| 3 | Methane production from Sargassum muticum:effects of seasonality and of freshwater washes显示文摘Biogas production from Sargassum muticum,an invasive seaweed species to Europe,is hampered by low methane(CH_(4))yields during anaerobic digestion(AD),but causes are unclear.This research is the first to demonstrate the impact of extensive freshwater washing of spring-and summer-harvested S.muticum on the CH_(4)production rates and the biochemical methane potential(BMP).The findings reveal that the rate profile of CH_(4)production is affected by extensively washing the seaweed and is dependent on seasonality.Spring-harvested S.muticum had higher initial CH_(4)production rates compared to summer-harvested S.muticum.For spring-harvested S.muticum,the initial rate of CH_(4)production was lowered by extensive washing.In contrast,extensively washed summer-harvested S.muticum had a higher degradation rate and CH_(4)production rate relative to its non-extensively washed counterpart.The highest CH_(4)potentials accumulated by the treated and non-treated S.muticum are,however,statistically similar and not influenced by seasonality or extensive washing(p>0.05).Potential causes for differences in the rate of CH_(4)production between summer-and spring-harvested S.muticum are discussed.The differences in CH_(4)production from treated summer-and spring-harvested S.muticum acts as a stepping stone to understanding the causes for low CH_(4)yields,which could allow for further enhancements in CH_(4)production from S.muticum. | Supattra Maneein John J.Milledge Patricia J.Harvey Birthe V.Nielsen | 2021 | Energy and Built Environment2021，2，3： | 0 |
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