Phosphorus Recovery as Potassium-Magnesium-Phosphate from Effluent of Piggery Wastewater using Zr(IV)-Loaded Saponified Orange Juice Residue

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概要

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• Zirconium was loaded onto orange waste, a cheap and available agricultural waste material, to investigate the feasibility of its utilization for phosphorus recovery from secondary effluent of piggery wastewater. Phosphorus removal using zirconium-loaded saponified orange juice residue (Zr-SOJR) gel increased with increasing solid/liquid ratio. Phosphate adsorption was found to be very efficient at pH 2-6. The secondary effluent was treated in a column packed with Zr-SOJR gel, which attained a dynamic adsorption capacity of 1.06 mol-P/kg. The phosphorus adsorbed on the column was successfully eluted as pre-concentrated phosphorus with a small amount of 0.2 M NaOH. Throughout the elution process, zirconium was not leaked from the adsorption gel. The solution obtained after elution had high concentrations of potassium and phosphorus, which was precipitated as potassium-magnesium-phosphate with the addition of magnesium.

著者

• Ohura Seiichirou

  Laboratory of Chemical and Environmental Engineering, Saga University

• Biswas Biplob

  Laboratory of Chemical and Environmental Engineering, Saga University

• Harada Hiroyuki

  Laboratory of Chemical and Environmental Engineering, Saga University

• Kondo Mitsunori

  Laboratory of Chemical and Environmental Engineering, Saga University

• Inoue Katsutoshi

  Laboratory of Chemical and Environmental Engineering, Saga University

• Ohto Keisuke

  Laboratory of Chemical and Environmental Engineering, Saga University

• Kawakita Hidetaka

  Laboratory of Chemical and Environmental Engineering, Saga University

関連論文

• Phosphorus Recovery as Potassium-Magnesium-Phosphate from Effluent of Piggery Wastewater using Zr(IV)-Loaded Saponified Orange Juice Residue
• Phosphorus Recovery as Potassium-Magnesium-Phosphate from Effluent of Piggery Wastewater Using Zr(IV)-Loaded Saponified Orange Juice Residue

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