Temperature effects of trickle-bed biofilter for treating BTEX vapors
| Autor: | Chenghaw Chu, Chungsying Lu, Min-Ray Lin |
|---|---|
| Předmět: |
chemistry.chemical_classification
Environmental Engineering Chromatography Chemistry Trickling filter BTEX Trickle-bed reactor Atmospheric temperature range Ethylbenzene chemistry.chemical_compound Environmental chemistry Biofilter Environmental Chemistry Volatile organic compound Temperature coefficient General Environmental Science Civil and Structural Engineering |
| Zdroj: | Scopus-Elsevier |
| Popis: | Effects of temperature change in the range of 15–50°C on the performance of a trickle-bed biofilter for treating benzene, toluene, ethylbenzene and o-xylene (BTEX) vapors in air streams were investigated. In the steady-state condition, the BTEX removal efficiency increased as the operating temperature increased in the range of 15–30°C. However, an opposite trend was observed between 30 and 50°C. The trickle-bed biofilter appears to be an effective treatment process in the temperature range of 25–35°C. The microscopic observations showed that the morphologies of the leading microorganisms within the first-stage biofilm were rod-shaped bacteria in association with filaments, bacilli, and cocci at 15, 30, and 50°C, respectively. A theoretical evaluation on the temperature coefficient (θ) indicated that the temperature effects on the performance of a trickle-bed biofilter are more significant under lower BTEX loading rates. Furthermore, the mean θ value for a trickle-bed biofilter was equal to 1.021, which is... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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