Evidence for PAH Removal Coupled to the First Steps of Anaerobic Digestion in Sewage Sludge

<table>Methane production over time in un-spiked and spiked HLSS reactors. (•) nonspiked HLSS, <svg height="19.1625" id="M17" style="vertical-align:-5.56926pt" version="1.1" viewbox="0 0 31.025 19.1625" width="31.025" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>  0.12 day<sup>−1</sup>. (∘) spiked HLSS, <svg height="19.1625" id="M18" style="vertical-align:-5.56926pt" version="1.1" viewbox="0 0 31.025 19.1625" width="31.025" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>  <svg height="11.4" id="M19" style="vertical-align:-0.3003pt" version="1.1" viewbox="0 0 90.6875 11.4" width="90.6875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> day<sup>−1</sup>.</table>

International Journal of Chemical Engineering

fig1

Figure 1

Figure 1: Evidence for PAH Removal Coupled to the First Steps of Anaerobic Digestion in Sewage Sludge 