Waste management systems are incomplete without landfills, which act as containment facilities to stop contaminants from spreading into the surrounding environment. In order to guarantee these facilities’ long-term stability and environmental safety, the design and construction of an efficient landfill liner are essential. The purpose of this study is to determine whether waste fly ash-amended bentonite can be used in landfill liner systems by examining its compaction properties. Testing and analyzing the compaction properties of waste fly ash-amended bentonite mixtures in the laboratory were part of the research methodology. The pozzolanic properties of fly ash, which have an impact on the mixture's water absorption and particle packing characteristics, are to blame for this trend. Additionally, the compaction properties of the waste fly ash-enhanced bentonite were contrasted with those of conventional bentonite liners, which are frequently utilized in landfill engineering. The findings indicated that the bentonite modified with waste fly ash had comparable or improved compaction properties, making it a possible alternative for landfill applications as a liner material. In conclusion, this research focuses on the compaction properties of bentonite modified with waste fly ash for use in landfill liner systems. Further examinations are justified to evaluate the drawn-out exhibition and solidness of the waste fly debris corrected bentonite liner with regards to pressure driven conductivity and pollutant relocation, guaranteeing its adequacy in giving viable control and limiting ecological effects in landfill locales.