Recovering Valuable Phosphates: Chemical Biotechnology as a Problem Solver for the Environment.
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.
science + technology journalist.
Elsbeth
E
Heinzelmann
D001674:Bioelectric Energy Sources / Q000191:economics; D004777:Environment; D005308:Fertilizers / Q000191:economics / Q000600:supply & distribution*; D055772:Green Chemistry Technology / Q000191:economics / Q000295:instrumentation*; D006801:Humans; D019216:Metals, Heavy / Q000032:analysis; D010710:Phosphates / Q000302:isolation & purification*; D012722:Sewage / Q000737:chemistry*
D005308:Fertilizers; D019216:Metals, Heavy; D010710:Phosphates; D012722:Sewage