{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T21:27:08Z","timestamp":1768685228440,"version":"3.49.0"},"reference-count":27,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2012,12,7]],"date-time":"2012-12-07T00:00:00Z","timestamp":1354838400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Sewer odors have been a concern to citizens of the Metropolitan Seoul region, which has installed combined sewer systems (CSSs) in 86% of its area. Although a variety of odorants are released from sewers, volatile sulfur compounds (VSCs) have been recognized as major ones. A number of technologies have been proposed to monitor or control odors from sewers. One of the most popular strategies adopted for the control of sewage odor is by applying a commercial odor-reducing agent into the sewer. In this study, the effectiveness of five different commercial odor-reducing agents (i.e., an odor masking agent, an alkaline solution, two microbial agents, and a chemical oxidant) was evaluated by continuously monitoring VSCs released from the sewer with an on-line total reduced sulfur (TRS) analyzer before and after each agent was sprayed into CSSs at five different locations of the city. In short, when the effectiveness of odor treatment was tested in the sewer system using five commercial odor reducing treatments, only the chemical oxidant was good enough to reduce the odor in terms of TRS levels measured before and after the application (p &lt; 0.01).<\/jats:p>","DOI":"10.3390\/s121216892","type":"journal-article","created":{"date-parts":[[2012,12,7]],"date-time":"2012-12-07T11:07:28Z","timestamp":1354878448000},"page":"16892-16906","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Evaluation of the Effectiveness of Five Odor Reducing Agents for Sewer System Odors Using an On-Line Total Reduced Sulfur Analyzer"],"prefix":"10.3390","volume":"12","author":[{"given":"Il","family":"Choi","sequence":"first","affiliation":[{"name":"Department of Energy and Environmental System Engineering, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul 130-743, Korea"}]},{"given":"Hyunjoo","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Energy and Environmental System Engineering, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul 130-743, Korea"}]},{"given":"Joungdu","family":"Shin","sequence":"additional","affiliation":[{"name":"Department of Climate Change & Ecology, National Academy of Agricultural Science, RDA, Suin-ro, 126th, Gwonseon-gu Suwon Gyeonggi-do, Suwon 441-707, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1256-480X","authenticated-orcid":false,"given":"Hyunook","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Energy and Environmental System Engineering, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul 130-743, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2012,12,7]]},"reference":[{"key":"ref_1","first-page":"185","article-title":"Investigation of odor release from combined sewer","volume":"10","author":"Gil","year":"2010","journal-title":"J. Kor. Soc. Hazard Mitig"},{"key":"ref_2","first-page":"180","article-title":"Odor from wastewater treatment plants","volume":"5","author":"Kim","year":"2006","journal-title":"Kor. J. Odor Res. Eng"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/j.trac.2011.08.008","article-title":"A review of sensor-based methods for monitoring hydrogen sulfide","volume":"32","author":"Pandey","year":"2012","journal-title":"Trends Anal. Chem"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"575","DOI":"10.1007\/s00018-002-8450-6","article-title":"Microbial cycling of volatile organic sulfur compounds","volume":"59","author":"Lomans","year":"2002","journal-title":"Cell. Mol. Life Sci"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Yarosz, D.P., Chen, Y., and Murthy, S. (2003, January 19\u201322). Mechanisms of volatile sulfur compounds and odor production in digested biosolids. Baltimore, MD, USA.","DOI":"10.2175\/193864703784292926"},{"key":"ref_6","first-page":"339","article-title":"Water depollution and the odor control by wet air catalytic oxidation of ammonia, sulfides, and mercaptans of industrial wastewater","volume":"23","author":"Dobrynkin","year":"2010","journal-title":"Chem. Eng. Trans"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1080\/10643389609388489","article-title":"Sulfate-reducing bacteria","volume":"26","author":"Hao","year":"1996","journal-title":"Crit. Rev. Environ. Sci. Technol"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"2261","DOI":"10.2175\/106143008X304677","article-title":"Identification of seasonal variations in volatile sulfur compound formation and release from secondary treatment system at a large wastewater treatment plant","volume":"80","author":"Sekyiamah","year":"2008","journal-title":"Water Environ. Res"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1080\/10643389891254179","article-title":"Treatment of waste gases contaminated with odorous sulfur compounds","volume":"28","author":"Smet","year":"1998","journal-title":"Crit. Rev. Environ. Sci. Technol"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"579","DOI":"10.1016\/S0043-1354(00)00313-4","article-title":"Odour measurements for sewage treatment works","volume":"35","author":"Gostelow","year":"2001","journal-title":"Water Res"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1016\/j.chemosphere.2011.12.070","article-title":"Effect of incineration on the removal of key offensive odorants released from a Landfill Leachate Treatment Station (LLTS)","volume":"87","author":"Ray","year":"2012","journal-title":"Chemosphere"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"3556","DOI":"10.2175\/193864707787973851","article-title":"Real-time monitoring and forecasting of odor after dewatering in wastewater treatment","volume":"41","author":"Janpengpen","year":"2007","journal-title":"Water Environ. Fed"},{"key":"ref_13","unstructured":"Development of Protocol for Odor Measurement and Characterization in Wastewater Treatment Plants. Available online: http:\/\/www.valoriza-agua.com\/es_es\/Images\/Desarrollo%20de%20un%20protocolo%20de%20medida%20de%20olores%20en%20las%20EDARs_tcm19-4418.pdf (accessed on 19 September 2012)."},{"key":"ref_14","unstructured":"(2001). Operation Manual for Air Quality Monitoring in Ontario, Ministry of the Environment."},{"key":"ref_15","unstructured":"Hydrogen Sulfide Control in Wastewater Collection Systems. Available online: http:\/\/www.wwdmag.com\/corrosion\/hydrogen-sulfide-control-wastewater-collection-systems (accessed on 21 September 2010)."},{"key":"ref_16","unstructured":"(2008). An Advisory Panel Operation for Odor Measurement in Public Facility in 2008, Ministry of Environment."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1002\/ep.670200313","article-title":"Absorption of H2S in NaOCl caustic aqueous solution","volume":"20","author":"Chen","year":"2001","journal-title":"Environ. Prog"},{"key":"ref_18","unstructured":"(2006). Instruction Manual Model 102A TRS Analyzer Model 501 TRS Total Reduced Sulfur (TRS) Thermal Converter, Teledyne."},{"key":"ref_19","first-page":"761","article-title":"Review of odor measurement and analysis method","volume":"29","author":"Lee","year":"2007","journal-title":"Kor. Soc. Environ. Eng"},{"key":"ref_20","unstructured":"(2007). Regulation and Measurement of Odor, Ministry of Environment."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1016\/j.chemosphere.2003.12.017","article-title":"Environmental VOSCs\u2013\u2013formation and degradation of dimethyl sulfide, methanethiol and related materials","volume":"55","author":"Bentley","year":"2004","journal-title":"Chemosphere"},{"key":"ref_22","unstructured":"(2001). Odour Impacts and Odour Emission Control Measures for Intensive Agriculture, Final Report for European commission."},{"key":"ref_23","unstructured":"(2011). Odour Guidance 2010, Scottish Environment Protection Agency. [1st ed]."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1051\/vetres:2001121","article-title":"Resistance to antibiotics in the normal flora of animals","volume":"32","author":"Sunde","year":"2001","journal-title":"Vet. Res"},{"key":"ref_25","first-page":"1","article-title":"Efficacy of a microbial additive in reducing odor, ammonia, and hydrogen sulfide emissions from farrowing-gestation swine operation","volume":"3","author":"Rahman","year":"2011","journal-title":"Agric. Eng. Int. CIGR J"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"3887","DOI":"10.2175\/193864711802764913","article-title":"New Orleans\u2019 experience in usage of bio-stimulant in their wastewater collection system to reduce BOD5 and control odor\/corrosion","volume":"61","author":"Reimers","year":"2011","journal-title":"Water Environ. Fed"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"283","DOI":"10.2166\/wst.1995.0244","article-title":"The control of septicity and odours in sewerage systems and at sewage treatment works operated by Anglian Water Services Limited","volume":"31","author":"Sercombe","year":"1995","journal-title":"Water Sci. Technol"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/12\/12\/16892\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:54:06Z","timestamp":1760219646000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/12\/12\/16892"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,12,7]]},"references-count":27,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2012,12]]}},"alternative-id":["s121216892"],"URL":"https:\/\/doi.org\/10.3390\/s121216892","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,12,7]]}}}