Struvite-based phosphorus recovery from the concentrated bioeffluent byn using HFO nanocomposite adsorption: Effect of solution chemistry

摘要

Here we reported struvite-based phosphorous recovery from the concentrated desorption effluent of a proprietary hydrated ferric oxide (HFO) nanocomposite (HFO-201) system, and the effect of solution chemistry (alkalinity, salinity, and dissolved organic matter (DOM)) on struvite formation was particularly focused on. The optimum P recovery rate (similar to 97%) and high quality struvite was obtained at 25 degrees C, pH 9.0-9.5, and the molar Mg:NH4:P ratio of 1.4:4:1. The reaction reached equili