approach should be to identify hazardous waste first.
PARFECT soil stabilization equipment can transfer the soil binder through the air compressor to the mixing head which is mounted on the excavator, and mix with the soil to improve the strength of the foundation.
Learn more about in situ soil stabilization
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