Ozonation of polyoxymethylene effluent in a rotating packed bed. Issue 7 (21st March 2019)

• Record Type: Journal Article
• Authors: Wang, Dan; Wang, Wei; Liu, Taoran; Shan, Mingjun; Li, Guangjun; Arowo, Moses; Shao, Lei
• Is Part Of: Environmental technology. Volume 40:Issue 7(2019)
• Page Start: 807
• Page End: 812
• Publication Date: 2019-03-21
• Subjects: Polyoxymethylene effluent -- rotating packed bed -- ozonation -- chemical oxygen demand -- biological oxygen demand; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2017.1408690
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: This work aimed to investigate the effectiveness of ozone in degradation of polyoxymethylene (POM) effluent in a rotating packed bed (RPB) (O3 -RPB system). The degradation efficiency was evaluated in terms of chemical oxygen demand (COD), 5-day biological oxygen demand (BOD5 ) and BOD5 /COD under various operating conditions. Pilot experiments comprising the O3 -RPB unit coupled with a biological contact oxidation unit were also carried out. The COD removal rates in the pilot process increased markedly to about 70–85% compared to about 40% in the original treatment process, which is the tertiary aerobic treatment in the plant, confirming that the O3 -RPB system is very efficient in improving the biodegradability of the POM effluent.