| Title: | Ethanethiol gas removal in an anoxic bio-scrubber |
| Author(s): | Mhemid RKS; Akmirza I; Shihab MS; Turker M; Alp K; |
| Address: | "Department of Environmental Engineering, Istanbul Technical University, 34469, Istanbul, Turkey; College of Environmental Science and Technology, Mosul University, 41002, Iraq. Electronic address: mhemid@itu.edu.tr. Department of Environmental Engineering, Istanbul Technical University, 34469, Istanbul, Turkey; Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina S/n. 47011, Valladolid, Spain. Department of Environmental Engineering, Istanbul Technical University, 34469, Istanbul, Turkey; Environmental Engineering Dept, Mousl University, 41002, Iraq. Pakmaya P.O. Box 149, 41001, Izmit, Kocaeli, Turkey. Department of Environmental Engineering, Istanbul Technical University, 34469, Istanbul, Turkey" |
| DOI: | 10.1016/j.jenvman.2018.12.017 |
| ISSN/ISBN: | 1095-8630 (Electronic) 0301-4797 (Linking) |
| Abstract: | "The performance of ethanethiol removal in an anoxic lab-scale bio-scrubber was investigated under different operating parameters and conditions for 300 days. The removal efficiency (RE) of ethanethiol was examined as a function of inlet concentration, empty bed residence time (EBRT) and spray density of irrigation. The results showed the best operation conditions and operation characteristics of the bio-scrubber for this study were at an inlet concentration of 150?ª+mg/m(3), a spray density of 0.23?ª+m(3)/m(2) h and an EBRT of 90?ª+s. An average RE of 91% and elimination capacity (EC) of 24.74?ª+g/m(3) h was found for all inlet ethanethiol concentrations. Variations in spray density higher than 0.23?ª+m(3)/m(2) h had no effect on ethanethiol RE at different ethanethiol concentrations. The average experimental yield values were closer to the Y(ET/NO3)(-) theoretical value of 0.74 when the main product was elemental sulphur (S(o)). This indicates that S(o) and other forms of sulphur were formed rather than sulphate (SO(4)(2-)) as the end product. Furthermore, growth kinetics for bio-degradation were evaluated in batch culture experiments using the Monod model, and bio-kinetic parameters of mu(max), K(s), Y(xs) and q(max) were obtained as 0.14 1/h, 1.17?ª+mg/L, 0.52 g(x)/g(s) and 0.26?ª+g(s)/g(x) h, respectively" |
| Keywords: | Filtration Kinetics *Sulfhydryl Compounds *Sulfur Bio-degradation Ethanethiol Kinetics and stoichiometric characterization Lab-scale bio-scrubber Volatile organic sulphur compounds; |
| Notes: | "MedlineMhemid, Rasha Khalid Sabri Akmirza, Ilker Shihab, Mohammed Salim Turker, Mustafa Alp, Kadir eng England 2019/01/01 J Environ Manage. 2019 Mar 1; 233:612-625. doi: 10.1016/j.jenvman.2018.12.017. Epub 2018 Dec 29" |
