News

Introduction to solid waste disposal methods and processes

Solid waste disposal mainly includes the following methods:

1. Pretreatment:

This is the first step in solid waste treatment. The main purpose is to reduce the volume of waste for subsequent treatment and transportation.

Common pretreatment technologies are:

● Compaction: Use physical means to increase the aggregation degree of solid waste and reduce its volume.

● Crushing: Use mechanical methods to destroy the internal aggregation force of solid waste and reduce the particle size.

● Sorting: According to the different material properties of solid waste, valuable and harmful components are separated to achieve “waste utilization”.

Xrido Group provides a complete set of solid waste disposal line equipment, including double-axis shredders, waste shredders, metal crushers, metal recycling machines, RDF briquetting machines, etc., which can customize solid waste disposal processes suitable for customers according to their actual materials.

2. Biological treatment:

Use the action of microorganisms to convert degradable organic matter in solid waste into stable substances.

Biological treatment is divided into aerobic composting and anaerobic digestion.

● Aerobic composting: Under aerobic conditions, aerobic microorganisms are used to decompose organic matter in solid waste, and the resulting compost is a high-quality soil conditioner and agricultural fertilizer.

● Anaerobic digestion: Under anaerobic or anoxic conditions, the biochemical process of using anaerobic microorganisms to convert biodegradable organic matter in waste into methane, carbon dioxide and stable substances.

3. Safe landfill: This is a disposal method for hazardous waste, the purpose of which is to sever the connection between waste and the environment so that it no longer harms the environment and human health.

4. Incineration: A high-temperature thermal treatment technology that uses excess air to react with the treated organic waste in an incinerator for oxidation and decomposition. Toxic and harmful substances in the waste are oxidized and pyrolyzed at high temperatures and destroyed.

5. Recycling: Classify and recycle solid waste with utilization value, such as metals, paper, plastics, etc., and reprocess them into new products. The selection of the above methods should be based on comprehensive considerations of factors such as the nature, composition, frequency of generation and treatment facilities of the solid waste. At the same time, when disposing of solid waste, relevant laws and regulations and standards should be strictly observed to ensure that no harm is caused to the environment and human health.