Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Internal phosphorus loading from bottom sediments of a shallow preliminary reservoirThe aim of the studies done in a shallow preliminary reservoir (western Poland) was to determine the intensity and seasonal variability of phosphorus release from bottom sediments. Ex situ studies were done using intact sediment cores taken in succeeding seasons at 3 research stations. The highest phosphorus loading was observed in spring (May and April), both in 2005 and 2006. The range of loading was between 23.7 and 66.6 mgP m

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Internal phosphorus loading as the response to complete and then limited sustainable restoration of a shallow lake

Annales de Limnologie - International Journal of Limnology ◽

10.1051/limn/2019003 ◽

2019 ◽

Vol 55 ◽

pp. 4

Author(s):

Katarzyna Kowalczewska-Madura ◽

Renata Dondajewska ◽

Ryszard Gołdyn ◽

Joanna Rosińska ◽

Stanisław Podsiadłowski

Keyword(s):

Bottom Sediments ◽

Littoral Zone ◽

Ecological Status ◽

Phosphorus Release ◽

Phosphorus Loading ◽

P Release ◽

Spatial Changes ◽

Iron Sulphate ◽

Internal Phosphorus Loading ◽

Profundal Zone

The urban Swarzędzkie Lake, into which sewage had been diverted many years ago, was still characterised by low ecological status. Three restoration methods were used in order to improve the water quality, i.e. aeration of the waters overlying the bottom sediments, inactivation of phosphorus in the water column with iron sulphate and magnesium chloride and biomanipulation with pike stocking. The aim of the research was to define seasonal and spatial changes of phosphorus internal loading from bottom sediments and to compare this with previous years. We also considered changes in the process of P release when the restoration treatments were limited after 3 yr from 3 methods to 1 method. The highest phosphorus release from bottom sediments was found in the profundal zone, where in summer periods it would reach up to 29.2 mgP m−2 day−1. The lowest P release was observed in the littoral zone, down to a depth of 3 m, where it did not exceed 10.0 mgP m−2 day−1. 31% of the whole load of P released from the bottom sediments was originated from this zone. The research showed an increase of phosphorus release in the first years of restoration treatment and a systematic decrease at all stations in the following years.

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Internal Phosphorus Loading from the Bottom Sediments of a Dimictic Lake During Its Sustainable Restoration

Water Air & Soil Pollution ◽

10.1007/s11270-018-3937-4 ◽

2018 ◽

Vol 229 (8) ◽

Cited By ~ 14

Author(s):

Katarzyna Kowalczewska-Madura ◽

Renata Dondajewska ◽

Ryszard Gołdyn ◽

Anna Kozak ◽

Beata Messyasz

Keyword(s):

Bottom Sediments ◽

Phosphorus Loading ◽

Internal Phosphorus Loading

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Internal phosphorus loading in selected lakes of the Cybina River valley

Oceanological and Hydrobiological Studies ◽

10.2478/v10009-010-0035-3 ◽

2010 ◽

Vol 39 (3) ◽

Cited By ~ 2

Author(s):

Katarzyna Kowalczewska-Madura ◽

Renata Dondajewska ◽

Ryszard Gołdyn

Keyword(s):

Bottom Sediments ◽

River Valley ◽

Phosphorus Loading ◽

Internal Phosphorus Loading

Internal phosphorus loading in selected lakes of the Cybina River valleyThe aim of this study was to assess the ability of bottom sediments to release or accumulate phosphorus.

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Relationship between Anaerobic Sediment Phosphorus Release Rates and Sedimentary Phosphorus Species

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f89-055 ◽

1989 ◽

Vol 46 (3) ◽

pp. 416-419 ◽

Cited By ~ 19

Author(s):

M. L. Ostrofsky ◽

D. A. Osborne ◽

T. J. Zebulske

Keyword(s):

Regression Analysis ◽

Multiple Regression Analysis ◽

Multiple Regression ◽

Phosphorus Release ◽

Phosphorus Loading ◽

Sediment Characteristics ◽

Release Rates ◽

Phosphorus Species ◽

Internal Phosphorus Loading ◽

High Concentrations

Rates of anaerobic phosphorus release from the sediments of 57 lakes of varying trophy and sediment characteristics were measured under controlled laboratory conditions to test the hypothesis that internal phosphorus loading was a function of sediment phosphorus species. Simple regression analyses indicated that no single species can predict more than 18% of the variability in release rates. Multiple regression analysis using both water and sediment characteristics were able to explain 51% of the variation. A model based on stepwise multiple regression analysis suggests that lakes most prone to high rates of internal phosphorus loading will be alkaline with high concentrations of spring overturn total phosphorus, and with sediments characterized by high concentrations of iron-bound phosphorus, and low concentrations of organic matter.

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Spatial Variation in the Distribution of Phosphorus Species in the Surficial Sediments of Canadohta Lake, Pennsylvania; Implications for Internal Phosphorus Loading Estimates

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f91-031 ◽

1991 ◽

Vol 48 (2) ◽

pp. 233-237 ◽

Cited By ~ 9

Author(s):

M. L. Ostrofsky ◽

G. G. McGee

Keyword(s):

Organic Phosphorus ◽

Sediment Quality ◽

Phosphorus Release ◽

Phosphorus Loading ◽

Published Data ◽

Phosphorus Species ◽

Variable Nature ◽

Internal Phosphorus Loading ◽

Organic Matter Loss ◽

Loading Estimates

The concentrations of total, loosely sorbed, metal-bound, calcium-bound, and organic phosphorus, iron, and organic matter (loss on ignition) were determined for 71 surface sediment samples from Canadohta Lake, Pennsylvania. The results indicate that lake sediments can be highly variable with respect to these parameters. Most of these parameters were highly intercorrelated, and some general patterns appear to exist based on these and previously published data. Given the highly variable nature of sediment quality, particularly among these parameters which have been shown to be good predictors of sediment phosphorus release rates, estimates of internal phosphorus loading based on a few incubated cores taken from the deepest area of a lake may contain serious errors. We recommend that sediment heterogeneity be assessed in order to determine an appropriate number and distribution of cores to be incubated for internal loading estimates.

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Ferric Nitrate Suppresses Internal Phosphorus Loading in Municipal River

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.393-395.1242 ◽

2011 ◽

Vol 393-395 ◽

pp. 1242-1246

Author(s):

Jian Jun Huang ◽

Yu Hong Li ◽

Ya Jie Gao

Keyword(s):

Electron Acceptor ◽

River Sediment ◽

Phosphorus Release ◽

Nitrogen Budget ◽

Phosphorus Loading ◽

Ferric Nitrate ◽

Laboratory Studies ◽

Overlying Water ◽

Internal Phosphorus Loading

The application of nitrate is an accepted procedure to manage eutrophication municipal rivers by controlling the phosphorus release from sediments into overlying water and offering electron acceptor for microorganism metabolism. In situ laboratory studies were carried out in simulated reactors to evaluate the potential of ferric nitrate for remediation municipal river sediment. Ferric nitrate could greatly improve the ability of bio-treatment properties for sediment. Two dose remediation experiment of ferric nitrate (70g and 35g per square meter) was carried out lasting 28 weeks. Observations showed that ferric nitrate could suppressed the release of phosphorus from the sediments. At the same time the TN concentration could reduce to common level compared to blank reactor by denitrification. As a whole the dose of 35g per square meter ferric nitrate is better. The results suggest that knowledge of a municipal river’s nitrogen budget may be a useful tool in the design of municipal river remediation efforts.

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Role of Internal Phosphorus Loading in Two Shallow, Productive Lakes in Alberta, Canada

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f84-101 ◽

1984 ◽

Vol 41 (6) ◽

pp. 845-855 ◽

Cited By ~ 64

Author(s):

E. T. Riley ◽

E. E. Prepas

Keyword(s):

Surface Water ◽

Deep Water ◽

Laboratory Experiments ◽

Water Exchange ◽

Sediment Cores ◽

Internal Loading ◽

Phosphorus Loading ◽

Quantitative Estimates ◽

Internal Phosphorus Loading

The contribution of internal loading from the sediments to the total phosphorus (TP) budget and to the [TP] in the surface water was investigated from May to November in Nakamun and Halfmoon lakes, Alberta. During the summer, Nakamun Lake was intermittently stratified and Halfmoon Lake was weakly, thermally stratified. During the stratified periods, water overlying the sediments was anoxic, TP levels increased in the deep water, and sediments were the main source of TP, contributing 1468 and 147 kg of TP to Nakamun and Halfmoon lakes, respectively. During these same periods, internal loading to Nakamun and Halfmoon lakes (12.7 and 15.6 mg∙m−2∙d−1, respectively) were slightly higher than the rates predicted from laboratory experiments on sediment cores (9.7 and 7.2 mg∙m−2∙d−1, respectively). Quantitative estimates of vertical water exchange in Nakamun Lake and in-lake TP budgets for both lakes indicated that phosphorus released from the sediments was transported to the surface water during mixing. After eight of the nine mixing events that immediatley followed stratified periods, [TP] increased 3–43% and 31–52% in the surf ace water of Nakamun and Halfmoon lakes, respectively.

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Effects of oxygen concentration on phosphorus release from reflooded air-dried wetland sediments

Marine and Freshwater Research ◽

10.1071/mf9941319 ◽

1994 ◽

Vol 45 (7) ◽

pp. 1319 ◽

Cited By ~ 43

Author(s):

S Qiu ◽

AJ McComb

Keyword(s):

Early Stage ◽

Sediment Cores ◽

Lake Management ◽

Inorganic Phosphorus ◽

Phosphorus Release ◽

Phosphorus Loading ◽

Management Technique ◽

Anaerobic Conditions ◽

Air Drying ◽

North Lake

Intact sediment cores from North Lake (Perth, Western Australia) were air-dried for 40 days, reflooded with lake water and incubated at 20°C. Under aerated conditions, air-drying increased phosphorus release. When aeration was stopped, air-dried sediments continued to release P into the water, but the rate was much slower than that in the early stage of the aeration. The results suggest a gradual depletion of labile phosphorus from the dried sediments. Under anaerobic conditions, the phosphate release was also markedly higher for air-dried sediments than for the 'wet' controls. The accumulation of soluble inorganic phosphorus during air-drying, owing to breakdown of organic material and a drying-induced decrease in phosphate sorption, may be the cause of release on rewetting. The results suggest that drought-induced sediment dehydration in natural wetlands may be followed by a significant increase of internal phosphorus loading under both aerobic and anaerobic conditions. Care must therefore be taken in using drawdown as a lake management technique to improve water quality.

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