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This paper proposes the use of natural fibres: cotton, hemp and jute, as an additive to the fillings in peat-bark biofilters used to deodorise industrial gases in order to increase the sorption properties of the biomass used. The subject of the studies involved waste gases from a grease trap, which were passed through biofilters to remove volatile fatty acids (VFAs) from them that are responsible for the odour nuisance of these gases. It was assumed that a set of microorganisms would be established on the biological material through a process of natural selection to convert the readily decomposable fatty acids into carbon dioxide and water. Gases were sampled upstream and downstream of the beds as well as analysed qualitatively and quantitatively on a gas chromatograph. On the basis of the changes in volatile fatty acid concentrations, the efficiency of the deodorisation process was evaluated. The deodorisation results were compared between the individual beds at the unstable stage of those beds filtration, i.e. during the period of biofilters activation and during their stable filtration. For each bed, the efficiency during each week of filtration was calculated. The efficiencies of removal of individual fatty acids from the waste gases were also compared. The studies show that a 3-month filtration period of the biofilter is sufficient for the biological bed to begin to effectively perform its function as a deodoriser of waste gases under industrial conditions. This period was characterised by considerable turbulence and activation of both the filter material and the microorganisms in the bed. During the first weeks of activation, the beds described in this paper showed relatively low deodorisation efficiencies (33–58%). In the next phase, there was an increase in flow resistance and a partial decrease in treatment effects to 32–47%. After that, there were fluctuations in deodorisation efficiency for several weeks until the microflora was established and adapted. During this period, the peat-bark bed had the best efficiency amounting to 70–80%. After 9 weeks, the beds were already partially activated, the microorganisms were moving towards equilibrium and the deodorisation efficiency with fibre beds was above 80%. After 15 weeks of filtration, the already activated biofilters reached efficiencies of over 90% and even 95% in the case of cotton.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
47--56
Opis fizyczny
Bibliogr. 12 poz., rys., tab.
Twórcy
autor
- Department of Environmental Protection and Engineering, Faculty of Materials, Construction and Environmental Engineering, University of Bielsko-Biala, ul. Willowa 2, 43-309 Bielsko-Biała, Poland
Bibliografia
- 1. Boehm A.B., Bell C.D., Fitzgerald N.J., Gallo E., Higgins C.P., Hogue T. S. & Wolfand J.M. 2020. Biochar-augmented biofilters to improve pollutant removal from stormwater–can they improve receiving water quality? Environmental Science: Water Research & Technology, 6(6), 1520-1537.
- 2. Caliskaner O., Tchobanoglous G., Imani L. N., Lund J., Davis B., Farias J.R. & Reid T. 2020. Performance Evaluation of Parallel Operation of Conventional Primary Treatment versus Primary Filtration and Biofiltration Systems. In: WEFTEC 2020. Water Environment Federation.
- 3. Christami M.N.A., Moersidik S.S., El Khobar M.N. & Silvia Y. 2019. Application of aerated submerged spongebed biofilter for raw water pre-treatment in drinking water installation. In: MATEC Web of Conferences, 270, 04008. EDP Sciences.
- 4. Lamprea Pineda P., Demeestere K., Toledo Padrón M., Boon N., Van Langenhove H. & Walgraeve C. 2021. Mesophilic and thermophilic biofiltration of N, N-Dimethylformamide: long-term performance evaluation and microbial communities’ evolution. In: 9th IWA Odour and VOC/Air Emissions Conference.
- 5. Miller U., Sówka I., Grzelka A., Pawnuk M. 2018. Application of biological deodorization methods in the aspect of sustainable development. SHS Web of Conferences 57, 02006 https://doi.org/10.1051/shsconf/20185702006
- 6. Osabutey A., Cromer B., Davids A., Prouty L., Haleem N., Thaler R. & Yang X. 2022. Distribution of airflow and media moisture content across two vertical bed biofilters. AgriEngineering, 4(1), 179-189.
- 7. Schmidt D., Jacobson L. & Nicolai D. 2020. Biofilter design information. University of Minnesota Extension.
- 8. Wierzbińska M. 2017. Biofiltry jako budowle w inżynierii środowiska, Materiały Budowlane, Wyd. SIGMA-NOT, 12, 27-30.
- 9. Wierzbińska M. 2021a. The application of mineral sorbents to remove volatile organic compounds from the gases emitted from the composting processes. Journal of Ecological Engineering. 22(2), 98-110, DOI: 10.12911/22998993/130888
- 10. Wierzbińska M. 2021b. The removal of organic acids and aldehydes from gases emitted from composting municipal waste. Journal of Ecological Engineering. 22(3), 58-66, DOI: 10.12911/22998993/132434
- 11. Wierzbińska M., Modzelewski W.E. 2015. Zastosowanie biofiltrów do dezodoryzacji uciążliwych gazów. Ecol. Eng., 41, 125-132.
- 12. Wysocka I., Gębicki J., Namieśnik J. 2019. Technologies for deodorization of malodorous gases, Environmental Science and Pollution Research, 26, 9409–9434. https://doi.org/10.1007/s11356-019-04195-1
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-34806740-12d2-401b-804c-e4f97d649f24