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Ozone: Science & Engineering
The Journal of the International Ozone Association
Volume 35, 2013 - Issue 1
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Original Articles

Effect of Ozone on Removal of Dissolved Organic Matter and its Biodegradability and Adsorbability in Biotreated Textile Effluents

Fei-yue Qian School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
,
Xian-bo Sun School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
&
Yong-di Liu School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, ChinaCorrespondence[email protected]
Pages 7-15 | Received 09 Sep 2011, Accepted 15 May 2012, Published online: 23 Jan 2013
 
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Abstract

A study was conducted on the efficacy of ozonation in removing dissolved organic matter (DOM) in biotreated textile effluents and effects on its biodegradability and adsorbability. Results showed the efficient removal of color and fluorescence compounds were achieved through ozonation, due to increasing hydrophilicity and lowering molecular weight of DOM. A significant biodegradability improvement was also observed, and DOM adsorbability on activated carbon was highly dependent on ozone dosage. As the key parameter, consumed 3.8 g O3/ g TOC0 was the optimal dosage in the hybrid process combining ozonation with biological activated carbon (BAC) for wastewater reclamation.

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