Impact of degraded solid waste utilization as a daily cover for landfill on the formation of methane and leachate

• Published in: Bioresource technology reports Vol. 15; p. 100797
• Main Authors: Warmadewanthi, I.D.A.A., Chrystiadini, Gian, Kurniawan, Setyo Budi, Abdullah, Siti Rozaimah Sheikh
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2021
• Subjects: Aged refuse; Alternative technology; Biocover; Biogas; Reclamation; Waste management; Alternative technology; Waste management; Biocover; Biogas; Aged refuse; Reclamation
• ISSN: 2589-014X; 2589-014X
• DOI: 10.1016/j.biteb.2021.100797

Bio-cover, originated from degraded solid waste also known as aged refuse, is an alternative of daily cover soil for landfill. This study aims to examine the use of aged refuse as a daily cover for landfill. Bio-cover type (old and young aged refuse) and thickness (15, 20, and 30 cm) were used as variables in this research. Result showed that an old bio-cover with 15 cm thickness can reduce 98.10% of methane gas. It can also retain rainfall up to 20.52%. The old bio-cover with 30 cm thickness can also reduce leachate production up to 31.82%. In addition, the results showed that the differences of methane gas and leachate reduction in 15 vs 20 cm bio-cover thickness were significant. However, there was no significant difference between 20 vs 30 cm of bio-cover thickness. It can be concluded that the ideal bio-cover thickness for landfill cover soil was 20 cm. [Display omitted] •Degraded solid waste is suitable to be used as daily cover soil of landfill.•Bio-cover from old landfill significantly reduced the formation of leachate.•Bio-cover from old landfill significantly reduced the methane emission.•Bio-cover from young landfill significantly reduced COD concentration in leachate.