Adjustment of sludge pH 3 generates OH<sup>s/rad" src="/sd/grey_pxl.gif" class="glyphImg imgLazyJSB">
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Combined degradation process FS is more efficient than individual treatments.
Release of CTC and utilization of sludge iron are showing a synergistic effect in FS.
Sludge solids showed a negative effect on CTC degradation efficiency.