Pilot-scale removal and recovery of dissolved phosphate from secondary wastewater effluents with reusable ZnFeZr adsorbent @ Fe₃O₄/SiO₂ particles with magnetic harvesting

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• 作者：Asya Drenkova-Tuhtan^a ; ^{asya.drenkova@iswa.uni-stuttgart.de} ; Michael Schneider^b ; ^c ; Matthias Franzreb^d ; Carsten Meyer^a ; Carsten Gellermann^b ; Gerhard Sextl^b ; ^c ; Karl Mandel^b ; ^c ; Heidrun Steinmetz^e
• 关键词：Magnetic separation ; Microparticles ; Phosphate elimination ; Sorption ; Struvite recovery ; Wastewater effluent
• 刊名：Water Research
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：109
• 期：Complete
• 页码：77-87
• 全文大小：2357 K
• 卷排序：109

文摘

Tailored ZnFeZr-coated magnetic particles sorb reversibly phosphate in wastewater. Effluent concentrations <0.05 mg/L PO4P were achieved in the treated wastewater. Particles were regenerated in NaOH eluent and reused in numerous lab-scale cycles. Pilot test with 1.5 m3 wastewater verified proof-of-concept showing high efficiency. Phosphate enriched reclaimed eluate was used for successful struvite recovery.