Pub Date : 2019-03-30DOI: 10.15576/ASP.FC/2019.18.1.137
A. Cupak, K. Chmielowski, P. Bugajski, E. Dacewicz
Research aims The aim of the conducted research was to assess efficiency of sewage treatment in rural areas in a sewage treatment plant with a sequencing batch reactor (SBR). Materials and methods Assessment of effectiveness of wastewater disposal in a treatment plant was carried out using elements of reliability theory. Research covered a period from March 2014 to December 2015. The content of pollution indicators in treated wastewater was compared with limit values included in the Regulation of the Minister of the Environment of November 18, 2014. Reliability analysis was performed for the following pollution indicators: BOD5, CODCr and total suspended solids. Reliability coefficient RF was assumed as a basis for reliability calculations. Next, technological treatment efficiency index (Pso) was calculated. Results and conclusions An analysis of treated wastewater in relation to three tested parameters proved that the treatment plant works properly. Limit values of examined indicators – included in the Regulation (Dz. U. 2014 poz. 1800) – have not been exceeded. Also, all the analysed parameters have shown high percentage of pollutant reduction, ranging between 96% for CODCr and 99% for BOD5. Obtained values of reliability indicators for the analysed treatment plant confirm its good condition.
{"title":"ASSESSMENT OF EFFICIENCY OF RURAL SEWAGE TREATMENT PLANT WITH BIOREACTOR","authors":"A. Cupak, K. Chmielowski, P. Bugajski, E. Dacewicz","doi":"10.15576/ASP.FC/2019.18.1.137","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.137","url":null,"abstract":"Research aims The aim of the conducted research was to assess efficiency of sewage treatment in rural areas in a sewage treatment plant with a sequencing batch reactor (SBR). Materials and methods Assessment of effectiveness of wastewater disposal in a treatment plant was carried out using elements of reliability theory. Research covered a period from March 2014 to December 2015. The content of pollution indicators in treated wastewater was compared with limit values included in the Regulation of the Minister of the Environment of November 18, 2014. Reliability analysis was performed for the following pollution indicators: BOD5, CODCr and total suspended solids. Reliability coefficient RF was assumed as a basis for reliability calculations. Next, technological treatment efficiency index (Pso) was calculated. Results and conclusions An analysis of treated wastewater in relation to three tested parameters proved that the treatment plant works properly. Limit values of examined indicators – included in the Regulation (Dz. U. 2014 poz. 1800) – have not been exceeded. Also, all the analysed parameters have shown high percentage of pollutant reduction, ranging between 96% for CODCr and 99% for BOD5. Obtained values of reliability indicators for the analysed treatment plant confirm its good condition.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"44 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84636133","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/2019.18.1.63
T. Kolerski, D. Kalinowska
Aim of the study This study analyses the efficiency of flood protection in a small urban catchment, based on a system of small reservoirs. Material and methods To assess the flood routing and surge reduction, a mathematical model of the river catchment was implemented. This was a lumped hydrological model, based on the SCS-CN method. Channel routing was performed, using kinematic wave equation. The sub-catchments have been determined based on the topographic maps and rain sewage systems. In the paper, the hydrological model of the water system of Potok Oruński (Oruński Stream) is presented with particular focus on the new and renovated retention structures. Hydrological modelling system of HEC HMS was used to simulate the catchment’s response to precipitation. Thanks to the recently established monitoring system of the Oruński Stream, it was possible to calibrate and validate the model. Single rain episode from April 2018 was used to perform model calibration, proving its high compatibility. The calibrated model was then used to reproduce the flood surge of July 2001, using historical catchment data. The peak discharge demonstrated a need for additional retention in the studied catchment. Theoretical scenarios were also modelled. The precipitation volume was calculated based on the IFS. As a worst-case scenario, the rain producing the most intense surface runoff was included. In all simulations, historical conditions as well the current state (2018) and projected further urbanisation of the catchment were taken into consideration. Results and conclusions Results of the study have shown reduction of the historical flood surge from July 2001 by nearly 60% when all existing flood protection systems were used.
{"title":"MATHEMATICAL MODELING OF FLOOD MANAGEMENT SYSTEM IN THE CITY OF GDAŃSK, ORUŃSKI STREAM CASE STUDY","authors":"T. Kolerski, D. Kalinowska","doi":"10.15576/ASP.FC/2019.18.1.63","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.63","url":null,"abstract":"Aim of the study This study analyses the efficiency of flood protection in a small urban catchment, based on a system of small reservoirs. Material and methods To assess the flood routing and surge reduction, a mathematical model of the river catchment was implemented. This was a lumped hydrological model, based on the SCS-CN method. Channel routing was performed, using kinematic wave equation. The sub-catchments have been determined based on the topographic maps and rain sewage systems. In the paper, the hydrological model of the water system of Potok Oruński (Oruński Stream) is presented with particular focus on the new and renovated retention structures. Hydrological modelling system of HEC HMS was used to simulate the catchment’s response to precipitation. Thanks to the recently established monitoring system of the Oruński Stream, it was possible to calibrate and validate the model. Single rain episode from April 2018 was used to perform model calibration, proving its high compatibility. The calibrated model was then used to reproduce the flood surge of July 2001, using historical catchment data. The peak discharge demonstrated a need for additional retention in the studied catchment. Theoretical scenarios were also modelled. The precipitation volume was calculated based on the IFS. As a worst-case scenario, the rain producing the most intense surface runoff was included. In all simulations, historical conditions as well the current state (2018) and projected further urbanisation of the catchment were taken into consideration. Results and conclusions Results of the study have shown reduction of the historical flood surge from July 2001 by nearly 60% when all existing flood protection systems were used.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"73 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74138124","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/2019.18.1.89
M. Ptak, M. Sojka, B. Nowak
Aim of the study Indication of directions and pace of changes in ice regime of Jagodne Lake in 1975–2015. An analysis of predictability of ice phenomena in relation to stability and seasonality and an understanding mutual interactions between parameters describing ice regime of the lake. Material and methods Data from the Jagodne Małe water gauge station on Jagodne Lake, concerning: the dates of the beginning and the end of ice phenomena, the beginning and the end of ice cover, and the thickness of ice cover from 1975–2015. Average monthly air temperature from the IMGW-PIB synoptic station in Mikołajki. Statistical analysis based on trend analysis using the non-parametric Mann-Kendall test and the Colwell method. Results and conclusions The research has proven that Jagodne Lake shows some tendencies to change in ice regime over the last four decades. These trends should be identified with a successive shortening of ice season and a decrease of the thickness of ice cover. However, these changes in the case of the beginning and the end of ice phenomena (including ice cover) and the thickness of ice cover are not statistically significant. Only shortening of ice phenomena duration was observed and confirmed by the Mann-Kendall statistical test. The analyzed object reacts similarly to most of lakes, for which research on changes in icing was conducted. The observed increase of average temperatures in April had an influence on shortening of ice phenomena.
目的研究1975-2015年Jagodne湖冰况变化的方向和速度。分析与稳定性和季节性有关的冰现象的可预测性，并了解描述湖泊冰况的参数之间的相互作用。资料与方法取自Jagodne Małe Jagodne湖水位测量站，资料涉及:1975-2015年冰现象开始和结束的日期、冰盖开始和结束的日期、冰盖厚度。IMGW-PIB天气观测站在Mikołajki的月平均气温。统计分析基于趋势分析，采用非参数Mann-Kendall检验和Colwell方法。结果与结论研究表明，在过去40年里，Jagodne湖的冰态呈现出一定的变化趋势。这些趋势应与冰季的连续缩短和冰盖厚度的减少相一致。然而，这些变化在开始和结束冰现象(包括冰盖)和冰盖厚度的情况下没有统计学意义。仅观察到冰现象持续时间缩短，并经Mann-Kendall统计检验证实。分析对象的反应与大多数湖泊相似，为此进行了结冰变化的研究。观测到的4月平均气温的升高对冰现象的缩短有影响。
{"title":"CHANGES IN ICE REGIME OF JAGODNE LAKE (NORTH-EASTERN POLAND)","authors":"M. Ptak, M. Sojka, B. Nowak","doi":"10.15576/asp.fc/2019.18.1.89","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.1.89","url":null,"abstract":"Aim of the study Indication of directions and pace of changes in ice regime of Jagodne Lake in 1975–2015. An analysis of predictability of ice phenomena in relation to stability and seasonality and an understanding mutual interactions between parameters describing ice regime of the lake. Material and methods Data from the Jagodne Małe water gauge station on Jagodne Lake, concerning: the dates of the beginning and the end of ice phenomena, the beginning and the end of ice cover, and the thickness of ice cover from 1975–2015. Average monthly air temperature from the IMGW-PIB synoptic station in Mikołajki. Statistical analysis based on trend analysis using the non-parametric Mann-Kendall test and the Colwell method. Results and conclusions The research has proven that Jagodne Lake shows some tendencies to change in ice regime over the last four decades. These trends should be identified with a successive shortening of ice season and a decrease of the thickness of ice cover. However, these changes in the case of the beginning and the end of ice phenomena (including ice cover) and the thickness of ice cover are not statistically significant. Only shortening of ice phenomena duration was observed and confirmed by the Mann-Kendall statistical test. The analyzed object reacts similarly to most of lakes, for which research on changes in icing was conducted. The observed increase of average temperatures in April had an influence on shortening of ice phenomena.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"3 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88928316","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/2019.18.1.127
Szczepan Budkowski, GEO-Mapa Szczepan Budkowski mgr inż. Szczepan Budkowski Sta Wola, U. Litwin
Aim of the paper The aim of the paper is to answer a question regarding the possibility of using a modern system of real estate cadastre, which as an interoperable spatial database could carry out tasks in the field of public safety Material and methods In Poland there is a legal obligation to register history, which gives an opportunity to create a 3D + cadastre. This article presents a method of functioning of a multidimensional cadastre, with data applicable to various fields, e.g. security. The research method includes both an analysis of literature on land and building records as well as a use of GIS tools in network analysis. The research focused on a use of data regarding building interior in regard to public safety. It was realised using available GIS tools. Conclusions and results The method of using graphical data related to premises (interior of buildings) presented in this paper extends beyond the currently performed cadastral functions and can be used, for example, to find an escape route. The task was realised with available GIS tools. In Poland, there is a legal obligation to register dates related to real estate, which gives the opportunity to create a 3D + cadastre. So far, there are no legal regulations pertaining to registration of geometrical data of premises and their presentation in a graphical part of a record. Full geometric and descriptive data on plots, buildings and premises can be used as an effective tool in space management: spatial planning, environmental protection, protection of natural resources, development of urbanization, as well as public safety
{"title":"SYNERGY IN SPACE – THE USE OF GIS TOOLS ON THE EXAMPLE OF PREMISES RECORDS IN THE LOD4 MODEL","authors":"Szczepan Budkowski, GEO-Mapa Szczepan Budkowski mgr inż. Szczepan Budkowski Sta Wola, U. Litwin","doi":"10.15576/ASP.FC/2019.18.1.127","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.127","url":null,"abstract":"Aim of the paper The aim of the paper is to answer a question regarding the possibility of using a modern system of real estate cadastre, which as an interoperable spatial database could carry out tasks in the field of public safety Material and methods In Poland there is a legal obligation to register history, which gives an opportunity to create a 3D + cadastre. This article presents a method of functioning of a multidimensional cadastre, with data applicable to various fields, e.g. security. The research method includes both an analysis of literature on land and building records as well as a use of GIS tools in network analysis. The research focused on a use of data regarding building interior in regard to public safety. It was realised using available GIS tools. Conclusions and results The method of using graphical data related to premises (interior of buildings) presented in this paper extends beyond the currently performed cadastral functions and can be used, for example, to find an escape route. The task was realised with available GIS tools. In Poland, there is a legal obligation to register dates related to real estate, which gives the opportunity to create a 3D + cadastre. So far, there are no legal regulations pertaining to registration of geometrical data of premises and their presentation in a graphical part of a record. Full geometric and descriptive data on plots, buildings and premises can be used as an effective tool in space management: spatial planning, environmental protection, protection of natural resources, development of urbanization, as well as public safety","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"17 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78453933","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/2019.18.1.39
A. Gruchot, T. Zydroń, E. Zawisza, Damian Bembenek, Łukasz Szałucha
Aim of the study The paper presents calculations of filtration through a side dam of the “Maziarnia” water reservoir in Wilcza Wola in the Podkarpackie Voivodeship. Material and methods In the selected sections, on the basis of penetration drilling and research excavations, the geotechnical structure of the dam body and base was identified and samples for laboratory tests were taken. The results of the tests and calculations of the soil filtration coefficient of the dam body were used for the calculation of unsteady and steady filtration through the dam using the finite element method in the GEO5 software. Results and conclusions The analysis of the results showed differences in the filtration coefficient values obtained from laboratory tests and calculated using empirical formulas as well as a relatively good compatibility of the position of computational filtration curve through the dam with the curve resulting from piezometric measurements.
{"title":"ANALYSIS OF FILTRATION PROCESSES BY EARTH HYDROTECHNICAL STRUCTURES","authors":"A. Gruchot, T. Zydroń, E. Zawisza, Damian Bembenek, Łukasz Szałucha","doi":"10.15576/ASP.FC/2019.18.1.39","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.39","url":null,"abstract":"Aim of the study The paper presents calculations of filtration through a side dam of the “Maziarnia” water reservoir in Wilcza Wola in the Podkarpackie Voivodeship. Material and methods In the selected sections, on the basis of penetration drilling and research excavations, the geotechnical structure of the dam body and base was identified and samples for laboratory tests were taken. The results of the tests and calculations of the soil filtration coefficient of the dam body were used for the calculation of unsteady and steady filtration through the dam using the finite element method in the GEO5 software. Results and conclusions The analysis of the results showed differences in the filtration coefficient values obtained from laboratory tests and calculated using empirical formulas as well as a relatively good compatibility of the position of computational filtration curve through the dam with the curve resulting from piezometric measurements.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"41 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82355159","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/2019.18.1.75
Maria Nawieśniak-Caesar, J. Hernik, M. Strutyński
Aim of the study This paper aims to present an integrated assessment of changes in a mountain river valley after a flood. Material and methods The assessment followed the LandScape & HydroMorphological Assessment of River Valleys Method (LSHM Method). The method is intended for assessing and identifying valuable areas in river valleys and determining their development potential. The LSHM Method distinguishes three main groups of factors: hydromorphological (H), landscape (L), and integrated (I). All the factors are assessed using a 10-point scale. Results and conclusions Landscape and hydromorphological assessment with the LSHM Method facilitates identifying transformations of both the river channel and valley together with the areas interrelated with the river, and assessment of integrated river valley landscape. The integrated approach can be applied in the planning of repairs when restoring a river valley after a flood.
{"title":"LANDSCAPE AND HYDROMORPHOLOGICAL ASSESSMENT OF A MOUNTAIN RIVER VALLEY AFTER FLOOD STAGE","authors":"Maria Nawieśniak-Caesar, J. Hernik, M. Strutyński","doi":"10.15576/ASP.FC/2019.18.1.75","DOIUrl":"https://doi.org/10.15576/ASP.FC/2019.18.1.75","url":null,"abstract":"Aim of the study This paper aims to present an integrated assessment of changes in a mountain river valley after a flood. Material and methods The assessment followed the LandScape & HydroMorphological Assessment of River Valleys Method (LSHM Method). The method is intended for assessing and identifying valuable areas in river valleys and determining their development potential. The LSHM Method distinguishes three main groups of factors: hydromorphological (H), landscape (L), and integrated (I). All the factors are assessed using a 10-point scale. Results and conclusions Landscape and hydromorphological assessment with the LSHM Method facilitates identifying transformations of both the river channel and valley together with the areas interrelated with the river, and assessment of integrated river valley landscape. The integrated approach can be applied in the planning of repairs when restoring a river valley after a flood.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"254 6 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90790630","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 : 2019-01-01DOI: 10.15576/ASP.FC/2018.17.1.3
A. Jędrych, J. Kempinski, W. Kilian
The paper presents a study on the effects of different types of cement on selected properties of C30/37 road concrete. It involved three types of cement: Portland CEM I 42,5 R cement, Portland slag CEM II/B-S 32,5 R cement and CEM III/A 42,5 N LH/HSR/NA blast cement. The composition of the concrete mixtures were designed and evaluated experimentally. Test samples were prepared in laboratory conditions. The maturation period took 28 days for concrete with CEM I 42,5 R and CEM II/B-S 32,5 R, and 56 days for CEM III/A 42,5 N LH/HSR/NA cement. After maturation the samples were tested for: compressive strength, bending tensile strength and splitting tensile strength, water absorption and frost resistance. It was found that each of the concrete meets the requirements for road concrete listed in the GDDKiA technical specification [Ogólna Specyfikacja Techniczna... 2014]. In most of the tests the CEM III/A 42,5 N LH/HSR/NA cement performed best.
本文研究了不同类型水泥对C30/37道路混凝土选择性能的影响。它涉及三种类型的水泥:波特兰CEM I 42,5 R水泥，波特兰矿渣CEM II/B-S 32,5 R水泥和CEM III/A 42,5 N LH/HSR/NA爆破水泥。对混凝土配合比进行了设计和试验评价。试验样品在实验室条件下制备。CEM I 42,5 R和CEM II/B-S 32,5 R混凝土的成熟期为28 d, CEM III/A 42,5 N LH/HSR/NA水泥的成熟期为56 d。成熟后对试样进行抗压强度、弯曲抗拉强度、劈裂抗拉强度、吸水率、抗冻性等测试。经检测，各混凝土均符合GDDKiA技术规范[Ogólna Specyfikacja Techniczna…]2014]。在大多数测试中，CEM III/ a42,5 N LH/HSR/NA水泥表现最好。
{"title":"ASSESSMENT OF SELECTED FEATURES OF THREE TYPES OF ROAD CONCRETE DEPENDING ON THE APPLIED CEMENT","authors":"A. Jędrych, J. Kempinski, W. Kilian","doi":"10.15576/ASP.FC/2018.17.1.3","DOIUrl":"https://doi.org/10.15576/ASP.FC/2018.17.1.3","url":null,"abstract":"The paper presents a study on the effects of different types of cement on selected properties of C30/37 road concrete. It involved three types of cement: Portland CEM I 42,5 R cement, Portland slag CEM II/B-S 32,5 R cement and CEM III/A 42,5 N LH/HSR/NA blast cement. The composition of the concrete mixtures were designed and evaluated experimentally. Test samples were prepared in laboratory conditions. The maturation period took 28 days for concrete with CEM I 42,5 R and CEM II/B-S 32,5 R, and 56 days for CEM III/A 42,5 N LH/HSR/NA cement. After maturation the samples were tested for: compressive strength, bending tensile strength and splitting tensile strength, water absorption and frost resistance. It was found that each of the concrete meets the requirements for road concrete listed in the GDDKiA technical specification [Ogólna Specyfikacja Techniczna... 2014]. In most of the tests the CEM III/A 42,5 N LH/HSR/NA cement performed best.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"119 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83525035","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 : 2019-01-01DOI: 10.15576/asp.fc/2019.18.2.67
E. Dacewicz, Ľ. Jurík
{"title":"APPLICATION OF A DOUBLE LAYER SAND FILTER WITH A PUR FOAMS LAYER IN THE TREATMENT OF DOMESTIC SEWAGE WITH AN INCREASED CONTENT OF AMMONIA NITROGEN","authors":"E. Dacewicz, Ľ. Jurík","doi":"10.15576/asp.fc/2019.18.2.67","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.2.67","url":null,"abstract":"","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"97 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85771074","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 : 2019-01-01DOI: 10.15576/asp.fc/2019.18.3.133
A. Gruchot
Aim of study The aim of the study was to assess soil compaction of the side body of the “B” earth dam in the “Maziarnia” water reservoir in Wilcza Wola in the Podkarpackie Voivodeship by using a conical and a vane probe of a dynamic probing light. Shear strength parameters of soils embedded in the dam’s body were also determined, i.e. undrained shear strength basing on field tests and the angle of internal friction and cohesion in a direct shear apparatus. Materials and methods Field tests included the determination of bulk density of soil and sounding with a dynamic probing light together with identifying the undrained shear strength in four sections located on the downstream slope over a section of about 300 m. Grain composition and compaction parameters were measured in laboratory tests in the Proctor apparatus. Shear strength parameters were also determined, i.e. the angle of internal friction and cohesion in a direct shear apparatus on samples without and with saturation during consolidation and shearing. Results and conclusions The analysis of obtained results indicates that the values of degree of compaction and compaction index – estimated on the basis of their correlations – differed significantly depending on the probe vane. It was found that for the most part the soils making the side dam’s body were characterized by low values of compaction index. However, the stability of the entire object was assessed as high due to high values of shear strength parameters from the vane probe test and the direct shear apparatus. Analysis of the results of shear strength tests in field and laboratory conditions showed no clear correlations between the tested parameters.
{"title":"ASSESSMENT OF SOIL COMPACTION AND SHEAR STRENGTH OF THE SIDE DAM OF THE “MAZIARNIA” WATER RESERVOIR","authors":"A. Gruchot","doi":"10.15576/asp.fc/2019.18.3.133","DOIUrl":"https://doi.org/10.15576/asp.fc/2019.18.3.133","url":null,"abstract":"Aim of study The aim of the study was to assess soil compaction of the side body of the “B” earth dam in the “Maziarnia” water reservoir in Wilcza Wola in the Podkarpackie Voivodeship by using a conical and a vane probe of a dynamic probing light. Shear strength parameters of soils embedded in the dam’s body were also determined, i.e. undrained shear strength basing on field tests and the angle of internal friction and cohesion in a direct shear apparatus. Materials and methods Field tests included the determination of bulk density of soil and sounding with a dynamic probing light together with identifying the undrained shear strength in four sections located on the downstream slope over a section of about 300 m. Grain composition and compaction parameters were measured in laboratory tests in the Proctor apparatus. Shear strength parameters were also determined, i.e. the angle of internal friction and cohesion in a direct shear apparatus on samples without and with saturation during consolidation and shearing. Results and conclusions The analysis of obtained results indicates that the values of degree of compaction and compaction index – estimated on the basis of their correlations – differed significantly depending on the probe vane. It was found that for the most part the soils making the side dam’s body were characterized by low values of compaction index. However, the stability of the entire object was assessed as high due to high values of shear strength parameters from the vane probe test and the direct shear apparatus. Analysis of the results of shear strength tests in field and laboratory conditions showed no clear correlations between the tested parameters.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"32 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85791537","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 : 2019-01-01DOI: 10.15576/asp.fc/2018.18.2.147
A. Mączałowski
Aim of the study Analysis and evaluation of the operation of KAMA measuring systems in relation to the currently used other measuring devices and techniques to control sewage discharge in accordance with the requirements of the new WATER LAW. Material and methods Measurement data of controlled measuring systems KAMA R1500 and KAMA 1000 and characteristics of measuring devices from other producers. Results and conclusions Control measurements of KAMA measuring systems in a circular collector and in a rectangular open channel are presented as examples of the most common variants of geometry of drop points. The obtained accuracy of measurement of the flow rate of KAMA orifices were referred to other currently used techniques and measuring devices, indicating the most important reasons for lower than one would expect accuracy in this range. The awareness of the equivalence of the used devices and measurement techniques in constant monitoring of the flow rate of discharged wastewater may be helpful in a rational construction of the control and measurement system.
{"title":"ANALYSIS AND EVALUATION OF THE MEASUREMENT SYSTEM BASED ON KAMA ORIFICES FOR MEASURING THE FLOW OF SEWAGE IN THE LIGHT OF THE WATER LAW REQUIREMENTS","authors":"A. Mączałowski","doi":"10.15576/asp.fc/2018.18.2.147","DOIUrl":"https://doi.org/10.15576/asp.fc/2018.18.2.147","url":null,"abstract":"Aim of the study Analysis and evaluation of the operation of KAMA measuring systems in relation to the currently used other measuring devices and techniques to control sewage discharge in accordance with the requirements of the new WATER LAW. Material and methods Measurement data of controlled measuring systems KAMA R1500 and KAMA 1000 and characteristics of measuring devices from other producers. Results and conclusions Control measurements of KAMA measuring systems in a circular collector and in a rectangular open channel are presented as examples of the most common variants of geometry of drop points. The obtained accuracy of measurement of the flow rate of KAMA orifices were referred to other currently used techniques and measuring devices, indicating the most important reasons for lower than one would expect accuracy in this range. The awareness of the equivalence of the used devices and measurement techniques in constant monitoring of the flow rate of discharged wastewater may be helpful in a rational construction of the control and measurement system.","PeriodicalId":51904,"journal":{"name":"Acta Scientiarum Polonorum-Formatio Circumiectus","volume":"60 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83892580","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}
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