Nanostructured ZnFeZr oxyhydroxide precipitate as efficient phosphate adsorber in waste water: understanding the role of different material-building-blocks

Michael Schneider,Carsten Meyer,Gerhard Sextl,Wojciech Szczerba,Karl Mandel,Carsten Gellermann,Asya Drenkova-Tuhtan,Heidrun Steinmetz

doi:10.1039/c6en00507a

Abstract

We present investigations on the working principle of a new adsorber for the recycling of phosphate from waste water.

Highlights

A promising approach to remove and recover P from waste water is the use of adsorber materials
The phosphate uptake by the novel ZnFeZr based adsorber material is investigated in detail through a screening procedure, leading to a better understanding of the role of the different components that make up this nanostructured material
A fraction of each sample was dried at 80 °C, analysed with X-ray diffraction (XRD) and scanning electron microscopy (SEM) and used for the determination of the BET surface area

Summary

Introduction

A promising approach to remove and recover P from waste water is the use of adsorber materials. Paper effective techniques for the removal of dissolved substances.[5] In the last decades, considerable work has been conducted in the area of synthesis and application of new adsorbers for phosphate. We succeeded in depositing the material on magnetic carrier particles.[25] Removal and recovery of the adsorber by the aid of magnetic particles via magnetic separation is an elegant approach, replacing classical techniques such as the time consuming and discontinuous filtration. The phosphate uptake by the novel ZnFeZr based adsorber material is investigated in detail through a screening procedure, leading to a better understanding of the role of the different components that make up this nanostructured material

Reagents and materials

Phosphate adsorption tests in phosphate spiked deionised water

Characterisation of the synthesised phosphate adsorbers

Adsorption behaviour of the synthesised materials towards phosphate

Conclusion