Chemical compositions and wastewater properties of aqueous phase (wastewater) produced from the hydrothermal treatment of wet biomass: A review

Lijian Leng, Wenguang Zhou

Research output: Contribution to journalReview article

12 Scopus citations

Abstract

Hydrothermal processing technology, a process for treatment of wet biomass for biofuel production, produces a byproduct wastewater (aqueous phase, AP) during bio-oil production, which is becoming an impeding factor for the industrialization of the hydrothermal process. Chemical compositions and wastewater properties of AP produced from hydrothermal processing wet biomass provides very important information for its utilization. The present manuscript reviewed the recent development on production and chemical compositions and wastewater properties of AP derived from the hydrothermal processing of wet biomass. The relationships between AP properties and biomass compositions and processing conditions were discussed. The possible reaction pathways account for the resultant AP was also discussed. The present review would be useful to give comprehensive information on AP and contribute to the investigation on effective utilization of AP.

Original languageEnglish (US)
Pages (from-to)2648-2659
Number of pages12
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume40
Issue number22
DOIs
StatePublished - Nov 17 2018

Keywords

  • By-product
  • co-product
  • deamination
  • hydrolysis
  • hydrothermal carbonization
  • hydrothermal gasification
  • hydrothermal liquefaction
  • microalgae
  • post-processing wastewater
  • sub-/super-critical water

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