Abstract
The anaerobic removal of continuously fed gas-phase methanol (2.5–30 g/m3.h) and the reduction of step-fed thiosulphate (1000 mg/L) was investigated in a biotrickling filter (BTF) operated for 123 d at an empty bed residence time (EBRT) of 4.6 and 2.3 min. The BTF performance during steady step-feed and special operational phases like intermittent liquid trickling in 6 and 24 h cycles and operation without pH regulation were evaluated. Performance of the BTF was not affected and nearly 100% removal of gas-phase methanol was achieved with an ECmax of 21 g/m3.h. Besides, >99% thiosulphate reduction was achieved, in all the phases of operation. The production of sulphate, H2S and volatile fatty acids (VFA) was monitored and a maximum of 2500 mg/L of acetate, 200 mg/L of propionate, 150 mg/L of isovalerate and 100 mg/L isobutyrate was produced.
| Original language | English |
|---|---|
| Pages (from-to) | 591-600 |
| Number of pages | 10 |
| Journal | Bioresource Technology |
| Volume | 263 |
| DOIs | |
| Publication status | Published - 1 Sept 2018 |
| Publication type | A1 Journal article-refereed |
Keywords
- Anaerobic
- Biotrickling filter (BTF)
- Gas-phase methanol
- Steady and intermittent BTF operation
- Thiosulphate reduction
- Volatile fatty acid
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal