Oxygen Consumption of River Muds

Edwards, R. W.; Rolley, H. L. J.

doi:10.2307/2257562

Cited by 153 publications

(62 citation statements)

References 18 publications

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“…Fair, Moore, and Thomas (1941) concluded that the oxygen demand of sludge deposits was controlled by process 2 and that process 3 was relatively unimportant. The relative importance of processes 1 and 2 may be seen qualitatively from an experiment of Edwards and Rolley (1965) in which the DO consumption rate of a mud sample increased approximately sixfold when the sample began to scour. Similarly Brown and Clark (1968) reported large decreases in the DO concentrations during dredging operations in a tidal estuary.…”

Section: Bottom Deposits Ks and Mmentioning

confidence: 99%

“…On the other hand, Edwards and Rolley (1965) found that the DO consumption rate was independent of the deposit depth for depths greater than 2 cm, and McDonnell and Hall (1969) concluded that the consumption rate was essentially independent of the sample depth.…”

Section: Bottom Deposits Ks and Mmentioning

confidence: 99%

“…Edwards and Rolley (1965), however, found that the DO consumption rate was dependent on the DO concentration in the overlying water according to (124) where bi is 0.45 for the muds studied. This relation was valid for DO concentrations in the range from 2 to 8 mg/1 but was not satisfactory for muds containing large populations of midge larvae.…”

Section: Bottom Deposits Ks and Mmentioning

confidence: 99%

See 2 more Smart Citations

Reaeration in open-channel flow

Bennett¹,

Rathbun²

1972

Professional Paper

148

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Section: Bottom Deposits Ks and Mmentioning

confidence: 99%

Section: Bottom Deposits Ks and Mmentioning

confidence: 99%

Section: Bottom Deposits Ks and Mmentioning

confidence: 99%

See 1 more Smart Citation

Reaeration in open-channel flow

Bennett¹,

Rathbun²

1972

Professional Paper

148

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“…But Edwards and Rolley ( 1965) found no correlation between the rate of total oxygen consumption by intact sediment cores and dehydrogenase activity; it is not clear how their sediment samples were taken for dehydrogenase assay, but presumably they were from the top 2-cm layer of the sediment cores. The discrepancy between the findings of Edwards and Rolley ( 1965) and those of Ford et al (1966) and Stevenson (1959) may be the result of differences in metabolic types of the samples or in the techniques by which oxygen uptake was measured.…”

Section: Distributionmentioning

confidence: 93%

“…Lenhard (1956) first developed the use of TTC for the quantitative determination of dehydrogenase activity of soil microorganisms. Lenhard et al ( 1962Lenhard et al ( ,1965, Bucksteeg (1966), Ford et al (1966) and Edwards and Rolley (1965) have used the method for assaying dehydrogenase activity in sediments and activated sludge. These workers have demonstrated that total dchydrogenase activity as measured by the amount of formazan produced from TTC is an easily measured indication of oxidative capacity in anaerobic systems.…”

mentioning

confidence: 99%

Anaerobic Metabolism in Lake Washington Sediments1

Pamatmat

Bhagwat

1973

Limnology & Oceanography

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A method of measuring the dehydrogenasc activity of sediments at 10°C was calibrated by direct microcalorimetry at the same temperature. Field measurements of dehydrogenase activity of sediments in Lake Washington were converted to rates of metabolic heat release by means of the significant regression of dehydrogenase activity on metabolic heat release. Simultaneous field measurements at 10°C of oxygen uptake by undisturbed sediment cores were converted to rates of metabolic heat release by the factor 4.8 cal liberated per milliliter of oxygen consumed.Dehydrogenase activity varies from place to place and differs between layers of the same core. Although there is a general trend of decreasing activity with sediment depth, some subsurface layers have relatively high activity. Dehydrogenase activity, which was detected down to the deepest layers of the sediment cores, 21 to 31 cm, appears to be more a function of plankton remains than of total organic carbon in the sediment. The integrated metabolic heat release based on dchydrogenase activity of the entire core was invariably greater than the metabolic heat release calculated from the rates of oxygen uptake. Thus, it appears that the rate of total oxygen uptake by the sediment surface underestimates benthic community metabolism in the sediment column.A common measure of benthic community metabolism is the rate of uptake of dissolved oxygen by the sediment surface from the overlying water. The rate of respiratory uptake of oxygen is estimated by determining the difference between the rates of total oxygen consumption and residual oxygen uptake after poisoning the overlying water. If total oxygen uptake by the sediment surface is an integrated measure of metabolism in the sediment column (Teal and Kanwisher 1961) , oxygen consumption due to the abiotic oxidation of reduced metal ions, sulfides, and other reduced substances in the sediment should represent

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Sedimentchemische Untersuchungen in Küstengewässern der DDR. Teil 12: Untersuchungen zur Phosphatfreisetzung und zur Sauerstoffzehrung an der Sediment/Wasser‐Kontaktzone in flachen eutrophen Küstengewässern

Baader

Schlungbaum

1982

Acta hydrochim. hydrobiol.

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Literaturiiberblick, MeBmoglichkeiten und AutgabenstellungUntersuchungen zur Ermittlung der Sauerstoffzehrung a n der Sedimentoberfliiche und der damit in der Regel gekoppelten Niihrstofffreisetzung sind in der Vergangenheit fur verschiedene Gewassertypen sehr hiiufig durchgefuhrt worden (vgl. dazu ausgewahlte Daten in Tab. 1 und 2). Fur die Messung der sauerstoffzehrenden Prozesse (gleich Sauerstoffzehrungspotenz = Sedimentzehrung oder auch = Sedimentaktivitiit), also der Summe der Sauerstoff benotigenden chemischen und biologischen Reaktionen, besitzen sowohl die Laboratoriumsmethoden als auch die durch die Entwicklung elektrochemischer MeSmoglichkeiten mit Sauerstoffelektroden immer stiirker a n Bedeutung gewinnenden in situ-Verfahren Vor-und Nachteile. So kann bei Laboratoriumsmessungen mit der modifizierten BSB-Verdunnungsmethode nach CASPERS (vgl. RUHLE, 1966

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Oxygen Consumption of River Muds

Cited by 153 publications

References 18 publications

Reaeration in open-channel flow

Reaeration in open-channel flow

Anaerobic Metabolism in Lake Washington Sediments1

Sedimentchemische Untersuchungen in Küstengewässern der DDR. Teil 12: Untersuchungen zur Phosphatfreisetzung und zur Sauerstoffzehrung an der Sediment/Wasser‐Kontaktzone in flachen eutrophen Küstengewässern

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