Article
Computer Science, Interdisciplinary Applications
Davide Vanzo, Samuel Peter, Lukas Vonwiller, Matthias Buergler, Manuel Weberndorfer, Annunziato Siviglia, Daniel Conde, David F. Vetsch
Summary: The freeware BASEMENT version 3 is a flexible tool for two-dimensional river simulations, incorporating solvers for hydrodynamic, morphodynamic, and scalar advection-diffusion processes. It leverages different computational platforms to efficiently simulate large domains and long-term river processes, making it a versatile tool for research, engineering practice, and education in river modelling.
ENVIRONMENTAL MODELLING & SOFTWARE
(2021)
Article
Engineering, Marine
Ismail Aouiche, Mouncef Sedrati, Edward J. Anthony
Summary: River mouths are dynamic systems that can respond rapidly to changes in water and sediment discharge as well as marine energy conditions. This study uses numerical models to analyze the hydrodynamic and sedimentary behavior of the Oum-Errabia River mouth in Morocco. The study discusses the historical evolution of the river mouth, the impact of human interventions such as dam construction, and the recent closure of the river outlet. The results show a significant deposition of sediment in front of the river mouth during the closure, highlighting the need for regular dredging to maintain a permanent opening.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Geography, Physical
Sana Khan, Kirstie Fryirs, Simone Bizzi
Summary: This study examines sediment connectivity across a basin using the case study of the Richmond River Catchment in New South Wales, Australia. By utilizing concepts such as effective catchment area and buffers, along with graph theory and an empirical sediment transport model, the study assesses the locational, transmission, and filter sensitivity properties of a fluvial system. The analysis identifies controls on sediment dynamics and segregates supply limited and transport limited reaches within the catchment.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Environmental Sciences
C. E. Renshaw, E. N. Dethier, J. D. Landis, J. M. Kaste
Summary: The input of organic matter into stream channels is an important energy source for headwater ecosystems and plays a crucial role in the global carbon cycle. The study focuses on quantifying the mobilization, transport, and storage of organic-rich fine sediment in a Strahler fourth-order stream during intermediate-sized storm events. It is found that the channel bed is consistently a source of suspended load to the channel margins, and the trapping of suspended load by riparian margins limits sediment transport distance and decouples the channel from local terrestrial organic matter exchange.
WATER RESOURCES RESEARCH
(2022)
Article
Geography, Physical
Daniel Vazquez-Tarrio, Alexandre Peeters, Mathieu Cassel, Herve Piegay
Summary: In the past 200 years, rivers worldwide have been impacted by human interventions which have resulted in river fragmentation and sediment starvation. Gravel augmentation has become a common restoration practice for mitigating sediment starvation in gravel-bed rivers. However, there are uncertainties in implementing and designing such operations.
Article
Multidisciplinary Sciences
Tesfa Worku Meshesha, Junye Wang, Nigus Demelash Melaku, Cynthia N. McClain
Summary: By extending the SWAT module to predict groundwater quality, the study found a linear relationship between observed and calculated values, with satisfactory coefficient of determination (R-2), Nash-Sutcliffe efficiency (NSE), and percent bias (PBIAS) values. The results demonstrated that nitrate and total dissolved solid (TDS) concentrations in groundwater may vary with changes in surface water quality, indicating the need for adaptive management scenarios to be designed. The extended SWAT model could serve as a powerful tool for future regional to global scale modeling of nutrient loads and effective surface and groundwater management.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Environmental
Meirong Zhou, Junqiang Xia, Shanshan Deng, Jian Shen, Yu Mao
Summary: This study proposed a method to determine the contribution of different sources to phosphorus recovery and developed an integrated model including flow, nonuniform sediment, and phosphorus transport. The application in the Middle Yangtze River showed a shift from particulate phosphorus to dissolved phosphorus transportation after the operation of the Three Gorges Project (TGP), but a significant longitudinal recovery of total phosphorus (TP) flux was observed. The effects of nonuniform sediment transport and bed-material coarsening on phosphorus transport were also investigated.
Article
Environmental Sciences
Andrew J. Moodie, Jeffrey A. Nittrouer, Hongbo Ma, Brandee N. Carlson, Yuanjian Wang, Michael P. Lamb, Gary Parker
Summary: This study demonstrates that sediment concentration may influence the magnitude and pattern of vertical density stratification through sampling and measurement under different flow conditions in the lower reach of the Yellow River. The importance lies in the understanding of the vertical density stratification phenomenon in natural river flows, which can improve sediment transport models and provide guidance for ecological environmental management and flood protection measures in rivers.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Cleber Pinto da Silva, Estevan Luiz da Silveira, Daniele Cristina Hass Seremeta, Danilo Gabriel dos Santos Matos, Andre Martins Vaz-dos-Santos, Sandro Xavier de Campos
Summary: The study found that anthropic activities have altered the natural rates of metal mobilization and deposition in the Verde River basin, resulting in metal concentrations in water, riverbed sediments, and fish tissues exceeding healthy limits set for aquatic life and human uses. This poses a high ecological and health risk for the region.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Bommanna G. Krishnappan
Summary: This paper presents a review of a semi-empirical modelling approach for cohesive sediment transport in river systems. A semi-empirical approach is a viable option due to the challenge of mathematical modelling for cohesive sediment transport, which is controlled by numerous parameters. The RIVFLOC model of cohesive sediment is reviewed, and the model parameters that need to be determined using a rotating circular flume are emphasized. The variability of these parameters highlights the importance of site-specific sediment testing to achieve reliable predictions of the RIVFLOC model. Application of the model to various river systems has shown the need to include the entrapment process in cohesive sediment transport models.
Article
Geography, Physical
Heide Friedrich, Diego Ravazzolo, Virginia Ruiz-Villanueva, Isabella Schalko, Gabriel Spreitzer, Jon Tunnicliffe, Volker Weitbrecht
Summary: Research on large wood (LW) in rivers has significantly advanced in the past 30 years, leading to a better understanding of its roles in ecosystems, riverine landforms, and morphodynamics. Innovations in laboratory techniques have enabled important progress in understanding LW dynamics, specifically focusing on mobilization and transport of logs, sediment trapping and deposition, and LW contribution to hydraulic flow resistance. Improved physical models incorporating LW processes are crucial for more reliable hazard assessment and river management in LW-prone systems.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Multidisciplinary Sciences
Niannian Fan, Qiang Zhong, Ruihua Nie, Xingnian Liu
Summary: Sediment transport is crucial to source-sink systems, but the interaction between turbulent river flow and sediment of different sizes has limited our understanding of sediment motion. Through flume experiments using a video-based technique, we observed detailed interactions between flow and particles ranging from 0.5 to 32 mm in size. Small suspended particles (<5 mm) were found to swirl in the wake of larger particles (>20 mm) until large coherent structures disrupted the wake and carried the small particles downstream. This model highlights the interactions between turbulence and particles of different sizes.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Muhammet Duman, Filiz Kucuksezgin, Atilla Husnu Eronat, Ezgi Talas, Tarik Ilhan, Senol Aydin
Summary: Pollution risk assessment of heavy metals in sediment samples from the Gulf of Edremit in western Turkey was conducted using various pollution assessment indices. The results showed low contamination levels in the surveyed area, except for moderate contamination of arsenic. Ecological risk assessment indicated frequent adverse biological effects of arsenic, chromium, and nickel on aquatic organisms.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Naveen Radhakrishnan, Sonam Taneja, Saurav Ambastha, Harsh Pipil, Anil Kumar Haritash
Summary: Sediment quality assessment is important for evaluating the quality of rivers and this study focuses on assessing heavy metal concentration in size-fractionated sediments of River Ganga and identifying sources of contamination. The results show that the sediments are contaminated and enriched with toxic metals, with Chinyalisaur, Devaprayag, and Rishikesh being classified as pollution hotspots. Natural sources contribute to aluminum and iron, while anthropogenic sources contribute to chromium, zinc, lead, nickel, copper, and cadmium. Immediate interventions are needed to control further contamination by restricting wastewater discharge into River Ganga.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Yougong Li, Ming Chen, Jilai Gong, Biao Song, Maocai Shen, Guangming Zeng
Summary: The research revealed that the presence of MPs in river sediments reduces the adsorption capacity of sediments to Cd (II) and accelerates the transport of Cd (II) in sediments.
Article
Energy & Fuels
Pawel Tomczyk, Miroslaw Wiatkowski
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.
Article
Green & Sustainable Science & Technology
Lukasz Gruss, Miroslaw Wiatkowski, Krzysztof Pulikowski, Andrzej Klos
Summary: Assessing water quality parameters in the river-reservoir system is essential for preventing pollution and implementing policies. Multivariate statistical analysis is useful in identifying key indicators, with NO2-N and NO3-N playing a significant role in water quality variability. The Turawa reservoir has been effective in reducing concentrations of these compounds, as indicated by PCA and RDA.
Article
Energy & Fuels
Pawel Tomczyk, Bernard Galka, Miroslaw Wiatkowski, Bogna Buta, Lukasz Gruss
Summary: This study analyzed the spatial distribution of sediment pollution near a small hydropower plant, finding significant impacts on sediment composition and properties. Heavy metals and other substances accumulate in large amounts at damming weirs, with differences in concentrations upstream and downstream. The sediments showed synergistic and antagonistic effects among tested parameters, indicating the importance of rational management of sediments within dams.
Article
Environmental Sciences
Pawel Tomczyk, Miroslaw Wiatkowski
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)
Article
Environmental Sciences
Pawel Tomczyk, Bernard Galka, Miroslaw Wiatkowski, Aleksandra Wdowczyk, Lukasz Gruss
Summary: This study analyzed the toxicity of sediments near hydropower plants in Poland and explored the possibility of using them for soil enrichment. The results showed significant differences in heavy metal content between upstream and downstream points of the analyzed plants. The sediments were found to stimulate plant growth to some extent.
LAND DEGRADATION & DEVELOPMENT
(2022)
Article
Environmental Sciences
Lukasz Gruss, Miroslaw Wiatkowski, Pawel Tomczyk, Jaroslav Pollert, Jaroslav Pollert Sr
Summary: This study compares the three-parameter distributions in controlled catchments for stationary and non-stationary data series and further develops the procedure for estimating simple distributions.
Article
Green & Sustainable Science & Technology
Tomasz Kaluza, Mateusz Hammerling, Pawel Zawadzki, Wojciech Czekala, Robert Kasperek, Mariusz Sojka, Marian Mokwa, Mariusz Ptak, Arkadiusz Szkudlarek, Miroslaw Czechlowski, Jacek Dach
Summary: This paper presents the historical overview and current state of the hydropower sector in Poland, highlighting the importance of hydropower in stabilizing Poland's power generation system. While the development of large hydropower plants has been hindered by environmental and economic factors, there is a growing interest in small hydropower plants.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Tomasz Kaluza, Mateusz Hammerling, Pawel Zawadzki, Wojciech Czekala, Robert Kasperek, Mariusz Sojka, Marian Mokwa, Mariusz Ptak, Arkadiusz Szkudlarek, Miroslaw Czechlowski, Jacek Dach
Summary: Poland has untapped hydropower potential due to various barriers and the impact of climate change. The country's hydropower sector is influenced by national and European laws, which emphasize water quality improvement and increasing the share of renewable energy sources. Managing environmental laws is important for new hydropower investments, and using existing hydraulic structures for water retention and energy production is crucial for the development of hydropower in Poland.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Environmental Sciences
Pawel Tomczyk, Miroslaw Wiatkowski, Bernard Galka, Lukasz Gruss
Summary: This study aimed to assess the impact of a hydropower plant on the sediment parameters of the Bystrzyca River in Poland. The results showed that the hydropower plant influenced the particle size distribution and heavy metal concentrations in the sediment. The findings provide support for the sustainable and rational management of hydropower plants.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Bogna Buta, Miroslaw Wiatkowski, Lukasz Gruss, Pawel Tomczyk, Robert Kasperek, Witold Skorulski
Summary: Preliminary water quality tests were conducted in the Turawa reservoir to assess the changes in water indicators and the degree of improvement in water quality. By reducing nutrient content, possible solutions were identified for reservoirs struggling with water eutrophication.
PRZEMYSL CHEMICZNY
(2022)
Article
Environmental Sciences
Maksymilian Polomski, Miroslaw Wiatkowski
Summary: This paper examines the use of lime for drainage in hydraulic engineering embankments and finds that lime stabilisation plays an important role in accelerating construction and improving efficiency. By comparing mechanical soil drainage with chemical drainage (lime stabilisation), the study discovers that lime stabilisation significantly increases the rate of embankment formation and is not affected by unfavorable weather conditions.
Article
Chemistry, Multidisciplinary
Pawel Tomczyk, Miroslaw Wiatkowski, Alban Kuriqi
Summary: This study investigates the impact of small hydropower plants on water quality in central European urban areas. The results show that the plants have improved certain aspects of the physicochemical status of the water, but have worsened others. The water quality indices varied depending on the classification.
APPLIED SCIENCES-BASEL
(2022)
Article
Multidisciplinary Sciences
Bogna Buta, Miroslaw Wiatkowski, Lukasz Gruss, Pawel Tomczyk, Robert Kasperek
Summary: The article aims to assess the spatio-temporal evolution of eutrophication and water quality in the Turawa dam reservoir in Poland. It identifies potential sources of physicochemical pollution contributing to eutrophication and determines the trophic status and water quality indices of the reservoir. The analysis shows that the reservoir is highly susceptible to eutrophication, particularly due to pollutants from high tourist areas and the Mala Panew River. Parameters such as TP, DO, BOD5, and COD were found to deteriorate the ecological status. The average water quality for the period 1998-2020 falls in classes II or III, with a noticeable deterioration in recent years indicating progressive eutrophication.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Pawel Tomczyk, Krzysztof Mastalerek, Miroslaw Wiatkowski, Alban Kuriqi, Jakub Jurasz
Summary: The purpose of this research was to investigate the hydroelectric potential of wastewater treatment plants. The Francis turbine, a key component of the energy generation system, was analyzed for its performance parameters. The results showed that the turbine achieved its highest efficiency with increased flow rates and maximized production with more frequent, lower flow rates throughout the year. The use of existing infrastructure in wastewater treatment plants can reduce construction costs and environmental impacts.
Article
Environmental Sciences
Pawel Tomczyk, Miroslaw Wiatkowski, Lukasz Gruss, Bogna Buta, Robert Kasperek, Robert Glowski, Kamil Rembielak
Summary: This study discusses the impact of hydropower plants on water quality, revealing an increase in certain substances downstream of the plant and an increase in turbidity near the plants. Additionally, it was found that the main water quality issue in the Michalice Reservoir stems from high pollution in the Widawa River catchment.
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
(2021)
