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Stability of Volatile Sulfur Compounds (VSCs) in sampling bags impact of temperature

Citation

Le, H and Sivret, E and Parcsi, G and Stuetz, RM, Stability of Volatile Sulfur Compounds (VSCs) in sampling bags - impact of temperature, Water Science and Technology, 68, (8) pp. 1880-1887. ISSN 0273-1223 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 IWA Publishing

DOI: doi:10.2166/wst.2013.445

Abstract

Volatile sulfur compounds (VSCs) are a major component of odorous emissions that can cause annoyance to local populations surrounding wastewater, waste management and agricultural practices. Odour collection and storage using sample bags can result in VSC losses due to sorption and leakage. Stability within 72 hour storage of VSC samples in three sampling bag materials (Tedlar, Mylar, Nalophan) was studied at three temperatures: 5, 20, and 30 C. The VSC samples consisted of hydrogen sulfide (H2S), methanethiol (MeSH), ethanethiol (EtSH), dimethyl sulfide (DMS), tert-butanethiol (t-BuSH), ethylmethyl sulfide (EMS), 1-butanethiol (1-BuSH), dimethyl disulfide (DMDS), diethyl disulfide (DEDS), and dimethyl trisulfide (DMTS). The results for H2S showed that higher loss trend was clearly observed (4650% at 24 hours) at 30 C compared to the loss at 5 C or 20 C (of up to 27% at 24 hours) in all three bag materials. The same phenomenon was obtained for other thiols with the relative recoveries after a 24 hour period of 7678% at 30 C and 8093% at 5 and 20 C for MeSH; 7780% at 30 C and 7995% at 5 and 20 C for EtSH; 8789% at 30 C and 8298% at 5 and 20 C for t-BuSH; 6173% at 30 C and 7698% at 5 and 20 C for 1-BuSH. Results for other sulfides and disulfides (DMS, EMS, DMDS, DEDS) indicated stable relative recoveries with little dependency on temperature (83103% after 24 hours). DMTS had clear loss trends (with relative recoveries of 7487% in the three bag types after 24 hours) but showed minor differences in relative recoveries at 5, 20, and 30 C.

Item Details

Item Type:Refereed Article
Keywords:volatile sulfur compounds, odorant, storage, Mylar, Nalophan, sample storage, sampling bags, Tedlar
Research Division:Engineering
Research Group:Environmental engineering
Research Field:Environmental engineering not elsewhere classified
Objective Division:Commercial Services and Tourism
Objective Group:Water and waste services
Objective Field:Water recycling services (incl. sewage and greywater)
UTAS Author:Sivret, E (Dr Eric Sivret)
ID Code:140893
Year Published:2013
Web of Science® Times Cited:12
Deposited By:Engineering
Deposited On:2020-09-14
Last Modified:2020-10-27
Downloads:0

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