Continuous Monitoring of Total Organic Carbon Based on Supercritical Water Oxidation Improved by CuSO4 CatalystDongdong Han1, Hui Zhang2, Lin Fang1 and Chunmian Lin1*
- *Corresponding Author:
- Chunmian Lin
College of Biological and Environmental Engineering
Zhejiang University of Technology, Hangzhou, Zhejiang, China
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.
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.