Study on the technology for improving the recycled quality of used polystyrene foam

2015 Fiscal Year Final Research Report

• Project/Area Number: 25450371
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering/Agricultural information engineering
• Research Institution: Kochi University
• Principal Investigator: KAWANO TOSHIO 高知大学, 教育研究部自然科学系農学部門, 教授 (60224812)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 臭気低減

Outline of Final Research Achievements

For improving the quality of recycled expanded polystyrene foam, some methods of reducing the odor within it were introduced and the odor reduction effect was evaluated. In the first step, near-infrared spectroscopy was used for detecting fish odor polluted foam and some useful wave lengths were nominated by spectra analysis. In the second step, dilute solution of hydrochloric acid was sprayed on the odor-polluted polystyrene foam. As the results, most of the odors intensity was weaken into the level of one-tenth of original one. In last step, the extract from ‘Amanatsu’ fruit showed the best odor masking performance among extract samples from seven fruit used.

Free Research Field

食料生産プロセス学