p.537
p.541
p.547
p.552
p.560
p.565
p.569
p.573
p.579
The Treatment of Concentrated Landfill Leachate from Membrane-Based Processes by Supercritical Water Oxidation
Abstract:
Supercritical water oxidation (SCWO) of concentrated landfill leachate has been carried out in a batch reactor in fluidized bed sand bath, operated under varied temperature (450-600 °C), pressure (23-29 MPa), residence time (5-20 min) and oxidation coefficient (1.5-3.0). The experimental results indicated that temperature and oxidation coefficient had significant influences on the oxidation reaction, whereas the pressure and residence time were not crucial factors. The chemical oxygen demand (COD) and ammonia nitrogen (NH4-N) removal efficiencies could reach up to 99.23% and 98.64% at 600 °C, 25 MPa and 5 min with a oxidation coefficient of 2, respectively, and the effluents could be discharged harmlessly.
Info:
Periodical:
Pages:
560-564
Citation:
Online since:
February 2014
Authors:
Price:
Сopyright:
© 2014 Trans Tech Publications Ltd. All Rights Reserved
Share:
Citation: