As the global waste disposal problem becomes more and more serious, the traditional landfill method is increasingly questioned because of its long-term impact on the environment. This article will explore why landfill waste should be excavated and screened, and the importance of this process for environmental protection and resource recovery.

Landfills are one of the main methods of traditional waste disposal, but they have a profound impact on the environment. Landfills can contaminate groundwater and release harmful gases such as methane, which is a more potent greenhouse gas than carbon dioxide. In addition, landfills occupy a large amount of land resources that could be used for more beneficial purposes.

Second, the necessity of mining and screening

1. Environmental Remediation Excavation and screening of landfill waste can reduce the long-term impact on the environment. By removing hazardous waste and pollutants, pollution of groundwater and soil can be reduced, while reducing greenhouse gas emissions.

2. Resource recycling Many landfills contain recyclable materials such as plastics, metals and glass. Through excavation and screening, these materials can be recycled, reducing the need for new resources, lowering production costs, and reducing the amount of waste going to landfill.

3. Land reuse Excavation of landfills can free up land for more valuable uses, such as agriculture, residential or commercial development. This will not only help urban development, but also improve the efficiency of land use.

While there are many benefits to excavating and sifting landfill waste, the process also faces challenges, such as high costs, high technical requirements and public acceptance issues. To overcome these challenges, the following measures can be taken:

1. Government subsidies and incentives to reduce the cost burden of enterprises.

2. Invest in research and development to improve the efficiency and effectiveness of mining and screening techniques.

3. Public education to raise awareness of the importance of landfill excavation and screening.

Conclusion: The excavation and screening of landfill waste is a complex but necessary process that helps to reduce environmental pollution, promote resource recycling, and free up land resources. With governments, businesses and the public working together, we can move towards a more sustainable approach to waste disposal.