What are the traditional solid waste treatment technologies?

Marine disposal is mainly divided into two ways: ocean dumping and ocean burning. With the deepening of people's understanding of the ecological importance of environmental protection and the improvement of overall environmental awareness, marine disposal has been more and more restricted.

2. Underground disposal

Landfill disposal: it is a final disposal technology developed from traditional stacking and landfill disposal. Because of its simple process and low cost, it is suitable for the treatment of various types of waste and has become the main method of solid waste treatment.

harm

Solid waste is the pollution source of the environment. In addition to direct pollution, it often pollutes the environment through water, atmosphere and soil.

Unlike waste gas and waste water, solid waste will not migrate and spread everywhere and must occupy a lot of land. The phenomenon of urban solid waste occupying land is becoming more and more serious. In China, there are 6 billion tons of industrial solid waste and 500 million tons of domestic garbage. It is estimated that 6.5438+million tons of solid waste can't be treated every year, which is piled up in the suburbs or on both sides of expressway, and tens of thousands of hectares of land are embezzled by it.

Soil is the basis of plant survival. Long-term use of "garbage fertilizer" of broken bricks and tiles will seriously "slag" the soil; Untreated hazardous wastes will penetrate into the soil after weathering and leaching in the soil, killing soil microorganisms and destroying soil corrosion and decomposition ability.