Shanghai domestic waste screening system

With the rapid growth of urban populations and consumption levels, Shanghai generates a large amount of domestic waste every day. To cope with the increasing pressure of waste treatment and to promote sustainable development, the city has adopted an advanced domestic waste screening system. The core aim of this system is to achieve the principles of “reduction, recycling, and harmless disposal,” while supporting Shanghai’s overall green development strategy and circular economy goals.

The system is designed to classify mixed domestic waste into different categories through multiple stages of screening and sorting. Recyclable materials such as metals, plastics, paper, and glass are efficiently separated using magnetic separation, wind sorting, and manual picking when necessary. Organic fractions, mainly from food and kitchen waste, are isolated for composting or bioenergy production. Inert residues, such as construction debris, ceramics, and ash, are further processed or safely disposed of in landfills.

To achieve these results, the system integrates a combination of modern equipment and technologies. Vibrating and drum screens are used for initial particle size separation. Magnetic separators extract ferrous and non-ferrous metals, while wind sorting devices distinguish light materials like plastics from heavier ones. Washing and cleaning units further improve the quality of recovered materials, ensuring higher reuse value. Dust collectors and wastewater treatment facilities are also included to minimize secondary pollution during operation.

The implementation of this waste screening system has brought several benefits to Shanghai. It significantly improves the recovery rate of valuable resources, reduces the amount of waste sent to landfills, and lowers the risk of soil and water contamination. Moreover, it helps optimize the entire waste management process, ensuring compliance with local regulations such as the Shanghai Household Waste Management Regulation.

In conclusion, the Shanghai domestic waste screening system provides an integrated solution for efficient waste management. By combining advanced technologies with environmental protection measures, it not only addresses the city’s waste challenges but also contributes to the long-term vision of a greener and more sustainable urban future.