Journal of Chemistry and Chemical Research

A large amount of leachate generated during the operation of waste incineration plants contains high-concentration organic matter. Direct discharge of such leachate not only causes environmental pollution but also increases treatment costs. Coupling leachate treatment with a biogas power generation system—where biogas is produced through anaerobic digestion and then used for power generation—can achieve the dual goals of waste reduction and energy recovery. Taking energy balance analysis as the core research approach, this paper explores the relationships between biogas production, power generation efficiency, and system energy recovery rate during the anaerobic treatment of leachate. The results show that reasonable optimization of anaerobic digestion processes and waste heat recovery measures can significantly improve the net energy output of the system and reduce operational energy consumption. This study provides a reference path for waste incineration plants to realize resource recycling and energy self-sufficiency.

Waste incineration plant; Leachate treatment; Biogas power generation; Energy balance