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    • 4. 发明申请
    • METHOD FOR RECOVERY OF PHOSPHATE FROM A LIQUID PHASE
    • 从液相中回收磷酸盐的方法
    • US20150299874A1
    • 2015-10-22
    • US14686924
    • 2015-04-15
    • AVA-CO2 SCHWEIZ AG
    • Jan VYSKOCILStepan KUSCHEFrançois BADOUX
    • C25B1/18
    • C25B1/18C02F1/46114C02F2001/46133C02F2101/105
    • Known phosphorus recovery methods from liquid phases proceed from the presence of ammonia or nitrate, and phosphate, in the liquid phase. Wastewater that is supposed to be freed of nitrate and phosphate pollution in sewage treatment facilities can be used as the liquid phase. In electrochemical methods, a magnesium electrode is used as a sacrificial anode, and ammonium and phosphate together are bound to the magnesium to form struvite, which in turn can be used in agriculture as a fertilizer, in useful manner. In an alternative method of procedure, first, only phosphates are removed from a liquid phase that occurs from the filtration of products of hydrothermal carbonization. A magnesium electrode is used as the cathode, so that the resulting magnesium phosphate does not go into solution and first must be precipitated, but rather is removed from the electrolysis cell directly with the cathode, after the reaction occurs.
    • 来自液相的已知磷回收方法在液相中从氨或硝酸盐和磷酸盐的存在进行。 污水处理设施中应避免硝酸盐和磷酸盐污染的废水可用作液相。 在电化学方法中,使用镁电极作为牺牲阳极,铵和磷酸盐一起结合镁形成鸟粪石,这又可用于农业作为肥料,以有用的方式。 在另一种方法中,首先,从水热碳化产物的过滤产生的液相中仅除去磷酸盐。 使用镁电极作为阴极,使得得到的磷酸镁不进入溶液中,并且首先必须沉淀,而是在反应发生后直接从阴极除去电解池。