Evaluation of Nutrient Release from Sediments of Artificial Lake

Lim, Bo-Mi; Ki, Bo-Min; Choi, Jung Hyun

doi:10.1061/(asce)ee.1943-7870.0000337

Cited by 11 publications

(12 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Many studies have found that the denitrification rate rises with increasing water temperature [43][44][45]. In this study, this pattern appeared to occur between February and June 2015, and no obvious changes occurred from August 2014 to January 2015 ( Figure 2b).…”

Section: The Influence Of Environmental Variables On Denitrification supporting

confidence: 47%

“…The N 2 O flux at the sediment-water interface was then calculated using the difference in N 2 O concentration between the control group and the initial sample. This method is similar to a laboratory-scale benthic chamber [44], which is also an accurate and direct way for determining the N 2 O flux across sediment-water interface in comparison with the gradient method [45].…”

Section: Environmental Variables and N 2 O Measurementmentioning

confidence: 99%

See 1 more Smart Citation

N2O Fluxes and Rates of Nitrification and Denitrification at the Sediment–Water Interface in Taihu Lake, China

Liu

Zhong

Zheng

et al. 2018

Water

View full text Add to dashboard Cite

Because of global concerns regarding pollution and eutrophication in fresh water, China's Taihu Lake has gained attention both for these issues and as a source of nitrous oxide (N 2 O) emissions. In this study, we investigated N 2 O fluxes and nitrification and denitrification rates at the sediment-water interface and analyzed monthly the relationships between these processes in different areas of Taihu Lake over a one-year period. Annual maximum nitrification and denitrification rate and N 2 O flux were observed during June in an algae-dominated area of the lake and measured 17.80, 235.51, and 31.49 µmol N m −2 h −1 , respectively. The nitrification rate ranged from 0 to 1.18 µmol N m −2 h −1 at other sampling sites, with less variation. The denitrification rate showed clear seasonal variation, with lower levels between August and January (0.01-8.57 µmol N m −2 h −1 ; average = 1.49 µmol N m −2 h −1) and a rapid increase between February and July (1.03-235.51 µmol N m −2 h −1 ; average = 41.73 µmol N m −2 h −1).The N 2 O flux ranged from −0.64 to 1.5 µmol N m −2 h −1 , with little variability except for a much higher rate (31.49 µmol N m −2 h −1) in June in algae-dominated areas. N 2 O flux was significantly positively correlated with nitrification and denitrification rates in most lake zones. By comparing the slopes of the regression equations, we found that N 2 O emissions from the sediment-water interface were influenced predominantly by nitrification, suggesting that lower N 2 O fluxes from the sediment-water interface in Taihu Lake are caused primarily by lower nitrification rates.

show abstract

Section: The Influence Of Environmental Variables On Denitrification supporting

confidence: 47%

Section: Environmental Variables and N 2 O Measurementmentioning

confidence: 99%

N2O Fluxes and Rates of Nitrification and Denitrification at the Sediment–Water Interface in Taihu Lake, China

Liu

Zhong

Zheng

et al. 2018

Water

View full text Add to dashboard Cite

show abstract

“…Sediment samples were collected on 5 September 2013 using acrylic cores to observe nutrient movement through the water-sediment interface. The details of the core sampler were explained in a previous research [34]. The bottom water (20 L) was also collected from the same location, filtered through pre-combusted GF/F filters, and stored in dark glass bottles.…”

Section: Benthic Chamber Experimentsmentioning

confidence: 99%

“…Sediments were dominantly composed of sandy loam at depths of 0-5 cm and sand at depths of 5-15 cm. To observe nutrient movement through the water-sediment interface, benthic chamber experiment was carried out [34]. The value of nutrient release fluxes fluctuated throughout the experimental period.…”

Section: Nutrient Release Fluxes From the Sedimentmentioning

confidence: 99%

Contribution of Internal Nutrients Loading on the Water Quality of a Reservoir

Lee

Kim

et al. 2019

Water

Self Cite

View full text Add to dashboard Cite

Sediment plays an important role in the water quality of a lake by acting as both a nutrient source and sink. The amount of phosphorus and nitrogen in the water depends on the internal load from the sediment as well as the external load. To estimate the effects of sediment load on the water quality of a reservoir, we applied a three-dimensional hydrodynamic and transport model based on the benthic chamber experimental results at Euiam Lake, South Korea. As shown in the sensitivity analysis results, the eutrophication period could be significantly extended by a change of phosphorus flux rates from the sediments. The increased phosphorus flux from the sediments intensifies the algal growth of Euiam Lake, which could cause serious algal bloom during spring and fall. This study provides information on nutrient concentrations in the sediment of Euiam Lake, verifies the role of the sediment as a source or sink of nutrients, and evaluates the effect of sediment release of nutrients and contaminants on water quality. This research is a useful tool in determining the effects of internal load in lakes and establishing the operation guideline for sediment management in order to maintain feasible water quality for beneficial use.

show abstract

“…DO more than 3 mg/l. Bomin Lim, et al (2011) makes clear that DO less than 3 mg/l tend release TN and TP in sediment layer, and then triggering eutrophication process. Integration program between 50 m 3 /s capacity of HJV operation (operated once a month) and 80% pollutants reduction can raise the DO from 2 mg/l to be 2,5 -4,0 mg/l in 3 years, and then reach 6-6,5 mg/l in 8 years HJV operation.…”

Section: Organics and Nutrients Calibrationmentioning

confidence: 99%

Dynamic Analysis of The Hollow Jet Valve Operation For Eutrophication Control in Jatiluhur Tropical-Riverine Reservoir, Indonesia

Irianto¹,

Triweko²,

Soedjono³

2014

International Journal of Environment and Resource

View full text Add to dashboard Cite

The efforts for eutrophication control have been conducted in many countries, i.e. physics, chemicals and biology. One of the alternatives is hypolimnetic withdrawal technique using hollow jet valve (HJV). So, the research objective is the application of dynamic numerical model to analyze the affect of HJV to reduce organics and nutrients pollutants in Jatiluhur tropical-riverine reservoir, Indonesia. Research methods are as follow: (1) data collections; (2) analysis of bathymetric maps; (3) dynamic numerical analysis using box volume model, assisted by WASP, and (4) calibration and simulation analyses. Results of numerical analysis shows that HJV operation operated in at 50 m 3 /s, 24 hours every month along 8 years can improve the DO, BOD, TN and TP and chlorophyll-a mainly in lacustrine zone, at Jatiluhur Reservoir. Integration programs between HJV operation and pollutant sources reduction emitted by fish-cages cultured,until 99% compared with existing condition can restore Jatiluhur Reservoir from hypereutrofic to oligotrofic statues, i.e. 3 mg/l O2; less than 0,5 mg/l BOD; 0,6 mg/l of TN; 0,05 mg/l of TP and less than 10 μg/l of Chlorophyll-a.

show abstract

Evaluation of Nutrient Release from Sediments of Artificial Lake

Cited by 11 publications

References 27 publications

N2O Fluxes and Rates of Nitrification and Denitrification at the Sediment–Water Interface in Taihu Lake, China

N2O Fluxes and Rates of Nitrification and Denitrification at the Sediment–Water Interface in Taihu Lake, China

Contribution of Internal Nutrients Loading on the Water Quality of a Reservoir

Dynamic Analysis of The Hollow Jet Valve Operation For Eutrophication Control in Jatiluhur Tropical-Riverine Reservoir, Indonesia

Contact Info

Product

Resources

About