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Tytuł:
Złote glony (algi-zabójcy) jako zagrożenie dla gospodarki i przyrody Polski
Golden algae (“killer algae”) as a threat to Polands economy and nature
Autorzy:
Kapler, Adam
Powiązania:
https://bibliotekanauki.pl/articles/29433452.pdf
Data publikacji:
2024
Wydawca:
Mazowieckie Biuro Planowania Regionalnego w Warszawie
Tematy:
złote glony
Prymnesium parvum
prymnezyny
zakwit
HAB
klęska ekologiczna
Odra
starorzecza
Phoslock
La
biostabilizator jęczmienny
CuSo4
H2O2
PIX111
golden algae
prymnesins
algal bloom
HAB (harmful algal bloom)
ecological disaster
Oder River
Gliwice Canal
oxbow lakes
Lanthanum
coagulants
barley biostabilizer
Opis:
Bezprecedensowy zakwit „złotych alg” Prymnesium parvum w Odrze w 2022 r. był najgorszą klęską ekologiczną w Polsce i Niemczech od dekad. W 2023 r. udało się powstrzymać przenikanie „glonów-zabójców” z Kanału Gliwickiego, jak również zbiorników Czernica i Januszkowice do głównego nurtu Odry. Artykuł przedstawia aktualny stan wiedzy o tej katastrofie oraz wnioski z przeprowadzonych w Polsce, pionierskich testów metod wygaszania zakwitów w wodach płynących. Ponadto w niniejszej pracy zebrano i przedstawiono zagraniczne sposoby zwalczania „złotych alg” w stawach rybnych, na obszarach cennych dla przyrody, żeglarstwa i wędkarstwa, jak również restytucji fauny (w tym małży skójkowatych, istotnych tak dla gospodarki, jak dla ochrony przyrody) po masowym zakwicie P. parvum.
The unprecedented bloom of “golden algae” Prymnesium parvum in the Oder River in 2022 was the worst ecological disaster in Poland and Germany in decades. In 2023, the penetration of those “killer algae” from the Gliwice Canal, as well as the Czernica and Januszkowice reservoirs into the main stream of the Oder River has been stopped by the Polish Waters. The article presents the current state of knowledge about this catastrophe and draws conclusions from pioneering tests conducted in Poland on methods to mitigate blooms in flowing waters (in the Gliwice Canal). Additionally, this work compiles and presents foreign methods of combating “golden algae” in fish ponds, in areas valuable for nature, sailing and fishing, as well as fauna restitution (including Unionidae mussels, significant for both the economy and for nature protection) following a mass bloom of P. parvum.
Źródło:
MAZOWSZE Studia Regionalne; 2024, 48; 37-61
1689-4774
Pojawia się w:
MAZOWSZE Studia Regionalne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of water quality on the availability of phytoplankton and growth of Litopenaeus vannamei
Autorzy:
Musa, Muhammad
Thoyibah, Auliarifka A.
Puspitaningtyas, Dyah A.
Arsad, Sulastri
Mahmudi, Mohammad
Lusiana, Evellin D.
Maftuch, Maftuch
Huda, Agus S.
Powiązania:
https://bibliotekanauki.pl/articles/2203547.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
algae
aquaculture
canonical correspondence analysis
CCA
dynamics of water quality
principal component analysis
PCA
vannamei shrimp
Opis:
This research analysed the availability of phytoplankton and the growth rate of Vannamei shrimp in relation to water quality changes. The research was carried out in February-March 2021 for a half cycle of shrimp cultivation in two ponds of the Brackish Water Fish Culture Probolinggo Laboratory in Probolinggo, East Java, Indonesia. The research used a descriptive method and included a survey. Sampling was made every two weeks for two months. Nine parameters were measured and ten shrimps were taken for a specific growth rate (SGR) measurement once per sampling. Data were analysed using the principal component analysis (PCA) and canonical correspondence analysis (CCA). Secondary data of water quality were added for the PCA. The results show that the phytoplankton found in the first pond consisted of Chlorophyta, Chrysophyta, and Cyanophyta, whereas the phytoplankton in the other pond included Chlorophyta, Chrysophyta, Cyanophyta, and Dinophyta. The abundance of phytoplankton ranged from 12-80∙103 cell∙cm-3, which indicated eutrophic waters. The PCA demonstrated that pH, nitrate, and total organic matter (TOM) significantly influenced phytoplankton abundance in the pond. In addition, water quality parameters, such as temperature, transparency, salinity, nitrite and phosphate levels, were tolerable in both ponds for the growth of shrimps. However, the level of pH was lower than the aquaculture quality standard, whereas those of nitrate, ammonia, and TOM were higher. The growth rate of Vannamei shrimp increased by 0.76–7.34%∙day-1.
Źródło:
Journal of Water and Land Development; 2023, 56; 127--135
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of algae to remove copper and lead from industrial wastewater
Autorzy:
Cygnarowska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2202859.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
algae
sorption
heavy metals
lead
copper
Raphidocelis subcapitata
Opis:
The aim of the research was to evaluate the effectiveness of the removal of Cu and Pb ions by algae. The experiments were carried out in the presence of two algal populations: a pure culture of Raphidocelis subcapitata, and a mixed chlorophyta population. The research involved a model study, experiments in the presence of wastewater from the manufacture of batteries, and the study of process kinetics. The wastewater pH was 4.0, and the initial concentrations of metal ions in the wastewater were 95.4 mg/L for Pb and 48.3 mg/L for Cu, respectively. The maximum sorption capacity of the pure Raphidocelis subcapitata culture was 14.8 mg/g d.m. for Pb, corresponding to the removal of 72% of lead, and 6.1 mg/g d.m. for Cu, corresponding to the removal of 43% of copper from the wastewater. The best ion sorption efficiency in the case of the mixed chlorophyta population was 7.0 mg/g d.m. for Pb, i.e., 61% removal of lead, and 12.8 mg/g d.m. for Cu, i.e., 69% removal of copper ions from the wastewater. The optimum duration of the process was found to be 1 hour, since the majority of biomass samples reached the maximum saturation after that time. On the basis of the obtained results (Lagergren models), it was found that the dominant mechanism of the process was chemisorption.
Źródło:
Geology, Geophysics and Environment; 2023, 49, 1; 85--93
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algae as an alternative to the methods of production and use of conventional biomass (review article)
Autorzy:
Plata, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/31342803.pdf
Data publikacji:
2022
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
algae
bioeconomy
biofuels
biorefinery
Opis:
Algae have been present in the water treatments technologies, food for animals makingprocesses or even for diet supplements production for many years now. Recent years, however, have brought a number of ideas and discoveries for a wider use of these autotrophs. Their use is related to the broadly understood environmental protection and many threads of combating climate change. Currently, one of the most common ways of using algae is the production of liquid biofuels of the 3rd and 4th generation and unconventional biomass generation. Biofuels obtained from algae, in addition to lower amounts of harmful substances contained in them, are often characterized by a negative emission balance. It is related to the fact that those organisms, being in an exponential growth phase, assimilate the carbon dioxideneeded for photosynthesis. The production of energy substances from algae and microalgae in the teeth of draining fossil fuel deposits and their destructive impact on the environment. That sooth combined with the ease and low cost of culture, condition they become a real alternative to existing energy sources. Unique properties of algae linked with the fact that they are among the best, known biological energy converters opens the way to a number of opportunities to use them in other economic sectors. Certainly, the technological revolution in the energy market in addition to the requirement to create the most efficient reactors, in-depth research on the properties of fuels and the producers themselves still needs to be regulated by law. Algae can be grown in polluted waters, and the energy raw materials produced from them are able to reach (without emission logistic costs) a negative balance of CO2 emissions. This phenomenon and the fact that apart from fuels and biogas, they can be used for purposes such as carbon sequestration, creating energy biomass, medicines and dietary supplements, as well as food for animals, for example, the most reasonable choice would be to create advanced regulations regarding the closed- circuit policy in the energy sector, based precisely on biologically active organisms. This work focuses on gathering and presenting basic information regarding current technologies related to algae, their potential uses in the energy sector, and the long-term prospects for their development. It also takes into account the issues associated with the holistic nature of energy harvesting methods such as the one discussed.
Źródło:
Energy Policy Studies; 2022, 3 (11); 52-69
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection of Prorocentrum shikokuense in the Mediterranean Sea and evidence that P. dentatum, P. obtusidens and P. shikokuense are three different species (Prorocentrales, Dinophyceae)
Autorzy:
Gómez, Fernando
Zhang, Huan
Roselli, Leonilde
Lin, Senjie
Powiązania:
https://bibliotekanauki.pl/articles/2041940.pdf
Data publikacji:
2022-02-14
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Dinophyta
harmful algae bloom
invasive alien species
non-indigenous species
molecular phylogenetics
toxic phytoplankton
Opis:
A dinoflagellate identified as Prorocentrum dentatum, P. shikokuense or P. donghaiense is responsible of massive harmful events. Blooms of a species identified as P. shikokuense have been recently reported in the Mediterranean Sea, and an exotic origin, tentatively introduced by ballast waters from Asia, has been hypothesized. The molecular data based on the small-, large subunit, and internal transcriber spacers ribosomal RNA gene (SSU-, LSU-, ITS rRNA) sequences confirmed P. shikokuense in the Mediterranean Sea. The Mediterranean ribotype is identical to a subtropical North Atlantic ribotype, and with slight divergence from the numerous sequences from the Pacific Ocean. To revisit the relationship between P. shikokuense (=P. donghaiense) and P. obtusidens, we provide the first micrographs of P. dentatum and P. obtusidens, the latter collected from the type locality. Our observations indicate that P. dentatum, P. obtusidens, and P. shikokuense are three different species. Their diagnostic morphological characters are: Prorocentrum dentatum is 44–60 μm long, leaf-shaped, pointed and central posterior end, conspicuous anterior shoulder; P. obtusidens is 33–41 μm long, irregular parallelepiped, almost paralel valve margins, eccentric and pointed posterior end, moderate anterior shoulder; and P. shikokuense is <25 μm long, sunflower seed-shaped, round and centric posterior end, inconspicuous anterior shoulder.
Źródło:
Acta Protozoologica; 2021, 60; 47-59
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palynoflora and palaeoenvironment of the early Miocene palaeolake from the Bełchatów mine, central Poland
Autorzy:
Worobiec, Elżbieta
Worobiec, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2201201.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Palynology
palaeoclimate
palaeovegetation
Neogene
freshwater algae
central Europe
Opis:
The Bełchatów lignite deposits are a rich archive allowing palaeoenvironmental, palaeoecological and palaeoclimatic reconstructions from the Neogene and Quaternary periods. We describe the results of palynological studies (including non-pollen palynomorphs) of eight samples from the lower Miocene KRAM-P 211/214 collection of plant macroremains. The results of this palynological analysis are consistent with the results of previous studies of plant macroremains and significantly enrich our knowledge of vegetation and palaeoenvironment. Both studies indicate the presence of a freshwater body (a moderately large and deep lake) surrounded by wetland vegetation (including swamp forests with Glyptostrobus, Taxodium, Nyssa and Osmunda) and upland mesophytic forests. Evergreen or at least semi-evergreen forest communities grew along the ancient shores of the lake and on the slopes of the Mesozoic calcareus rocks surrounding the lake. In the lake, green algae (Pediastrum, Tetraedron and some Botryococcus) and freshwater peridinoid dinoflagellates were major components of the algal community. The same lake was the source of previously identified animal remains: freshwater fishes, molluscs, and mammals, including Megachiroptera bats. Our analysis shows that the climate was subtropical and humid, with an estimated mean annual temperature of 16.8–17.8°C.
Źródło:
Geological Quarterly; 2022, 66, 4; art. 66, no. 32
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Użyteczność alg w żywieniu trzody chlewnej
Usefulness of algae in swine nutrition
Autorzy:
Mirowski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/22391331.pdf
Data publikacji:
2022
Wydawca:
Krajowa Izba Lekarsko-Weterynaryjna
Tematy:
trzoda chlewna
komponenty pasz
glony
żywienie zwierząt
kwasy tłuszczowe wielonienasycone
nutrition
algae
swine
pig
Opis:
Researchers and nutritionists are looking for alternative sources of nutrients for animals. Several studies have shown that some algal species improve the nutritional value of animal feed rations. These organisms contain various biologically active substances, including health-promoting lipids. Supplementation may change meat fatty acid profile. Meat from pigs given marine microalgae contains higher levels of n-3 polyunsaturated fatty acids. These substances have beneficial effects on human health. Excessive intake of fatty acids from marine microalgae increases meat susceptibility to oxidation. The aim of this paper was to present the aspects connected with usefulness of algae in swine nutrition.
Źródło:
Życie Weterynaryjne; 2022, 97, 06; 389-391
0137-6810
Pojawia się w:
Życie Weterynaryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność sezonowa glonów planktonowych rozwijających się w wodach stawów zlokalizowanych w Parku Habsburgów w Żywcu
Seasonal variability of planktonic algae developing in water of ponds located in the Habsburg Park in Żywiec
Autorzy:
Jachniak, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2163403.pdf
Data publikacji:
2022
Wydawca:
Akademia Techniczno-Humanistyczna w Bielsku-Białej
Tematy:
glony planktonowe
stawy parkowe
planktonic algae
park ponds
Opis:
The aim of this research was to characterize the species structure and biomass of planktonic algae in the ponds of the Habsburg Park in Żywiec. This research was conducted in the 2018 vegetation season. The water samples for research were taken from two research points. The first research point was located in the north-west part of the park, in a sunny place, while the second research point was located in the south-eastern part of the park, in a shaded place. The phytoplankton biomass (given in wet mass) was calculated by comparing the phytoplankton organisms to geometric figures, and then measuring their volume. A special converter was used to convert volume to mass. Algae keys were used to identify planktonic algae species. The results of the conducted analyzes showed the variability of the phytoplankton biomass in the research season. The highest values of total planktonic algae biomass were recorded in the summer period, in turn, the lowest values were recorded in the spring and autumn periods at both research points. The following groups of planktonic algae were found on both research points: Bacillariophyceae, Chrysophyceae, Chlorophyceae, Cryptophyceae and Euglenophyceae. The conducted research showed that diatoms (59.6% share) and green algae (22.5% share) had the highest average percentage share in the total phytoplankton biomass on the first research point, whereas on the second research point the diatoms (66% share) and euglenins (15.3% share) had the highest average percentage share in the total phytoplankton biomass. The greatest species diversity was found among diatoms and green algae, in the remaining algae groups only two or three species of algae dominated. During the research, algae that prefer low fertile water were observed (e.g. Encyonema minutum (Hilse) D.G. Mann, Pinnularia sp.) and that prefer more fertile environments (e.g. Coelastrum astroideum De-Not., Aulacoseira granulata (Ehr.) Simonsen. Some of them belonged to ubiquitous algae, typical for various environments, e.g. Cryptomonas erosa and Ulnaria ulna (Nitzsch) Ehrenberg.
Źródło:
Polish Journal of Materials and Environmental Engineering; 2022, 4(24); 1-12
2720-1252
Pojawia się w:
Polish Journal of Materials and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Allelopathic effect of macroalgae Fucus vesiculosus (Ochrophyta) and Coccotylus brodiei (Rhodophyta) on the growth and photosynthesis performance of Baltic cyanobacteria
Autorzy:
Budzałek, Gracjana
Śliwińska-Wilczewska, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/2173111.pdf
Data publikacji:
2021-11-20
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
allelopathy
aqueous extract
brown algae
cyanobacteria
fluorescence
growth
macroalgae
red algae
allelopatia
brunatnice
ekstrakt wodny
fluorescencja
krasnorosty
makroglony
sinice
wzrost
Opis:
In aquatic ecosystems, allelopathic activity depends on the production and secretion of allelopathic compounds and their effective dispersal in the environment. In addition, macroalgae have been found to produce active metabolites that affect other organisms that compete with them for nutrients. However, the allelopathic activity of Baltic red and brown macroalgae on filamentous cyanobacteria is still insufficiently understood. Therefore, the main objective of this study was to demonstrate and compare the allelopathic effects of macroalgae Fucus vesiculosus L. and Coccotylus brodiei (Turner) Kütz. on the growth and photosynthetic activity of two Baltic cyanobacteria Aphanizomenon sp. and Nostoc sp. It was found a stimulating effect of different concentrations (5, 25, and 50 µL mL-1) of the aqueous extract obtained from C. brodiei on the number of cells of Nostoc sp. which constituted 108%, 140%, and 147%, respectively, relative to the control treatment. On the other hand, extracts obtained from F. vesiculosus had no statistically significant effect on the number of cells of the cyanobacteria Aphanizomenon sp. and Nostoc sp. Moreover, the C. brodiei extracts had no significant impact on the growth of Aphanizomenon sp. Furthermore, Baltic macroalgae F. vesiculosus and C. brodiei was able to exert allelopathic effects on photosynthesis performance of Nostoc sp. and Aphanizomenon sp. and compounds produced by them had inhibitory, stimulatory, or no significant effect on the maximum PSII quantum efficiency (Fv/Fm) and the effective quantum yield of PSII photochemistry (ΦPSII). The results obtained in this work constitute an important contribution to the knowledge on the allelopathic activity of Baltic red and brown algae on certain bloom-forming species of filamentous cyanobacteria.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2021, 6; 81-94
2543-8832
2545-0999
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Green Algae as a Way to Utilize Phosphorus Waste
Autorzy:
Tleukeyeva, Assel
Pankiewicz, Radoslaw
Issayeva, Akmaral
Alibayev, Nuradin
Tleukeyev, Zhanbolat
Powiązania:
https://bibliotekanauki.pl/articles/2027881.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Chlorella vulgaris
phosphorus-containing wastewater
algae
phosphorus-containing waste
agriculture
Opis:
The possibility of using phosphorus-containing wastewater as a raw material for the cultivation of the green algae strain Chlorella vulgaris ASLI-1 can represent an effective processing of phosphorus-containing by-products. A laboratory experiment was made to study the effect of the concentration of phosphorus-containing wastewater on the biomass density of the green alga strain Chlorella vulgaris ASLI-1. Three weeks after sowing, we measured the biomass density of algae in various components of the phosphorus-containing wastewater. Compared to the control (distilled water), the addition of phosphorus-containing wastes did not adversely affect the culture of green algae, with the exception of a 20% medium where algal cells were discolored and had a low biomass density, 104 CFU. However, more research is needed to better study the response of green algae to phosphorus-containing waste, to determine the amount of phosphorus in cells and solution. In addition, evaluate the agronomic efficiency of the Chlorella vulgaris ASLI-1 strain, cultivated on phosphorus-containing waste, when applying fertilizers for growing vegetables.
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 235-240
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Walls in a Container on the Growth of the Chlorella Vulgaris Algae
Autorzy:
Kondzior, Paweł
Butarewicz, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2027971.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
illumination
algae
Chlorella vulgaris
impact
aluminium foil
reflection
black paper
Opis:
Most of the algae are eukaryotic organisms commonly found in the aquatic environment. They are characterized by a great variety of species and the possibility of growing under various conditions. They photosynthesize, mainly needing light, water and carbon dioxide to grow. Algae can be used in various branches of the economy for the production of food, animal feed, bio-fertilizers, pigments, they can be used for sewage treatment or carbon dioxide sequestration. The aim of the work was to investigate the effect of the material from which the walls of containers are made on the bioreactors for algae cultivation. Two wall materials were used in the research: shiny aluminium foil and matte black light-absorbing paper. The content of photosynthetic pigments in algae cells, optical density, temperature and pH were examined. The tests were performed in triplicate and the standard error was calculated with the 95% confidence interval. It was observed that the glossy aluminium foil wall significantly improved the growth of the Chlorella vulgaris algae at the lowest light intensities by more than 4 times chlorophyll a compared to the sample placed in a container with walls of matte black paper. This means that the use of walls in shiny aluminium foil containers can reduce the lighting costs and contribute to an increase in the produced biomass.
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 98-108
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microalgae and cyanobacteria as biological agents of biocathodes in biofuel cells
Autorzy:
Koltysheva, D.
Shchurska, K.
Kuzminskyi, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2096852.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
biofuel cell
bioelectricity
biocathode
algae
added-value products
Opis:
Biofuel cells (BFCs) are an environmental friendly technology that can simultaneously perform wastewater treatment and generate electricity. Peculiarities that hinder the widespread introduction of this technology are the need to use artificial aeration and chemical catalysts, which make the technology expensive and cause secondary pollution. A possible solution to this issue is the use of biocathodes with microalgae and cyanobacteria. Microalgae in the biocathodic chamber produce oxygen as the terminal electron acceptor. Various BFC technologies with algal biocathode (microbial fuel cells, microbial desalination cells, and plant microbial fuel cells) can address a variety of issues such as wastewater treatment, desalination, and CO2 capture. The main technological parameters that influence the performance of the biocathode are light, pH, and temperature. These technological parameters affect photosynthetic production of oxygen and organic compounds by microalgae or cyanobacteria, and hence affect the efficiency of electricity production, wastewater treatment and production of added-value compounds in microalgae biomass like lutein, violaxanthin, astaxanthin. The ability to remove carbon, nitrogen, and phosphorus compounds; antibiotics; and heavy metals by pure cultures of microalgae and cyanobacteria and by mixed cultures with bacteria in the cathode chamber can be used for wastewater treatment.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 4; 437-444
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutrient Determinant Factor of Causing Algal Bloom in Tropical Lake (Case Study in Telaga Menjer Wonosobo Indonesia)
Autorzy:
Piranti, Agatha S.
Wibowo, Dwi N.
Rahayu, Diana R. U .S.
Powiązania:
https://bibliotekanauki.pl/articles/1838404.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
algae bloom
eutrophication
nutrient
Menjer Lake
Opis:
Nutrients are substances that are used by living organisms in the growth and survival of organisms. On the basis of this background, the aim of this study was to assess the concentration of nutrients (macro and micronutrients) and chlorophyll in the Menjer lake and to examine the relationship between nutrient concentration and algal biomass to identify the determinants of algal development in tropical lakes (Menjer Lake Wonosobo, Indonesia). The research was conducted using a survey method at Menjer Lake Wonosobo. Observations and sampling were carried out 3 times with intervals of 1 month at 7 locations in the photic zone. The concentrations of macronutrients and micronutrients in the Menjer Lake were spatially even in all locations and the temporally slightly increased concentrations were relatively the same during the measurement period. The Cu, NO2, Si, and Na macronutrients are the determining factors for algal blooming in Menjer Lake Wonosobo. The effect of Cu, NO2 and Si concentrations was inversely related to the algal abundance, while the Ca, Na and Mo concentrations were in line with the abundance of algae.
Źródło:
Journal of Ecological Engineering; 2021, 22, 5; 156-165
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Processing and Performance of Blended Biodiesel Produced from Microalgae Pediastrum Boryanum
Autorzy:
Chellappa, Thiago
da Silva, Raphael Eliedson
Filgueira, Mário Sérgio Gomes
Rabelo, Daniela Aisha Silva de Souza
Lira, Isadora Patriota de Aguiar
Bremgartner, Afra Raquel de Almeida
Bragato, Marcos
Santos, Dino Lincoln Figueirôa
Rosa, José Guilherme da Silva Santa
Chellappa, Naithirithi T.
Sanábio, Robson Guimarães
Nascimento, Rubens M.
Powiązania:
https://bibliotekanauki.pl/articles/2069909.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
biodiesel
diesel
algae
esterification
transesterification
residue
Opis:
In this present study, biodiesel was synthesized as per ASTM method by using algae as a raw material, which in the environment is considered as being a harmful waste and of a nature that blooms in ponds, lakes and reservoirs. In order to improve fuel quality, the transesterification process was carried out in this study so as to remove fatty acids and thereafter, analyze several fuel parameters of the biodiesel were determined. The calorific value of the biodiesel and its specific gravity was 42660 kJ/kg and 0.803 g/cm3 respectively. The viscosity of the sample was found to be 1.99. The cetane number of diesel fuel ranged from 40 to 55 and for the biodiesel it was found to be 47. The flashpoint and firepoint of the sample was recorded as 80°C and 94°C respectively. The conclusion is that it is worthy to mention that this process does not require high-end technology; hence, it could be used in the energy generation process in remote areas and as an alternative resource, as well.
Źródło:
Rocznik Ochrona Środowiska; 2021, 23; 243--262
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dasycladalean green algae and associated foraminifers in Middle Triassic (Lower and Middle Muschelkalk) carbonates of the south-eastern Germanic Basin (Upper Silesia, Poland)
Autorzy:
Bucur, Ioan I.
Matysik, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1836256.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Dasycladales
green algae
benthic foraminifera
Middle Triassic
Muschelkalk
Polska
Opis:
Middle Triassic dasycladalean algae occur in limestones and dolstones of the Diplopora Beds in Upper Silesia, a region representing the southern part of the Germanic Basin. The dasycladales assemblage of this area was studied by Kotański at the end of the last century, mostly from dolomitized and weathered material. The relatively well-preserved specimens the authors found in thin sections from undolomitized strata allowed the description and revised taxonomical assignment of the algae. The identified microflora includes: Diplopora annulatissima Pia, 1920, Diplopora annulata (Schafhäutl, 1853), Salpingoporella cf. krupkaensis Kotański, 2013, Physoporella prisca Pia, 1912, Physoporella cf. pauciforata (Gümbel, 1872), Holosporella? sp. 1, and Holosporella? sp. 2. Diplopora annulatissima and Favoporella annulata Sokač, 1986 are regarded here as two different species. Oligoporella elegans Assmann ex Pia, 1931, extensively illustrated and described by Kotański (2013), is considered a junior synonym of Oligoporella prisca Pia, 1912, and transferred to the genus Physoporella emended by Grgasovic, 1995. Also, some of the dasycladalean algae (Salpingoporella cf. krupkaensis, Holosporella? sp. 1, and Holosporella? sp. 2) described here could represent new species, but more well-preserved material is necessary. The algae are accompanied by foraminiferal microfauna, which collectively indicate a late Anisian (Illyrian) age of the strata studied.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 4; 391-407
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
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