Removal of recalcitrant organic substances in livestock wastewater using ozonation and an electrochemical process

Yeojoon Yoon, Moonki Park, Minhwan Kwon, Youmi Jung, Tae Mun Hwang, Joon Wun Kang

Research output: Contribution to journalArticle

Abstract

This study examined the effectiveness of an ozone (O3) system from an existing livestock wastewater treatment plant installed with a dissolved O3 flotation unit and suggested a method for future improvement in terms of an effective removal of recalcitrant organic substances. An optimum O3 dose was proposed by selecting an O3 dose yielding a maximum value of biochemical oxygen demand/chemical oxygen demand (BOD5/CODMn). The peroxone (O3/H2O2) process was found to be no different of efficiency from the O3 alone process due to the high alkaline content of the wastewater in which all hydroxyl radicals (OH) are scavenged. In this study, an electrochemical process was found to be promising in decreasing the recalcitrant organic substances and the removal efficiency of them was not affected by the timing of ozonation, i.e., as a final step.

Original languageEnglish
Pages (from-to)399-407
Number of pages9
JournalDesalination and Water Treatment
Volume135
DOIs
Publication statusPublished - 2018 Dec

Fingerprint

Ozonization
Agriculture
livestock
Wastewater
wastewater
Biochemical oxygen demand
Chemical oxygen demand
biochemical oxygen demand
hydroxyl radical
Flotation
Wastewater treatment
chemical oxygen demand
Ozone
ozone
organic substance
dose
ozonation
removal
flotation
wastewater treatment plant

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

Cite this

Yoon, Yeojoon ; Park, Moonki ; Kwon, Minhwan ; Jung, Youmi ; Hwang, Tae Mun ; Kang, Joon Wun. / Removal of recalcitrant organic substances in livestock wastewater using ozonation and an electrochemical process. In: Desalination and Water Treatment. 2018 ; Vol. 135. pp. 399-407.
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Removal of recalcitrant organic substances in livestock wastewater using ozonation and an electrochemical process. / Yoon, Yeojoon; Park, Moonki; Kwon, Minhwan; Jung, Youmi; Hwang, Tae Mun; Kang, Joon Wun.

In: Desalination and Water Treatment, Vol. 135, 12.2018, p. 399-407.

Research output: Contribution to journalArticle

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AU - Kwon, Minhwan

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AU - Hwang, Tae Mun

AU - Kang, Joon Wun

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AB - This study examined the effectiveness of an ozone (O3) system from an existing livestock wastewater treatment plant installed with a dissolved O3 flotation unit and suggested a method for future improvement in terms of an effective removal of recalcitrant organic substances. An optimum O3 dose was proposed by selecting an O3 dose yielding a maximum value of biochemical oxygen demand/chemical oxygen demand (BOD5/CODMn). The peroxone (O3/H2O2) process was found to be no different of efficiency from the O3 alone process due to the high alkaline content of the wastewater in which all hydroxyl radicals (OH•) are scavenged. In this study, an electrochemical process was found to be promising in decreasing the recalcitrant organic substances and the removal efficiency of them was not affected by the timing of ozonation, i.e., as a final step.

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