Hypertrophic Lakes and the Results of Their Restoration in Western Poland

Dondajewska, Renata; Gołdyn, Ryszard; Kowalczewska‐Madura, Katarzyna; Kozák, Anna; Romanowicz-Brzozowska, Wanda; Rosińska, Joanna; Budzyńska, Agnieszka; Podsiadłowski, Stanisław

doi:10.1007/978-3-030-12139-6_17

Cited by 13 publications

(13 citation statements)

References 41 publications

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“…This kind of treatment mitigates the potentially negative impact of chemical compounds on biota as well as lessening the costs of restoration [33]. Apart from iron coagulant, magnesium chloride was also added to bind both orthophosphates and ammonium N in insoluble ammonium-magnesium monophosphate, so-called struvite (MgNH 4 PO 4 •6H 2 O), deposited in sediments [11]. A simultaneous diminishment in SRP and ammonium N content in all water layers and at both stations indicated the success of the restoration treatments.…”

Section: Phosphorus-oxygen-chlorophyll-a Interactionsmentioning

confidence: 99%

“…Several methods are usually used at the same time to limit the effectiveness of feedbacks coming from the lake ecosystem to maintain its current degraded state [6]. Some nature-based solutions are used in Polish lakes, contributing to sustainable restoration, such as phosphorus inactivation using small precisely calculated doses of native chemical compounds, e.g., magnesium chloride and/or iron sulfate, deep water oxygenation using wind aerators, biomanipulation with predatory fish fry stocking, enrichment of water overlying the sediments with nitrates from the tributaries, increasing the redox potential of the sediment-water interphase and activating the denitrification process [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Long-Term Water Quality Changes as a Result of a Sustainable Restoration—A Case Study of Dimictic Lake Durowskie

Dondajewska

Kowalczewska‐Madura

Gołdyn

et al. 2019

Water

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Nature-based solutions in lake restoration enable gradual ecosystem reconstruction without drastic and expensive intervention. Sustainable lake restoration involves limited external interference strong enough to initiate and maintain positive changes in the ecosystem. It was introduced in Lake Durowskie, an urban, flow-through lake situated in Western Poland, using hypolimnetic aeration, phosphorus precipitation with small doses of chemicals and biomanipulation in 2009, and is continued until today. Oxygen conditions in the lake hypolimnion after initial deterioration were gradually improved, and finally a shortening of the duration and range of oxygen deficits was observed. Nitrogen transformations were induced in the hypolimnion by water aeration as well, reducing ammonium N (30% during 2013–2017 in comparison to 2008) and increasing nitrates (90% in 2013–2017 in comparison to 2008). Phosphorus content was diminished (19% during 2015–2017 in relation to 2008 for SRP) due to effective iron-binding and a smaller amount of fresh organic matter being decomposed. Its reduction was related to lower phytoplankton biomass, expressed in a decrease of chlorophyll-a concentrations (55% reduction during 2013–2017 in comparison to 2008) and an increase in water transparency (two-fold during 2013–2017 in relation to 2008) throughout the nine years of treatment. A long-term restoration program, based on non-aggressive, multiple in-lake techniques was applied and, despite the lack of a reduction in total external loading, was able to suppress progressive eutrophication.

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Section: Phosphorus-oxygen-chlorophyll-a Interactionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Long-Term Water Quality Changes as a Result of a Sustainable Restoration—A Case Study of Dimictic Lake Durowskie

Dondajewska

Kowalczewska‐Madura

Gołdyn

et al. 2019

Water

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“…This process may be partially limited by an increase in temperature, leading to, among the others, an extension of the vegetation period . This will result in a longer plant cover occurrence that will enhance nutrient uptake from soils and offer protection against erosion caused by rainfalls. , In the river bed phase, however, climate change may contribute to the extension of the period with conditions favorable for the acceleration of in situ biomass production (e.g., temperature and solar radiation). , …”

Section: Introductionmentioning

confidence: 99%

Biomass Production Potential in a River under Climate Change Scenarios

Orlińska-Woźniak

Szalińska

Jakusik

et al. 2021

Environ. Sci. Technol.

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Excessive production of biomass, in times of intensification of agriculture and climate change, is again becoming one of the biggest environmental issues. Identification of sources and effects of this phenomenon in a river catchment in the space–time continuum has been supported by advanced environmental modules combined on a digital platform (Macromodel DNS/SWAT). This tool enabled the simulation of nutrient loads and chlorophyll “a” for the Nielba River catchment (central-western Poland) for the biomass production potential (defined here as a TN:TP ratio) analysis. Major differences have been observed between sections of the Nielba River with low biomass production in the upper part, controlled by TN:TP ratios over 65, and high chlorophyll “a” concentrations in the lower part, affected by biomass transport for the flow-through lakes. Under the long and short-term RCP4.5 and RCP8.5 climate change scenarios, this pattern will be emphasized. The obtained results showed that unfavorable biomass production potential will be maintained in the upper riverine sections due to a further increase in phosphorus loads induced by precipitation growth. Precipitation alone will increase biomass production, while precipitation combined with temperature can even enhance this production in the existing hot spots.

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“…Conflicts between different stakeholders require integrated planning and management, but ultimately, if the state of a lake is already bad, quite invasive methods to restore a good condition are often needed. Choosing a method for cleaning up this type of water reservoirs is not an easy task [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Surface water pollution in most water reservoirs both in Poland and in the world comes mostly from soluble organic compounds (mainly from municipal or industrial wastewater discharge), nutrients (from surface runoff from fields or point sources), and suspended solids of various origin-mineral and organic fractions [9][10][11][12]. Over time, polluted sediments that accumulated at the bottom of the reservoirs, are an internal source of nutrients released into the reservoir waters, often even more destructively affecting the lake's ecosystem than external sources [6].…”

Section: Introductionmentioning

confidence: 99%

The Process of Microbiological Remediation of the Polluted Słoneczko Reservoir in Poland: For Reduction of Water Pollution and Nutrients Management

Mazurkiewicz

Mazur

et al. 2020

Water

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The article discusses the impact of nutrients from sewage on the state of the sewage receiver. Bioremediation was carried out through the use of effective microorganisms. The potential recovery of valuable mineral and organic substances in the form of fertilizers was also examined. The Słoneczko Reservoir is a bathing area and serves many people in the summertime as a place of water recreation. Water quality deteriorated intensively from 2006 as a result of illegal wastewater discharge and the impact of fecal pollution from bathers. The high concentration of nutrients in the water was the cause of the eutrophication process and blooms of cyanobacteria, which pose a threat to human health in the bathing area. The bathing area was also closed many times by sanitary services as a result of exceeding the number of Escherichia coli and Enterococcus faecalis in the water. At the bottom of the reservoir, there was a layer of sediments with a thickness of 30–70 cm. Thus, the processes of anaerobic decomposition generated odor, causing nuisance in the reservoir area. Water transparency varied from 30 to 50 cm, due to the accumulation of suspensions and biomass of planktonic algae. The reservoir was subjected to microbiological bioremediation in 2017 and 2018 to polluted water treatment and to reduce the organic content of bottom sediments. Already after the first application of biopreparations putrefactive odors and the eutrophication process disappeared at the end of the 2017 summer season. Bioremediation reduced the value of E. coli and E. feacalis to the acceptable level. After the second application in 2018, the organic fraction of the bottom sediments was reduced to a very low level and the water transparency reached the bottom (maximum depth was 2.2 m) throughout the entire bathing area. The effect of the water remediation was maintained until 2019, and the surface water quality remained at a very good level. An important aspect in this case is also the exploitation of bottom sediments, because they are rich in nutrients and organic matter, and therefore it may have some potential as a fertilizer. The recovery of nutrients can be used in plant or pot production. However, they contain compounds that degrade quickly, causing unpleasant odors and threatening the environment. Thus, they should be managed and handled in an environmentally friendly and sustainable way.

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Hypertrophic Lakes and the Results of Their Restoration in Western Poland

Cited by 13 publications

References 41 publications

Long-Term Water Quality Changes as a Result of a Sustainable Restoration—A Case Study of Dimictic Lake Durowskie

Long-Term Water Quality Changes as a Result of a Sustainable Restoration—A Case Study of Dimictic Lake Durowskie

Biomass Production Potential in a River under Climate Change Scenarios

The Process of Microbiological Remediation of the Polluted Słoneczko Reservoir in Poland: For Reduction of Water Pollution and Nutrients Management

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