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Low-temperature catalyst based Hydrothermal liquefaction of harmful Macroalgal blooms, and aqueous phase nutrient recycling by microalgae
- Source :
- Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019), Scientific Reports
- Publication Year :
- 2019
- Publisher :
- Nature Publishing Group, 2019.
-
Abstract
- The present study investigates the hydrothermal liquefaction (HTL) of harmful green macroalgal blooms at a temperature of 270 °C with, and without a catalyst with a holding time of 45 min. The effect of different catalysts on the HTL product yield was also studied. Two separation methods were used for recovering the biocrude oil yield from the solid phase. On comparision with other catalyst, Na2CO3 was found to produce higher yiled of bio-oil. The total bio-oil yield was 20.10% with Na2CO3, 18.74% with TiO2, 17.37% with CaO, and 14.6% without a catalyst. The aqueous phase was analyzed for TOC, COD, TN, and TP to determine the nutrient enrichment of water phase for microalgae cultivation. Growth of four microalgae strains viz., Chlorella Minutissima, Chlorella sorokiniana UUIND6, Chlorella singularis UUIND5 and Scenedesmus abundans in the aqueous phase were studied, and compared with a standard growth medium. The results indicate that harmful macroalgal blooms are a suitable feedstock for HTL, and its aqueous phase offers a promising nutrient source for microalgae.
- Subjects :
- 0301 basic medicine
Hot Temperature
Chlorella singularis
Harmful Algal Bloom
Carbonates
lcsh:Medicine
Raw material
Catalysis
Article
03 medical and health sciences
Industrial Microbiology
0302 clinical medicine
Nutrient
Bioenergy
Microalgae
Biomass
lcsh:Science
Chlorella sorokiniana
Multidisciplinary
Chemistry
lcsh:R
Aqueous two-phase system
Nutrients
Hydrothermal liquefaction
030104 developmental biology
Biofuel
Environmental chemistry
Biofuels
lcsh:Q
Water Microbiology
030217 neurology & neurosurgery
Chemical modification
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 9
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....57fc65fa646d1b729a50fb31e4b9bbc5