Fluidized–bed homogeneous granulation for potassium and phosphorus recovery: K-struvite release kinetics and economic analysis

Journal of the Taiwan Institute of Chemical Engineers(2022)

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摘要
•P and K recovery from actual swine wastewater was found to be feasible.•The maximum recoveries were 97.8% and 69.1% for P and K, respectively.•The recovered K-struvite pellets had low water content (5.5%) and high purity (71.8%).•FBHG recovery can yield a profit of 0.126USD/m3-swine wastewater.
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关键词
Swine wastewater treatment,K–struvite fertilizer,Green and sustainable development,Potassium and phosphorus recovery,Fluidized–bed homogeneous granulation
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