Pub Date : 2019-09-01DOI: 10.15576/ASP.FC/2019.18.3.57
Marek Kalenik
Aim of the study The aim of the study was to laboratory determine whether introducing a supportive small coal layer with a granulation of 0.02–5 mm will improve the effectiveness of removal of nitrogen and phosphorus compounds from domestic sewage. The study concerned a layer that improves effectiveness of domestic sewage treatment in a household sewage treatment plant under an infiltration drainage system. Material
{"title":"STUDY OF EFFECTIVENESS OF SEWAGE TREATMENT IN MEDIUM SAND WITH A SUPPORTIVE SMALL COAL LAYER","authors":"Marek Kalenik","doi":"10.15576/ASP.FC/2019.18.3.57","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.3.57","url":null,"abstract":"Aim of the study The aim of the study was to laboratory determine whether introducing a supportive small coal layer with a granulation of 0.02–5 mm will improve the effectiveness of removal of nitrogen and phosphorus compounds from domestic sewage. The study concerned a layer that improves effectiveness of domestic sewage treatment in a household sewage treatment plant under an infiltration drainage system. Material","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"7 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85559676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.15576/asp.fc/2019.18.3.146
M. Żelazny, Marta Pufelska, Monika Sajdak, Ł. Jelonkiewicz, Marcin Bukowski
Aim of study The aim of the study was to determine the effect of deforestation of different genesis on the spatial differentiation of NO3 – concentration in the Polish Tatras. Materials and methods In 2018, 728 water samples were collected in the Tatras by hydrological and chemical survey. In the Hydrological and Chemical Laboratory of IGiGP UJ, ion chromatography determined: Ca2+, Mg2+, Na+, K+, HCO3 , SO4, Cl , NO3 , NO2 , NH4, PO4, Li+, F – and Br. Nitrates from 1719 water samples were analyzed in order to compare their current concentration to the period of 2007–09 (n = 991 water samples). The Tatras were divided into 13 areas. Results and conclusions The chemical composition of waters draining both forested and deforested Tatra slopes showed that in the decade from 2007–09 to 2018 the concentrations of NO3 increased rapidly. In 2018, an average NO3 – concentration expressed by median was higher by as much as 60.2%, rising from 1.76 to 2.82 mg · dm–3. The fluctuations in maximum concentrations were more pronounced, because their multiple increase occurred in five valleys, with the largest in: The Lejowa (by 348.2%) from 4.75 to 21.30 mg · dm–3; over double: Małej Łąki, Za Bramką and in Suchy Żleb; Kościeliska with Staników Żleb; Strążyska, Ku Dziurze and Spadowiec and Olczyska. Only in two areas the concentrations were lower. Comparison of the average NO3 – concentration in Tatra waters has definitely proven its higher levels than in other regions of Poland in forested catchments or agricultural catchments, with the exception of catchments with intensive agricultural activities. Diverse genesis of deforestation result in strong mosaic–like spatial differentiation of the NO3 – concentration. In waters draining the slopes deforested due to windfall, there is a concentration of NO3 – > 10 mg · dm–3, which can potentially cause an unfavorable phenomenon of eutrophication of waters, however, it has a natural cause.
{"title":"EFFECT OF DEFORESTATION OF DIFFERENT GENESIS ON SPATIAL VARIABILITY OF NITRATE CONCENTRATION IN STREAM WATER IN THE TATRA NATIONAL PARK","authors":"M. Żelazny, Marta Pufelska, Monika Sajdak, Ł. Jelonkiewicz, Marcin Bukowski","doi":"10.15576/asp.fc/2019.18.3.146","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.3.146","url":null,"abstract":"Aim of study The aim of the study was to determine the effect of deforestation of different genesis on the spatial differentiation of NO3 – concentration in the Polish Tatras. Materials and methods In 2018, 728 water samples were collected in the Tatras by hydrological and chemical survey. In the Hydrological and Chemical Laboratory of IGiGP UJ, ion chromatography determined: Ca2+, Mg2+, Na+, K+, HCO3 , SO4, Cl , NO3 , NO2 , NH4, PO4, Li+, F – and Br. Nitrates from 1719 water samples were analyzed in order to compare their current concentration to the period of 2007–09 (n = 991 water samples). The Tatras were divided into 13 areas. Results and conclusions The chemical composition of waters draining both forested and deforested Tatra slopes showed that in the decade from 2007–09 to 2018 the concentrations of NO3 increased rapidly. In 2018, an average NO3 – concentration expressed by median was higher by as much as 60.2%, rising from 1.76 to 2.82 mg · dm–3. The fluctuations in maximum concentrations were more pronounced, because their multiple increase occurred in five valleys, with the largest in: The Lejowa (by 348.2%) from 4.75 to 21.30 mg · dm–3; over double: Małej Łąki, Za Bramką and in Suchy Żleb; Kościeliska with Staników Żleb; Strążyska, Ku Dziurze and Spadowiec and Olczyska. Only in two areas the concentrations were lower. Comparison of the average NO3 – concentration in Tatra waters has definitely proven its higher levels than in other regions of Poland in forested catchments or agricultural catchments, with the exception of catchments with intensive agricultural activities. Diverse genesis of deforestation result in strong mosaic–like spatial differentiation of the NO3 – concentration. In waters draining the slopes deforested due to windfall, there is a concentration of NO3 – > 10 mg · dm–3, which can potentially cause an unfavorable phenomenon of eutrophication of waters, however, it has a natural cause.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"43 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88444092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.15576/asp.fc/2019.18.3.71
K. Plesiński, A. Radecki-Pawlik, M. Bien, Kamil Suder
Aim of the study The paper presents an assessment of capacity of a drop hydraulic structure, which was partially destroyed, and provides a description of slow renaturalization of a riverbed in this area. As a result of damage to the hydrotechnical structure caused by natural processes, some elements detached from the structure were deposited in an energy dissipation basin and in the riverbed downstream of the structure, impeding rock and vegetal debris traffic. These fluvial processes formed a cascade-like structure that led to a change in the regime of water flow through the hydrotechnical structure that was not planned or designed originally. Material and methods Due to partial destruction of the structure, the water flow regime was so drastically altered that it is possible for various species of fish to cross this section of river without any additional constructions like fish passes. Field measurements determined six potential fish migration routes through the damaged structure’s area. Then each fish migration route was evaluated against the possibility for fish to pass through the structure. Results and conclusions The analysis showed that the partly damaged drop hydraulic structure creates favourable conditions for migration of some fish species. It can be concluded that the elements detached from the drop hydraulic structure and deposited downstream should not be removed from the riverbed, because they improve the environmental conditions for aquatic organisms in terms of their migration.
{"title":"DAMAGED DROP HYDRAULIC STRUCTURE AS AN EXAMPLE OF NATURAL RENATURALIZATION PROCESS OF RIVER: THE DOBRZYCA RIVER, NORTH WEST POLAND","authors":"K. Plesiński, A. Radecki-Pawlik, M. Bien, Kamil Suder","doi":"10.15576/asp.fc/2019.18.3.71","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.3.71","url":null,"abstract":"Aim of the study The paper presents an assessment of capacity of a drop hydraulic structure, which was partially destroyed, and provides a description of slow renaturalization of a riverbed in this area. As a result of damage to the hydrotechnical structure caused by natural processes, some elements detached from the structure were deposited in an energy dissipation basin and in the riverbed downstream of the structure, impeding rock and vegetal debris traffic. These fluvial processes formed a cascade-like structure that led to a change in the regime of water flow through the hydrotechnical structure that was not planned or designed originally. Material and methods Due to partial destruction of the structure, the water flow regime was so drastically altered that it is possible for various species of fish to cross this section of river without any additional constructions like fish passes. Field measurements determined six potential fish migration routes through the damaged structure’s area. Then each fish migration route was evaluated against the possibility for fish to pass through the structure. Results and conclusions The analysis showed that the partly damaged drop hydraulic structure creates favourable conditions for migration of some fish species. It can be concluded that the elements detached from the drop hydraulic structure and deposited downstream should not be removed from the riverbed, because they improve the environmental conditions for aquatic organisms in terms of their migration.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"29 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86638093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.15576/asp.fc/2019.18.3.97
Amanda Kosmowska
{"title":"IMPACT OF DEFORESTATION ON CHANGES OF ION SHARE IN CHEMICAL COMPOSITION OF WATERS OF THE MALINOWSKI STREAM ALONG LONGITUDINAL HYDROCHEMICAL PROFILES","authors":"Amanda Kosmowska","doi":"10.15576/asp.fc/2019.18.3.97","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.3.97","url":null,"abstract":"","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"9 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85269767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-18DOI: 10.15576/asp.fc/2019.18.2.39
K. Chmielowski
Aim of the study The present paper analyses the influence of atmospheric precipitation on the variability of wastewater discharge from a selected sewerage system located in southern Poland. The research period covered the years 2011–2016. The daily outflows of wastewater from the sewerage system were adopted. Material and methods Precipitation data were obtained from a station located 7 km away from the tested facility (the nearest rainfall measurement station from the tested object) and based on this data, the mean daily precipitation values were determined for the examined period. Subsequently, the research period was divided, according to the amount of precipitation, into 7 basic groups. It was determined whether the mean values of wastewater discharge from the sewerage system in particular groups of rainfall intensity significantly differed from each other. The analysis was carried out using a one-way analysis of variance (ANOVA). The groups of rainfall intensity constituted the factor determining the value of wastewater outflow from the sewage agglomeration. Results and conclusions Based on the results of the research we conducted, actions were proposed aimed at increasing the control of accidental water outflow to the sewerage system. Based on that, operations have been determined, minimizing the inflow of accidental rainwaters to particularly sensitive sections of the sewerage system. Training should be provided for municipalities of the agglomeration, regarding the management of rainwater, so as to stop the inflow as far as possible, in the locations where it may arise.
{"title":"IMPACT OF ATMOSPHERIC PRECIPITATION ON THE VARIABILITY OF WASTEWATER DISCHARGE FROM A SELECTED SEWAGE SYSTEM IN JAWORZNO","authors":"K. Chmielowski","doi":"10.15576/asp.fc/2019.18.2.39","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.2.39","url":null,"abstract":"Aim of the study The present paper analyses the influence of atmospheric precipitation on the variability of wastewater discharge from a selected sewerage system located in southern Poland. The research period covered the years 2011–2016. The daily outflows of wastewater from the sewerage system were adopted. Material and methods Precipitation data were obtained from a station located 7 km away from the tested facility (the nearest rainfall measurement station from the tested object) and based on this data, the mean daily precipitation values were determined for the examined period. Subsequently, the research period was divided, according to the amount of precipitation, into 7 basic groups. It was determined whether the mean values of wastewater discharge from the sewerage system in particular groups of rainfall intensity significantly differed from each other. The analysis was carried out using a one-way analysis of variance (ANOVA). The groups of rainfall intensity constituted the factor determining the value of wastewater outflow from the sewage agglomeration. Results and conclusions Based on the results of the research we conducted, actions were proposed aimed at increasing the control of accidental water outflow to the sewerage system. Based on that, operations have been determined, minimizing the inflow of accidental rainwaters to particularly sensitive sections of the sewerage system. Training should be provided for municipalities of the agglomeration, regarding the management of rainwater, so as to stop the inflow as far as possible, in the locations where it may arise.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"21 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84658175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-30DOI: 10.15576/ASP.FC/2019.18.1.27
D. Gąsiorowski, W. Artichowicz
Aim of the study The article presents an algorithm for calculating the distribution of flow in a junction of open channel network under steady flow conditions. Material and methods The presented algorithm is based on the continuity equation and a simplified energy equation. To describe the relationship between the depth of water and the flow rate, the Manning’s equation was used to express discharge in the main channel, whereas in case of other channels, with hydraulic structures, appropriate equations describing the flow over a weir and through the culverts were used. Substitution of the abovementioned relationships into the continuity equation leads to a non-linear algebraic equation with respect to the water level. The resulting equation can be solved with iterative numerical methods. Calculation example using the proposed algorithm was carried out for the hydraulic system located on the Strzyża stream in Gdańsk. Results and conclusions The presented approach can be an alternative to analytical-graphic method and it does not require formulation of the boundary problem for the system of ordinary differential equations describing the gradually varied flow in the open channel network.
{"title":"DISTRIBUTION OF FLOWS IN A CHANNEL NETWORK UNDER STEADY FLOW CONDITIONS","authors":"D. Gąsiorowski, W. Artichowicz","doi":"10.15576/ASP.FC/2019.18.1.27","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.27","url":null,"abstract":"Aim of the study The article presents an algorithm for calculating the distribution of flow in a junction of open channel network under steady flow conditions. Material and methods The presented algorithm is based on the continuity equation and a simplified energy equation. To describe the relationship between the depth of water and the flow rate, the Manning’s equation was used to express discharge in the main channel, whereas in case of other channels, with hydraulic structures, appropriate equations describing the flow over a weir and through the culverts were used. Substitution of the abovementioned relationships into the continuity equation leads to a non-linear algebraic equation with respect to the water level. The resulting equation can be solved with iterative numerical methods. Calculation example using the proposed algorithm was carried out for the hydraulic system located on the Strzyża stream in Gdańsk. Results and conclusions The presented approach can be an alternative to analytical-graphic method and it does not require formulation of the boundary problem for the system of ordinary differential equations describing the gradually varied flow in the open channel network.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82789172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-30DOI: 10.15576/ASP.FC/2019.18.1.101
G. Priego-Hernández, Hector Rubio-Arias, F. Rivera-Trejo
{"title":"ADCP, MULTI-FREQUENCY ANALYSIS FOR FLOW MEASUREMENTS IN RIVERS","authors":"G. Priego-Hernández, Hector Rubio-Arias, F. Rivera-Trejo","doi":"10.15576/ASP.FC/2019.18.1.101","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.101","url":null,"abstract":"","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"13 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75405639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-30DOI: 10.15576/ASP.FC/2019.18.1.15
N. K. Gietka
Aim of the paper is to present the results studying the water hammer phenomenon in pipes made of different materials, and to show the impact of changing the type of material of the pipe on the velocity of the pressure wave during the transient flow in the pipes. In terms of research material and methods, pipes made of galvanized steel and high-density polyethylene were tested. Measurements were made using strain gauges with a high accuracy of measurement. The results of the pressure wave velocity range from 205 to 247 m/s for the polyethylene pipe, and from 426 to 1351 m/s for the steel pipe. Therefore, the change in the type of the pipe material has a significant effect on the velocity of the pressure wave during the water hammer. The value of this velocity is influenced not only by the properties of the material itself or of the liquid, but also of the length of the sections and their position relative to each other. It is evident that the velocity in the polyethylene pipe does not change significantly in relation to the situation where the pipe has constant material characteristics. The situation is radically different in the case of a steel pipe, where the velocity of the pressure wave changes along with the length of the pipe and its position relative to the tank. The lowest value of the velocity in the elastic pipe is achieved when the latter is on the valve side and is only 13.15 m long, while the highest value is reached when the 13.24 m steel pipe is located on the side of the tank.
{"title":"EXPERIMENTAL STUDIES ON THE IMPACT OF CHANGING THE PIPE MATERIAL ON THE PROPAGATION OF THE PRESSURE WAVE DURING WATER HAMMER","authors":"N. K. Gietka","doi":"10.15576/ASP.FC/2019.18.1.15","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.15","url":null,"abstract":"Aim of the paper is to present the results studying the water hammer phenomenon in pipes made of different materials, and to show the impact of changing the type of material of the pipe on the velocity of the pressure wave during the transient flow in the pipes. In terms of research material and methods, pipes made of galvanized steel and high-density polyethylene were tested. Measurements were made using strain gauges with a high accuracy of measurement. The results of the pressure wave velocity range from 205 to 247 m/s for the polyethylene pipe, and from 426 to 1351 m/s for the steel pipe. Therefore, the change in the type of the pipe material has a significant effect on the velocity of the pressure wave during the water hammer. The value of this velocity is influenced not only by the properties of the material itself or of the liquid, but also of the length of the sections and their position relative to each other. It is evident that the velocity in the polyethylene pipe does not change significantly in relation to the situation where the pipe has constant material characteristics. The situation is radically different in the case of a steel pipe, where the velocity of the pressure wave changes along with the length of the pipe and its position relative to the tank. The lowest value of the velocity in the elastic pipe is achieved when the latter is on the valve side and is only 13.15 m long, while the highest value is reached when the 13.24 m steel pipe is located on the side of the tank.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"174 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81234493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-30DOI: 10.15576/ASP.FC/2019.18.1.113
M. Szydłowski, W. Szpakowski
The paper presents the results of hydraulic calculations (numerical simulations), which were made to investigate the role of floodplain (polder) adjacent to the left bank of Cisowska Struga in Gdynia downstream Hutnicza St. in the process of retention and transformation of flood waves occurring in this river due to torrential rainfall. The paper also addressed the issue of the impact of potential changes in the development of the retention area under consideration for the flood risk in Rumia.
{"title":"IMPACT OF POLDER FLOOD PLAIN OF THE CISOWSKA STRUGA ON THE TRANSFORMATION OF FLOOD WAVES BETWEEN GDYNIA AND RUMIA","authors":"M. Szydłowski, W. Szpakowski","doi":"10.15576/ASP.FC/2019.18.1.113","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.113","url":null,"abstract":"The paper presents the results of hydraulic calculations (numerical simulations), which were made to investigate the role of floodplain (polder) adjacent to the left bank of Cisowska Struga in Gdynia downstream Hutnicza St. in the process of retention and transformation of flood waves occurring in this river due to torrential rainfall. The paper also addressed the issue of the impact of potential changes in the development of the retention area under consideration for the flood risk in Rumia.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"27 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89174529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-30DOI: 10.15576/ASP.FC/2019.18.1.145
K. Plesiński, Kamil Suder
Aim of research The aim of this research was to analyse an influence of check dams on granulometry of bed sediments in their impact area. Necessary data was obtained during field measurements carried out in May 2017. Sediment was collected using the Wolman’s method. Data collected through this method were used to determine granulometric curves, granulometric parameters and shapes of grains forming riverbed sediment in the region of the studied objects. Material and methods Sediment measurements were carried out below and above the check dams through the Wolman’s method. Grain size curves were then plotted, granulometric and sedimentological parameters were calculated. In addition, grain size and shape were determined using the Sneed and Folk methods. Results and conclusions The number of discoid grain pebbles increased below the dam in relation to the level above the dam. In the material collected below the dam there was a smaller number of spindle-shaped grains than in the material collected above the dam. Above the dam there are larger amounts of finer material than below. This may be related to the retention of even small grains of pebbles in the dam reservoir, in which flow velocity is lower than in the riverbed, thus depositing of carried material. On the other hand, in the lower station, due to the increased water flow velocity, small debris is washed away, and in the bottom of the bed only thick fractions are found.
{"title":"INFLUENCE OF CHECK DAMS ON BED SEDIMENT IN THE TENCZYŃSKI STREAM","authors":"K. Plesiński, Kamil Suder","doi":"10.15576/ASP.FC/2019.18.1.145","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.145","url":null,"abstract":"Aim of research The aim of this research was to analyse an influence of check dams on granulometry of bed sediments in their impact area. Necessary data was obtained during field measurements carried out in May 2017. Sediment was collected using the Wolman’s method. Data collected through this method were used to determine granulometric curves, granulometric parameters and shapes of grains forming riverbed sediment in the region of the studied objects. Material and methods Sediment measurements were carried out below and above the check dams through the Wolman’s method. Grain size curves were then plotted, granulometric and sedimentological parameters were calculated. In addition, grain size and shape were determined using the Sneed and Folk methods. Results and conclusions The number of discoid grain pebbles increased below the dam in relation to the level above the dam. In the material collected below the dam there was a smaller number of spindle-shaped grains than in the material collected above the dam. Above the dam there are larger amounts of finer material than below. This may be related to the retention of even small grains of pebbles in the dam reservoir, in which flow velocity is lower than in the riverbed, thus depositing of carried material. On the other hand, in the lower station, due to the increased water flow velocity, small debris is washed away, and in the bottom of the bed only thick fractions are found.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"161 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86349645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：