陈东, 李焕文, 林颖, 吴静仪. 含磷解吸液结晶法制备鸟粪石的研究[J]. 华南师范大学学报（自然科学版）, 2015, 47(2): 72-77. doi: 10.6054/j.jscnun.2014.12.022
引用本文: 陈东, 李焕文, 林颖, 吴静仪. 含磷解吸液结晶法制备鸟粪石的研究[J]. 华南师范大学学报（自然科学版）, 2015, 47(2): 72-77. doi: 10.6054/j.jscnun.2014.12.022
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Chen Dong, Li Huanwen, Lin Ying, Wu Jingyi. Synthesis of Struvite by Crystallization of Desorbed Solution Containing Phosphorus[J]. Journal of South China Normal University (Natural Science Edition), 2015, 47(2): 72-77. doi: 10.6054/j.jscnun.2014.12.022
Citation: Chen Dong, Li Huanwen, Lin Ying, Wu Jingyi. Synthesis of Struvite by Crystallization of Desorbed Solution Containing Phosphorus[J]. Journal of South China Normal University (Natural Science Edition), 2015, 47(2): 72-77. doi: 10.6054/j.jscnun.2014.12.022
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含磷解吸液结晶法制备鸟粪石的研究

Synthesis of Struvite by Crystallization of Desorbed Solution Containing Phosphorus

    摘要
  • 摘要: 鸟粪石是一种高效的氮磷缓释复合材料.以模拟富磷溶液为反应物，探索了结晶法制备鸟粪石的主要控制条件.当3种构晶离子摩尔比为［Mg^2+］:［NH^+_4］∶［PO^3-_4］=1.2∶3.0∶1.0，pH为8.0时，用含磷质量浓度为699 mg/L的实际含磷解吸液制备鸟粪石，获得的产品纯度为83.36%.化学组成、扫描电镜和红外光谱分析结果表明，合成鸟粪石与天然鸟粪石元素组成与形貌结构相似，出现典型的PO^3-_4和NH^+_4的特征峰.对其肥效的考察结果显示，在施加合成鸟粪石的量为25~300 mg/k

     

    Abstract: The main control conditions in struvite synthesis were investigated by crystallization using simulated solution containing rich phosphorus as a reactant. The product purity of struvite can reach 8336% using desorbed solution containing 699 mg/L phosphate

     

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