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Catalysts 2018, 8(2), 67; doi:10.3390/catal8020067

Catalytic Wet Oxidation of Pharmaceutical Sludge by Molecular Sieve Loaded with Cu/Ce

1,* , 1,2
and
1
1
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
2
Shanghai Electric Power Generatoin Environment Protection Engineering Co., Ltd., Shanghai 201612, China
*
Author to whom correspondence should be addressed.
Received: 24 December 2017 / Revised: 27 January 2018 / Accepted: 29 January 2018 / Published: 8 February 2018
(This article belongs to the Special Issue Catalytic Wet-Air Oxidation Processes)
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Abstract

In the present study, the catalytic wet oxidation of pharmaceutical sludge by molecular sieve loaded with Cu/Ce as catalyst was investigated. Experiments were performed in an experimental batch reactor. Reaction parameters including catalyst dose, temperature, time, and oxygen pressure were discussed. The results showed that the catalysts prepared by co-precipitating method have good catalytic performance. Under optimum conditions, the highest volatile suspended solids (VSS) removal rate approximately 92% and chemical oxygen demand (COD) removal rate of 75% were obtained at 260 °C for 60 min with initial oxygen pressure 1.0 MPa and the catalyst 10 g/L. These results implied that the catalytic wet oxidation of pharmaceutical sludge by molecular sieve loaded with Cu/Ce is a promising method for the highly efficient degradation of the sludge. View Full-Text
Keywords: pharmaceutical sludge; wet oxidation; molecular sieve; chemical oxygen demand; volatile suspended solids pharmaceutical sludge; wet oxidation; molecular sieve; chemical oxygen demand; volatile suspended solids
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Zeng, X.; Liu, J.; Zhao, J. Catalytic Wet Oxidation of Pharmaceutical Sludge by Molecular Sieve Loaded with Cu/Ce. Catalysts 2018, 8, 67.

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