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Упит dcterms_subject_txt:Forest biomass

46 items

  • Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)

    Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined. The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently ...
    ... heavier (~ 3 ‰ in the sample D13 and ~ 1 ‰ in the sample D16), showing more pronounced difference for type I kerogen, enriched in 13C from algal biomass. The results indicate that δ13C data should be used with caution in interpretation of samples having different maturity and particularly of liquid ...

  • Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

    Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)
    Stratigraphy,Economic Geology,Geology,Geophysics,Oceanography

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija
    ... of biomass. Energy Convers. Manag. 2001, 42, 183–188. [CrossRef] 55. Lowry, H.H. Chemistry of Coal Utilization; John Wiley & Sons Inc: New York, NY, USA, 1947; Volume 1, pp. 138–141. 56. Annamalai, K.; Sweeten, J.M.; Ramalingam, S.C. Technical Notes: Estimation of Gross Heating Values of Biomass Fuels ...
    ... hydrocarbon plastic materials, PE, and PP can be the source of hydrogen during the pyrolysis of hydrogen depleted natural products such as coal and biomass. In this way, pyrolysis of mixtures of coal and plastic hydrocarbon materials (co-pyrolysis) results in a balance of carbon and hydrogen contents, ...
    ... hydrogen [39], or semi-coke [36]). As for coal and hydrocarbon fuels, formulas for the calculation of the calorific value of plastic waste material and biomass plastic fuel were proposed [40,41]. Less attention was given to detailed characterization of all three (solid, gas, and liquid) products obtained by ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... significant biomass potential. Nevertheless, the biomass market is not yet developed, and the vast majority of the produced pellets and biomass briquettes are being exported to the countries of the EU. Although the low price of coal does not motivate investors to consider biomass as an important ...
    ... INTRODUCTION - BIOFUELS Biomass has basically been the principal source of energy used by mankind throughout history, either in the form of a) fuel wood or agricultural residues or b) carbonized biomass in the form of petroleum, natural gas and coal. The former types of biomass are renewable because ...
    ... origin from biomass. Due to its renewability and also the energy content, biomass is regarded as one of the renewable energy sources (RESs) together with other non-fossil sources of energy such as wind, solar, geothermal, ocean energy and hydropower. The specificity of biomass that puts it ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... use of biomass made of organic matter to generate energy While capturing and storing CO> from burning biomass resulting in negative emissions. BECCS is a negative emission technology as the technology removes more CO» emissions than it emits hence termed carbon neutral. Sources of biomass include ...
    ... include wood pellets hence the controversy surrounding the technology. Biomass is renewable as plants are regrown to replace old plants. BECCS could be sustainable in the near future since it produces energy while capturing GHGs. BECCS are operated in small scale due to its financial costs, and effects ...

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... 2.2. Capturing after combustion In post-combustion systems, CO2 is captured from the flue gases produced by combustion of fossil fuels and biomass in air, before they are released into the atmosphere. The fossil fuel fired power plants burn a fossil fuel, such as coal or natural gas, to generate ...

  • Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils

    Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)
    MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii
    ... Any mineral deposits adhered to the bottle walls were removed by scraping with a sterile inoculated needle. The pellets were centrifuged to remove biomass and extra nutrients, washed with sterile distilled water, and dried to constant mass. The amount of inorganic deposit and the kinetics of pH value ...
    ... and that the data fitted satisfactorily to the proposed model. From the moment of inoculation, the Urea concentration decreased constantly while biomass intensively multiplied for all ureolytic strains (Figure 4). The lag phase in Urea reduction was noticed in the first hour of Urea hydrolysis by B ...

  • Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit

    Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina (2023)

  • Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal

    Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)
    glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo
    ... adsorption processes using non-conventional low-cost activated carbons derived from renewable and inexpensive materials such as naturally abundant biomass, saccharides, agricultural and industrial wastes have been examined by different researchers [36–39]. In general, for potential practical application ...
    ... 3392–3399. [CrossRef] 10. Hameed, B.H.; Ahmad, A.A. Batch adsorption of methylene blue from aqueous solution by garlic peel, an agricultural waste biomass. J. Hazard. Mater. 2009, 164, 870–875. [CrossRef] [PubMed] 11. Kumar, P.S.; Ramalingam, S.; Sathishkumar, K. Removal of methylene blue dye from aqueous ...

  • The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments

    Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević (2013)
    The objective of the study was to determine the origin and type of organic matter (OM) of the Tisza recent sediments along the distance of 153 km through the territory of Serbia. For this purpose group organic-geochemical parameters and biomarker compositions were used. All samples contain approximately same amount of OM, which was deposited under uniform, slightly reducing conditions. Based on the distribution of n-alkanes, the origin and type of OM could not be precisely estimated. However, n-alkane patterns ...
    sediments, Tisza River, organic matter, biomarkers, oil pollutants
    ... maturity.1 On the other hand, elevated concentrations of odd long-chain homologues (C25–C33) show that terrestrial OM also contributed to the precursor biomass.5,6 It should be noticed that oil derivatives, such as gaso- line and diesel, have different n-alkane distributions, which range from n-C6 to n-C12 ...

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... branches and roots (Widera, 2012). Lignin (and lignin-derived macerals), being the main component, is considered the most difficult portion of plant biomass to degrade (DeAngelis et al., 2011). It has also been suggested that fos- silized resin, fixed in the form of terpenoid compounds, acts as an anti- ...
    ... L., Hugenholtz, P., Simmons, B., Sublette, K., Silver, W.L., Hazen, T.C., 2011. Characterization of trapped lignin- degrading microbes in tropical forest soil. PLoS One 6, e19306. https://doi.org/10. 1371/journal.pone.0019306. Detman, A., Bucha, M., Simoneit, B.R.T., Mielecki, D., Piwowarczyk, C., Chojnacka ...
    ... S.P., Patrick, W.H., 2006. Redox potential characterization and soil green- house gas concentration across a hydrological gradient in a gulf coast forest. Chemosphere 62, 905–914. https://doi.org/10.1016/j.chemosphere.2005.05.033. Životic, D., Stojanovic, K., Gržetic, I., Jovancicevic, B., Cvetkovic ...

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... heating systems in Serbia is completely based on combustion processes. Fossil fuels are dominantly used (99.5%), while the rest is related to wood biomass (Statistical Office of the Republic of Serbia 2017). Locally available energy sources such as municipal solid waste, waste heat from sewage wastewater ...

  • Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia

    Fen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic (2019)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... domestic energy source, from the Kolubara and Kostolac mine basins (Gajić et al.., 2018). The utilization of other RESs, such as solar, wind, and biomass, is still marginal, as independent producers have predominantly recorded their implementation and installation projects over the past decade. Specif- ...

  • P-T analiza uglja RB Kolubara

    Rada Vitomir (2024)
    Rudarski basen Kolubara predstavlja jedno od najvažnijih ležišta lignita u Republici Srbiji i ključni je faktor u snabdevanju zemlje energijom. Kvalitet uglja iz ovog basena direktno utiče na efikasnost termoelektrana i zadovoljenje energetskih potreba. U ovom radu, opisan je značaj tehničke i elementarne analiza uglja kako bi se utvrdili fizičko-hemijski parametri uglja iz Rudarskog basena Kolubara. U drugom delu rada dat je opis P-T analize uglja i njen značaj za ocenu mogućnosti čišćenja uglja. Takođe, dati su i rezultati ...
    Rudarski basen Kolubara, pliva tona analiza, lignit, kvalitet uglja, energetska efikasnost
    ... industrija, 67(5), 729-738. 10.Kleinhans, U., Wieland, C., Frandsen, F. J., & Spliethoff, H. (2018). Ash formation and deposition in coal and biomass fired combustion systems: Progress and 69 challenges in the field of ash particle sticking and rebound behavior. Progress in energy and combustion ...
    ... S., & Stajković-Srbinović, O. (2013). Agrochemical and microbiological properties of the 'Kolubara' open cast mine deposols recultivated under forest cultures. Zaštita bilja, 64(2), 110-115. 18.Stanišić, V., & Bošković, A. (2020). Održivi razvoj u upravljanju rudarskim otpad om — Primer Republike ...

  • Појава НИМБИ синдрома међу становништвом Лознице и околине услед планираних рударских активности

    Сара Арсенић (2024)
    Рад обрађује историјски развој нимбизма, његову анализу, природе и димензије, и његово превазилажење. Анализа се фокусира на планиране рударске активности у околини Лознице и њихов утицај на ставове локалног као и околног становништва и стручне јавности укључујући резултате испитивања јавног мњења кроз анкету. Анкета садржи тринаест питања и рађена је за три групе: становници Београда и околине, Лозница и оклоина и стручна јавност. Такође се и разматра како се различити политички и еколошки фактори манифестују у овом контексту, као ...
    нимби синдром, пројекат „Јадар“, отварање рудника, анкетирање јавног мњења
    ... 23 July 2013, Revised 6 August 2014, Accepted 8 August 2014, Available online 28 August 2014. [14] How, B. S., & Lam, H. L. (2017). Integrated biomass supply chain in Malaysia: a sustainable strategy. Chem. Eng. Trans., 61, 1573–1578 [15] Partisan Probing and Democratic Decisionmaking Rethinking ...

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... colored mat, formed in shallow water, was also analyzed. Light microscopy revealed the presence of the green filamentous algae on the surface of the biomass, while T-RFLP analysis of the 16S rRNA genes amplified from metagenomic DNA isolated from the mat revealed significantly higher bacterial diversity ...

  • Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака

    Зоран Гојковић (2023)
    Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...
    Сентинел 1 интерферометрија, слегање, Перманентни скатерери, Костолац

  • Multivarijabilni modeli upravljanja u rudarstvu

    Marjan M. Hudej (2014-02-03)
    osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...
    rudarstvo, odlučivanje, upravljanje, model,multivarijabilno, multiatributno, multikriterijumsko
    ... Stojiljković, M., Proces donošenja odluka, VIZ, Beograd, 1975. 86. Sultana, A., Kumar, A., Ranking of biomass pellets by integration of economic, environmental and technical factors. Biomass and Bioenergy, 39, 2012, 344–355. 87. Šolar S. V., Strgar I., Izbor ležišta mineralnih sirovina za građ ...