Laboratory evaluation of kinetic parameters for lake sediment denitrification models

Messer, Jay J.; Brezonik, Patrick L.

doi:10.1016/0304-3800(84)90064-4

Cited by 30 publications

(23 citation statements)

References 11 publications

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“…Zero order kinetics has been observed when NO 3 -N concentrations exceeded biological demand of the system, while first order decay kinetics have been observed when NO 3 -N concentrations are below the biological demand of the system [51]. Therefore, the model ultimately interpolates between a zero order and first order decay models.…”

Section: Efficiency Loss (El) Modelmentioning

confidence: 99%

Comparison of Four Nitrate Removal Kinetic Models in Two Distinct Wetland Restoration Mesocosm Systems

Messer

Burchell

Bírgand

2017

Water

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Abstract:The objective of the study was to determine the kinetic model that best fit observed nitrate removal rates at the mesocosm scale in order to determine ideal loading rates for two future wetland restorations slated to receive pulse flow agricultural drainage water. Four nitrate removal models were investigated: zero order, first order decay, efficiency loss, and Monod. Wetland mesocosms were constructed using the primary soil type (in triplicate) at each of the future wetland restoration sites. Eighteen mesocosm experiments were conducted over two years across seasons. Simulated drainage water was loaded into wetlands as batches, with target nitrate-N levels typically observed in agricultural drainage water (between 2.5 and 10 mg L −1 ). Nitrate-N removal observed during the experiments provided the basis for calibration and validation of the models. When the predictive strength of each of the four models was assessed, results indicated that the efficiency loss and first order decay models provided the strongest agreement between predicted and measured NO 3 -N removal rates, and the fit between the two models were comparable. Since the predictive power of these two models were similar, the less complicated first order decay model appeared to be the best choice in predicting appropriate loading rates for the future full-scale wetland restorations.

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Section: Efficiency Loss (El) Modelmentioning

confidence: 99%

Comparison of Four Nitrate Removal Kinetic Models in Two Distinct Wetland Restoration Mesocosm Systems

Messer

Burchell

Bírgand

2017

Water

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“…Lakes received 27-65% of their TN loading from their surrounding catchments, in spite of apparent N limitation of terrestrial systems. Denitrification was strongly negatively correlated with anoxic factor, or temporal degree of surficial sediment anoxia, suggesting that denitrification is limited directly by the availability of NO3 and indirectly by the availability of 02 (Messer & Brezonik 1984;Seitzinger 1988).…”

Section: Discussionmentioning

confidence: 92%

“…These methods provide information on controlling environmental factors (Messer & Brezonik 1984), on spatial variation in rates within a lake, or on short-term temporal variation in rates (Keeney et al 1971;Chan & Campbell 1980;Messer & Brezonik 1983;Seitzinger 1988). Lake denitrification has also been estimated using the mass-balance approach, i.e.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen mass balances and denitrification rates in central Ontario Lakes

1993

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Abstract. Nitrogen mass balances for seven unproductive lakes and 20 forested catchments in central Ontario were measured between 1977 and 1989. Average annual lake denitrification rates calculated with the N/P ratio method were strongly correlated with summer anoxic factor (extent of surficial sediment anoxia) whereas denitrification rates calculated with a 210 Pb sediment N accumulation method were poorly correlated with the anoxic factor suggesting that the N/P method is superior. Substantial denitrification occurred in all lakes -an average of 36% of TN inputs or 75% of the net gain. On a regional area-weighted basis, 67% of bulk atmospheric TN deposition was stored or denitrified terrestrially, 12% was denitrified in lakes, 4% was stored in lake sediments, and 17% was exported from lakes. N/P ratios were generally less in streams than in precipitation suggesting preferential N retention in catchments, whereas the N/P ratios in lake outputs were slightly higher than lake input ratios, suggesting preferential P retention in lakes. This is consistent with the notion that P-limited lakes can exist adjacent to N-limited forests.

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“…Other investigators (Messer & Brezonik, 1984;Nedwell, 1982;Van Kessel, 1977a) have described the effect of concentration on flux in terms of a rate-saturation equation. Half-saturation concentrations have been found in the range 3 to 50 mg L -'.…”

Section: Discussionmentioning

confidence: 99%

“…These observations fit the empirical model F = F. , (1) * which F ' release kg NH, + m-' day-'), 'ko is release rat,'4 20 o C, 0 mg L -' DO, T is temperature (' C), DO is dissolved oxygen (mg L-'), Bis a constant that expresses enhancement of release by temperature, and a (L mg-') is a constant that expresses suppression of release by DO. Sediment NO, -flux is enhanced by high temperature (Jenkins & Kemp, 1984;Messer & Brezonik, 1984;Seitzinger et al, 1984;Klapwijk & Snodgrass, 1982), by low DO (Van Kessel, 1977a), and by high NO, -concentration in the water (Messer & Brezonik, 1984;Nedwell, 1982;Van Kessel, 1977a). These observations tit the empirical model F = a Cw fJTe20 eaDo (2) in which 'a' (mm day-') is a constant that expresses enhancement of uptake due to concentration, Cw is NO, -concentration in water (mg L -' ) and the remaining parameters are as defined for NH, + .…”

Section: Empirical Modelsmentioning

confidence: 99%

Measured and modelled effects of temperature, dissolved oxygen and nutrient concentration on sediment-water nutrient exchange

Cerco

1989

Hydrobiologia

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Empirical models of sediment-water fluxes of NH, + , NO3 -and POa3 -were formed based on published reports. The models were revised and parameters evaluated based on laboratory incubations of sediments collected from Gunston Cove, VA. Observed fluxes ranged from -18 (sediment uptake) to 276 (sediment release) mg NH,+ me2 day-', -17 to -509mgNO,-mp2dayy1, and -16.4 to 8.9 mg POd3-me2 day-'. The model and observations indicated release of NH,+ was enhanced by high temperature and by low DO. Uptake of NO, -was enhanced primarily by high NO, -concentration and to a lesser extent by high temperature and by low DO. Direction of POa3-flux depended on concentration in the water. Release was enhanced by low DO. No effect of temperature on POA3 -flux was observed.

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Laboratory evaluation of kinetic parameters for lake sediment denitrification models

Cited by 30 publications

References 11 publications

Comparison of Four Nitrate Removal Kinetic Models in Two Distinct Wetland Restoration Mesocosm Systems

Comparison of Four Nitrate Removal Kinetic Models in Two Distinct Wetland Restoration Mesocosm Systems

Nitrogen mass balances and denitrification rates in central Ontario Lakes

Measured and modelled effects of temperature, dissolved oxygen and nutrient concentration on sediment-water nutrient exchange

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