Algal polycultures enhance coproduct recycling from hydrothermal liquefaction

作者：Godwin Casey M^*; Hietala David C; Lashaway Aubrey R; Narwani Anita; Savage Phillip E; Cardinale Bradley J

来源：Bioresource Technology, 2017, 224: 630-638.

DOI：10.1016/j.biortech.2016.11.105

• Algal biofuels
• Biodiversity
• Nutrient recycling
• Hydrothermal liquefaction
• Coproduct recycling

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.

• 出版日期2017-1