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The research deals in complex with the issue of landfilling and with a possible use of biological indicators to assess the impact of landfill on its surroundings. The problem is topical as landfilling remains the most spread technology for the disposal of communal waste in the Czech Republic. Assessing the impact of the landfill on its environs, we based our study on the selected bioindicators present in 1995 and in 2007 – 2010. During the period of vegetation biomonitoring, we did not detect any significant impact of the landfills on the biotic composition of the environment and no symptoms of leaf area chlorosis or necrosis that would have indicated the direct impact of sanitary landfills operation on the locality. The Štěpánovice landfill and Kuchyňky landfill have a functional system of drains combined with the system of ground sealing and the system of seepage water drainage pits. It further has a sophisticated system to check fencing, fly-offs and to collect lightweight waste. Both landfills are constructed and operated in compliance with the most modern and strictest requirements and standards.
Vegetation can be used as bioindicators of site pollution by identifying the mobilization of heavy metals. This study was conducted to screen plants growing in a landfill site to determine their potential for metal accumulation. Plants selected were the Tanacetum vulgare and Lycopersicon esculentum. Based on results, it may be concluded that Tanacetum vulgare can tolerate and sequester Cd from the soil. None of the plants were identified as metal hyper accumulators. However, Tanacetum vulgare was most effective in taking up metals and showed a higher enrichment coefficient of heavy metals, indicating its higher accumulation ability.
Our paper focused on the determination of heavy metals and nitrates in tomatoes (Lycopersicon esculentum). Four samples of tomatoes were analyzed by an accredited testing laboratory. The concentrations of heavy metals and nitrates in tomatoes spontaneously occurring on the landfill body meet the limits provided by law. Tomatoes from a chain store and private grower were used as standards. The conducted research complemented classic landfill monitoring (17 years) and long-term biomonitoring (6 years) of the landfill body and the nearest surroundings. Neither the concentrations of heavy metals in the tomatoes nor the concentrations of heavy metals in surface water, ground water, and leachate exceeded the limits stipulated by law. During the period of monitoring, no significant impact of the landfill on the environment was detected
This study was conducted to investigate heat generation in a landfill on a field scale, including the variation of temperatures. Data were collected at Štěpánovice landfill in southwestern Czech Republic. Temperatures were determined over a monitoring period of 21 months. Mean annual value of the difference between outdoor temperature and temperature at a depth of 100 cm in the landfill body in 2012 amounted to 5.4ºC, and for the reporting period of 2013 it equailed 5.2ºC. No significant differences among measured temperatures were recorded at particular depths (50 cm, 75 cm, and 100 cm). Mean temperature at the surface of the landfill within the whole reporting period was 3.2ºC higher than ambient temperature (in the reporting period). This is explained due to the decomposition activity within the landfill site leading to the emission of warm gases. The results provide new information for the estimation of the selection of plant species suitable for reclamation, which have higher chances to tolerate the unfavorable conditions they would be exposed to a technically reclaimed landfill body
The biodegradability of different plastic material was investigated under aerobic conditions. The samples were placed in the compost pile and were checked over 15 weeks. After the expiration of the experimental period it was found that the samples with the additive (samples 1, 2, and 3) had not decomposed, their color had not changed, and that no degradation or physical changes had occurred. SEM photomicrograph images of the surface of the samples confirm this statement. Samples 4, 5, 6, and 7 (certified as compostable) were decomposed. Samples 5, 6, and 7 exhibited the highest decomposition rates. The SEM observation showed that the film surface of the samples was totally eroded and its smoothness disappeared. The present study suggests that the biodegradable characteristics differed significantly depending on the type of biodegradable/ degradable plastics.
This paper provides information about biodegradability of biodegradable/degradable materials advertised as 100%-degradable or certified as compostable in a municipal solid-waste landfill. It describes a 12- month experiment with five samples that took place in a landfill. The results, demonstrated that the polyethylene sample with the additive (samples 1) and sample labelled as 100% degradable (sample 2) had not decomposed, and no physical changes had occurred; however, their color had changed slightly. Samples 2 and 3 (certified as compostable) did not decompose. However, sample 3 exhibited minor disruptions. Sample 5 was a control reference sample to confirm that the conditions of decomposition were suitable during the experiment, which was the case. The cellulose filter paper (sample 5) degraded after 8 months, implying that it was fully biodegraded (100%) and that the conditions required for biodegradation to occur in a sampling environment were present.
Internationally, almost 70% of municipal solid waste is disposed of in landfills and may contain hazardous substances in the form of paints, vehicle maintenance products, mercury-containing waste, pharmaceuticals, batteries, and many other products. The present study has attempted to address the problem of hazardous waste in the context of municipal solid waste generated in a typical urban scenario. The study was conducted in year 2013. The sorting of the waste was performed manually. Determining the quantity of hazardous and potentially hazardous ingredients in household waste was carried out on the 10 samples of the collection from the cities of Kroměříž (City 1) and Brno (City 2). Results revealed that the share of household hazardous waste found in Kuchyňky landfi ll was 2.047% of the total municipal solid waste stream. The results are based on actual measurements, where the percentage of household hazardous waste has been estimated based on sampling in a municipal landfill.
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W ostatnich latach, z powodu szybkiego rozwoju społeczeństwa, rośnie popyt na opony. Wiąże się to ze wzrostem produkcji zużytych opon. Jednym z głównych problemów, związanch ze zużytymi oponami, jest znalezienie odpowiedniego sposobu ich unieszkodliwiania. Unieszkodliwianie zużytych opon powinno być w zgodzie z zasadą zrównoważonego rozwoju. Oznacza to, że produkcyjnie i energetycznie wymagające produkty muszą być po ukończeniu swojej żywotności w 100% recyklowane, a uzyskane w ten sposób komponenty ponownie wykorzystane. Niniejsza praca zajmuje się problematyką zużytych opon jako cennego surowca. Celem pracy jest opisanie sytuacji unieszkodliwiania zużytych opon w Republice Czeskiej, w Unii Europejskiej (dalej EU – od roku 2004 w 25 krajach członkowskich, od roku 2007 w 27 krajach członkowskich) oraz na świecie. W dalszej części praca dotyczy problematyki wtórnego odbioru zużytych opon w Republice Czeskiej.
Our paper is focused on verification of research of the impact of waste landfills on the environment, using bioindicators. The goal of this study was to find how plants may be used to indicate some of the emissions from landfill sites. Sampling was carried out in 2007-09 and 2011-12. The obtained data were compared with a simple floristic list prepared in 1995. Selected bioindicators were used to estimate, confirm, or deny the impact of the landfill on the close vicinity.
This study focuses on the impact of a municipal solid waste (MSW) landfill on the environment. Phytotoxicity test was determined to assess ecotoxicity of landfill soil (Zdounky-Kuchyňky). White mustard (Sinapis alba L.) and barley (Hordeum vulgare L.) plants were allowed to grow in earthen pots, treated with soil samples to study the potential effect of landfill to the plant biomass production. Twenty-one days from the establishment of the experiment, sprouts and the number of growing plants occurring in the earthen pots were counted. The conducted research shows that the soil from the area of the landfill is not phytotoxic. According to the results of this research, it is possible to claim that the Zdounky-Kuchyňky MSW landfill is not a considerable source of pollution for the environment in present days.
The authors presented information on green roofs in the European Union (EU) based on the experience of construction companies in the Netherlands and Poland. The choice of these countries was related to the fact that Dutch land planners are interested in cooperating and sharing their experience with Polish specialists. The article also presents a brief history of the use of green roofs. The technical knowledge (on construction, the design of specialized covers and preparation of the entire system) have been gathered from Dutch companies specializing in plant breeding on green roofs. The authors described the advantages of green roofs and the just cause of financing these projects by the EU. Green roofs relieve some of the load on the sewage systems in cities by absorbing precipitation water. They help preventing the floods after storms and torrents. They reduce the negative consequences of heat islands effect and decrease CO₂ emission. Green roofs can solve problems in the areas of Poland that are exposed to harmful gases. Furthermore, green roofs act as a thermal insulation, thus less energy for winter heating and summer air conditioning (energy efficiency) is being used.
The eco-toxicological impact of copolyesters during composting was evaluated by plant growth tests with cress (Lepidium sativum) and barley (Hordeum vulgare). The research was conducted to determine if PET beverage bottles modified by lactic acid (copolyesters) and products of their biodegradation would affect compost. The results demonstrate that the composts on which the examined materials were degrading were not toxic to the plants. Compared to the reference sample, the germination and growth of plants were stimulated. The plants showed an increase in plant biomass. Changes in appearance, retarded growth, or necrotic changes were not observed. The resulting compost did not exhibit any unfavorable influence on compost quality, and the products of degradation affected the growth and development of plants positively.
Municipal solid waste landfills are considered to be important sources of groundwater contamination due to the leakage of leachate. Landfill leachate is undoubtedly one of the most challenging wastewaters in terms of treatment. Fungi can be used to treat a landfill leachate. Therefore, the aims of this research were to evaluate the biosorption potential of Pleurotus ostreatus as low-cost adsorbent for the toxicity removal from raw landfill leachate. The objective was also to study the change of leachate toxicity before and after biosorption tests using Sinapis alba L. growth inhibition test. It can be concluded that the growth inhibition (%) of Sinapis alba L. for landfill leachate samples after biosorption tests were in the range of 31.55–96.16%. These samples were strongly toxic, but the toxicity compared to samples before biosorption tests decreased for all samples.
The objective of this study was to evaluate and compare the biodegradability and biodegradation rates of ‘single-use' plastic bags available on the market and labeled as degradable/biodegradable. The test was carried out under both aerobic and anaerobic conditions. The project length was 20 months. The biodegradation results in the laboratory conditions demonstrate that none of the degradable/ biodegradable bags showed visual changes and/or were broken into pieces and none of them experienced any disintegration or degradation. The cellulose filter paper (CFP) completely degraded after 10 days in the aerobic conditions and after 5 month in the anaerobic conditions, implying that the conditions required for biodegradation to occur in a sampling environment were present.
Research of the biodegradability of degradable/biodegradable plastic material in various types of environments. Research was carried out in order to assess biodegradability of degradable/biodegradable materials made of HDPE and mixed with totally degradable plastic additive (TDPA additive) or made of polyethylene (PE) with the addition of pro-oxidant additive (d2w additive), advertised as 100% degradable or certified as compostable within various types of environments. Research conditions were: (i) controlled composting environment – laboratory-scale, (ii) real composting conditions – domestic compost bin, (iii) real composting conditions – industrial composting plant and (iv) landfill conditions. The results demonstrate that the materials made of HDPE and mixed with totally degradable plastic additive (TDPA additive) or made of polyethylene (PE) with the addition of pro- -oxidant additive (d2w additive) or advertised as 100% degradable did not biodegrade in any of the above-described conditions and remained completely intact at the end of the tests. Biodegradation of the certified compostable plastic bags proceeded very well in laboratory-scale conditions and in real composting conditions – industrial composting plant, however, these materials did not biodegrade in real composting conditions – domestic compost bin and landfill conditions.
The authors in the article presented information on the possibility of separating rainwater from municipal sewage and the possibilities of its re-use. They based their considerations on the experience of municipalities in the European Union (EU), the Dutch one in particular. The choice of the Dutch municipality of Apeldoorn was not coincidental. Apeldoorn has the highest rainfall level in all of the Netherlands. What is more, The Netherlands is one of those European countries that is highly advanced in water management. This is due to the fact that it is a small country with a very dense population, which must deal with the distribution of water resources for very populated municipalities. Moreover, 50% of this country is situated below the sea level, which causes problems with excess water in coastal provinces. The Dutch are therefore trying to manage water using all technical and legal possibilities. This article presents some solutions related to the separation of rainwater from municipal sewage and the financial possibilities offered by the municipality of Apeldoorn. The authors also shortly presented history of the use of rainwater, including Polish experiences. The authors applied research methods based on examination of documents in the municipality of Apeldoorn and interviewed municipal employees responsible for the project of separation rainwater from sewage.
Waste disposal in landfills is one of most frequently used methods of municipal solid waste (MSW) management. Landfills disturb to a certain extent the landscape character and disposal of waste in landfils represents one of human activities that may impair natural ecosystems. Due to waste decomposition, numerous chemical, physical and biological reactions and changes occur within the landfill body that give rise to dangerous and harmful substances. One of the problems very often occurring in the landfill surrounding is soil contamination. This study is focused on the assessment of soils contamination due to the operation of sanitary MSW landfill. The aim was to determine the effect of diatomite and compost on soil phytotoxicity. Toxicity was assessed in a pot experiment with soil amendments. Soil samples (sample 1–4) for the experiment were taken from the landfill site (sample 1–3) and its surrounding (sample 4). The aim of this study was to check relation between soil amendments added to the soil sample and the amount of biomass produced by some plant species (Sinapis alba L., Hordeum vulgare L.). In this study soil amendments improved soil characteristics. The paper shows that a higher percentage of biomass weight increase was recorded in samples 1, 2, 3 and 4 with the addition of compost. As compared with the addition of diatomite, biomass weight in the samples with the added compost increased on average by 67.25%. Therefore, it can be stated that the addition of diatomite did not advance the plant growth as much as the addition of compost. The potential of using soil amendments in practice is promising.
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