Kinetics of biological treatment of phenolic wastewater in three-phase fluidized bed containing biofilm and suspended sludge

A. Hirata, M. Noguchi, N. Takeuchi, S. Tsuneda

研究成果: Conference article査読

25 被引用数 (Scopus)

抄録

Phenolic wastewater was treated in complete mixing type three-phase fluidized bed which contained both biofilm and suspended sludge. By considering the contributions of biofilm and suspended sludge to biodegradation of phenol separately, phenol removal rates with biofilm and with suspended sludge were evaluated both theoretically and experimentally. As a result, biodegradation of phenolic wastewater by biofilm process could be treated as a zero-order reaction. The volumetric biological removal rates with biofilm was proportional to the specific surface area of the biofilm with biodegradation coefficients (K) of 1.25 x 10-2 kg-PhOH/m2-biofilm/d. At a lower suspended sludge concentration, bioparticle diameter and bioparticle hold-up in the three-phase fluidized bed reactor were decisive factors for the efficiency of phenol treatment, and it was also proved that almost 100% of phenol removal could be attained at a larger specific biofilm surface area per volumetric phenol loading rate than 80 m2/(kg-PhOH/d) without suspended sludge.

本文言語English
ページ(範囲)205-212
ページ数8
ジャーナルWater Science and Technology
38
8-9 -9 pt 7
DOI
出版ステータスPublished - 1998 1 1
イベントProceedings of the 1998 19th Biennial Conference of the International Association on Water Quality. Part 1 (of 9) - Vancouver, Can
継続期間: 1998 6 211998 6 26

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

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