Kinetics of oxygenation of reduced sulfur species in aqueous solution

O’Brien, Dennis J.; Birkner, Francis B.

doi:10.1021/es60135a009

Cited by 169 publications

(125 citation statements)

References 8 publications

Supporting

Mentioning

114

Contrasting

Unclassified

Order By: Relevance

“…In brief, dissolved and solid phase sulfur species (with the exception of dissolved sulfate) were analysed by standard spectrophotometric techniques, with appropriate pre-treatment to avoid potential interferences between different sulfur species (e.g. Chen and Morris, 1972;O'Brien and Birkner, 1977;Pyzik and Sommer, 1981). Dissolved sulfide was measured on filtered (0.2 µm) samples and total sulfide (i.e.…”

Section: Chemical Analysismentioning

confidence: 99%

A revised scheme for the reactivity of iron (oxyhydr)oxide minerals towards dissolved sulfide

Poulton

Krom

Raiswell

2004

Geochimica et Cosmochimica Acta

531

443

View full text Add to dashboard Cite

The reaction between dissolved sulfide and synthetic iron (oxyhydr)oxide minerals was studied in artificial seawater and 0.1 M NaCl at pH 7.5 and 25°C. Electron transfer between surface-complexed sulfide and solid phase Fe(III) results in the oxidation of dissolved sulfide to elemental sulfur, and the subsequent dissolution of the surface-reduced has an effect on mineral reactivity. However, these effects are unlikely to have a significant impact on the relative reactivities of the two mineral groups.4

show abstract

Section: Chemical Analysismentioning

confidence: 99%

A revised scheme for the reactivity of iron (oxyhydr)oxide minerals towards dissolved sulfide

Poulton

Krom

Raiswell

2004

Geochimica et Cosmochimica Acta

531

443

View full text Add to dashboard Cite

show abstract

“…The linear regression formula is ln(C/C 0 ) = -0.54t, (7) and the first-order rate coefficient kj is 0.54/s. …”

Section: Determination Of the Kinetics Of H 2 S Oxidation In A Biofiltermentioning

confidence: 99%

Biofiltration Control of Hydrogen Sulfide 2. Kinetics, Biofilter Performance, and Maintenance

Yang

Allen

1994

Air & Waste

View full text Add to dashboard Cite

The kinetics of H 2 S oxidation in a biofilter were evaluated and the reaction rates determined to be first-order at low concentrations (<200 ppm), zero-order at high concentrations (>400 ppm), and fractional-order in the intermediate concentration range for H 2 S in the inlet waste gas. The overall performance of the biofilter system and changes in compost properties were investigated for 200 days of operation. The compost biofiiter showed good buffering capacities to variations in gas flow rate and pollutant (H 2 S) loading impacts. Hydrogen sulfide removal efficiencies exceeding 99.9% were consistently observed. System acidification and sulfate accumulation were identified as inhibitors of required biological activity. Routine washing of the compost effectively mitigated these deficiencies. System upset was determined to be caused by compost dry-out or system overloading. Methods were developed to provide for recovery of contaminated filter material.

show abstract

“…The calculated fit follows the experimental data reasonably well, implying that the dissociation of PbS to form Pb 2 + and s 2 -may be the rate determining step in dissolution of PbS. However, reaction of s 2 -with (h to form S03 2 -, S203 2 -, and S04 2 -has been shown to behave according to a first order rate law when 02 is in excess and proceeds with a rate at pH 4 that is similar to the PbS dissolution reaction (O'Brien and Birkner, 1977). Therefore, the rate of s 2 -reaction may influence the net conversion of reactants to products.…”

Section: Kinetic Modelsmentioning

confidence: 74%