Recovering Valuable Phosphates: Chemical Biotechnology as a Problem Solver for the Environment

biotechnet Switzerland

Authors

  • Elsbeth Heinzelmann science + technology journalist

DOI:

https://doi.org/10.2533/chimia.2015.296

Keywords:

Microbial fuel cell, Phosphate recovery, Phosphate remobilization, Sewage sludge, Struvite fertilizer

Abstract

Researchers from the HES-SO Valais/Wallis have demonstrated how to extract phosphate from sewage sludge on the laboratory scale using renewable energy sources from a microbial fuel cell. The mobilized phosphate barely contains heavy metals and can be used to produce fertilizer of marketable quality. The necessary energy comes from a sewage treatment plant and causes no additional costs.

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Published

2015-05-27