alexa Continuous Monitoring of Total Organic Carbon Based on Supercritical Water Oxidation Improved by CuSO4 Catalyst | OMICS International | Abstract
ISSN: 2155-9872

Journal of Analytical & Bioanalytical Techniques
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Research Article

Continuous Monitoring of Total Organic Carbon Based on Supercritical Water Oxidation Improved by CuSO4 Catalyst

Dongdong Han1, Hui Zhang2, Lin Fang1 and Chunmian Lin1*

1College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China

2Zhejiang Institute of Metrology, Hangzhou, Zhejiang, China

*Corresponding Author:
Chunmian Lin
College of Biological and Environmental Engineering
Zhejiang University of Technology, Hangzhou, Zhejiang, China
Tel: +86-0571-88320976
E-mail: [email protected]

Received date: September 24, 2015; Accepted date: October 26, 2015; Published date: November 02, 2015

Citation: Han D, Zhang H, Fang L, Lin C (2015) Continuous Monitoring of Total Organic Carbon Based on Supercritical Water Oxidation Improved by CuSO4 Catalyst. J Anal Bioanal Tech S13:002. doi:10.4172/2155-9872.S13-002

Copyright: © 2015 Han D, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A device that can detect the concentration of total organic carbon (TOC) continuously was designed by combining the technology of supercritical water oxidation (SCWO) and non-dispersive infrared analyzer (NDIR). CuSO4, as one of the common homogeneous catalysts in the SCWO of wastewater, was introduced into the device to lower the reaction temperature and improve the utilization efficiency of H2O2 oxidant. Catalyst use was seen to improve destruction rate significantly, when compared with the results obtained during the non-catalytic experiments. While the oxidant stoichiometric excess needed was ten times or more under non-catalytic condition, it only needed to be two for CuSO4 catalytic system. With CuSO4 solution pumped into the reaction system, lower energy consumption was required and less thermal and mechanical stresses exist within the detecting equipment. The device could detect the concentration of TOC for practical wastewater with low proportion of inorganic carbon precisely and continuously, while for those with high proportion of inorganic carbon a pre-treatment like acidification was needed.

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