首页    期刊浏览 2024年11月06日 星期三
登录注册

文章基本信息

  • 标题:Nitrate and bromate removal by autotrophic and heterotrophic denitrification processes: batch experiments
  • 本地全文:下载
  • 作者:Sevgi Demirel ; Ibrahim Bayhan
  • 期刊名称:Journal of Environmental Health Science and Engineering
  • 印刷版ISSN:2052-336X
  • 出版年度:2013
  • 卷号:11
  • 期号:1
  • 页码:27
  • DOI:10.1186/2052-336X-11-27
  • 语种:English
  • 出版社:BioMed Central
  • 摘要:

    The effects of various parameters on bromate reduction were tested using lab-scale batch reactors with sulfur based autotrophic and methanol based heterotrophic denitrification processes. The initial bromate (BrO3) concentration of 100 and 500 μg/L was completely reduced and bromide (Br-) was produced stoichiometrically from bromate in all batch reactors. In all experiments, nitrate was completely reduced to below detection limit. Kinetic studies showed that the sulfur-based autotrophic nitrate reduction rate increased with increasing initial nitrate concentration. At stoichiometrically sufficient methanol concentration as an external carbon source, nitrate and bromate were reduced to below US EPA drinking water limits in heterotrophic denitrification conditions. The methanol was completely depleted at the end of the heterotrophic operation conditions.

  • 关键词:Nitrate; Bromate; Autotrophic denitrification; Heterotrophic denitrification; Batch reactor
国家哲学社会科学文献中心版权所有