A review on sonoelectrochemical technology as an upcoming alternative for pollutant degradation

Binota Thokchom, Aniruddha B. Pandit, Pengpeng Qiu, Beomguk Park, Jongbok Choi, Jeehyeong Khim

Research output: Contribution to journalReview articlepeer-review

73 Citations (Scopus)


Sonoelectrochemical process has emerged as a novel integrated technology for various applications starting from sonoelectroplating till the remediation of a wide range of contaminants. Although a promising new technology, the application of sonoelectrochemical technology for pollutant degradation are mostly on a laboratory scale, utilizing the conventional reactor configuration of the electrolytic vessel and ultrasonic horns dipped in it. This type of configuration has been believed to be responsible for its sluggish evolution with lower reproducibility, scale-up and design aspects. To achieve a major turn with an enhanced synergy, refinements in the form of optimizing the co-ordination of the governing parameters of both the technologies (e.g., power, frequency, liquid height, electrode material, electrode size, electrode gap, applied voltage, current density etc.) have been validated. Besides, in order to supplement knowledge in the already existing pool, rigorous research on the past and present status has been done. Challenges were also identified and to overcome them, critical discussions covering an overview of the progressive developments on combining the two technologies and its major applications on pollutant degradation were conducted.

Original languageEnglish
Pages (from-to)210-234
Number of pages25
JournalUltrasonics Sonochemistry
Publication statusPublished - 2015 May 30

Bibliographical note

Funding Information:
This work was supported by the Basic Science Research Program through a National Research Foundation of Korea ( NRF ) grant funded by the Ministry of Education, Science and Technology (KRF-2009-0092799) and research scholarship provided by National Institute for International Education (NIIED), Ministry of Education, South Korea.

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.


  • Pollutant degradation
  • Reactor configuration
  • Sonoelectrochemical technology
  • Synergy
  • System parameters

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Chemistry
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics
  • Organic Chemistry
  • Inorganic Chemistry


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