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JSIR Vol.63(08) [August 2004] >


Title: Treatment of pulp and paper mill effluent
Authors: Garg, Anurag
Narayana, V V V S S
Chaudhary, Parmesh
Chand, Shri
Keywords: Pulp
Paper
Effluent
Wet air oxidation
Catalyst
Issue Date: Aug-2004
Publisher: CSIR
IPC CodeInt. Cl.7: C 02 F 1/100
Abstract: Pulp and paper mill effluent (COD= 0.7 kg/m3) was treated for the removal of non-biodegradable and toxic compounds by wet air oxidation (WAO) using heterogeneous catalysts. The catalysts include (CuO-ZnO) supported on alumina and ceria as well as lanthanum based perovskites. The activity tests were carried out at 95oC under atmospheric pressure conditions. A maximum COD reduction of 83 per cent for (CuO-ZnO)/CeO2 catalyst was obtained in 2 h reaction time at a catalyst conc. of 5 kg/m3 and the initial pH of wastewater sample at 3.0. LaCoO3 catalyst showed the maximum COD reduction in the basic medium (pH 9.0), whereas the two other catalysts were active in acidic region.
Page(s): 667-671
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.63(08) [August 2004]

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