Use of rice husk in waste cooking oil pretreatment

Environmental Technology
Lara Talita SchneiderJoel Gustavo Teleken

Abstract

Since industrial wastes are increasing, the development of studies to find ways for their use is urgent. Waste cooking oil is an important source for the production of biodiesel, one of the main biofuels in Brazil. However, during cooking, the oil undergoes conditions that change its properties and decrease its quality, such as its acidity value. Current research treats waste cooking oil by the adsorption process using rice husk, an agro-industrial waste, and activated carbon to compare results. The potential of the adsorbents to remove free fatty acids in waste cooking oil has been investigated by the batch technique, evaluating different operating conditions of temperature, adsorbent mass and agitation. Adsorbents were characterized by nitrogen physisorption, scanning electron microscope, energy-dispersive spectroscopy and X-ray diffraction. The maximum result obtained for activated carbon at acidity reduction was 63%, using 22.4°C, 169.64 rpm and 3.39 g of adsorbent mass. Already, using the rice husk the percentage of removal was the same, 63% using 22.4°C, 80.36 rpm and 1.61 g of adsorbent, however in shorter times. The results prove that the application of the rice husk for this purpose is advantageous, for being a low-cos...Continue Reading

References

Apr 26, 2005·Journal of Colloid and Interface Science·V Vadivelan, K Vasanth Kumar
Aug 21, 2007·Bioresource Technology·Runping HanLina Zou
Feb 22, 2008·Journal of Environmental Management·Uma R LakshmiDilip H Lataye
Mar 19, 2013·Iranian Journal of Environmental Health Science & Engineering·Seyed Mahmoud MehdiniaHassan Taghipour
Jan 15, 2014·Journal of Environmental Management·Karla Aparecida Guimarães GusmãoLaurent Frédéric Gil
Mar 20, 2016·Talanta·Priscila Tessmer Scaglioni, Eliana Badiale-Furlong

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Methods Mentioned

BETA
scanning electron microscopy
X-ray

Software Mentioned

STATISTICA

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