July 25, 2024

Sohrab Fathi

Academic rank: Assistant professor
Address: Department of Chemical Engineering, Faculty of Energy, Kermanshah University of Technology, Kermanshah, Iran
Education: Ph.D in Chemical Engineering
Phone: +988338305002 (1162)
Faculty: Faculty of Engineering

Research

Title
Removal of dissolved oxygen from industrial raw water in a microchannel
Type Article
Keywords
Dissolved oxygen;Removal;Microchannel;Industrial raw water;Comparison
Researchers samira jokar، Babak Aghel، Sohrab Fathi، Mehdi Karimi

Abstract

The aim of this study is to reach the maximum percentage of dissolved oxygen removal from industrial raw water using microchannel. In this study, two continuous and batch systems were used for the deoxygenation of water. Nitrogen and natural gas were studied as deoxygenation agents for the evaluation of microchannel efficiency. For an accurate investigation of the issue, the Box–Behnken response surface method was utilized for experiment design and analysis of results. The parameters of temperature (T), gas/liquid flow ratio (G/l), and residence time (t) were the effective factors on the efficiency of the system. The temperature was set in the range of 80−120 °C, G/L in the range of 2–8 for both systems, and the residence time was 1–5 s for the continuous system and 120-480 s for the batch system. The maximum elimination percentage for nitrogen and natural gas were obtained to be 97.105 and 98.530 when experiments were carried out at the optimum conditions predicted by Design Expert software (T = 80 °C, G/L