Development of a Process for Recovering Phosphorus from Sewage Sludge

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  • 下水汚泥からのリン回収プロセスの開発
  • ゲスイ オデイ カラ ノ リン カイシュウ プロセス ノ カイハツ
  • Development of process for recovering phosphorus from sewage sludge

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Abstract

A novel process for effectively recovering phosphorus from waste has been developed. By this process, magnesium ammonium phosphate (hereinafter referred to as MAP) is recovered from anaerobic digestive sludge in sewage. The MAP recovery process involves recovering inorganic fine particles, which include the MAP particles, from digestive sludge through a successive line of separating devices such as, a vibrating screen, a hydro-cyclone, and a revolving-cylindrical type thin flow separator or multi-gravity separator. Continuous tests for MAP recovery carried out to study the performance of this process indicate that it was possible to recover about 90% of MAP.<br>

Journal

  • Resources Processing

    Resources Processing 52 (4), 172-182, 2005

    The Resources Processing Society of Japan

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