Small Hydropower Plants' Impacts on the Ecological Status Indicators of Urban Rivers

Article Environmental Sciences

Analysis of the Bacterial Biocenosis of Activated Sludge Treated with Leachate from Municipal Landfills

Aleksandra Wdowczyk et al.

Summary: The influx of landfill leachate into wastewater treatment plants may have a positive effect on the quality of activated sludge bacteria, but can introduce new bacteria at the species level.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH (2022)

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Article Energy & Fuels

Functionalized graphene oxide/polyvinylidene fluoride composite membrane acting as a triboelectric layer for hydropower energy harvesting

Duy Linh Vu et al.

Summary: By utilizing functionalized graphene oxide, the performance of PVDF composite membranes in TENG is enhanced, leading to improved output power generation. The experiment shows that the output power of F-GO/PVDF TENG is 7 times higher than PVDF TENG and 1.8 times higher than GO/PVDF TENG.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2022)

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Review Green & Sustainable Science & Technology

Review of energy harvesting techniques in wireless sensor-based pipeline monitoring networks

Mati-ur-Rasool Ashraf Virk et al.

Summary: This paper provides a comprehensive review of energy harvesting in wireless sensor networks, discussing different technologies and integration methods, and offering selection guidelines and research directions to enhance system reliability and operational efficiency.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2022)

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Article Environmental Sciences

Influence of Cascade Hydropower Development on Water Quality in the Middle Jinsha River on the Upper Reach of the Yangtze River

Tianbao Xu et al.

Summary: This study aims to investigate the impact of cascade hydropower development on water quality changes in the middle reaches of the Jinsha River and identifies sedimentation and regional economic and social development as the main influencing factors. The findings provide a basis for water quality protection plans and the development of cascade hydropower in other river basins.

WATER (2022)

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Review Engineering, Environmental

Production of total dissolved gas supersaturation at hydropower facilities and its transport: A review

Pengcheng Li et al.

Summary: This study comprehensively reviews the impact and mitigation strategies of total dissolved gas supersaturation (TDG) in hydropower facilities. It emphasizes the importance of developing predictive tools for TDG generation that consider both facility geometry and downstream hydrology. The study also discusses TDG transport models and risk assessment methods, along with potential measures for mitigating TDG supersaturation. The findings from this review provide valuable recommendations for reducing uncertainties and improving environmental performance at facilities where TDG risks occur.

WATER RESEARCH (2022)

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Article Marine & Freshwater Biology

Acute effects of gas supersaturation on Atlantic salmon smolt in two Norwegian rivers

Sondre Kvalsvik Stenberg et al.

Summary: This study investigated the effects of TDG supersaturation on the survival of Atlantic salmon smolts and found that they may be more vulnerable to TDG supersaturation than Pacific salmonids. The study also provides important data linking the effects of TDG in the laboratory and in the field.

HYDROBIOLOGIA (2022)

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Article Green & Sustainable Science & Technology

Comparative analysis of changes in hydromorphological conditions upstream and downstream hydropower plants on selected rivers in Poland and Belgium

Pawel Tomczyk et al.

Summary: The article assesses the impact of hydropower plants on the hydromorphological conditions of rivers, finding that upstream sections have a moderate state, while downstream areas show poor conditions and reference sites are in good shape. The study reveals that the hydromorphological conditions are mainly influenced by anthropogenic pressures, obstacles in the riverbed, river regulation, and changes in the hydrological regime.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Engineering, Environmental

Water quality index and spatio-temporal perspective of a large Brazilian water reservoir

Karla Lorrane de Oliveira et al.

Summary: The study evaluated the spatio-temporal variability of the Irape Hydroelectric Power Plant reservoir and its main tributaries, finding that dissolved iron was the main parameter with violations, and there was an increasing trend in ammonia nitrogen and dissolved iron at monitoring stations. The reservoir water quality was mainly classified as good and acceptable, while tributaries showed poorer water quality.

WATER SUPPLY (2021)

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Review Biodiversity Conservation

A review of water quality index models and their use for assessing surface water quality

Md. Galal Uddin et al.

Summary: The water quality index (WQI) model is a popular tool for evaluating surface water quality, converting extensive data into a single index. While commonly used, the model faces issues such as specificity to regional guidelines and uncertainty in data conversion. This paper compares commonly used WQI models and discusses issues affecting model accuracy.

ECOLOGICAL INDICATORS (2021)

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Article Environmental Sciences

Stochastic trophic level index model: A new method for evaluating eutrophication state

Yang Ding et al.

Summary: The study introduced a probability density function and proposed the stochastic trophic level index model (STLI) to comprehensively evaluate the eutrophication state of a region by quantifying the risk of each trophic level, which can be used for uncertainty and risk assessment.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

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Article Multidisciplinary Sciences

Assessment of the impact of land use in an agricultural catchment area on water quality of lowland rivers

Jerzy M. Kupiec et al.

Summary: The study revealed that agricultural land area exceeding 70% in a catchment area poses a risk of nitrate pollution in water, leading to deteriorating water quality. Most physico-chemical parameters in the main watercourse and its tributaries exceeded the limits of good ecological status, with only a few survey sites showing good ecological conditions.

PEERJ (2021)

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Article Environmental Sciences

Net zero-emission pathways reduce the physical and economic risks of climate change

Laurent Drouet et al.

Summary: Mitigation pathways often overlook the climate and economic impacts associated with temperature overshoot. Limiting overshoot can reduce the probability of critical physical impacts like heat extremes, lowering risks and short-term mitigation costs. After mid-century, overshoot leads to higher mitigation costs and economic losses, underscoring the importance of climate risk analysis in low-carbon pathways.

NATURE CLIMATE CHANGE (2021)

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Article Energy & Fuels

The Effects of Hydropower Plants on the Physicochemical Parameters of the Bystrzyca River in Poland

Pawel Tomczyk et al.

Summary: This study found that hydropower plants impact certain physicochemical parameters of water, with the impact increasing in direct proportion to damming height. The research highlights the need for more comprehensive studies on the environmental impact of HPs and aligns with EU recommendations for member states to increase renewable energy sources and conduct environmental impact assessments for such facilities.

ENERGIES (2021)

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Article Energy & Fuels

Hydropower exploitation for Pakistan's sustainable development: A SWOT analysis considering current situation, challenges, and prospects

Muhammad Sibtain et al.

Summary: Pakistan has yet to fully harness its hydropower potential, relying on imported and local fossil fuels for energy. Despite facing challenges such as substantial capital investment and seasonal variations, hydropower offers advantages like huge resource potential and sustainable energy source. Opportunities lie in the increasing demand-supply gap and unexploited potential, while threats include economic and political instability and dependence on foreign investment and fossil fuels.

ENERGY STRATEGY REVIEWS (2021)

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Article Green & Sustainable Science & Technology

Ecological impacts of run -of -river hydropower plants ? Current status and future prospects on the brink of energy transition

Alban Kuriqi et al.

Summary: The widespread perception of small run-of-river hydropower plants as renewable energy sources has led to their global proliferation, but such schemes may have negative impacts on fluvial ecosystems. Different types of small run-of-river hydropower schemes have varying ecological impacts, with diversion weir and pondage schemes being less eco-friendly compared to dam-toe schemes. Environmental flows are crucial for ecosystem conservation in rivers affected by hydropower operations.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

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Review Environmental Sciences

Hydropower-driven thermal changes, biological responses and mitigating measures in northern river systems

Jan Heggenes et al.

Summary: Water temperature changes can impact the life histories and diversity of aquatic species, potentially resulting in negative impacts on key organisms such as Atlantic salmon and brown trout, particularly in northern river systems. Positive impacts are less studied and observed.

RIVER RESEARCH AND APPLICATIONS (2021)

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Article Multidisciplinary Sciences

Net-zero emission targets for major emitting countries consistent with the Paris Agreement

Heleen L. van Soest et al.

Summary: The study shows that Brazil and the USA reach domestic net zero greenhouse gas and CO2 emissions a decade earlier than the global average, while India and Indonesia are later. Factors like carbon storage and afforestation capacity, income levels, share of non-CO2 emissions, and transport sector emissions influence the projected phase-out years across countries.

NATURE COMMUNICATIONS (2021)

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Article Energy & Fuels

Investigations of Rake and Rib Structures in Sand Traps to Prevent Sediment Transport in Hydropower Plants

Mads Mehus Ivarson et al.

Summary: By improving the design of sand traps with the installation of v-shaped rake structures and rib structures, the study aims to reduce sediment erosion and increase the lifespan of hydraulic turbines in hydropower plants. Integration of rib structures can decrease total weight of escaping sediments by 24.5% and improve sand trap efficiency, while adding v-shaped rakes increases total weight of escaping sediments by 48.5% and worsens sand trap efficiency.

ENERGIES (2021)

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Article Environmental Sciences

Impact of a small hydropower plant on water quality dynamics in a diversion and natural river channel

Pawel Tomczyk et al.

Summary: This study assessed the impact of hydropower plants on water quality dynamics, finding significant changes in electrical conductivity, pH, and dissolved oxygen, with better water quality recorded downstream. The proposed indicators help compare water quality at different locations, providing valuable insights for water resource management.

JOURNAL OF ENVIRONMENTAL QUALITY (2021)

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Article Environmental Sciences

Retrofitting of Pressurized Sand Traps in Hydropower Plants

Wolfgang Richter et al.

Summary: The use of unlined pressure tunnels in sound rock, combined with pressurized sand traps, allows for low-cost construction of hydropower tunnel systems. Many hydropower plants around the world are currently being upgraded with higher capacity, which may pose challenges with sand trap efficiency. A study combining physical scale model tests and 3D CFD simulations found that a combined ramp and ribs structure significantly improves sediment trap efficiency.

WATER (2021)

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Article Environmental Sciences

Analysis of the Physicochemical Quality of Water Within the Hydropower Plant on the Sleza River in Wroclaw, Poland

Pawel Tomczyk

Summary: The study analyzed the physicochemical quality of water within a hydropower plant on the Sleza River in Wroclaw, Poland, and found that the plant had minimal influence on water quality compared to other interactions in the catchment area. Effects observed included decreased water temperature fluctuations downstream of the plant and increased oxygenation below the damming, with significant statistical changes. However, the physicochemical condition of water did not meet standards for 8 out of 9 parameters, with the largest exceedances observed for NO2-N.

ROCZNIK OCHRONA SRODOWISKA (2021)

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Article Chemistry, Analytical

Anthropogenic influences on Zambian water quality: hydropower and land-use change

R. Scott Winton et al.

Summary: The Zambezi River Basin in Southern Africa is experiencing rapid development and population growth, which is likely to degrade surface water quality. Major rivers like the Zambezi and Kafue are clean but suffer from thermal changes, hypoxia, and sediment loss below dams. Smaller tributaries with higher anthropogenic land cover show signs of pollution with increased nutrient and ion concentrations.

ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS (2021)

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Article Environmental Sciences

Enrichment of bioavailable phosphorus in fine particles when sediment resuspension hinders the ecological restoration of shallow eutrophic lakes

Siliang Zhang et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

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Article Fisheries

Reference and current Trophic Level Index of New Zealand lakes: benchmarks to inform lake management and assessment

Jonathan M. Abell et al.

NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH (2020)

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Article Environmental Sciences

Spatial and Temporal Variability of Water Quality in the Bystrzyca River Basin, Poland

Antoni Grzywna et al.

WATER (2020)

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Article Water Resources

Effect of hydraulic load on thermal stratification in karst cascade hydropower reservoirs, Southwest China

Xinyue Yang et al.

JOURNAL OF HYDROLOGY-REGIONAL STUDIES (2020)

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Article Physics, Multidisciplinary

The presence of toxic metals in popular farmed fish species and estimation of health risks through their consumption

Nighat Sultana Resma et al.

PHYSICS OPEN (2020)

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Article Environmental Sciences

Bacterial Abundance and Physicochemical Characteristics of Water and Sediment Associated with Hydroelectric Dam on the Lancang River China

Xia Luo et al.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH (2019)

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Review Green & Sustainable Science & Technology

Water-solid triboelectric nanogenerators: An alternative means for harvesting hydropower

Dongyue Jiang et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2019)

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Article Environmental Sciences

Modelling Climate Change's Impact on the Hydrology of Natura 2000 Wetland Habitats in the Vistula and Odra River Basins in Poland

Joanna O'Keeffe et al.

WATER (2019)

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Review Energy & Fuels

Renewable energy harvesting with the application of nanotechnology: A review

Mohammad H. Ahmadi et al.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2019)

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Article Environmental Sciences

Remobilization of trace metals during laboratory resuspension of contaminated sediments from a dam reservoir

Lucie Monnin et al.

JOURNAL OF SOILS AND SEDIMENTS (2018)

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The trends of aquacultural nitrogen budget and its environmental implications in China

Zhibo Luo et al.

SCIENTIFIC REPORTS (2018)

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Article Fisheries

Phosphorus, Aquaculture, and the Environment

Shozo H. Sugiura

REVIEWS IN FISHERIES SCIENCE & AQUACULTURE (2018)

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Article Multidisciplinary Sciences

Sustainable hydropower in the 21st century

Emilio F. Moran et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2018)

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Review Green & Sustainable Science & Technology

Operation of hydro power plants-a review

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Challenges in the wind turbines location process in Central Europe - The use of spatial decision support systems

Jan Kazak et al.

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Marcus Vinicius Estigoni et al.

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Alkalinity and Hardness: Critical but Elusive Concepts in Aquaculture

Claude E. Boyd et al.

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Environmental Factors Structuring Fish Communities in Floodplain Lakes of the Undisturbed System of the Biebrza River

Katarzyna Glinska-Lewczuk et al.

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Physicochemical Characteristics of River Water Downstream of a Large Tropical Hydroelectric Dam

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The Role of Hydropower in Climate Change Mitigation and Adaptation: A Review

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Mobility of phosphorus induced by sediment resuspension in the Three Gorges Reservoir by flume experiment

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CHEMOSPHERE (2015)

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Effects of a diversion hydropower facility on the hydrological regime of the Correntes River, a tributary to the Pantanal floodplain, Brazil

Ibraim Fantin-Cruz et al.

JOURNAL OF HYDROLOGY (2015)

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Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

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Dissolved oxygen criteria for freshwater fish in New Zealand: a revised approach

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NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH (2014)

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Characterization of the Water Quality Status on a Stretch of River Lerez around a Small Hydroelectric Power Station

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Small Hydropower Plants' Impacts on the Ecological Status Indicators of Urban Rivers

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