Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "microbial structure" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    Treatment Efficiency and Characteristics of Biomass in a Full-Scale Wastewater Treatment Plant with Aerobic Granular Sludge
    Autorzy:
    Cydzik-Kwiatkowska, A.
    Podlasek, M.
    Nosek, D.
    Jaskulska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/124752.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    next-generation sequencing
    microbial structure
    full-scale wastewater treatment plant
    wet sieving
    wastewater temperature
    aerobic granules
    Opis:
    Recently, studies have been carried out on an implementation of aerobic granular sludge (AGS) technology in full-scale wastewater treatment plants. The aim of the work was to evaluate the effectiveness of organic, phosphorus and nitrogen compounds removal from municipal wastewater and to characterize the biomass in a wastewater treatment plant upgraded from the activated sludge to AGS technology. In the upgraded facility, granulation was obtained quickly and it was observed that the granule morphology depended of the temperature. In the granular biomass harvested at moderate temperatures in the reactor (15°C), the granules with diameters in the range from 125 to 500 μm constituted the largest share (about 60%), while the second-largest biomass fraction comprised the granules with diameters over 1 mm (25%). The analysis of granule diameters carried out in winter (the temperature in the reactor equaled 8°C) showed a decrease in the share of the largest granules and predominance of the granules with diameters in the range from 90 to 355 μm (about 75%). Upgrading the municipal wastewater treatment plant from activated sludge to aerobic granular sludge significantly improved the settling properties of the biomass and efficiency of wastewater treatment. The average efficiency chemical oxygen demand (COD) and phosphorus removal increased by about 10% and 20%, respectively, while ammonium nitrogen was completely oxidized, regardless of the season. After modernization, the concentration of nitrates in the effluent increased significantly to about 3-6 mg/L. The results of the study show that it is possible to effectively upgrade the existing facilities to aerobic granular sludge technology; it was also proven that this technology is an excellent alternative to a conventional activated sludge.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 4; 95-102
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of climate change on microbial community structure and function in the Antarctic glacier lagoon
    Autorzy:
    Swiatecki, A.
    Gorniak, D.
    Jankowska, K.
    Zdanowski, M.K.
    Borsuk, P.
    Zmuda-Baranowska, M.J.
    Grzesiak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/11992.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    climate change
    microbial community
    community structure
    community function
    Antarctic
    glacier lagoon
    glacier recession
    Opis:
    One of the dramatic effects of global warming is the retreat of glaciers. This phenomenon has intensified in the last two decades. Postglacial areas are quickly colonised by various groups of organisms. Auto- and heterotrophic microorganisms play an especially vital role in these processes. They thrive in shallow glacial lagoons which often form in front of retreating glaciers. These reservoirs are characterised by high dynamics of physicochemical parameters, including: salinity, temperature and concentrations of organic compounds and nutrients. The conducted microbiological studies have revealed rich structural and functional diversity of bacteria occurring in the ecosystem of Ecology Lagoon situated on King George Island. Bacteria found on the surface of algae and stones in the shore zone of the lagoon showed particularly intense metabolic activity. A molecular analysis has indicated that unique taxonomic groups of bacteria occur in the ecosystem of Ecology Lagoon.
    Źródło:
    Papers on Global Change; 2010, 17
    2300-8121
    1730-802X
    Pojawia się w:
    Papers on Global Change
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of management practices on soil organic matter, microbial biomass and aggregate stability of Orthic Luvisol
    Autorzy:
    Dabek-Szreniawska, M.
    Kus, J.
    Balashov, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/26463.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    organic matter
    soil quality
    Orthic Luvisol
    soil structure
    microbial biomass
    aggregation
    soil
    aggregate stability
    Źródło:
    International Agrophysics; 2004, 18, 4
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wyjaśnienie elementów homeostazy niklu(II) i cynku(II) u bakterii i grzybów
    Explaining elements of nickel(II) and zinc(II) homeostasis in bacteria and fungi
    Autorzy:
    Rowinska-Żyrek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/172088.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    transport Zn2+
    transport Ni2+
    homeostaza metali drobnoustrojach
    układ metal-peptyd
    struktura układów metal-peptyd
    termodynamika układów metal-peptyd
    Zn2+ transport
    Ni2+ transport
    microbial metal homeostasis
    metal-peptide structure
    metal-peptide thermodynamics
    Opis:
    In the last 30 years, no new class of antibiotic was developed, and resistance to these already existing has increased dramatically. It seems reasonable to search for new classes therapeutics, targeting metabolic pathways, which standard therapies do not aim at. One of the biggest obstacles in finding effective and specific antibacterial and antifungal agents, which do not cause serious side effects in patients, is due to the fact that micro-organisms share many basic metabolic pathways with their human hosts. One of the significant differences may be the transport system and homeostasis of Zn2+ and Ni2+. The review sheds new light on the homeostasis of the two metals in bacteria and fungi. The main points are: (i) determination of Zn2+ binding sites on the C. albicans Pra1 zincophore and in the N-terminal domain of the C. albicans Zrt1 zinc transporter; description of the geometry and thermodynamics of such binding (Fig. 5 and 6); (ii) understanding of the bioinorganic chemistry of zincophore based Zn2+ transport (understanding Pra1-Zrt1 interactions); suggesting how Zn2+ is delivered from the zincophore to the zinc transporter (Fig. 7); (iii) defining the specificity of zincophore-based transport; showing that they can also transport Ni2+ ions; (iv) pointing out Zn2+ binding sites on amylin1-19 and pramlintide – amylin’s non-aggregating analogue; describing the thermodynamics of the process (Fig. 10) and suggesting the potential effect of Zn2+ coordination on the antimicrobial effectiveness of amylin (Fig. 11 and 12); (v) defining how the non-coordinating poly- Gln region affect the structure and how it increases the thermodynamic stability of nickel complexes of the N-terminal region Hpn-like, a microbial Ni2+ storage protein (Fig. 13); (vi) indicating the specific regions of proteins with polyHis and polyGln regions, which are most likely to bind Ni2+ and Zn2+; (vii) explaining the effect of pH and Ni2+ binding to the N-terminal domain of HypA, a bacterial protein involved in the maturation of hydrogenase (Fig. 14 and 15); (viii) explaining the average efficiency and selectivity of HupE, a bacterial Ni2+ transporter (Fig. 16 and 17). This new piece of knowledge is an interesting contribution to the beautiful, basic bioinorganic chemistry, which allows for a better understanding of basic mechanisms in biology and can be the basis in the design of effective, specific and selective drugs to be used in anti-microbial therapy, e.g. of traditional drugs combined with a part of a zincophore, which is specifically recognized by the fungus. First biological studies, which show that Candida albicans recognizes the C-terminal region Pra1, have already been carried out (see Figure 8 and its description).
    Źródło:
    Wiadomości Chemiczne; 2018, 72, 7-8; 469-496
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies