Technology for full classification recycling treatment on household waste

Abstract

The invention discloses a technology for full classification recycling treatment on household waste and relates to the field of recycling integrated utilization of household waste. A main process route of the technology comprises that household waste is homogenized by a homogenizer, is subjected to large object sorting (wherein large objects comprise large combustibles and inorganic matters), is treated by a bag breaking device (for scratching a plastic packaging bag), is treated by a magnetic separator (for separating out magnetic materials), is treated by an eddy sorting machine (for separating out nonferrous metals), is subjected to artificial sorting, then is broken, is fed into a hydrothermal degradation tank, is treated by a light material separator (for separating out papers and plastics), and then is crushed; then mixed organic matters and percolate are mixed and then are subjected to methane fermentation so that methane is produced; and methane residues and a methane liquid are prepared into an organic fertilizer and inorganic matters are prepared into a building material and the combustibles are prepared into a refuse derived fuel (RDF). The technology really realizes reduction, harmlessness and recycling of waste.

Description

technical field

[0001] The invention belongs to the field of comprehensive treatment of solid waste resources, and is a process for sorting, collecting, treating and utilizing domestic waste according to different types. Background technique

[0002] The garbage problem has become a problem that plagues countries all over the world. With the intensification of urbanization and the improvement of people's living standards, the amount of domestic garbage is increasing. Garbage will be a burden on urban development. Many cities in the world have been surrounded by garbage. situation.

[0003] At present, the commonly used treatment methods for urban waste are: sanitary landfill, incineration, and composting. These three treatment methods have their limitations and are likely to cause secondary pollution. Based on the principle of "clean and pollution-free", fully recycle the resources and energy in the garbage, and reduce the amount of garbage disposal.

[0004] At present, t...

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