Algal polycultures enhance coproduct recycling from hydrothermal liquefaction

Casey M. Godwin, David C. Hietala, Aubrey R. Lashaway, Anita Narwani, Phillip E. Savage, Bradley J. Cardinale

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


The aim of this study was to determine if polycultures of algae could enhance tolerance to aqueous-phase coproduct (ACP) from hydrothermal liquefaction (HTL) of algal biomass to produce biocrude. The growth of algal monocultures and polycultures was characterized across a range ACP concentrations and sources. All of the monocultures were either killed or inhibited by 2% ACP, but polycultures of the same species were viable at up to 10%. The addition of ACP increased the growth rate (up to 25%) and biomass production (53%) of polycultures, several of which were more productive in ACP than any monoculture was in the presence or absence of ACP. These results suggest that a cultivation process that applies biodiversity to nutrient recycling could produce more algae with less fertilizer consumption.

Original languageEnglish (US)
Pages (from-to)630-638
Number of pages9
JournalBioresource technology
StatePublished - Jan 1 2017

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


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