Hydrothermal liquefaction process of Ammi visnaga and a new approach for recycling of the waste process water: cultivation of algae and fungi


DURAK H., Genel S., Demirer Durak E., ÖZÇİMEN D., Kocer A. T.

BIOMASS CONVERSION AND BIOREFINERY, 2022 (Peer-Reviewed Journal) identifier

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.1007/s13399-022-03221-6
  • Journal Name: BIOMASS CONVERSION AND BIOREFINERY
  • Journal Indexes: Science Citation Index Expanded, Scopus, Compendex, INSPEC
  • Keywords: Hydrothermal liquefaction, Bio-oil, Catalyst, Algae, Fungi, CHLORELLA-MINUTISSIMA, BIOMASS, CONVERSION, BIODIESEL, YIELD, FE

Abstract

In this study, biomass was tried to be liquefied by catalytic hydrothermal process. In addition, the effects of waste process water on growth of beneficial-pathogenic fungi and algae were investigated. Ammi visnaga as biomass source; Cu, W, and Fe metal powders as catalysts; Trichoderma harzianum, Trichoderma vixens, and Verticillium dahliae as fungus species; and Chlorella minutissima as algae were used. In trials, 250, 275, 300, and 325 degrees C temperatures and 0, 15, 30, and 45 min parameters were determined. GC-MS, TOC, XRD, and elemental analysis methods were used for characterization. The optimum temperatures for light bio-oil and heavy bio-oil were 300 degrees C and 325 degrees C, respectively. The highest HHV value was obtained as 30.30 Mj/kg in the presence of Fe catalyst. It was determined that waste process waters support beneficial fungus and algae growth and suppress pathogen growth.