Please use this identifier to cite or link to this item:
|Title:||Evaluation of pretreatments for inhibiting bromate formation during ozonation||Authors:||Andersen, Henrik R.
Antoniou, Maria G.
|Keywords:||Bromate;Chlorine;Ozone;Carbamazepine;Ammonia||Issue Date:||2012||Publisher:||Taylor & Francis||Source:||Environmental Technology, 2012, Volume 33, Issue 15, Pages 1747-1753||Abstract:||This study compared several pretreatment methods for inhibiting BrO−3 formation during ozonation of tap water, fromtheDTU (Technical University of Denmark) campus, including H2O2 addition (peroxone), pH depression, and NH+4 and Cl2/NH+4 addition. At the same time, the inhibition of atrazine and carbamazepine removal was evaluated for each pretreatment. The required delivered O3 dose to achieve 90% removal of atrazine in the tap water from the DTU campus was 3.5 mg/L, which produced 130–170μg/L BrO−3 . Peroxone did not reduce the required O3 dose for contaminant removal; however, it limited BrO−3 formation to below the drinking water limit of 10μg/L. Depression of solution pH to 6.0, reduced BrO−3 formation to half, but it was still well above the water limit. Pretreatment with NH+4 also reduced BrO−3 formation by approximately 50%, though it reduced atrazine degradation to 65%. Pretreatment with Cl2/NH+4 reduced BrO−3 formation close to the 10μg/L limit; however, atrazine removal did not exceed 75%. Carbamazepine was completely removed under all the tested experimental conditions with the 3.5 mg/L O3 dose.||URI:||http://ktisis.cut.ac.cy/handle/10488/6588||ISSN:||0959-3330 (print)
|DOI:||10.1080/09593330.2011.644586||Rights:||© 2012 Taylor & Francis||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
Show full item record
checked on Dec 10, 2018
WEB OF SCIENCETM
checked on Dec 16, 2018
checked on Dec 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.