Alternative Fuel : Refuse-derived fuel (RDF)

The management and disposal of solid waste are one of the major challenges facing the world. How to protect public health and the environment through effective treatment methods, technologies and concepts is the top priority.

At present, the main methods of disposing of solid waste include landfill, composting, recycling, and incineration. Landfills are the most commonly used solid waste disposal method worldwide, despite the significant impact on the environment, health, and economy. However, the landfill of solid waste also faces many problems, which are mainly reflected in the decrease in landfill space and the increasing public awareness of environmental protection. As a result, the current treatment of solid waste is more inclined to recycle solid waste before landfills, and refuse-derived fuel (RDF) is receiving more and more attention. If properly managed, solid waste can be a viable alternative fuel rather than a source of pollution.

The idea behind alternative fuels is to convert mixed solid waste into RDF. By reducing the moisture content of waste, increasing the calorific value of waste to replace traditional energy (coal), while reducing emissions of pollutants.

Cement manufacturing is considered one of the world's largest energy consumers. It also faces economic and environmental challenges. Therefore, solid waste as an alternative fuel has a lot of potential in this field. To meet the 120 KWH/ton energy requirement, cement plants use 12 to 15 percent of total global industrial energy. In terms of CO2 emissions, 5%-7% of global CO2 emissions are generated by the cement industry. However, several studies have shown that those numbers have declined by about 5 percent worldwide in recent years due to increased energy efficiency and the use of alternative fuels.

European countries' well-established waste collection systems and mature treatment experience show that the use of alternative fuels in cement production can save companies a lot of money, and can significantly reduce the amount of solid waste that needs to be buried, greenhouse gas emissions, and energy (coal) consumption.

The RDF and TDF preparation technologies independently developed by Harden, such as domestic waste processing system, bulk waste processing system, industrial solid waste processing system, waste tires processing system, etc., carry out in-depth research on the processing technology in view of the domestic complex material situation, and finally obtain high quality and high calorific value RDF products.