Author(s): Hirota R, Kuroda A, Kato J, Ohtake H
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Abstract Enhanced biological phosphorus removal (EBPR) has become a well-established process and is currently applied in many full-scale wastewater treatment processes. Phosphorus recovered from EBPR waste sludge can be used as a raw material for the fertilizer industry, if a sound recycling strategy is developed and applied. In this review, we summarize our current knowledge on phosphate metabolism in bacteria, focusing on molecular mechanisms of bacterial polyphosphate (polyP) accumulation. A simple method for releasing polyP from EBPR waste sludge and recovering phosphorus in a reusable form for the fertilizer industry is presented. We also describe a recent development of bioprocesses for the expanded use of polyP in the production of value-added chemicals. (c) 2009 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.
This article was published in J Biosci Bioeng
and referenced in Biochemistry & Physiology: Open Access