In this study, industrial wastewater sludges from T#xFC;pra#x15F; oil refinery and F#xFC;rsan citric acid manufacturing factory were characterized to investigate important parameters for the conditioning and dewatering efficiencies by means of laboratory pressure filtration time (PFT) studies. A preliminary assessment of the most suitable dewatering system (centrifuge, filter press, belt#x2010;press) was also provided on the basis of the experimental results.
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