Microalgae from wastewater treatment to biochar – Feedstock preparation and conversion technologies

Kai Ling Yu, Pau Loke Show, Hwai Chyuan Ong, Tau Chuan Ling, John Chi-Wei Lan, Wei Hsin Chen, Jo Shu Chang

Research output: Contribution to journalReview articlepeer-review

137 Scopus citations


Microalgae have received increasing attentions due to its capacity of carbon fixation and serving as feedstock for producing biofuels and other value-added products. Microalgae can be used to remediate wastewater for simultaneously nutrient removal and biomass production, thereby significantly lowering the costs of microalgal feedstock. Recently, converting microalgal biomass biochar is of particular interest since biochar has numerous opportunities in application. In this review, innovative methods developed for microalgae-based wastewater treatment are described. Conventional and novel technologies used for producing biochar from microalgal biomass, such as pyrolysis and hydrothermal approaches, are presented. Future challenges and potential applications of the biochar derived from microalgal biomass collected from wastewater treatment system (e.g., soil amendment or adsorbent) are also discussed.

Original languageBritish English
Pages (from-to)1-13
Number of pages13
JournalEnergy Conversion and Management
StatePublished - 2017


  • Biochar
  • Microalgae
  • Microalgal biomass
  • Pyrolysis
  • Wastewater treatment


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