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Environments 2016, 3(4), 27;

Study on the Kinetics and Removal Formula of Methanethiol by Ethanol Absorption

School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China
Research Center of Water Supply and Water Pollution Control, Wuhan University of Technology, Wuhan 430070, China
Henan Civil Aviation Development and Investment Co. Ltd, Zhengzhou 450000, China
Author to whom correspondence should be addressed.
Academic Editors: Ki-Hyun Kim and Abderrahim Lakhouit
Received: 1 September 2016 / Revised: 20 October 2016 / Accepted: 21 October 2016 / Published: 27 October 2016
(This article belongs to the Special Issue Volatile Organic Compounds in Environment)
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Biological filtration is widely used for deodorising in wastewater treatment plants. This technique can efficiently remove soluble odour-causing substances, but minimally affects hydrophobic odorants, such as methanethiol (MT) and dimethyl sulfide. Ethanol absorption capacity for MT (as a representative hydrophobic odorant) was studied, and the MT removal rate formula was deduced based on the principle of physical absorption. Results indicated that the MT removal rate reached 80% when the volume ratio of ethanol/water was 1:5. The phase equilibrium constant was 0.024, and the overall mass transfer coefficient was 2.55 kmol/m2·h in the deodorisation tower that functioned as the physical absorption device. Examination results showed that the formula exhibited adaptability under changing working conditions. These findings provide a reference for engineering design and operation of a process for the removal of MT by ethanol absorption. View Full-Text
Keywords: ethanol; methanethiol (MT); absorption; removal formula; kinetic parameters ethanol; methanethiol (MT); absorption; removal formula; kinetic parameters

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Jiang, Y.; Lin, X.; Li, W.; Liu, X.; Wu, Y. Study on the Kinetics and Removal Formula of Methanethiol by Ethanol Absorption. Environments 2016, 3, 27.

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