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Thermal monitoring for control of adsorptive based clean-up in water treatment

Authors
Journal
Water Research
0043-1354
Publisher
Elsevier
Volume
29
Issue
9
Identifiers
DOI: 10.1016/0043-1354(95)00038-m
Keywords
  • Gac
  • Packed Bed
  • Thermal Monitoring
  • Neural Network
Disciplines
  • Computer Science

Abstract

Abstract A sensor based technique for monitoring adsorptive based clean-up in water treatment has been developed. The approach is based on monitoring the thermal effects of a partial desorption of adsorbed material resulting from a temperature change generated by a pulsed energy input. Results reported for the adsorption of phenol onto a packed bed of granular activated carbon (GAC) show that the extent of the bed saturation can be followed by measuring this thermal effect using a simple thermistor circuit. Although the signal produced is complex a neural network based model can be used to simply correlate sensor response with column breakthrough measurements.

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