River Basin Research Center, Gifu University, Gifu City, Japan.
Bioresour Technol. 2013 Jun;137:368-75. doi: 10.1016/j.biortech.2013.03.067. Epub 2013 Mar 16.
The effects of ammonium (NH4) and magnesium (Mg) on the precipitation of phosphorus in artificial wastewater by an air-cathode single-chamber microbial fuel cell were investigated. When both NH4 and Mg were added to the wastewater, phosphorus was precipitated as struvite. Almost no precipitation occurred with the addition of only NH4, while phosphorus was precipitated as cattiite with the addition of only Mg. However, the amount of precipitate was less than that observed in experiments in which NH4 was also added. As the amounts of NH4 and Mg were increased, more precipitate was observed. Precipitated phosphorus on the cathode was recovered by dissolution in Milli-Q water and MES buffers. It was discovered that the formation of a precipitate reduced the performance of the cathode. Dissolution treatment caused the performance of the cathodes to increase to their initial level.
研究了氨（NH4）和镁（Mg）对空气阴极单室微生物燃料电池中人工废水中磷沉淀的影响。当废水中同时添加 NH4 和 Mg 时，磷以鸟粪石的形式沉淀。仅添加 NH4 时几乎没有沉淀发生，而仅添加 Mg 时磷则以碳磷灰石的形式沉淀。然而，沉淀的量比同时添加 NH4 时观察到的要少。随着 NH4 和 Mg 用量的增加，观察到更多的沉淀。用 Milli-Q 水和 MES 缓冲液溶解阴极上的沉淀磷进行回收。发现沉淀的形成降低了阴极的性能。溶解处理使阴极的性能恢复到初始水平。
