Temat: biogenic - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Glony wskaźnikowe w turawskim zbiorniku retencyjnym
Algae indicators in Turawa Reservoir
Autorzy:: Ostrowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/271412.pdf
Data publikacji:: 2013
Wydawca:: Górnośląska Wyższa Szkoła Pedagogiczna im. Kardynała Augusta Hlonda
Tematy:: rzeka Mała Panew
substancje biogenne
stężenie biogenów
Mała Panew river
biogenic compounds
biogenic concentration
Opis:: Od czerwca do października 2007 roku miejscem badań fizyczno-chemicznych i hydrobiologicznych było duże Jezioro Turawskie. Celem badań jest pokazanie procesu rozwoju glonów pod wpływem istniejących warunków fizykochemicznych wody jeziornej. Częstotliwość badań zależna była od nasilenia zjawisk (nasłonecznienie, temperatura powietrza i wody, wiatr) mogących mieć wpływ na zakwity, średnio: raz w tygodniu. Wyróżniono grupy systematyczne glonów planktonowych: Cyanophyta, Chlorophyta, Bacillariophyceae, Euglenophyceae. Oznaczono wśród nich przedstawicieli głównie z rodzajów Microcystis, Asterionella, Fragilara, Closterium, Cosmarium, Pediastrum. W całym okresie badawczym na podstawie częstości występowania wyodrębnić można grupę gatunków charakterystycznych dla fitoplanktonu Jeziora Turawskiego, strefy przybrzeżnej. Są to: sinice (Microcystis aeruginosa, Microcystis viridis), okrzemki (Asterionella formosa i Fragilaria crotonensis). Zakres badań fizykochemicznych wody obejmował badanie: pH, temperatury wody, tlenu rozpuszczonego, zawartości azotu, fosforu, żelaza, BZT5, ChZT. Wartości analizowanych wskaźników fizykochemicznych wody Jeziora Turawskiego nie pozwalają na zakwalifikowanie go do II klasy czystości wód.
From June until October of 2007 Turawa Resevoir was the place of a physicochemical and hydrobiological examination. The samples were taken once a week on average. The following plankton algae systematical groups were distinguished: Cyanophyta, Chlorophyta, Bacillariophyceae, Euglenophyceae. Among them the respresentatives of the following genus were mostly determined: Microcystis, Asterionella, Fragilara, Closterium, Cosmarium, Pediastrum. During the whole examination period on the basis of the appearance intensity of typical groups of species of phytoplankton of Turawa Lake (littoral area) can be distinguished and these are: cyanosis (Microcystis aeruginosa, Microcystis viridis), diatoms (Asterionella formosa and Fragilaria crotonensis). Physicochemical tests of the water included: pH, water temperature, dissolved oxygen, nitrogen content, phosphorus, iron, BOD5, COD. In terms of water cleanliness, the values of the physicochemical indicators anaylsed from Turawa Lake do not even allow it to qualify as a 2nd Class water source.
Źródło:: Journal of Ecology and Health; 2013, R. 17, nr 4, 4; 163-168
2082-2634
Pojawia się w:: Journal of Ecology and Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Statistical process control of removal of nitrogen compounds in the wastewater treatment plant in Krosno
Autorzy:: Wąsik, E.
Jurík, L.
Chmielowski, K.
Operacz, A.
Bugajski, P.
Powiązania:: https://bibliotekanauki.pl/articles/101057.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: control chart
biogenic compounds
wastewater treatment plant
Opis:: The aim of the paper was to determine the possibility of the use of Shewhart control charts to monitor changes in the forms of nitrogen, showing the quality of wastewater discharged from the wastewater treatment plant in Krosno in the years 2010-2015. The performed statistical analysis showed the highest number of cases of elevated nitrate nitrogen and/or ammonium nitrogen when the temperature of treated wastewater was below 8-9°C. This low temperature resulted in adverse effect on the activity of bacteria that were involved in biological removal of nitrogen. It was found that in the winter months, the second stage of nitrifying bacteria responsible for oxidation of nitrite to nitrate, exhibited higher activity than the denitrifying bacteria. Graphical presentation of total nitrogen content using control charts for the mean of the process revealed the exceedance of the upper specification line (USL = 10 mgN_tot·dm-3) in the months from December to April. It was observed that the total nitrogen removal process in the months from June to November was stable with a very high 90% reduction in biogenic activity. The obtained results confirm the efficacy of control charts as a tool which can easily be applied in the statistical process control of total nitrogen removal in municipal wastewater treatment plants.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1699-1711
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Operating difficulties of small water reservoir located in Wasilkow
Autorzy:: Siemieniuk, A.
Szczykowska, J
Wiater, J
Powiązania:: https://bibliotekanauki.pl/articles/123195.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: small retention reservoirs
contamination
biogenic compounds
trophy
Opis:: When considering the issue of the functioning of small water reservoirs, the attempt to assess changes in trophy of small retention reservoir located in Wasilkow, Podlasie, before and after remediation, was carried out. Water samples tests were carried out once a month from April 2007 to March 2008, from April 2009 to March 2010 (before remediation), and from April 2013 to March 2014 (after removal of silt). Prior to works related to the reservoir remediation, a gradual increase in the number of tested contaminants and disturbances in the seasonal occurrence of nitrogen and phosphorus compounds were observed. Advanced eutrophic processes in Wasilków reservoir occur probably due to the supply of large amounts of humic and biogenic substances from the catchment, because a significant percentage of its area is covered by forests and agricultural lands. The development of the trophic status of the reservoir is largely influenced by the amount of phosphorus and total nitrogen supplied to the reservoir; the least affected by chlorophyll “a”. Comparing the analyses performed in 2007/2008 and 2009/2010, a slight, but growing trend of average trophic levels of water in the basin Wasilków was found. Studies conducted in 2013/2014 revealed a significant decrease in the concentrations of all analyzed pollutants, and hence lower TSI values. It can be concluded that the reclamation associated with the removal of sediments brought the expected results.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 122-126
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Symptoms of Water Eutrophication in the Bachmaty Reservoir
Autorzy:: Siemieniuk, A.
Szczykowska, J.
Wiater, J.
Powiązania:: https://bibliotekanauki.pl/articles/123637.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: small retention reservoir
contaminants
biogenic compounds
trophic level
Opis:: When analyzing the symptoms of eutrophication and water quality in a small retention reservoir Bachmaty, an attempt to assess changes in its trophic condition before and after modernization, was undertaken. The study upon changes in water trophic level was carried out on a small retention reservoir Bachmaty located in Podlasie region on the Orlanka river in the municipality of Dubicze Cerkiewne. Tests of water samples collected from the surface layer of the coastal zone were performed once a month, and the time of the research was divided into two periods. The first period was conducted since April 2007 to March 2008 and since April 2009 to March 2010. The second research period included the time immediately after the reservoir reclamation, which ended in May 2011. The study was conducted since May 2011 to March 2012 and since April 2013 to March 2014. The trophic level of Bachmaty reservoir was also assessed according to the concentration criteria and based on the trophic status indices (TSI) calculated after Carlson’s as well as Kratzer and Brezonik’s. Reclamation of the reservoir, which consisted mainly in removing the sediments, caused a reduction in all TSI values. Analysing the overall trophic level index, i.e. the average of TSI (TP), TSI (TN), and TSI (Chl), water of the Bachmaty reservoir may be classified as eutrophic in individual years of the research, although a gradual decline in the TSI value could be observed directly after the reservoir modernizing. After testing it was found that the formation of the trophic level of Bachmaty reservoir was largely affected by the amount of total phosphorus supplied to the water. Water quality in the reservoirs, and also the content of phosphorus compounds is largely determined by external supply.
Źródło:: Journal of Ecological Engineering; 2015, 16, 4; 89-95
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Diversity of the TSI Indicators of the Middle-Forest Small Retention Reservoir
Autorzy:: Szczykowska, J.
Siemieniuk, A.
Wiater, J.
Powiązania:: https://bibliotekanauki.pl/articles/125039.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: small retention reservoirs
trophic state index
biogenic compounds
Opis:: Studies upon the trophic status were carried out using water samples from a small retention reservoir Topiło located in a particularly valuable natural forests of Puszcza Białowieska. In order to assess the degree of Topiło reservoir contamination, three measurement and control points were selected for testing, which were situated near the inflow (point No. 1) and outflow (point No. 3) of river Perebel, as well as in the middle part of the reservoir (point No. 2). The selection and placement of measurement and control points on the reservoir was dictated by the ability to capture changes in the study object. Tests of water samples collected from the surface layer of the coastal zone, were carried out once a month during the period from April 2007 to March 2014. The following determinations in collected water samples were performed: total nitrogen, total phosphorus, chlorophyll “a”, and turbidity. The trophic level of Topiło reservoir was also assessed according to the concentration criteria and based on the trophic status indices (TSI) calculated after Carlson’s as well as Kratzer and Brezonik’s. Given the annual average value of overall trophic level (Trophic Sta-tus Index), the dominant role of the TSI (TP) during all years of research attracts some attention. The TSI index values ranged within 78.3–80.26, which allowed to classify the water of Topiło reservoir as hypertrophic. The research indicates an advanced and constantly progressive degradation of water quality in Topiło reservoir. Values of TSI (Chl) were in the range of 49.2–77.35 and therefore water status in winter can be defined as eutrophic indicating the hypertrophy in remaining periods under study. Additional investments planned for advance reclamation treatments should be necessarily taken into consideration at the stage of planning and design of new small water retention reservoirs. Topiło reservoir requires modernization and reclamation, it is also necessary to clean it up, especially the bottom pond, out of the stocked wood residues, as well as to remove the excess of sludge.
Źródło:: Journal of Ecological Engineering; 2015, 16, 5; 54-61
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Late Glacial palaeoenvironmental changes in the southern part of the Holy Cross Mountains based on the “Białe Ługi” peatland record
Autorzy:: Okupny, Daniel
Malkiewicz, Małgorzata
Pawłowski, Dominik
Ludwikowska-Kędzia, Małgorzata
Borówka, Ryszard Krzysztof
Forysiak, Jacek
Michczyński, Adam
Jucha, Witold
Cybul, Piotr
Żurek, Sławomir
Powiązania:: https://bibliotekanauki.pl/articles/2025128.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biogenic deposits
chronostratigraphy
Małopolska Upland
multiproxy analysis
palaeoclimate
Opis:: This paper presents the Late Glacial stage of the development of the Białe Ługi peatland in the southern Holy Cross Mountains, based on a comprehensive palaeoenvironmental data. A complex analysis of palynology, Cladocera, sedimentology, geochemistry and 14C dating were used. Organic deposition was initiated during the Oldest Dryas. The sedimentary record of the aquatic and terrestrial ecosystems reflects considerable difference between cooler (Oldest, Older and Younger Dryas) and warmer phases (Bølling and Allerød). Periods of intensified interaction between aeolian processes and peatland are related to stages of disappearing vegetation and changes in aquatic invertebrate communities. We therefore suggest that peatlands were created as a result of local lithological-structural, tectonic, hydrogeological and morphological conditions, and the peatland development rate was largely influenced by changing climatic conditions, which determined local vegetation development, intensity of denudation processes and water level changes. The results validate significance of selection and use of several methods, as well as value of biogenic deposits from the Białe Ługi peatland as archives of past climate change in the Małopolska Upland. Relatively stable water conditions and uninterrupted biogenic sedimentation in the Late Glacial that were provided by the geological structure and relief suggest the studied peatland is a leading one in the region.
Źródło:: Studia Quaternaria; 2019, 36; 119-135
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Agricultural pollution and water quality in small retention reservoir in Korycin
Autorzy:: Szczykowska, J.
Siemieniuk, A.
Wiater, J.
Powiązania:: https://bibliotekanauki.pl/articles/124505.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: small water retention reservoir
pollutions
biogenic compounds
trophic
Opis:: The study aimed at determining the changes in the trophic status of the processes associated with the risk of eutrophication in small retention reservoir in Korycin, characterized by agricultural performance of direct and indirect catchment. The study was conducted using the surface water samples that were collected systematically every month over four hydrological years (2008 to 2014) from three research points. Mean annual concentration of total phosphorus varied from 0.641 mg P/dm³ during research conducted in 2007/2008 to 0.874 mg P/dm³ in 2013/2014 showing an increasing trend from year to year. Taking into account the calculated average values, an upward trend can be seen along with particular years of the study from the annual average value of 1.44 mg N/dm³ determined in the first year to the value of 2.66 mg N/dm³ recorded in the last year of the study. It was observed during the study that in non-flowing parts of Korycin reservoir, plankton developed more abundantly than in the central fragments, where the flow of water is more intensive. A mild growth of phytoplankton in the waters of Korycin reservoir is provided by relatively low concentrations of chlorophyll “a” found during all research periods. Concentrations of chlorophyll “a” in waters of the reservoir were within the range of 4.08 to 5.21 g/dm³. At a Schindler coefficient > 2, this value, based on the Decree of the Minister of the Environment of 2011, should not exceed 7 and therefore waters of the Korycin reservoir during the research can be classified as the first class. Values of the general trophic level (Trophic State Index) during the first three years of the study ranged from 67.15 to 68.65, which enabled to count waters of the reservoir in Korycin to eutrophic ones. In the last year of the analyzes, this coefficient increased to a value of 72.43, classifying its waters as hypertrophic. The largest share in such a situation was expressed by TSI (TP), which ranged from 97.34 to 101.82, always classifying the waters to hypertrophic ones. In contrast, the indicator TSI (TN) ranged from 59.71 to 68.57 and it classified the reservoir waters to eutrophic, while TSI (Chl) to mesotrophic.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 141-146
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Stratygraficzne zróżnicowanie wybranych cech geochemicznych osadów równin akumulacji biogenicznej przylegających do jezior Kuźniczek, Kuźnik Mały i Kuźnik Duży w Rezerwacie Przyrody Kuźnik
Autorzy:: Owsianny, P. M.
Nowaczyk, B.
Sobczyński, T.
Powiązania:: https://bibliotekanauki.pl/articles/294978.pdf
Data publikacji:: 2011
Wydawca:: Stowarzyszenie Geomorfologów Polskich
Tematy:: lake
water basin
biogenic accumulation plain
gytia
peat
geochemistry
Opis:: The article shows the stratigraphic diversity of chosen geochemical features of peatbogs deposits that are adjacent to Lakes Kuźniczek, Kuźniczek Mały and Kuźniczek Duży in Kuźnik wildlife reserve. Palaeoecological analysis of accumulation biogenic basins depositscan enable reconstructions of main changes of habitat conditions during the nearest history. Analysis of deposits lithology and geochemistry make possible to define hydrological conditions indispensable to produce special genetic types.
Źródło:: Landform Analysis; 2011, 16; 139-147
1429-799X
Pojawia się w:: Landform Analysis
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Lithology and geochemistry of the Late Glacial and Holocene sediments from Gostyń Lake (Western Pomerania, Myślibórz Lakeland)
Autorzy:: Korzeniowski, Andrzej
Okupny, Daniel
Michczyński, Adam
Sławińska, Joanna
Borówka, Ryszard K.
Powiązania:: https://bibliotekanauki.pl/articles/1366047.pdf
Data publikacji:: 2020-12-24
Wydawca:: Łódzkie Towarzystwo Naukowe
Tematy:: lakes
biogenic deposits
geochemistry
human impact
Holocene
western Poland
Opis:: Sediment geochemistry and lithology were studied in Gostyń Lake in the eastern part of the Myślibórz Lakeland (part of the Western Pomeranian Lake District). The research was undertaken because relatively shallow lake basins without ground supply contribute to the intensification of water circulation through evaporation. Late Glacial and Holocene phases in the evolution of Gostyń Lake were reconstructed based on selected geochemical indicators (Fe/Mn, S/Fe, Na/K, Mg/Ca, Cu/Zn, Na+K+Mg/Ca, Fe/Ca) as well as on the presence of human activity (Stone Age, Bronze Age, Early Iron Age and Roman Period). Also, the geochemical and archaeological data were correlated. Generally, the lithogeochemical composition variability in the Gostyń Lake deposits was found to be controlled by changes in: 1) the climate, related to the biogenic accumulation environment, 2) land cover in the Late Glacial and Holocene, and 3) human activities. Principal Component Analysis (PCA) revealed four major variable groups responsible for the changes: hydroclimatic variations which determined the type of sedimentary conditions during the Holocene climate optimum; changes in the organic matter provenance (along with conditions favouring sulphide precipitation); and denudation processes in the Gostyń Lake catchment. The methods used allowed the distribution of ancient settlement to be traced. Interpretation of the geochemical indicators (Fe/Mn, Cu/Zn, S/Fe, Ca/Fe) should involve many more factors which, in the relevant literature, are treated as measures of changes in redox conditions
Źródło:: Acta Geographica Lodziensia; 2020, 110; 149-168
0065-1249
Pojawia się w:: Acta Geographica Lodziensia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Concentrations of organic and biogenic pollutants in domestic wastewater after mechanical treatment in the aspect of biological reactor design
Autorzy:: Bugajski, P.
Pawełek, J.
Kurek, K.
Powiązania:: https://bibliotekanauki.pl/articles/101123.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: wastewater
organic pollutants
biogenic pollutants
mechanical treatment
bioreactor design
Opis:: The aim of the study was to determine the value and concentration indicators of BOD5, COD and general nitrogen in domestic wastewater after mechanical treatment, which should be considered in the design of the activated sludge reactor. Ninety-nine samples of raw wastewater and after mechanical treatment were then collected and physicochemical analysis was carried out. The quantity of pollutants in the raw wastewater was verified to determine if this was domestic wastewater. The next stage of the analysis included the definition of the characteristic quantity of the analysed indicators in wastewater after mechanical treatment, which should be taken into account while calibrating computer programs supporting the design of biological reactor chambers. A detailed analysis led to the conclusion that mean values for BOD5 - 300 mgO2·dm-3, for COD - 500 mgO2·dm-3and for total nitrogen 50 mgN·dm-3 should be applied. The work also determined the susceptibility of wastewater after mechanical treatment to the decomposition of organic and biogenic compounds.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/3; 1811-1822
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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