The screening and crushing bucket of soil remediation equipment has the functions of screening, crushing, mixing, stabilizing and stirring, and has a wide range of applications in soil remediation projects. With small investment cost, flexible and convenient use, one screening bucket can realize multiple equipment functions, which is an efficient tool for soil remediation.
Soil remediation refers to the use of physical, chemical, and biological methods to transfer, absorb, degrade, and transform pollutants in soil to reduce their concentration to acceptable levels, or to convert toxic and harmful pollutants into harmless substances. Fundamentally, the technical principles of contaminated soil remediation can include: (1) changing the form of pollutants in the soil or the way they bind to the soil, reducing their mobility and bioavailability in the environment; (2) Reduce the concentration of harmful substances in the soil.
1. Technical classification
There are three main remediation technologies: physical remediation technology, chemical remediation technology and biological remediation technology.
2. Technology Selection
(1) The principle of adapting measures to local conditions
The choice of soil remediation technology is influenced by many factors: environmental conditions, source and toxicity of the contaminant, current and potential hazards of the contaminant, physicochemical properties of the soil, land-use properties, duration of remediation, public acceptance, and cost-effectiveness. Therefore, in practical application, it is necessary to choose the appropriate technical method according to the actual situation.
(2) The principle of feasibility
Soil remediation equipment should consider two aspects of feasibility when selecting remediation methods for different types of contaminated soil: economic feasibility, the actual situation and economic affordability of the polluted land should be considered, and the cost should not be too high; Technical feasibility, the technology used must be reliable, feasible, and capable of achieving the intended remediation purpose.
(3) The principle of protecting cultivated land
Our country has little land and many people. Cultivated land resources are scarce, and when selecting remediation technologies, the secondary pollution and sustainable use of soil should be fully considered to avoid the complete loss of production capacity of the soil after treatment, such as vitrification technology, heat treatment technology and curing technology.
