Phosphorus immobilization in Lake Głęboczek following treatment with polyaluminum chloride

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Michał Łopata ◽  
Helena Gawrońska
Keyword(s):  
Total Phosphorus ◽  
Bottom Sediments ◽  
Aluminum Content ◽  
Complete Removal ◽  
Phosphorus Release ◽  
Sorptive Capacity ◽  
Polyaluminum Chloride ◽  
Phosphorus Inactivation ◽  
Interstitial Waters ◽  
Phosphorus Immobilization

Phosphorus immobilization in Lake Głęboczek following treatment with polyaluminum chlorideIn 2001-2003, a survey was conducted of the effectiveness of restoration in the heavily eutrophic polymictic Lake Głęboczek, located in Tuchola. The application of the phosphorus inactivation method with polyaluminum chloride PAX 18 resulted in the complete removal of phosphates, and in a considerable (up to 50-60%) reduction of total phosphorus in the lake water. The sorptive capacity of the bottom sediments was enhanced after the restoration, particularly in the top layer (0-5 cm). An increase of the aluminum content and of mineral forms of phosphorus was observed, mainly the aluminum-bound fraction (at its greatest, by over 330%). The amount of mobile phosphorus in the sediments decreased by 40%. The evidence of the durable immobilization of phosphorus in the aquatic ecosystem was the limited phosphorus release from the bottom sediments. This was confirmed by a significant decrease of total phosphorus in the interstitial waters (from 4-6 mg dm

Total Phosphorus Release from Bottom Sediments in Flowing Water

2012 ◽  
Vol 24 (4) ◽  
pp. 589-594 ◽  
Author(s):  
Kun Zhang ◽  
Peng-da Cheng ◽  
Bao-chang Zhong ◽  
Dao-zeng Wang
Keyword(s):  
Total Phosphorus ◽  
Bottom Sediments ◽  
Phosphorus Release ◽  
Flowing Water

Laboratory Prediction of Phosphorus Release from Deciduous Leaves to Urban Runoff

1995 ◽  
Vol 30 (2) ◽  
pp. 243-246 ◽  
Author(s):  
Heather Culbert ◽  
Robert France
Keyword(s):  
Total Phosphorus ◽  
Empirical Equation ◽  
Urban Runoff ◽  
Phosphorus Release ◽  
Total Export ◽  
Forested Watershed ◽  
Distilled Water ◽  
Trembling Aspen ◽  
Urban Catchments

Abstract In urban centres, leaves are customarily gathered and temporarily stored in large roadside piles prior to their transport to disposal sites. To simulate the release of total phosphorus to urban runoff, birch and trembling aspen leaves were leached with distilled water in laboratory flasks. There was no difference in rate of total phosphorus release between oven-dried and non-dried leaves. An empirical equation developed from these data and knowledge of the litterfall rates for southern Canada indicated that leaves yielded from 11 to 45 mg TP m−2 of forested watershed. This amount represents up to 5% of the total export of total phosphorus from urban catchments and has the potential to exacerbate eutrophication of municipal waters if leaf pickup is not promptly enforced.

Phosphorus release from the bottom sediments of Lake Rusałka (Poznań, Poland)

2010 ◽  
Vol 39 (4) ◽  
Author(s):  
Katarzyna Kowalczewska-Madura ◽  
Ryszard Gołdyn ◽  
Renata Dondajewska
Keyword(s):  
Experimental Research ◽  
Bottom Sediments ◽  
Significant Influence ◽  
Eutrophic Lake ◽  
Phosphorus Release ◽  
Internal Loading ◽  
Release Process

Phosphorus release from the bottom sediments of Lake Rusałka (Poznań, Poland)Experimental research conducted on bottom sediments from the eutrophic Lake Rusałka (Poznań, Poland) indicated that the phosphorus release process has a significant influence on the functioning of the ecosystem. Internal loading was very intense in the deepest part of the lake, where it reached up to 29.84 mg m

scholarly journals Transformation and release of phosphorus from waste activated sludge upon combined acid/alkaline treatment

RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35340-35345 ◽  
Author(s):  
Zhang-Wei He ◽  
Cong-Cong Tang ◽  
Ling Wang ◽  
Ze-Chong Guo ◽  
Ai-Juan Zhou ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Total Phosphorus ◽  
Alkaline Treatment ◽  
Phosphorus Release ◽  
Waste Activated Sludge

Acid-alkaline treatment increased phosphorus release from waste activated sludge, and the potentially recoverable phosphorus accounted for 54.7% of the total phosphorus.

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

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.

scholarly journals Total phosphorus and organic matter content in bottom sediments of lake under restoration measures with iron treatment

2010 ◽  
Vol 10 (3-4) ◽  
pp. 139-145 ◽  
Author(s):  
Katarzyna Kowalczewska-Madura ◽  
Renata Dondajewska ◽  
Ryszard Gołdyn
Keyword(s):  
Organic Matter ◽  
Lake Sediments ◽  
Total Phosphorus ◽  
Bottom Sediments ◽  
Organic Matter Content ◽  
Dry Weight ◽  
Matter Content ◽  
Iron Treatment ◽  
Iron Sulphate ◽  
Restoration Measures

Total phosphorus and organic matter content in bottom sediments of lake under restoration measures with iron treatmentRusałka Lake is a shallow, man-made, strongly eutrophicated reservoir, being a place of recreational activities for Poznan citizens. Restoration measures with the use of iron sulphate were conducted in years 2006-2007. Phosphorus and organic matter concentrations in lake sediments were analyzed in years 2005-2007 at two research stations (profundal and littoral) to determine its changes under the influence of restoration. Greater phosphorus concentrations were noted in profundal (max 1.55 mg P g-1dry weight (DW)) than in littoral (max 0.98 mg P g-1DW). An increase of P amount in sediment was observed after iron treatment. Among phosphorus fractions Res-P dominated, i.e. phosphorus biologically unavailable for organisms. Organic matter content reached 23.1% in profundal, while 14.8% in littoral. Its amount decreased in following years.

Phosphorus release from sediments of a deep wastewater stabilization pond

2000 ◽  
Vol 42 (10-11) ◽  
pp. 265-272 ◽  
Author(s):  
J. F. Ortuño ◽  
J. Sáez ◽  
M. Llorens ◽  
A. Soler
Keyword(s):  
Biological Activity ◽  
Total Phosphorus ◽  
Environmental Changes ◽  
Organic Phosphorus ◽  
Phosphorus Release ◽  
Particulate Phosphorus ◽  
Residual P ◽  
High Ph ◽  
Stabilization Pond ◽  
Sediment Phosphorus

The fractional composition and potential mobility of particulate phosphorus was investigated in sediment from a deep wastewater stabilization pond. The predominant phosphorus fractions were Fe- and Al-bound P (NaOH-RP) and Residual-P (consisting mainly of organic P), which amounted to 35 and 34% of total phosphorus, respectively. A laboratory study was conducted to determine the influence of various environmental parameters (pH, redox conditions, biological activity and temperature) on phosphorus release from lagoon sediment. Phosphorus release was observed under both anaerobic and aerobic conditions. Anaerobic release was about 1.4-5 times greater than aerobic release. Phosphorus release was redox-sensitive and favoured by high pH values, up to 17.4% of total phosphorus being liberated anaerobically and at high pH. Biological activity favoured phosphorus release, since the amount released under non-sterile conditions exceeded that observed under sterile conditions. Sediment phosphorus was fractionated before and after the release experiments. The NaOH-RP fraction was sensitive to pH and redox environmental changes, and was readily released under reduced conditions and at high pH. The mobility of the Residual-P fraction was enhanced in incubations involving biological activity due to the decomposition of the organic matter in the sediments, and NaOH–nRP (organic phosphorus) decreased by up to 45% during the incubation of non-sterile suspensions.

Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Renata Dondajewska
Keyword(s):  
Bottom Sediments ◽  
Seasonal Variability ◽  
Sediment Cores ◽  
Phosphorus Release ◽  
Ex Situ ◽  
Phosphorus Loading ◽  
Internal Phosphorus Loading

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

Effects of Environmental Factors on Phosphorus Release in Sediment from Baihua Lake, China

2012 ◽  
Vol 260-261 ◽  
pp. 912-916 ◽  
Author(s):  
Mei Jin ◽  
Ji Wei Hu ◽  
Xian Fei Huang ◽  
Li Ya Fu ◽  
Jin Luo ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Dissolved Oxygen ◽  
Total Phosphorus ◽  
Sharp Increase ◽  
Ph Value ◽  
Aerobic Condition ◽  
Phosphorus Release ◽  
Anoxic Condition ◽  
Do Concentration ◽  
Effects Of Temperature

This paper reports an investigation regarding the effects of temperature, pH, dissolved oxygen (DO) concentration and agitation on total phosphorus (TP) release in sediment form Baihua Lake. The results showed that an increase in the temperature led to a sharp increase in the TP release in the examined sediment. The TP release from the sediment decreased as the pH value increased until approximately pH = 7, and increased when pH > 7. There was phosphorus release in both aerobic and anoxic conditions, although the release quantities of TP were significantly higher in the anoxic condition than those in the aerobic condition. In addition, the TP release increased with agitation.

The bottom sediments of Lake Uzarzewskie - a phosphorus source or sink?

2010 ◽  
Vol 39 (3) ◽  
Author(s):  
Katarzyna Kowalczewska-Madura ◽  
Ryszard Gołdyn ◽  
Renata Dondajewska
Keyword(s):  
Spatial Variability ◽  
Bottom Sediments ◽  
Phosphorus Release ◽  
Internal Loading ◽  
Depth Range ◽  
Shallow Zone ◽  
Phosphorus Source

The bottom sediments of Lake Uzarzewskie - a phosphorus source or sink?Phosphorus release from bottom sediments studied in two zones of Lake Uzarzewskie differing in depth and water oxygenation displayed seasonal and spatial variability. The experiments indicated that the lake receives considerable internal loading, especially from the deeper, anaerobic, rarely-mixed part of the lake. Meanwhile, the shallow zone situated in the 0-3 m depth range, could be a sink for phosphorus during spring and a source during other seasons of the year. The total loading of phosphorus from the bottom sediments was over 950 kg year

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