Application of ultrasound and ozone for the removal of aqueous tannin

Younggyu Son, Junghyun Lim, Mingcan Cui, Myunghee Lim, Bo Youn Kweon, Jeehyeong Khim

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


In order to investigate the enhancement of combination of ultrasound process and ozonation for the removal of aqueous tannin, tannin concentration, chemical oxygen demand (COD), and total organic carbon (TOC) were analyzed in ultrasound process, ozonation, and ultrasound/ozone process. Even though ultrasound process was not effective for the removal of aqueous in terms of tannin concentration, COD, and TOC, ultrasound process could enhance the removal efficiency significantly when it was combined with ozonation. It was also revealed that COD removal resulted in partly mineralization due to insufficient oxidation power, which was induced by ultrasound and ozone. However average oxidation state of all organics in the solution was increased cogently and as a result, biodegradability could be increased meaningfully. Therefore ultrasound/ozone process could be effective pre-treatment process to biological process for the removal of aqueous tannin.

Original languageEnglish
Article number07GH05
JournalJapanese journal of applied physics
Issue number7 PART 2
Publication statusPublished - 2009 Jul

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy


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