Journal
WASTE AND BIOMASS VALORIZATION
Volume 9, Issue 12, Pages 2565-2570Publisher
SPRINGER
DOI: 10.1007/s12649-017-0033-8
Keywords
Spent coffee grounds; Alkaline pre-treatment; Anaerobic digestion; Methane
Categories
Ask authors/readers for more resources
Spent coffee grounds (SCGs) are potentially optimal substrates for methane production but the content of organic compounds refractory to anaerobic digestion reduces the yield of the process. Alkaline pre-treatment was applied to enhance the methane recovery from SCGs through anaerobic digestion. NaOH was applied with different loadings, namely 2, 4, 6, 8% w/w for 24h, to assess the efficiency of the process and the optimal amount of the basifying solution applied. The highest concentration of NaOH (8% w/w) lead to the best anaerobic digestion performances (392mLCH(4)/gVS) as a consequence of the slightly higher lignin degradation which was 24% higher than that of the untreated substrate, and of the higher dissolved organic carbon concentration.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available