Figure 7
A Venn diagram illustrating the relationships between waste, RDF, and SRF. The diagram consists of three concentric circles. The outermost circle represents 'Waste,' which includes hazardous waste, non-hazardous waste, solid waste, liquid waste, sewage sludge, and bio waste. The middle circle represents 'RDF,' which stands for non-hazardous solid waste prepared for energy recovery. This circle is divided into two sections: unspecified RDF, not covered by standards, and RDF covered by quality agreement between producers and users. The innermost circle represents 'SRF,' which stands for Standardised RDF according to ISO 21640:2021.The interconnection between waste, RDF and SRF. Source: Authors' own work