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Tytuł:
Evaluation of the Energy Capacity of the Controlled Landfill from Mohamedia Benslimane by Three Theoretical Methods – Land Gem, IPCC, and TNO
Autorzy:
Oukili, Ahlam Idrissi
Chhiba, Mostafa
Powiązania:
https://bibliotekanauki.pl/articles/2202375.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
controlled landfill
municipal solid waste
biogas
first order decay model
electrical energy
Opis:
The objective of this study was to estimate the content of methane produced and generated by the anaerobic biodegradation of the main organic fraction of municipal solid waste from the controlled landfill of Mohammedia-Benslimane (Morocco) by three theoretical models, based on the first order decay equation: LandGEM, IPCC and TNO. To carry out this study, the quantities of solid waste buried in this landfill since its inauguration in 2012 were used and the composition of the biogas in-situ in 2020 and 2021was determined. The quantities of waste that will be buried in this landfill from 2022 to 2032 were estimated by projection.The results of the analysis of the biogas generated in this controlled landfill in 2020–2021 indicate that it is composed of 59.59% CH4, 38.9% CO2, and 0.14% O2. This result indicates that the waste is in a stable methanogenesis phase. The results obtained by using the three methodologies show that the total volume of CH4 generated during the period 2012–2021 was 32.59 Mm3 according to the IPCC model, 20.95 Mm3 according to the LandGEM model and 20.96 Mm3 according to the TNO model. The total volume of CH4 that will be produced during the period 2022–2032 has been projected to 107.48 Mm3 by the IPCC model, to 76.84 Mm3 by the LandGEM model, while the total volume of CH4 projected under the TNO method will be 67.67 Mm3. The maximum methane production will reach a value of 12.07 Mm3, 9.46 Mm3 and 7.82 Mm3 for the IPCC, LandGEM and TNO models, respectively. In 2021, the volume of methane estimated by the three models is higher than that on-site measurement by a factor of 3.5(IPCC), 2.4 (LandGEM) and 2.3 (TNO). The results clearly indicate that the three models over predict methane generations when compared to the on-site generations. According to the LandGEM methodology, the electricity estimated will reach a maximum value of 33 GWh/year in 2032.The efficient use of methane generated by this controlled landfill as a source of electrical energy in the upcoming years can be an option for the sustainable management of waste.
Źródło:
Journal of Ecological Engineering; 2023, 24, 2; 19--30
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gases in the near-surface zone of the reclaimed Barycz municipal waste landfill – a case study from southern Poland
Autorzy:
Kopera, Paulina A.
Sechman, Henryk
Twaróg, Anna
Powiązania:
https://bibliotekanauki.pl/articles/27310119.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
landfill
emission
surface distribution
methane
carbon dioxide
biogas
hydrocarbons
Opis:
The formation of biogas at municipal landfills and the significant emission of greenhouse gases from these facilities into the environment were the main reasons for analyzing the molecular composition of soil gas in the near-surface zone at the reclaimed part of the Barycz municipal waste landfill. The relations between the studied components (methane, carbon dioxide, light hydrocarbons and non-hydrocarbon components) and impact of the magnitude of recorded concentrations of methane and carbon dioxide on their emission to the atmosphere were evaluated. Two profiles were determined, along which 41 soil and landfill gas samples were taken at 20-meter intervals. At the same time, emissions were measured at each sampling point using a static chamber with a portable fluxometer. Chromatographic analysis showed that the concentrations of methane and carbon dioxide fluctuated in the ranges: 2.1 ppm – 76 vol% and 0.04 ppm – 11 vol%, respectively. Relatively high concentrations of these gases were determined at many of the measurement points, and this was particularly evident at the A-A’ profile, indicating stronger biochemical processes in this part of the landfill, or lateral migration of methane from the neighbouring stage II of the landfill, where biogas extraction is currently taking place. In addition, significant correlations between methane, carbon dioxide, and oxygen were demonstrated, indicating ongoing methane fermentation processes. Based on the study, it can be concluded that the southern part of the A-A’ profile is an optimal place to locate a degassing well from which biogas production could be used. However, the research is only preliminary and, it will be necessary to extend the soil gas tests before the final decision on the location of the well is made. Moreover, it has been shown that the concentrations of methane and carbon dioxide measured at points located outside the landfill were low. This means that generated biogas probably does not migrate beyond the boundaries of reclaimed waste landfill, but this will need to be confirmed by performing additional soil gas tests inside and outside the landfill area. The preliminary assessment of the effectiveness of the reclamation carried out was confirmed by the negligible values of the measured methane and carbon dioxide emissions on the surface.
Źródło:
Geology, Geophysics and Environment; 2023, 49, 2; 101--121
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Landfill leachate migration modeling using the LandSim software. Case study of Gigoš Regional sanitary landfill
Autorzy:
Petrović, Natalija
Vasović, Dejan
Nešić, Bratimir
Petrović, Nemanja
Powiązania:
https://bibliotekanauki.pl/articles/28407394.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
waste migration
landfill
concentration of pollutants
heavy metals
migracja odpadów
składowisko
stężenie zanieczyszczeń
metale ciężkie
Opis:
The paper aims to provide insight into data on leachate migration, composition, and migration time and to improve the engineered barrier system (EBS) importance through different pollutant concentrations in the landfill at the base of the unsaturated zone and off-site, for the real-case scenario with composite liners (EBS) and the worst-case scenario with no liners (NO EBS) using the Land Sim software for 30, 100, 1000 and 20 000 years in 1000 iterations. Also, the paper aims to analyze the leachate leakage through the waste for different migration times and different internal layers to create a qualitative and quantitative basis for assessing leachate’s impact on the environment. The results obtained by modeling the parameters of the real case at the Gigoš landfill showed that the leachate leakage amount is about 340 times lower when EBS is present and concentrations of nitrogen, chlorides, arsenic, lead, cyanides, and mercury in the worst-case scenario (NO EBS) exceed the permitted limits according to the laws of the Republic of Serbia.
Źródło:
Environment Protection Engineering; 2023, 49, 4; 89--108
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leachates Recirculation Impact on the Stabilization of the Solid Wastes – A Review
Autorzy:
Hussein, Omar Amer
Ibrahim, Jathwa Abd-Alkareem
Powiązania:
https://bibliotekanauki.pl/articles/24201719.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
solid waste management
leachate recirculation
landfill leachate
solid waste stabilisation
Opis:
In most countries, controlled landfills are currently the most common disposal method for municipal solid wastes (MSWs). Despite many benefits, the generation of heavily contaminated leachate with substantial differences in both chemical composition and flow rate represents a major drawback. The realization of this has compelled authorities to adopt ever more stringent establishment of pollution control requirements. Landfill leachate is a serious problem in the treatments of municipal solid wastes using landfills methods. This leachate is usually heavily contaminated, but little attention is paid to its treatment. Optimal treatment of leachates to completely decrease the harmful environmental impacts is today’s challenge. However, the complex composition of leachates makes it challenging to formulate general recommendations. Leachate variability, particularly over time and within sites, suggests that the most appropriate treatments are adaptable, universal, and simple. Landfill leachate is characterized by high biological and chemical oxygen demand and is usually composed of undesirable ingredients such as inorganic and organic pollutants. Landfill leachate varies with landfill age and content, decomposition methods, hydrological and climate conditions. Recirculation of leachate does not affect alterations in the degree of bio-degradability of the waste. During landfill operations, recirculation of leachate is often applied to help stabilize landfill degradation. Leachate recirculation is widely used in practical engineering, and recirculation using vertical wells is one of the more effective methods.
Źródło:
Journal of Ecological Engineering; 2023, 24, 4; 172--183
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recycling and household waste insight : the impact after four successive waves of the COVID-19 pandemic. Study in Guelma city, North-East of Algeria
Autorzy:
Mesbahi-Salhi, Amina
Kaizouri, Mohamed
El Mouaz Madoui, Bachir
Rezaiuguia, Wafa
Bouslama, Zihad
Powiązania:
https://bibliotekanauki.pl/articles/27311554.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
COVID-19
household waste management
landfill
recycling
recykling
wysypisko śmieci
odpady komunalne
odpady z gospodarstw domowych
Opis:
The coronavirus disease 2019 (COVID-19) pandemic has wreaked havoc especially in 2020 and the first half of 2021 and has left severe after-effects affecting not only the health sector but also all aspects of human life. The aim of this study is to inspect the current trends of the quantities of household waste produced during the first four waves of the pandemic. The study was carried out in Guelma city, northeastern of Algeria, where the first containment was registered on February 25, 2020, it concerns an Italian national (Mohamed et al. 2021). An increase in the production of household waste of approximately 14% during the first containment was recorded in the study area, with the interruption of recycling, which caused an enormous pressure on the technical landfill center of Guelma. The results showed that the trend of waste production decreased at the following averages: 205.80; 198.92; 196.69 and 192.43 tons, for the first four waves of COVID-19 respectively. Therefore, a return to the pre-pandemic state would be close, which dampens the impact and pressure on the landfill and the environment. This research allows for perceiving the waste management status in Algeria, between the pandemic and post-pandemic period.
Źródło:
Archives of Environmental Protection; 2023, 49, 1; 103--109
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of landfill protection systems in Japan – a case study
Ocena systemów ochronnych składowisk odpadów w Japonii – studium przypadku
Autorzy:
Jakimiuk, A.
Matsui, Y.
Podlasek, A.
Vaverková, M.D.
Powiązania:
https://bibliotekanauki.pl/articles/28765740.pdf
Data publikacji:
2022
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
Japan
waste management
sanitary landfill
sealing
solid waste landfill
municipal waste landfill
untreated waste
case study
Źródło:
Acta Scientiarum Polonorum. Architectura; 2022, 21, 4; 21-31
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency Analysis of the Generation of Energy in a Biogas CHP System and its Management in a Waste Landfill – Case Study
Autorzy:
Ciuła, Józef
Generowicz, Agnieszka
Gaska, Krzysztof
Gronba-Chyła, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2173248.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
cogeneration
energy efficiency
energy ratio
landfill gas
municipal waste
renewable energy
Opis:
As a waste neutralization facility, the landfill is a kind of bioreactor producing landfill gas or (LFG) - biogas, which should be captured and neutralised for environmental reasons. One of the ways of its utilisation is the combined production of heat and electrical energy in combined heat and power (CHP) cogeneration systems. For that purpose, the assessment of the energy efficiency of a cogeneration unit was undertaken in this work on the basis of the unit performance over the last 5 years. The analysis of the CHP system energy performance demonstrated that the ratios range at the lower limits for units up to 0.5 MW. The lower efficiency of fuel chemical conversion in the CHP plant (0.70) stems from the failure to use the rated thermal and electrical power fully (74.2%), which is caused by the insufficient stream of biogas collected from the landfill (161.46 m3∙h-1). The analysis of the generated energy usage, particularly in terms of heat, has shown a surplus which is not used and therefore is a loss. The proposed solutions in this area should optimize the use of heat generated from the renewable source, i.e. landfill biogas.
Źródło:
Journal of Ecological Engineering; 2022, 23, 7; 143--156
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
LandGEM Biogas Estimation, Energy Potential and Carbon Footprint Assessments of a Controlled Landfill Site. Case of the Controlled Landfill of Mohammedia-Benslimane, Morocco
Autorzy:
Oukili, Ahlam Idrissi
Mouloudi, Meriyem
Chhiba, Mostafa
Powiązania:
https://bibliotekanauki.pl/articles/2068464.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
municipal solid waste
LandGEM
methane
carbon footprint
greenhouse effect
electrical energy
Opis:
Landfills throughout the world are contributing to the global warming problem. This is due to the existence of the most important greenhouse gases in landfill gas; namely, methane and carbon dioxide. Methane has a high potential for energy production and by utilizing the proper technology, large amounts of energy can be extracted from it. This paper deals with the estimation of methane emissions from the controlled municipal solid waste landfill of Mohammedia-Benslimane (MB) in Morocco. Methane emissions were calculated using the LandGEM method. In this research, the following parameters were evaluated: the amount of landfilled waste, the characteristics of the landfill and the composition of the landfilled waste, as well as the climatic conditions prevailing in the region. According to the LandGEM model, the total amount of methane generated from approximately 3.663 E+06 kg of municipal solid waste that will be buried of in the MB controlled landfill over 20 years,2012 to 2032, is 1.76 E+08 m3. For the year 2020, the estimated electrical energy production in the landfill is 1.78 E+07 kWh. Regarding the carbon footprint for this landfill, the landfilling of household solid waste at the MB landfill has resulted in a production of about 499,238,000 kg CO2e in 2020 since its opening in 2012, according to the LandGEM model. These huge amounts of greenhouse gas are related to the fact that the waste buried at this landfill is highly organic. By installing an efficient system to capture and flare the biogas generated in this landfill, the management of this landfill is actively contributing to the protection of the environment by mitigating greenhouse gas emissions, particularly methane.
Źródło:
Journal of Ecological Engineering; 2022, 23, 3; 116--129
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Opinia na temat projektu nowelizacji dyrektywy w sprawie emisji przemysłowych (zintegrowane zapobieganie zanieczyszczeniom i ich kontrola) i dyrektywy w sprawie składowania odpadów (COM(2022) 156 final)
Opinion on the Draft Amendment of Directive on industrial emissions (integrated pollution prevention and control) and Directive on the landfill of waste (COM(2022) 156 final)
Autorzy:
Sobolewski, Mirosław
Jaroszyński, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2194654.pdf
Data publikacji:
2022
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
environmental protection
industry
European Union
Opis:
The subject of the proposal is an amendment to the Industrial Emissions Directive (so-called IED) as a core legal act regarding the prevention and control of pollution emitted by large industrial installations. The proposed amendments include, inter alia, the tightening of permissible emission limits, the introduction of additional substances and obligations covered by permits, and increased access to emission permit proceedings for third parties. The aim of the proposed solutions is to raise the level of environmental protection while stimulating innovation and ensuring a level playing field in the EU market.
Źródło:
Zeszyty Prawnicze BAS; 2022, 3(75); 80-91
1896-9852
2082-064X
Pojawia się w:
Zeszyty Prawnicze BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of Solid Waste Landfills Under Earthquake-Induced Vibrations
Autorzy:
Seyedi Marghaki, Behnaz
Soltani, Fazlollah
Noroozinejad Farsangi, Ehsan
Sivandi-Pour, Abbas
Powiązania:
https://bibliotekanauki.pl/articles/27314724.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
landfill
earthquake
walls stability
geosynthetics
FEM
ABAQUS
rupture
numerical modelling
wysypisko śmieci
trzęsienia ziemi
stabilność ścian
geosyntetyki
MES
modelowanie numeryczne
Opis:
The stability inside the waste, internal stability, and co-stability between the elements of the insulation system and the landfill bed should be considered in the landfill design. The stresses and the resulting deformations in both mineral and geosynthetic materials of the insulation system must be controlled in the design, so that an unpredictable flow path is not created. Besides, long-term durability in the insulation system should be considered. An evaluation of the durability of the system requires knowledge of the interaction between the components and the waste as a settling object. The numerical modeling methods can be used to evaluate the local instability. In this study, a landfill constructed in the UK has been modeled in ABAQUS finite element platform and was verified with the results of obtained data from precision instruments at the landfill site. Then, by applying the earthquake excitations, the seismic behavior of the solid waste landfill under Far-Field and Near-Field earthquakes and their effect on the durability of the landfill wall system were investigated. The outputs include maximum displacement, maximum stress, the most critical state, and investigation of yield stress and rupture of the geomembrane layer. The results indicated that in the landfill wall, the maximum displacement occurs in the waste section. It occurs especially between the boundary of natural soil and waste. It was also observed that the geomembrane layer under the earthquake loadings had experienced some ruptures.
Źródło:
Civil and Environmental Engineering Reports; 2022, 32, 2; 1--22
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physico-Chemical Characterization of Leachate from the Moulay Abdallah Technical Landfill Center (Morocco)
Autorzy:
Rhoualem, Faïza
El Hadiri, Hassane
Oukour, Nabil
Taouil, Hamid
Arouyaa, Khalid
Ahmed, Said Ibn
Powiązania:
https://bibliotekanauki.pl/articles/2173278.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
leachate
characterization
waste
landfill
Moulay abdellah
Opis:
The physico-chemical characterization of the leachate from the Technical Landfill Center (TLC) of Moulay Abdallah (MA) which is intended for the treatment of Household Waste (HW) and Waste Assimilated to Household Waste (HWA) as well as the elaboration of the results of the study that was carried out on the leachate from the Oum Azza (OA) Technical Landfill allowed comparing the leachate from two TLCs located in two different regions and exploited in two different ways. The parameters studied are Organic Matter (OM), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD5), Total Kjeldahl Nitrogen (TKN) concentration, NH4+ ion concentration, conductivity, Suspended Solids (SS), Total Phosphorus (TP) and pH. The choice of these parameters comes down to their usefulness for the sizing of the leachate purification processes (PP) of the leachates of Moroccan typology, produced by the population of a coastal city. The results of the analyses show that the leachates from the two TLCs have almost the same physico-chemical characteristics. Depending on the method of management of the leachate (storage or direct discharge to the wastewater treatment plant (WWTP)), the evolution over time of these characteristics differed from one TLC to the other and all of the main leachate parameters from the TLC MA have all tended to increase over the time of operation. This is in contrast to the leachate parameters from the OA TLC, which all tended to decrease.
Źródło:
Journal of Ecological Engineering; 2022, 23, 8; 241--248
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review of technical methods of landfill sealing and reclamation in the world
Przegląd technicznych metod uszczelniania i rekultywacji składowisk odpadów na świecie
Autorzy:
Jakimiuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/2083837.pdf
Data publikacji:
2022
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
waste
landfill reclamation
synthetic barrier
leachates
Opis:
Landfills, even properly designed, constructed, and operated, are facilities that in the future can be a potential source of pollution of surface and groundwater and atmospheric air. Especially, old municipal landfills were very often established in inappropriate soil and water conditions, which contributed much more to the release of toxic leachate into the ground. This happened due to lack of sufficient regulation and control systems in this area. Reclamation of degraded sites became a kind of rescue for contaminated areas. However, this process was not always carried out in a proper way. This study presents the trends of landfills sealing and their reclamation over the years in different countries.
Źródło:
Acta Scientiarum Polonorum. Architectura; 2022, 21, 1; 41-50
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review of technical methods of landfill sealing and reclamation in the world
Przegląd technicznych metod uszczelniania i rekultywacji składowisk odpadów na świecie
Autorzy:
Jakimiuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/2106763.pdf
Data publikacji:
2022
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
waste
landfill reclamation
synthetic barrier
leachates
odpady
rekultywacja składowisk
syntetyki
odcieki
Opis:
Landfills, even properly designed, constructed, and operated, are facilities that in the future can be a potential source of pollution of surface and groundwater and atmospheric air. Especially, old municipal landfills were very often established in inappropriate soil and water conditions, which contributed much more to the release of toxic leachate into the ground. This happened due to lack of sufficient regulation and control systems in this area. Reclamation of degraded sites became a kind of rescue for contaminated areas. However, this process was not always carried out in a proper way. This study presents the trends of landfills sealing and their reclamation over the years in different countries.
Składowiska odpadów, nawet prawidłowo zaprojektowane, wykonane i eksploatowane, są obiektami, które w przyszłości są potencjalnym źródłem zanieczyszczeń wód powierzchniowych i podziemnych oraz powietrza atmosferycznego. Stare składowiska odpadów komunalnych z powodu braku odpowiednich regulacji prawnych często powstawały w nieodpowiednich warunkach gruntowo-wodnych, co w znacznym stopniu przyczyniało się do uwalniania toksycznych odcieków do gruntu. Rekultywacja terenów zdegradowanych jest rodzajem ratunku dla obszarów zanieczyszczonych. W niniejszym opracowaniu przedstawiono przegląd metod uszczelniania i rekultywacji składowisk odpadów na przestrzeni lat w różnych krajach na świecie.
Źródło:
Acta Scientiarum Polonorum. Architectura; 2022, 21, 2; 41-50
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AHP and GIS-Based Site Selection for a Sanitary Landfill: Case of Settat Province, Morocco
Autorzy:
Benezzine, Ghizlane
Zouhri, Abdeljalil
Koulali, Yahya
Powiązania:
https://bibliotekanauki.pl/articles/2025385.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sanitary landfill
household solid waste management
geographic information system
analytical hierarchy process
province of Settat
Morocco
Opis:
In Morocco, solid household waste is often disposed of in open air in unsuitable sites, causing adverse effects on humans and the environment. In the province of Settat, there are eight uncontrolled landfills. The present study aimed to determine the most suitable sites from an environmental and economic point of view to ensure good management on a regional scale. The investigation involved a combination of a multi-criteria method (the AHP analytical hierarchy process) and a GIS geographic information system (ArcGIS) with ten criteria: distance from the ground water, water surfaces, drilling, settlements, forests, roads, highway, land use, slope, and elevation. The suitability map showed that about 18.5% of the study area is suitable for installing a sanitary landfill.
Źródło:
Journal of Ecological Engineering; 2022, 23, 1; 1-13
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of fulvic acids generated in communes waste landfills
Charakterystyka kwasów fulwowych generowanych na składowiskach odpadów komunalnych
Autorzy:
Orliński, Tomasz
Anielak, Anna M.
Powiązania:
https://bibliotekanauki.pl/articles/1845426.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
humic acids
fulvic acids
landfill
leachate
humic substances
kwasy humusowe
kwasy fulwowe
wysypisko
odciek
substancje humusowe
Opis:
The leachate problem is important and difficult to solve in Poland and in the world. The composition and their properties leachates depend on the age of the landfill, type of waste, climatic conditions and the mode of operation of the landfill. A significant part of landfilled waste is subject to so-called humification. This process stabilizes organic substances in the landfill and creates humic substances that penetrate into the leachate. The leaks contain many toxic impurities, such as PAHs, pesticides, polychlorinated biphenyls and other substances hazardous to human health and life, which can be sorbed by humic substances. Leachates from three municipal landfills, differing in the characteristics of the stored waste, were studied. Fulvic acids (FAs) were extracted on the basis of affinity for specific solvents along with the use of sorption. The obtained acids were subjected to a qualitative analysis of the content of micro-impurities, essential elements forming the structure of the fulvic acid molecule, and their infrared spectra were tested. It has been noticed that with the age of waste deposited, the content of elemental carbon increases, and the amount of oxygen and hydrogen decreases. The degree of purity of fulvic acids was influenced by the time of waste storage, and the sulfur content depended on their characteristics. With the time of waste storage, the characteristics of the acids obtained were approaching humic acids, and the intensity of absorption bands clearly increased. The spectra obtained correlate well with those of fulvic acids available in the literature, and the findings provide scientific confirmation of the need for further research on the characteristics of fulvic acids.
Porównanie charakterystyk kwasów fulwowych wydobywanych z odcieków z trzech różnych składowisk komunalnych, różniących się charakterystyką składowanych odpadów, czasem ich unieszkodliwiania oraz sposobem funkcjonowania składowiska. Materiałem użytym do badań były odcieki z trzech różnych składowisk komunalnych. Kwasy fulwowe ekstrahowano na podstawie powinowactwa do określonych rozpuszczalników oraz adsorpcji na złożu jonitowym i kationitowym. Ilość kwasów fulwowych określono wagowo. Otrzymane kwasy fulwowe analizowano pod kątem składu pierwiastkowego i widm FT-IR. Zauważono wyraźną korelację pomiędzy wiekiem składowiska odpadów, a zawartością węgla i tlenu w badanych kwasach fulwowych. Zawartość siarki wynikała jedynie z rodzaju składowanych odpadów. Wraz z wiekiem składowania odpadów, czystość kwasów fulwowych maleje, rośnie stopień zaromatyzowania cząsteczki, a charakterystyka kwasów fulwowych zbliża się do kwasów huminowych. Wiek składowania znacząco wpływa na intensywność pasm absorbancji. Każdy z badanych odcieków zawierał znaczną ilość kwasów fulwowych, które były znacząco zanieczyszczone substancjami nieorganicznymi. Kwasy fulwowe wykazały wysoką aktywność chemiczną, co powoduje, że stają się nośnikami toksycznych mikrozanieczyszczeń. W typowych procesach zachodzących na oczyszczalniach ścieków oraz zakładach uzdatniania wody, kwasy fulwowe nie są usuwane, przez co stwarzają zagrożenie dla życia ludzi. Jedynie poznanie szczegółowej charakterystyki kwasów fulwowych, pozwoli na opracowanie zadowalających metod nie tylko usuwania i oczyszczania kwasów ale również wykorzystywania na przykład do nawożenia gleby. Nadal skład elementarny oraz charakterystyka budzi ogromne kontrowersje wśród badaczy. Dlatego niezwykle ważne są dalsze badania odkrywające każdą kolejną część tych zagadkowych substancji.
Źródło:
Archives of Environmental Protection; 2021, 47, 1; 41-52
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 159

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