Evaluation of a water quality model (CE-QUAL-R1) using data from a small Wisconsin reservoir

Wlosinski, Joseph H.; Collins, Carol D.

doi:10.1016/0304-3800(85)90058-4

Cited by 11 publications

(3 citation statements)

References 8 publications

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“…This may be the reason for the high similarity of microorganisms in the dry season. Many studies have pointed out that in the rainy season, affected by rainfall recharge, the water inflow from the upstream of the reservoir increases (Wlosinski and Collins, 1985;Knoll et al, 2016), the water storage of the reservoir increases, and the water exchange rate increases, which may be the reason for the low microbial similarity of each sample in the rainy season.…”

Section: Sample Correlation Analysismentioning

confidence: 99%

Research of Water Quality Safety of Water Source Reservoir in Water Supply Project——a case Study of Mopanshan Reservoir

Hou,

Zheng,

Liu

et al. 2024

Preprint

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Water reservoirs play a vital role in ensuring the drinking water health of urban residents. In order to study the water quality safety of water source reservoirs in water supply projects, the physical and chemical indexes of water quality in Mopansan reservoir was analyzed. The microbial diversity, community structure characteristics were analyzed by high-throughput sequencing technology. The results showed that the main exceeding standard indexof water quality of Mopan- shan Reservoir in 2022 was total nitrogen(TN). The microbial communities in the water body and sediments in the reservoir center and before the dam were com- posed of 380 genera. The microbial diversity in sediment was higher than that in water. The influence order of water quality factors on microbial community was DO > CODcr > TN > Mn2 + > Fe2+. Potential pathogenic microorganisms were detected in water and sediment samples. Although no coliform bacteria were detected, disinfection as a water supply source was still necessary. Redundancy analysis (RDA) showed that the main water quality factors affecting microbial community structure were DO and TP in the dry season, but the pattern was not obvious in the wet season. Sodium hypochlorite has a good disinfection effect on tap water and can fully ensure water quality safety.

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Section: Sample Correlation Analysismentioning

confidence: 99%

Research of Water Quality Safety of Water Source Reservoir in Water Supply Project——a case Study of Mopanshan Reservoir

Hou,

Zheng,

Liu

et al. 2024

Preprint

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“…The CE-QUAL-R1 model was evaluated using data collected at a small eutrophic reservoir near Spring Valley, Wisconsin, U.S.A. (Wlosinski & Collins, 1985). Weekly or biweekly data collected in 1981 and 1982 were used as a basis for calibration and validation simulations.…”

Section: Water Quality Modeling and Reservoir Managementmentioning

confidence: 99%

“…Table 1. CE-QUAL-R1 (Corps of Engineers, QUAL series model for 1-D Reservoirs) is a mathematical model by Waterways Experiment Station, from the U.S. Army Corps of Engineers (Wlosinski & Collins 1985;USACE/ WES, 1986). Its structure is characterized by a onedimensional vertical approach applied to reservoirs, conceptualised as a sequence of horizontal well-mixed layers which thickness depend on the inflow-outflow water balance (Figure 2).…”

Section: Pirapamamentioning

confidence: 99%

Mathematical modelling of hydrodynamics and water quality in a tropical reservoir, northeast Brazil

Araujo¹,

Costa²,

Aureliano³

et al. 2008

Braz. J. Aquat. Sci. Technol.

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The Pirapama system in Pernambuco, Northeast Brazil, is one of the last major sources of adequate water supply in the state. A reservoir was constructed to store water for domestic, agricultural and industrial use. However, the formation of the reservoir pool flooded the marginal vegetation, starting an organic matter mineralization process, which resulted in eutrophication of the waters and depletion of dissolved oxygen concentrations, reaching anoxic conditions near the reservoir bed. This water body is also impacted by upstream inputs of domestic sewage, agricultural run-off and effluents from sugar-cane mills and distilleries. This work applied a one-dimensional vertical approach (CE-QUAL-R1) in order to simulate the formation of the reservoir pool, analysing the different operational alternatives. Eutrophication, anoxia and stratification potentials were studied. Water quality data obtained during 17 months are used to adjust the model rates and parameters. After model calibration-validation, hypothetical operational scenarios were simulated, taking into account different ways for water pumping (outtake elevations) and for discharging outflow excess (spillways or bottom outlet). Strong anoxic conditions (DO concentrations of less than 1.0 mg.L -1 ), associated to high eutrophication levels (high PO 4 and Chlorophyll-a concentrations), were found in all simulated scenarios. Regarding water quality conditions in the reservoir, the use of bottom outlet for reservoir water releases presented better results than the other operational alternatives, since it makes possible releasing anoxic waters from the deepest layers of the reservoir pool. However, in these conditions, the water quality downstream from the reservoir was severely compromised.

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A macrophyte submodel for aquatic ecosystems

Collins

Wlosinski

1989

Aquatic Botany

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Evaluation of a water quality model (CE-QUAL-R1) using data from a small Wisconsin reservoir

Cited by 11 publications

References 8 publications

Research of Water Quality Safety of Water Source Reservoir in Water Supply Project——a case Study of Mopanshan Reservoir

Research of Water Quality Safety of Water Source Reservoir in Water Supply Project——a case Study of Mopanshan Reservoir

Mathematical modelling of hydrodynamics and water quality in a tropical reservoir, northeast Brazil

A macrophyte submodel for aquatic ecosystems

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