Use of a seeder reactor to manage crystal growth in the fluidized bed reactor for phosphorus recovery

Kazuaki Shimamura*, Hideyuki Ishikawa, Toshihiro Tanaka, Izumi Hirasawa

*この研究の対応する著者

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The authors have been engaged in the development of a phosphorus recovery system capable of maintaining high recovery efficiencies, with the chemical cost suppressed. This time, they conducted demonstration tests of a fluidized bed magnesium ammonium phosphate reactor provided with a seeder reactor for the supernatant from anaerobic digestion using a pilot experimental plant with a wastewater treatment capacity of 20 m3/d. For the digestion supernatant with a phosphorus concentration of approximately 300 mg/L, the treated water phosphorus concentration was 10 to 25 mg/L, and the phosphorus recovery efficiency was more than 90%. Relative to the chemical cost in the case of magnesium chloride, the chemical cost in the case of magnesium hydroxide is approximately 40%. Thus, with the new system, it was possible to reduce the running cost while maintaining high recovery efficiencies.

本文言語English
ページ(範囲)406-413
ページ数8
ジャーナルWater Environment Research
79
4
DOI
出版ステータスPublished - 2007 4

ASJC Scopus subject areas

  • 環境化学
  • 生態モデリング
  • 水の科学と技術
  • 廃棄物管理と処理
  • 汚染

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