Skip to main content

Influence of Halide Ions on the Oxidation of Aqueous Ammonia under UV Irradiation

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial

Abstract:

The influence of UV irradiation on the oxidation of ammonia (NH3) in the presence of individual halide ions (bromide (Br-), chloride (Cl-) and iodide (I-)) was investigated and revealed that the ions have the potential to accelerate ammonia photo-oxidation. The process was found to be dependent on solution pH, the type of halide ion and the concentrations of halide ion and aqueous ammonia. Protons are released during the reaction while the halide ion concentrations remain unchanged. Nitrite (NO2 -) and nitrate (NO3 -) are produced as final stable nitrogen species, with the yield being dependent on the initial pH of the irradiated solution. NH3 oxidation occurred with Br- and Cl- at all pH levels, but in the presence of I- it proceeded only at basic pH. Sulfur hexafluoride (SF6) was used as an electron (e -) scavenger to demonstrate that ammonia oxidation generates e- in solutions containing halide ions. The process was confirmed with the formation of fluoride (F-) and sulfate (SO4 2-) ions.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864705783978104

Publication date: January 1, 2005

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites
wef/wefproc/2005/00002005/00000001/art00067
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more