Analysis of Performance of the Wind-Driven Pulverizing Aerator Based on Average Wind Speeds in the Conditions of Góreckie Lake

Osuch, Andrzej; Osuch, Ewa; Podsiadłowski, Stanisław; Rybacki, P.

doi:10.3390/en14102796

Cited by 4 publications

(3 citation statements)

References 30 publications

(57 reference statements)

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“…Such a treatment has been employed in Kortowskie Lake in Poland since 1956 (Dunalska et al, 2014) and in a small alpine Austrian lake since 1970 and still operates with little maintenance cost (Nürnberg, 2020a(Nürnberg, , 2020b. The typically high operating cost of aeration treatments (e.g., hypolimnetic aeration or oxygenation) can be reduced to almost zero by converting electrically powered aeration to wind or photovoltaic pulverizing oxygenation (Gołdyn et al, 2014;Osuch et al, 2021;Podsiadłowski et al, 2018). Nevertheless, it is important to note that the impact of wrongly selected measures will not be improved by using renewable energy.…”

Section: Costsmentioning

confidence: 99%

Sustainable lake restoration: From challenges to solutions

Tammeorg,

Chorus,

Spears

et al. 2023

WIREs Water

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Sustainable management of lakes requires us to overcome ecological, economic, and social challenges. These challenges can be addressed by focusing on achieving ecological improvement within a multifaceted, co‐beneficial context. In‐lake restoration measures may promote more rapid ecosystem responses than is feasible with catchment measures alone, even if multiple interventions are needed. In particular, we identify restoration methods that support the overarching societal target of a circular economy through the use of nutrients, sediments, or biomass that are removed from a lake, in agriculture, as food, or for biogas production. In this emerging field of sustainable restoration techniques, we show examples, discuss benefits and pitfalls, and flag areas for further research and development. Each lake should be assessed individually to ensure that restoration approaches will effectively address lake‐specific problems, do not harm the target lake or downstream ecosystems, are cost‐effective, promote delivery of valuable ecosystem services, minimize conflicts in public interests, and eliminate the necessity for repeated interventions. Achieving optimal, sustainable results from lake restoration relies on multidisciplinary research and close interactions between environmental, social, political, and economic sectors.This article is categorized under: Science of Water > Water Quality Water and Life > Stresses and Pressures on Ecosystems Water and Life > Conservation, Management, and Awareness

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Section: Costsmentioning

confidence: 99%

Sustainable lake restoration: From challenges to solutions

Tammeorg,

Chorus,

Spears

et al. 2023

WIREs Water

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“…The wind drive can operate at wind speed as low as 2 m•s -1 (Gałczyńska and Buśko, 2016). Aeration and oxygenation replace harmful gases with oxygen (Osuch et al, 2020a;Osuch et al, 2020b). Then, water can be completely saturated with oxygen.…”

Section: Introductionmentioning

confidence: 99%

Theoretical efficiency of the pulverising aerator – A case study based on Lake Swarzędzkie

Osuch,

Rybacki

et al. 2023

Journal of Water and Land Development

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Lakes can be restored by the aeration method with the use of wind driven pulverising aerators. The method allows for moderate oxygenation of hypolimnion waters and it may be part of an integrated surface waters restoration system. The paper attempts to use the author's method of maximum wind speeds to assess the volumetric flow of water through the aerator pulverisation mechanism. The study was conducted in 2018 in windy conditions of Lake Swarzędzkie. The introduction to the paper includes the characteristic of the lake and discusses the construction and operation of the wind driven pulverising aerator. Based on the maximum wind speed model, the theoretical capacity of the machine was calculated, which in the conditions of Lake Swarzędzkie was less than 111,500 m 3 per year. Based on maximum wind speeds, the method of assessing the efficiency of the wind driven pulverising aerator is suitable for determining the volumetric flow rate of the pulverisation unit. This can significantly facilitate the planning of water reservoir restoration.

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“…Many recent publications have indicated the deterioration of water quality in Poland [24][25][26][27] and worldwide [28,29]. Protection of lakes consists of finding a way to slow down, halt or even reverse the degradation processes or remove their negative consequences [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Possibility of Management of Curly-Leaf Pondweed for Energetic Purposes

Herkowiak

Osuch

et al. 2021

Energies

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The possibilities of using curly-leaf pondweed for energy purposes were analyzed. This plant contributes to overgrowth of water reservoirs, causing their eutrophication. The plants examined were from two different water reservoirs: Lake Winiary (Gniezno) and Lake Rusalka (Poznan). On the basis of the investigations, it was determined that it is possible to use curly-leaf pondweed for energy purposes, both in the combustion method and in the biomethane fermentation process. Studies were performed to assess the suitability of the plants for combustion as a solid biofuel and studies on the use of pondweed as a fermenter feedstock. The calorimetric study showed the possibility of obtaining more energy for the curly-leaf pondweed coming from Lake Rusalka. The heat of combustion of these plants was 13.95 MJ·kg−1 (Winiary pondweed) and 9.10 MJ·kg−1 (Rusalka pondweed). On the other hand, the calorific value of these plants was 12.60 MJ·kg−1 (Winiary pondweed) and 7.80 MJ·kg−1 (Rusalka pondweed). In the case of biogas yield studies, significantly higher biogas production was observed for Lake Rusalka pondweed than for Lake Winiary pondweed. The total biogas yield for these plants was 8.05 m3·Mg−1 for Rusalka pondweed and 3.19 m3·Mg−1 for Winiary pondweed. Differences in the chemical composition of pondweed originating from different lakes were also found, which translated into differences in the amount of energy that could be obtained from plants from both stands.

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Analysis of Performance of the Wind-Driven Pulverizing Aerator Based on Average Wind Speeds in the Conditions of Góreckie Lake

Cited by 4 publications

References 30 publications

Sustainable lake restoration: From challenges to solutions

Sustainable lake restoration: From challenges to solutions

Theoretical efficiency of the pulverising aerator – A case study based on Lake Swarzędzkie

Analysis of the Possibility of Management of Curly-Leaf Pondweed for Energetic Purposes

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