Inactivation of Cyclotella meneghiniana to prepare biochar by in-liquid pulsed discharge plasma

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dc.contributor.authorMassima Mouele, Emile Salomon
dc.contributor.authorPetrik, Leslie Felicia
dc.contributor.authorBladergroen, Bernard Jan
dc.date.accessioned2026-01-21T14:01:52Z
dc.date.available2026-01-21T14:01:52Z
dc.date.issued2025
dc.description.abstractThe large-scale outbreaks of harmful algal blooms continue to impact river and lake ecosystems. Converting harmful algal blooms into algal biochar presents a novel approach. This work investigates the inactivation of Cyclotella meneghiniana (the dominant species in diatom blooms) to prepare biochar by in-liquid pulsed discharge plasma (LPDP). Under the conditions of a peak voltage of 30 kV and an electrode spacing of 7 mm, a 100 % inactivation ratio can be achieved within 20 min plasma treatment. The multiple physical and chemical effects generated by in-liquid pulsed discharge cause the cell structure destruction, chlorophyll-a content reduction, enzyme activity decrease, and malondialdehyde oxidative degradation leading to algal inactivation and biochar production. The obtained algal biochar has the advantages of a rich carbon content and a stable structure. This work provides a new technological option for resource utilization of algal blooms.
dc.identifier.citationLi, Y., Xin, Y., Sun, B., Man, C., Mouele, E., Petrik, L., Bladergroen, B.J. and Zhang, C., 2025. Inactivation of Cyclotella meneghiniana to prepare biochar by in-liquid pulsed discharge plasma. Biomass and Bioenergy, 200, p.108034.
dc.identifier.urihttps://doi.org/10.1016/j.biombioe.2025.108034
dc.identifier.urihttps://hdl.handle.net/10566/21799
dc.language.isoen
dc.publisherElsevier Ltd
dc.subjectAlgal biochar
dc.subjectIn-liquid pulsed discharge plasma
dc.subjectInactivation mechanism
dc.subjectInactivation of Cyclotella meneghiniana
dc.subjectPlasma
dc.titleInactivation of Cyclotella meneghiniana to prepare biochar by in-liquid pulsed discharge plasma
dc.typeArticle

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