Biodegradability enhancement of wastewater containing cefalexin by means of the electro-Fenton oxidation process

Adriana Ledezma Estrada, Gyokuyu Ri, Aimin Wang

研究成果: Article査読

91 被引用数 (Scopus)

抄録

The comparative degradation behavior of cefalexin (CLX) using advanced oxidation processes (AOPs) with the aim of improving CLX biodegradability was studied. Among the AOPs used, RuO 2/Ti anodic oxidation (AO), AO in the presence of electro-generated H 2O 2 (AO-H 2O 2), and the electro-Fenton (EF) process, the EF process was the most effective. In the EF process an activated carbon fiber (ACF) was used as a cathode. Different input variables, including catalyst concentration, pH, and current density were evaluated to find the optimum conditions for the EF. The most suitable operational conditions were as follows: a current density of 6.66mA/cm 2, a pH of 3, and a concentration of 1mM of Fe 2+ as the catalyst. Different CLX concentrations were analyzed as well of different reaction times to assess the degree of mineralization. The change in biodegradability was evaluated by the BOD 5/COD and the BOD 14/COD ratios. The EF did not effectively remove the COD, but removed enough to achieve suitable biodegradability for a further biological process.

本文言語English
ページ(範囲)41-48
ページ数8
ジャーナルJournal of Hazardous Materials
227-228
DOI
出版ステータスPublished - 2012 8 15

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

フィンガープリント 「Biodegradability enhancement of wastewater containing cefalexin by means of the electro-Fenton oxidation process」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル