A Review of Dehydration of Various Industrial Sludges |
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| Authors: | Tolga Tunçal Orhan Uslu |
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| Affiliation: | 1. Environmental Engineering Department , Nam?k Kemal University, ?orlu Engineering Faculty , ?orlu , Tekirda? , Turkey ttuncal@nku.edu.tr;3. Civil Engineering Department , Yeditepe University, Engineering Faculty , Ata?ehir , Istanbul , Turkey |
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| Abstract: | Wastewater characteristics and sludge generation potential of point source categories are reviewed critically. Novel industry-specific sludge dewatering/drying solutions necessary to establish a sustainable model are examined through a detailed literature survey. Knowledge of sludge properties is one of the most critical issues needed to design dewatering/drying equipment. This study focuses on industrial wastewater/sludge characterization. In addition, a comprehensive review of current drying models and technologies is also presented. A summary of the results derived from a novel thin-film-based photonic sludge dewatering/drying study is outlined as an alternative approach for industrial sludge control. Sludge was dried in a tubular quartz reactor (TQR), the inner surface of which was coated with a TiO2 thin film. The TQR was irradiated with UV A, UV B, and UV C lamps. The consumed and generated energy fluxes through endergonic and exergonic reactions driven by photolysis and photocatalysis were investigated. In addition, the variations in sludge dewatering/drying characteristics were also examined and compared with conventional methods to evaluate the energy requirements. |
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| Keywords: | Dewatering Drying kinetics Drying methods Industrial sludge Nanotechnology Photocatalysis |
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