A reaction chamber for study of interactions between sediments and water under conditions of static or continuous flow☆

Gunnison, Douglas; Brannon, James M.; Smith, Isaac W.; Burton, G.A.; Preston, Karen M.

doi:10.1016/0043-1354(80)90020-2

Cited by 13 publications

(9 citation statements)

References 5 publications

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“…The simulation methodology used in this study represents modifications of methods suggested by Gunnison et al (1980). The principal departure from previously suggested methods involves the use of many small reaction chambers for each reservoir simulation site as opposed to one large chamber for each site.…”

Section: Simulation and Microcosm Sample Preparation Methodsmentioning

confidence: 99%

“…Once a microcosm has become anaerobic, any air which leaks ~nto the system will be toxic to anaerobic bacteria and thus affect simulation results. Large chambers are not only difficutt to effectively seal, they also experience chemical microstratification (Gunnison et al, 1980) which requires mixing of the microcosm water column. The smaller chambers used in this study are easy to seal and, since all of the microcosm water column is removed during sampling, the problem of microstratification is reduced,…”

Section: Behaviour Of Sites 1 and 4 Microcosmsmentioning

confidence: 99%

“…By making direct chemical measurements on a quasi-natural system, data more related to actual reservoir conditions may be obtained. Gunnison et al (1980), have proposed a simulation technique that relies on 250 L reaction vessels, and Messer et al (1984) have used a simulation method to estimate nutrient release rates from sediment cores from Flaming Gorge Reservoir, Utah, U.S.A. Thus, sedimentwater simulation techniques may be applied to planned or existing reservoirs (or lakes) to study a variety of chemical processes associated with naturaJ sedimentwater interactions or to evaluate the effects of perturbations to a natural system.…”

Section: Introductionmentioning

confidence: 99%

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Predicting water quality data in an unfilled reservoir using microcosm sediment-water simulation

Craft

1985

Environ Geochem Health

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The technique of microcosm sediment-water simulation was used to obtain predictive water quality data for the proposed Jordanelle Reservoir, Heber City, Utah. Sediment-water microcosms were prepared for four sites located in the north arm of the reservoir basin, including two sites located in an abandoned acid mine tailings pond. Data obtained from the tailings pond microcosms indicated that low pH water and high trace metal concentrations may exist in this area of the reservoir. These data suggested that the tailings material should be contained or removed prior to reservoir filling. Other sites in the reservoir basin exhibited water quality considered normal for reservoirs of similar elevation and basin geology. Near the proposed dam, anaerobic conditions could develop rapidly due to available concentrations of organic carbon, and the subsequent release of Zn, Fe, and Mn may pose a water quality problem. At the sampling site near Keetley, simulation data indicated that anaerobic conditions will not develop as quickly or be as severe as conditions expected near the dam. Overall, the availability of nitrogen and phosphorus in the Provo River and Jordanelle sediments indicated that problems with algal blooms may exist in the reservoir. Also presented is a brief discussion of the advantages and disadvantages associated with microcosm sediment-water simulation.

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Section: Simulation and Microcosm Sample Preparation Methodsmentioning

confidence: 99%

Section: Behaviour Of Sites 1 and 4 Microcosmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Predicting water quality data in an unfilled reservoir using microcosm sediment-water simulation

Craft

1985

Environ Geochem Health

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“…The reader should consult these authors for additional details. Many examples of the processes described here are given in the accompanying figures; most of these are taken from our own work using soil-water reaction chambers with continuous flow as described III Gunnison et al (1979, 1980b (Fig. 2).…”

Section: Shifts In Microbial Community Structure and Functionmentioning

confidence: 98%

“…In this system, water within reactor unit is continuously recirculated while inflows are pumped in and outflows are removed by gravity. For details of this system and its operation, see Gunnison et al (1980b).…”

Section: Shifts In Microbial Community Structure and Functionmentioning

confidence: 99%

Chemistry and microbiology of newly flooded soils: relationship to reservoir-water quality

Gunnison¹,

Engler²,

Patrick

1985

Microbial Processes in Reservoirs

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Abstract. Upon filling, a new reservoir undergoes several years of intensive biological and chemical transformations resulting from the decomposition of flooded organic matter together with reductive reactions of inorganic portions of the soil. Decomposition of flooded substrates provides a source of food for valuable fish species, but also lowers dissolved oxygen. Microbial interactions with flooded soil components result in release of algal growth promoting nutrients plus various metals and sulfide, making achievement of water quality objectives difficult.The work presented here summarizes the result of approaches developed to determine the effects of microbial processes occurring in flooded soils upon reservoir water quality. Emphasis is placed on the nature of the microbial processes involved, rather than specific microorganisms responsible for the processes. Examples are taken from soil-water interaction studies that simulate newly impounded reservoirs. In addition to an examination of the microbially-mediated release of nitrients and metals from flooded soil, this chapter also describes the effects of temperature and reservoir aging upon oxygen uptake and nutrient regeneration. Emphasis is also given to the unique hydrodynamic properties of reservoirs; these properties determine both the fate and the impact of products released by microbial activity.

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Interactions of reservoir microbiota: eutrophication — related environmental problems

Lanza¹,

Silvey

1985

Microbial Processes in Reservoirs

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A reaction chamber for study of interactions between sediments and water under conditions of static or continuous flow☆

Cited by 13 publications

References 5 publications

Predicting water quality data in an unfilled reservoir using microcosm sediment-water simulation

Predicting water quality data in an unfilled reservoir using microcosm sediment-water simulation

Chemistry and microbiology of newly flooded soils: relationship to reservoir-water quality

Interactions of reservoir microbiota: eutrophication — related environmental problems

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