RT journal article
T1 Biofiltration of gaseous mixtures of dimethyl sulfide, dimethyl disulfide and dimethyl trisulfide: Effect of operational conditions and microbial analysis
A1 González Cortés, José Joaquín
A1 Lamprea-Pineda, P. A.
A1 Ramírez, M.
A1 Demeestere, K.
A1 Van Langenhove, H.
A1 Walgraeve, C.
A2 Ingeniería Química y Tecnología de Alimentos
K1 DMS
K1 DMDS
K1 DMTS
K1 VSC
K1 Biofilter
K1 pH
K1 Sewer
K1 Odor
AB The efficient removal of volatile sulfur compounds (VSCs), such as dimethyl sulfide (DMS), dimethyl disulfide(DMDS) and dimethyl trisulfide (DMTS), is crucial due to their foul odor and corrosive potential in sewer systems. Biofilters (BFs) offer promise for VSCs removal, but face challenges related to pH control and changingconditions at full scale. Two BFs, operated under acidophilic conditions for 78 days, were evaluated for theirperformance at varying inlet concentrations and empty bed residence times (EBRTs). BF1, incorporating 4–6 mmmarble limestone for pH control, outperformed BF2, which used NaHCO3 in the nutrient solution. BF1 displayedbetter resilience, maintained a stable pH of 4.6 ± 0.6, and achieved higher maximum elimination capacities(ECmax, 41 mg DMS m− 3 h− 1 (RE 38.3%), 146 mg DMDS m− 3 h− 1 (RE 83.1%), 47 mg DMTS m− 3 h− 1 (RE 93.1%))at an EBRT of 56 s compared to BF2 (9 mg DMS m− 3 h− 1 (RE 7.1%), 9 mg DMDS m− 3 h− 1 (RE 4.8%) and 11 mgDMTS m− 3 h− 1 (RE 26.6%)). BF2 exhibited pH stratification and decreased performance after feeding interruptions. The biodegradability of VSCs followed the order DMTS > DMDS > DMS, and several microorganismswere identified contributing to VSCs degradation in BF1, including Bacillus (14%), Mycobacterium (11%), Acidiphilium (7%), and Acidobacterium (3%).
PB Elsevier Ltd
SN 1095-8630
YR 2024
FD 2024-05-30
LK http://hdl.handle.net/10498/33517
UL http://hdl.handle.net/10498/33517
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026