Ozone combined with ceramic membranes for water treatment: Impact on HO center dot radical formation and mitigation of bromate
Khaled Ibn Abdul Hamid, Peter J Scales, Sebastien Allard, Jean-Philippe Croue, Shobha Muthukumaran, Mikel Duke
Journal of Environmental Management | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | Published : 2020
The beneficial effect of combining ozone with ceramic membrane filtration (CMF) to enhance membrane flux performances during water treatment (e.g., wastewater and drinking water) could be related to the formation of hydroxyl (HO) radicals from the interaction of ozone with ceramic membrane. To explore this effect, para-chlorobenzoic acid was used to probe HO radical activity during a combined ozone/CMF process using a 0.1 μm pore size membrane supplied by Metawater, Japan. Tests were then extended to explore the impact on bromate formation downstream CMF, a well-known undesirable by-product from ozone use in water treatment. Ozone reduction by the membrane and its module appeared to be more ..View full abstract
The authors are grateful to the Collaborative Research Network (CRN), Australia and National Centre of Excellence in Desalination, Australia (NCEDA) for providing financial support of this project. The membrane was generously supplied by Metawater, Japan. The experiments were conducted in the Curtin Water Quality Research Centre (CWQRC) at Curtin University. The authors are thankful for all these contributions.