PreprintArticleVersion 1This version is not peer-reviewed
Reduction of Olfactory Discomfort in Inhabited Premises from Areas with Mofettas through Cellulosic Derivative–Polypropylene Hollow Fiber Composite Membranes
Version 1
: Received: 20 July 2024 / Approved: 20 July 2024 / Online: 22 July 2024 (09:51:09 CEST)
How to cite:
Albu, P. C.; Pîrțac, A.; Motelica, L.; Nechifor, A. C.; Man, G. T.; Grosu, A. R.; Tanczos, S.-K.; Grosu, V.-A.; Nechifor, G. Reduction of Olfactory Discomfort in Inhabited Premises from Areas with Mofettas through Cellulosic Derivative–Polypropylene Hollow Fiber Composite Membranes. Preprints2024, 2024071653. https://doi.org/10.20944/preprints202407.1653.v1
Albu, P. C.; Pîrțac, A.; Motelica, L.; Nechifor, A. C.; Man, G. T.; Grosu, A. R.; Tanczos, S.-K.; Grosu, V.-A.; Nechifor, G. Reduction of Olfactory Discomfort in Inhabited Premises from Areas with Mofettas through Cellulosic Derivative–Polypropylene Hollow Fiber Composite Membranes. Preprints 2024, 2024071653. https://doi.org/10.20944/preprints202407.1653.v1
Albu, P. C.; Pîrțac, A.; Motelica, L.; Nechifor, A. C.; Man, G. T.; Grosu, A. R.; Tanczos, S.-K.; Grosu, V.-A.; Nechifor, G. Reduction of Olfactory Discomfort in Inhabited Premises from Areas with Mofettas through Cellulosic Derivative–Polypropylene Hollow Fiber Composite Membranes. Preprints2024, 2024071653. https://doi.org/10.20944/preprints202407.1653.v1
APA Style
Albu, P. C., Pîrțac, A., Motelica, L., Nechifor, A. C., Man, G. T., Grosu, A. R., Tanczos, S. K., Grosu, V. A., & Nechifor, G. (2024). Reduction of Olfactory Discomfort in Inhabited Premises from Areas with Mofettas through Cellulosic Derivative–Polypropylene Hollow Fiber Composite Membranes. Preprints. https://doi.org/10.20944/preprints202407.1653.v1
Chicago/Turabian Style
Albu, P. C., Vlad-Alexandru Grosu and Gheorghe Nechifor. 2024 "Reduction of Olfactory Discomfort in Inhabited Premises from Areas with Mofettas through Cellulosic Derivative–Polypropylene Hollow Fiber Composite Membranes" Preprints. https://doi.org/10.20944/preprints202407.1653.v1
Abstract
Hydrogen sulfide is present in active or extinct volcanic areas (mofettas). The habitable premises in these areas are affected by the presence of hydrogen sulfide, which, even in low concentrations, gives off a bad to unbearable smell. If the living spaces considered are closed enclosures, then a system can be designed to reduce the concentration of hydrogen sulfide. This paper presents a membrane way to reduce the hydrogen sulfide concentration to acceptable limits using a cellulosic derivative-propylene hollow fiber based composite membrane module. The cellulosic derivatives considered were carboxymethyl–cellulose (NaCMC), cellulose acetate (CA), methyl 2–hydroxyethyl–cellulose (MHEC), and 2–hydroxyethyl–cellulose (HEC). In the permeation module, hydrogen sulfide is captured with a solution of cadmium that forms cadmium sulfide, usable as a luminescent substance. The composite membranes were characterized by SEM, EDAX, FTIR, FTIR 2D maps, thermal analysis (TG and DSC) and from the perspective of hydrogen sulfide air removal performance. To determine the process performances, the variables were: the nature of the cellulosic derivative–polypropylene hollow fiber composite membrane, the concentration of hydrogen sulfide in the polluted air, the flow rate of polluted air, and the pH of the cadmium nitrate solution. Pertraction efficiency was maximum for the sodium carboxymethyl–cellulose (NaCMC)-polypropylene hollow fiber membrane, a hydrogen sulfide concentration in the polluted air of 20 ppm, polluted air flow rate of 50 L/min, and a pH of 2 and 4.
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
