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Hossein Dizaji
DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH, 04347 Leipzig, Germany

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Review
Published: 14 March 2019 in Applied Sciences
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Utilization of biomass either as a renewable energy source or for the generation of biogenic materials has received considerable interest during the past years. In the case of rice husk (RH) and rice straw (RS) with high silica contents in the fuel ash, these approaches can be combined to produce high-grade biogenic silica with purities >98 wt % from combustion residues. The overall process can be considered nearly neutral in terms of CO2 emission and global warming, but it can also address disposal challenges of rice husk and rice straw. For the resulting biogenic silica, several advanced application opportunities exist, e.g., as adsorbents, catalysts, drug delivery systems, etc. This article provides a comprehensive literature review on rice husk and rice straw combustion as well as applied strategies for raw material pre-treatment and/or post-treatment of resulting ashes to obtain high quality biogenic silica. Purity of up to 97.2 wt % SiO2 can be reached by combustion of untreated material. With appropriate fuel pre-treatment and ash post-treatment, biogenic silica with purity up to 99.7 wt % can be achieved. Studies were performed almost exclusively at a laboratory scale.

ACS Style

Hossein Beidaghy Dizaji; Thomas Zeng; Ingo Hartmann; Dirk Enke; Thomas Schliermann; Volker Lenz; Mehdi Bidabadi. Generation of High Quality Biogenic Silica by Combustion of Rice Husk and Rice Straw Combined with Pre- and Post-Treatment Strategies—A Review. Applied Sciences 2019, 9, 1083 .

AMA Style

Hossein Beidaghy Dizaji, Thomas Zeng, Ingo Hartmann, Dirk Enke, Thomas Schliermann, Volker Lenz, Mehdi Bidabadi. Generation of High Quality Biogenic Silica by Combustion of Rice Husk and Rice Straw Combined with Pre- and Post-Treatment Strategies—A Review. Applied Sciences. 2019; 9 (6):1083.

Chicago/Turabian Style

Hossein Beidaghy Dizaji; Thomas Zeng; Ingo Hartmann; Dirk Enke; Thomas Schliermann; Volker Lenz; Mehdi Bidabadi. 2019. "Generation of High Quality Biogenic Silica by Combustion of Rice Husk and Rice Straw Combined with Pre- and Post-Treatment Strategies—A Review." Applied Sciences 9, no. 6: 1083.