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Free fatty acids degradation in grease trap purification using ozone bubbling and sonication *

Published online by Cambridge University Press:  15 February 2013

Michal Piotr Kwiatkowski ,
Saburoh Satoh ,
Shogo Fukuda ,
Chobei Yamabe ,
Satoshi Ihara  and
Masanori Nieda
Michal Piotr Kwiatkowski
Affiliation:
Graduate School of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
Saburoh Satoh
Affiliation:
Agency of Liaison and Innovation in Saga, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
Shogo Fukuda
Affiliation:
Graduate School of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
Chobei Yamabe*
Affiliation:
Graduate School of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan Ohnit Co. Ltd, 3-3-765 Sakuragaoka-Higashi, Akaiwa-shi, Okayama 709-0721, Japan
Satoshi Ihara
Affiliation:
Graduate School of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
Masanori Nieda
Affiliation:
Ohnit Co. Ltd, 3-3-765 Sakuragaoka-Higashi, Akaiwa-shi, Okayama 709-0721, Japan
*
ae-mail: yamabec@cc.saga-u.ac.jp
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Abstract

The oil and fat were treated at first by only ozone bubbling and it was confirmed that the collection efficiency of them became 98.4% when the aeration was used. It showed that the aeration method in a grease trap cleared the standard value of 90% and there was no worry on the oil and fat outflow from a grease trap. The characteristics of sonication process were studied for free fatty acids degradation. The free saturated fatty acids are the most hard-degradable compounds of the fats, oils and greases (FOGs) in the grease trap. The influence of various parameters such as immersion level of an ultrasound probe in the liquid and bubbling of various gases (Ar, O2, air, O3) on the sonochemical and energy efficiency of the sonication process was investigated. The most effective degradation treatment method for saturated free fatty acids was the combination of sonication and low flow rate argon bubbling.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 61 , Issue 2: Topical issue: 13th International Symposium on High Pressure Low Temperature Plasma Chemistry (Hakone XIII). Edited by Nicolas Gherardi, Henryca Danuta Stryczewska and Yvan Ségui , February 2013 , 24315
Copyright
© EDP Sciences, 2013

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Footnotes

*

Contribution to the Topical Issue “13th International Symposium on High Pressure Low Temperature Plasma Chemistry (Hakone XIII)”, Edited by Nicolas Gherardi, Henryca Danuta Stryczewska and Yvan Ségui.

References

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