Effect of Nitrogen Load and Water Temperature on Treatment Efficiency of Anoxic Reactor Using Submerged Bed Process.

• YOSHINO TSUNEO

  School of Hygienic Sciences, Kitasato University

• IYO TOHRU

  School of Hygienic Sciences, Kitasato University

• OHNO SHIGERU

  School of Hygienic Sciences, Kitasato University

Bibliographic Information

Other Title

• 固定床方式の脱窒槽の処理効率に及ぼす窒素負荷量および水温の影響〔英文〕
• コテイショウ ホウシキ ノ ダッチツソウ ノ ショリ コウリツ ニ オヨボス

Abstract

The effects of nitrogen load and water temperature on the treatment efficiency were studied using an anoxic rector equipped with a lace-like contact media. Experiments were conducted under various nitratenitrogen (NO₃-N) loads and water temperatures. Temperature coefficients (θ) of 1.046-1.064 were calculated. An equation expressing the relationship between NOx-N removal efficiency, the NOx-N load and water temperature was obtained. From the equation, the NOx-N load that allows a high NOx-N removal efficiency in the anoxic reactor can be estimated, and the value was greatly effected by water temperature. Denitrification rates of 2.4-4.5 mg-N/g-SS·hr under water temperature of 30°C were obtained.

Journal

• Japanese Journal of Water Treatment Biology

  Japanese Journal of Water Treatment Biology 31 (1), 25-31, 1995

  Japanese Society of Water Treatment Biology

Keywords

• denitrification
• submerged bed process
• nitrogen load
• water temperature

Details

• CRID: 1390282679938585728
• NII Article ID: 10002798147
• NII Article ID: 130003700309
• NII Book ID: AN00351126
• DOI: 10.2521/jswtb.31.25
• ISSN: 18810438
• ISSN: 09106758
• NDL BIB ID: 3635679
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3635679
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed