Resource Recovery from Excess Sludge by Subcritical Water Process with Magnesium Ammonium Phosphate Process

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概要

• 論文の詳細を見る

• The amount of excess sludge produced in municipal wastewater treatment plants in Japan is increasing every year as the urban population increases. Phosphorus in excess sludge could be a potential phosphorus resource since at present, phosphate rock is being exhausted all over the world. Every year, Japan imports large quantities of phosphorus from abroad but much are discharged as excess sludge. Therefore, solubilization process, one method of recovering phosphorus from sludge, could be a promising solution. In this study, subcritical water process, a new technology that solubilizes sludge under subcritical condition, was applied before the phosphorus in sludge was recovered with magnesium ammonium phosphate (MAP) process. As a result, the solubilization rate of excess sludge achieved approximately 80% and about 94-97% of the phosphorus could be recovered.

• Japan Society on Water Environmentの論文

著者

• Arakane Mitsuhiro

  Dept. of Civil and Environmental Engineering, Yamaguchi University

• Ukita Masao

  Dept. of Civil and Environmental Engineering, Yamaguchi University

• UKITA Masao

  Dept. of Civil and Environmental Eng., Yamaguchi University

• IMAI Tsuyoshi

  Dept. of Civil and Environmental Eng., Yamaguchi University

• SEKINE Masahiko

  Dept. of Civil and Environmental Eng., Yamaguchi University

• HIGUCHI Takaya

  Dept. of Civil and Environmental Eng., Yamaguchi University

• Murakami Sadaaki

  Dept. of Chemical and Biological Engineering, Ube National College of Technology

• Takeuchi Masami

  Dept. of Chemical and Biological Engineering, Ube National College of Technology

• Higuchi Takaya

  Dept. of Civil and Environmental Engineering, Yamaguchi University

関連論文

• NOVEL RESTORATION TECHNOLOGY FOR PUZRIFICATIONOF WATER QUALITY IN CLOSED WATER BODYBY HIGH CONCENTRATED OXYGEN WATER
• Resource Recovery from Excess Sludge by Subcritical Water Process with Magnesium Ammonium Phosphate Process

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