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Material-Efficient Utilization of Waste Oils—Biodegradability and Other Chemical Properties of Vegetable Recycling Oils

Abstract Full-Text HTML Download Download as PDF (Size:865KB) PP. 133-140
DOI: 10.4236/gsc.2012.24019    4,609 Downloads   8,416 Views   Citations
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Hanna Prokkola, Toivo Kuokkanen, Ulla Lassi

Affiliation(s)

Department of Chemistry, University of Oulu, Oulu, Finland.

ABSTRACT

Material efficiency is nowadays an essential topic to promote the sustainable use of natural resources, waste materials and industrial by-products, in agreement with the principle of sustainable development and LCA (life cycle assessment). In this research it was determined the biodegradation of used vegetable oil based products and their important physico- chemical properties for their suitability in different applications such as chain oil in the forestry equipment and mold oil in concrete casting etc. Biodegradability is a measure of the ecological nature of products, and thus from an environ- mental point of view, is the most important evaluated property in this research. As a result, all measured properties of the studied recycled vegetable oils show that the products are environmentally friendly. Two types of vegetable oil were studied; three chain oils and two mold oils. The degree of biodegradation (BOD28) of the mold oils, was about 77 % and the biodegradation of chain oils was about 60% - 62%. In addition, this paper also presents a process outline for manu- facturing recycling vegetable oils.

KEYWORDS

Biodegradation; BOD; Manometric Respirometric Method; Waste Oil; Recycling; Vegetable Oil; Material Efficiency

Cite this paper

H. Prokkola, T. Kuokkanen and U. Lassi, "Material-Efficient Utilization of Waste Oils—Biodegradability and Other Chemical Properties of Vegetable Recycling Oils," Green and Sustainable Chemistry, Vol. 2 No. 4, 2012, pp. 133-140. doi: 10.4236/gsc.2012.24019.

Conflicts of Interest

The authors declare no conflicts of interest.

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