Review of Dehydration of Various Industrial Sludges

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 on...

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Bibliographic Details
Published in:Drying technology 2014-10, Vol.32 (14), p.1642-1654
Main Authors: Tunçal, Tolga, Uslu, Orhan
Format: Article
Language:English
Subjects:
Categories
Dewatering
Drying
Drying agents
drying equipment
Drying kinetics
Drying methods
Energy consumption
energy flow
energy requirements
Industrial sludge
Industrial wastes
lamps
Nanotechnology
Photocatalysis
photolysis
Photonics
quartz
Sludge
surveys
Thin films
Titanium dioxide
Waste water
wastewater
Water treatment
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Summary: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 TiO ₂ 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.
ISSN:1532-2300
0737-3937
1532-2300
DOI:10.1080/07373937.2014.909846