The experiment process of producing solid fuel briquettes (using a binder) was as follows:
- Rejected material of municipal waste composting and sawdust were exposed to the open air.
- Raw materials were carbonized in a limited-air vessel with a capacity of 200 L. Twelve kg of rejected material of municipal waste composting and 10 kg of sawdust (a total of 1/5 of the vessel capacity) were placed into the carbonization vessel (pictured in Fig.1). The times required to carbonize rejected material of municipal waste composting and sawdust were 6 h and 4 h, respectively.