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Title: Treatment of pulp and paper mill effluent
Authors: Garg, Anurag
Narayana, V V V S S
Chaudhary, Parmesh
Chand, Shri
Keywords: Pulp
Wet air oxidation
Issue Date: Aug-2004
Publisher: CSIR
Series/Report no.: <b style="">Int. Cl.<sup>7</sup></b>: C 02 F 1/100
Abstract: Pulp and paper mill effluent (COD= 0.7 kg/m<sup>3</sup>) 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 95<sup>o</sup>C under atmospheric pressure conditions. A maximum COD reduction of 83 per cent for (CuO-ZnO)/CeO<sub>2</sub> catalyst was obtained in 2 h reaction time at a catalyst conc. of 5 kg/m<sup>3</sup> and the initial pH of wastewater sample at 3.0. LaCoO<sub>3</sub> catalyst showed the maximum COD reduction in the basic medium (pH 9.0), whereas the two other catalysts were active in acidic region.
Description: 667-671
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.63(08) [August 2004]

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