Kinetics of aerobic oxidation of volatile sulfur compounds in wastewater and biofilm from sewers

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Resumé

Laboratory experiments were conducted to investigate the kinetics of aerobic chemical and biological oxidation of selected odorous volatile sulfur compounds (VSCs) by wastewater and biofilm from sewers. The VSCs included methyl mercaptan (MeSH), ethyl mercaptan (EtSH), dimethyl sulfide (DMS) and total inorganic sulfide, which have all been reported as the main constituents of foul sewer gas. Samples of wastewater and biofilm for the experiments were obtained from two locations that differed significantly with respect to the occurrence of VSCs. One location represented an odor hot-spot downstream of a force main and the other was a gravity sewer transporting young aerobic wastewater. The kinetics of VSC oxidation for both wastewater and suspended biofilm samples followed a first-order rate equation. The average values of the reaction rate constants demonstrated the following order of reactivity: total inorganic sulfide >EtSH≥MeSH>>DMS. Except for total inorganic sulfide oxidation in wastewater, kinetic parameters for each VSC were of similar magnitude for the two locations. In the wastewater from the odor hot-spot, sulfide inorganic oxidation rates were approximately 12 times faster than in the aerobic wastewater.
OriginalsprogEngelsk
TidsskriftWater Science and Technology
Vol/bind68
Udgave nummer11
Sider (fra-til)2330–2336
Antal sider7
ISSN0273-1223
DOI
StatusUdgivet - 2013

Fingerprint

Sulfur compounds
Sewers
sulfur compound
Biofilms
sulfide (inorganic)
biofilm
Wastewater
wastewater
oxidation
kinetics
Oxidation
Kinetics
Odors
odor
sulfide
Kinetic parameters
reaction rate
Reaction rates
Sulfides
Rate constants

Emneord

  • Odor
  • Oxidation
  • Volatile sulfur compounds
  • Wastewater

Citer dette

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title = "Kinetics of aerobic oxidation of volatile sulfur compounds in wastewater and biofilm from sewers",
abstract = "Laboratory experiments were conducted to investigate the kinetics of aerobic chemical and biological oxidation of selected odorous volatile sulfur compounds (VSCs) by wastewater and biofilm from sewers. The VSCs included methyl mercaptan (MeSH), ethyl mercaptan (EtSH), dimethyl sulfide (DMS) and total inorganic sulfide, which have all been reported as the main constituents of foul sewer gas. Samples of wastewater and biofilm for the experiments were obtained from two locations that differed significantly with respect to the occurrence of VSCs. One location represented an odor hot-spot downstream of a force main and the other was a gravity sewer transporting young aerobic wastewater. The kinetics of VSC oxidation for both wastewater and suspended biofilm samples followed a first-order rate equation. The average values of the reaction rate constants demonstrated the following order of reactivity: total inorganic sulfide >EtSH≥MeSH>>DMS. Except for total inorganic sulfide oxidation in wastewater, kinetic parameters for each VSC were of similar magnitude for the two locations. In the wastewater from the odor hot-spot, sulfide inorganic oxidation rates were approximately 12 times faster than in the aerobic wastewater.",
keywords = "Odor, Oxidation, Volatile sulfur compounds, Wastewater, Odor, Oxidation, Volatile sulfur compounds, Wastewater",
author = "Rudelle, {Elise Alice} and Jes Vollertsen and Thorkild Hvitved-Jacobsen and Nielsen, {Asbj{\o}rn Haaning}",
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Kinetics of aerobic oxidation of volatile sulfur compounds in wastewater and biofilm from sewers. / Rudelle, Elise Alice; Vollertsen, Jes; Hvitved-Jacobsen, Thorkild; Nielsen, Asbjørn Haaning.

I: Water Science and Technology, Bind 68, Nr. 11, 2013, s. 2330–2336.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Kinetics of aerobic oxidation of volatile sulfur compounds in wastewater and biofilm from sewers

AU - Rudelle, Elise Alice

AU - Vollertsen, Jes

AU - Hvitved-Jacobsen, Thorkild

AU - Nielsen, Asbjørn Haaning

PY - 2013

Y1 - 2013

N2 - Laboratory experiments were conducted to investigate the kinetics of aerobic chemical and biological oxidation of selected odorous volatile sulfur compounds (VSCs) by wastewater and biofilm from sewers. The VSCs included methyl mercaptan (MeSH), ethyl mercaptan (EtSH), dimethyl sulfide (DMS) and total inorganic sulfide, which have all been reported as the main constituents of foul sewer gas. Samples of wastewater and biofilm for the experiments were obtained from two locations that differed significantly with respect to the occurrence of VSCs. One location represented an odor hot-spot downstream of a force main and the other was a gravity sewer transporting young aerobic wastewater. The kinetics of VSC oxidation for both wastewater and suspended biofilm samples followed a first-order rate equation. The average values of the reaction rate constants demonstrated the following order of reactivity: total inorganic sulfide >EtSH≥MeSH>>DMS. Except for total inorganic sulfide oxidation in wastewater, kinetic parameters for each VSC were of similar magnitude for the two locations. In the wastewater from the odor hot-spot, sulfide inorganic oxidation rates were approximately 12 times faster than in the aerobic wastewater.

AB - Laboratory experiments were conducted to investigate the kinetics of aerobic chemical and biological oxidation of selected odorous volatile sulfur compounds (VSCs) by wastewater and biofilm from sewers. The VSCs included methyl mercaptan (MeSH), ethyl mercaptan (EtSH), dimethyl sulfide (DMS) and total inorganic sulfide, which have all been reported as the main constituents of foul sewer gas. Samples of wastewater and biofilm for the experiments were obtained from two locations that differed significantly with respect to the occurrence of VSCs. One location represented an odor hot-spot downstream of a force main and the other was a gravity sewer transporting young aerobic wastewater. The kinetics of VSC oxidation for both wastewater and suspended biofilm samples followed a first-order rate equation. The average values of the reaction rate constants demonstrated the following order of reactivity: total inorganic sulfide >EtSH≥MeSH>>DMS. Except for total inorganic sulfide oxidation in wastewater, kinetic parameters for each VSC were of similar magnitude for the two locations. In the wastewater from the odor hot-spot, sulfide inorganic oxidation rates were approximately 12 times faster than in the aerobic wastewater.

KW - Odor

KW - Oxidation

KW - Volatile sulfur compounds

KW - Wastewater

KW - Odor

KW - Oxidation

KW - Volatile sulfur compounds

KW - Wastewater

U2 - 10.2166/wst.2013.471

DO - 10.2166/wst.2013.471

M3 - Journal article

VL - 68

SP - 2330

EP - 2336

JO - Water Science and Technology

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SN - 0273-1223

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