食品工場排水処理施設における活性汚泥の細菌群集構造と汚泥沈降性との関連性

書誌事項

タイトル別名
  • Relationship Between Bacterial Community and Sludge Settleability in an Activated Sludge Process for Food Industry
  • ショクヒン コウジョウ ハイスイ ショリ シセツ ニ オケル カッセイ オデイ ノ サイキン グンシュウ コウゾウ ト オデイ チンコウセイ トノ カンレンセイ

この論文をさがす

抄録

The bacterial community in a full-scale activated sludge plant for the food industry was investigated for about a year using terminal-restriction fragment length polymorphism (T-RFLP) analysis. The microscopic observation and 16S rDNA-based analysis indicated that the filamentous bacteria that were most frequently observed in this plant were Caldilinea-like bacteria, and that the actynomycetes bacteria that were dominant in the scum were Dermatophilus-like bacteria. The Tetrasphaera sp. of actynomycetes was also detected in the airation tank. According to the T-RFLP analysis, Caldilinea-like bacteria tended to appear frequently when diluted sludge volume index (DSVI) deteriorated unstably and easily. This suggests that these filamentous bacteria had a negative influence on sludge settleability, however, no correlation between the intensity of the T-RF and DSVI was observed. The influence of actinomycetes, on the other hand, was not clear, because these bacteria were detected even when DSVI was low and stable, although they increased when DSVI increased. Therefore, other factors also would have influences on sludge settleability in this plant. We also applied multidimensional scaling analysis on the bases of T-RFs to evaluate the whole bacterial community. The plots obtained were roughly divided into two groups, showing that the community structure changed depending on the sludge settling character.

収録刊行物

  • 水環境学会誌

    水環境学会誌 30 (7), 377-385, 2007

    公益社団法人 日本水環境学会

参考文献 (27)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ